CN217447920U - Clinical bone saw - Google Patents

Abstract

The utility model is suitable for the technical field of medical equipment, and provides a clinical bone saw, which comprises a base, and a horizontal plate movably arranged above the base and parallel to the base through two sets of telescopic parts. The upper part of the base is also fixedly provided with a receiving platform for supporting the legs of the patient; A telescopic plate and a cylinder installed on the side of the vertical plate facing the receiving platform, the end of the cylinder piston rod is fixed with the telescopic plate, and an assembly plate is also movably arranged under the horizontal plate through an elastic mechanism , through the cooperation of various mechanisms and components, the automation of the operation is realized, and the final incision depth can be adjusted in advance according to the amount of elastic potential energy stored by the elastic mechanism, so the accuracy of the operation is greatly improved, which is beneficial to The operation went smoothly.

Description

A clinical bone saw

technical field

The utility model belongs to the technical field of medical instruments, in particular to a clinical bone saw.

Background technique

Orthopedic surgery is a diagnosis and treatment subject in medical institutions. It is a general term for trauma and spine surgery. It is a professional department for the diagnosis and treatment of sexual deformity, brachial plexus injury and nerve entrapment. Orthopedic and joint surgery mainly treats limb fractures, severe multiple injuries, spine and pelvic fractures, bone and joint infections, tuberculosis, tumors, as well as cervical and lumbar shoulder disc herniation, bone and joint deformity correction, knee and hip replacement, etc.

With the development and progress of science and technology, orthopedics has made great progress in diagnosis and treatment. When a patient has necrotic bone tissue or needs an osteotomy, medical personnel need to use an osteosaw to handle the necrotic bone tissue. Or bone for osteotomy, after long-term clinical practice of orthopedic surgery, the bone saw is one of the most commonly used medical instruments in orthopedic surgery, and the bone saw is the main tool for amputation surgery.

Today's orthopedic surgery is usually performed by medical staff holding a bone saw and performing the surgery manually. As a result, due to the uncertainty of manual operation, it is easy to cause the problem that the depth of incision is difficult to control, so it is not ideal. effect of surgery.

Utility model content

The utility model provides a clinical bone saw, which aims to solve the problem that the cutting depth of the existing bone saw is difficult to control during use.

The utility model is realized in the following way: the clinical bone saw includes a base, and a horizontal plate movably arranged above the base and parallel to the base through two sets of telescopic parts, and the upper part of the base is also fixedly arranged There is a platform for supporting the patient's legs;

The telescopic element comprises a vertical plate fixedly installed on the upper part of the base and hollow inside, a telescopic plate slidably arranged in the vertical plate, and a cylinder installed on the side of the vertical plate facing the receiving platform, The end of the cylinder piston rod is fixed with the telescopic plate;

The lower part of the horizontal plate is also movably provided with an assembly plate through an elastic mechanism, the assembly plate is arranged in a "U" shape, and a saw disk is installed therein, and a side part of the assembly plate is also installed with a drive for driving. a drive motor for rotating the saw disc;

The upper part of the horizontal plate is provided with a pointer connected with the elastic mechanism, and the horizontal plate is also provided with a scale for displaying the depth of the saw disc cutting into the patient's leg;

A fixing plate is also installed between the two vertical plates through bolts, a through opening for the patient's foot to pass through is opened at the center of the fixing plate, and the fixing plate is away from the receiving platform Two limiters for clamping and fixing the patient's calf are movably arranged on one side of the device through a threaded drive mechanism;

The limiting member is arranged in an arc shape, and the screw driving mechanism is installed on the upper part of the base.

Further, the elastic mechanism includes an energy storage assembly installed at the bottom of the horizontal plate and two groups of guide assemblies connecting the assembly plate and the cross plate, wherein the two groups of the guide assemblies are respectively located in the assembly plate. on both sides of the board.

Further, the energy storage assembly includes a cross bar fixedly installed at the bottom of the cross plate, two sliders symmetrically slidably arranged on the cross bar, and a spring connecting the two sliders, the spring sleeved on the outer circumference of the cross bar;

Each of the two sliding blocks is connected with the assembling plate through a connecting plate, and two ends of the connecting plate are respectively connected in rotation with the bottom of the sliding block and the upper part of the assembling plate.

Further, the guide assembly includes a guide column fixedly installed on the side of the assembly plate and perpendicular to the horizontal plate and a fixed pipe fixed on the side of the horizontal plate, the guide column passing through The fixed tube is slidably connected therewith.

Further, a cylinder is fixed on the upper part of one of the sliders, the cylinder extends to the upper part of the horizontal plate, the pointer is fixedly installed on the end of the cylinder away from the slider, and the The horizontal plate is provided with a bar-shaped through groove for the cylinder to move.

Further, the screw drive mechanism includes a bidirectional screw rod rotatably mounted on the upper part of the base and two moving plates arranged on the bidirectional screw rod, and the bottom surface of the moving plate slides with the upper surface of the base. fit;

The moving plate and the two-way screw are screwed together, and the limiting member is fixedly installed on the side of the moving plate.

Compared with the prior art, the beneficial effects of the present utility model are:

The drive motor starts to drive the saw disc to rotate, and starts to cut the patient's leg. At the same time, the elastic mechanism gradually releases the elastic potential energy, so that the saw disc is continuously extended. After the pointer is reset, the cutting ends. Through the cooperation of various mechanisms and components, the automation of the operation is realized, and the final incision depth can be regulated in advance according to the amount of elastic potential energy stored by the elastic mechanism, so the accuracy of the operation is greatly improved, which is beneficial to the operation. successful development.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. It is obvious to those skilled in the art that In other words, on the premise of no creative labor, other drawings can also be obtained based on these drawings.

FIG. 1 is a schematic diagram of the structure provided by the present invention.

FIG. 2 is a schematic structural diagram of another angle provided by the present invention.

FIG. 3 is a schematic structural diagram of another angle provided by the present invention.

FIG. 4 is a disassembled view of the elastic mechanism provided by the present invention.

FIG. 5 is a disassembled view of the screw drive mechanism provided by the present invention.

Reference number:

1- base; 2- horizontal plate; 3- saw disc; 4- vertical plate; 5- telescopic plate; 6- cylinder; -Slider; 12-spring; 13-cylinder; 14-pointer; 15-connecting plate; 16-assembly plate; 17-guide column; 18-fixed pipe; 19-two-way screw; 20-moving plate; 21-pass mouth.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

In order to effectively describe the embodiments of the present invention, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The utility model provides a clinical bone saw to solve the problem that the cutting depth of the existing bone saw is difficult to control during use.

Please refer to Fig. 1, Fig. 2 and Fig. 3. The clinical bone saw includes a base 1 and a transverse plate 2. The transverse plate 2 is movably arranged above the base 1 through two sets of telescopic parts, and is connected with the base. 1 parallel.

The telescopic piece includes a vertical plate 4 fixed on the upper part of the base 1, a cylinder 6 installed on the side of the vertical plate 4, and a telescopic plate 5 fixed on the end of the piston rod of the cylinder 6. The interior of the board 4 is hollow, and the telescopic board 5 and the vertical board 4 are slidably fitted together.

Wherein, the cylinder 6 can also be replaced by a hydraulic cylinder or an electric telescopic rod, which is not specifically limited in this application, as long as the driving requirements are met, which can be selected according to actual needs.

When the piston rod of the cylinder 6 is extended, it will drive the telescopic plate 5 to slide upward in the vertical plate 4, thereby increasing the height of the horizontal plate 2. On the contrary, when the piston rod is contracted, it will drive the telescopic plate 5 to the vertical direction. The downward movement, correspondingly, reduces the height of the cross plate 2 .

The upper part of the base 1 is also fixedly provided with a receiving platform 7 for supporting the patient's leg.

In addition, an arc-shaped concave portion is provided at the center of the receiving platform 7, so that the patient's leg can be placed in the concave portion during the operation, which can play a certain position limit function.

An assembly plate 16 is also movably provided under the transverse plate 2 through an elastic mechanism. The assembly plate 16 is arranged in a "U" shape, and the saw disc 3 is installed therein, and the assembly plate 16 is also installed on the side. There is a drive motor for driving the saw disc 3 to rotate.

The elastic mechanism includes an energy storage assembly installed at the bottom of the horizontal plate 2 and two sets of guide assemblies connecting the assembly plate 16 and the lateral plate 2, wherein the two sets of the guide assemblies are located on the assembly plate respectively. 16 on both sides.

Referring to FIG. 4 , the energy storage assembly includes a cross bar 10 fixedly installed at the bottom of the cross plate 2 , two sliding blocks 11 slidably arranged on the cross bar 10 , and a connecting block 11 connecting the two sliding blocks 11 . Spring 12.

The spring 12 is sleeved on the outer circumference of the cross bar 10 , and the two sliding blocks 11 are symmetrically arranged on the cross bar 10 .

Each of the two sliding blocks 11 is connected to the assembling plate 16 through a connecting plate 15 , and two ends of the connecting plate 15 are rotatably connected to the bottom of the sliding block 11 and the upper part of the assembling plate 16 respectively.

It should be added that balls are also provided on the inner wall of the through hole on the slider 11 for the cross bar 10 to pass through, which is used to reduce the friction between the slider 11 and the cross bar 10, which is beneficial to the final The spring 12 stores and releases elastic potential energy.

The guide assembly includes a guide post 17 fixedly installed on the side of the mounting plate 16 and a fixed tube 18 fixedly installed on the side of the transverse plate 2.

The guide post 17 is perpendicular to the horizontal plate 2 , the central axes of the guide post 17 and the fixing tube 18 are coincident, and the guide post 17 penetrates the fixing tube 18 and is slidably connected therewith.

A cylinder 13 is fixed on the upper part of one of the sliders 11 , the cylinder 13 protrudes to the upper part of the horizontal plate 2 , and the pointer 14 is fixedly installed on the end of the cylinder 13 away from the slider 11 . , and the horizontal plate 2 is provided with a bar-shaped through groove for the movement of the cylinder 13 .

In use, during the downward movement of the saw disc 3 after contacting the patient's leg, the assembly plate 16 will push the two sliders 11 to slide away from each other on the crossbar 10 through the two connecting plates 15. Correspondingly, the sliders 11 drives the cylinder 13 to move in the bar-shaped chute, the pointer 14 points to the scale on the horizontal plate 2, and the spring 12 is stretched to store a certain elastic potential energy;

After the cylinder 6 stops working, the saw disc 3 starts to run, the spring 12 gradually releases the elastic potential energy, and the two sliders 11 are gradually reset on the cross bar 10, so the two connecting plates 15 push the saw disc 3 to cut into the patient's leg. , During the whole process, the guide column 17 slides in the fixed tube 18, which effectively guides the vertical rise and fall of the saw disc 3, and provides a guarantee for the precision of the operation.

The upper part of the transverse plate 2 is provided with a pointer 14 connected with the elastic mechanism, and the transverse plate 2 is also provided with a scale for displaying the depth of the saw disc 3 cutting into the patient's leg;

A fixing plate 8 is also installed between the two vertical plates 4 by means of bolts, and a through hole 21 for the patient's foot to pass through is opened in the center of the fixing plate 8 .

Two limiting members 9 are movably provided on the side of the fixing plate 8 away from the receiving platform 7 through a threaded drive mechanism. Hold fixed.

The screw drive mechanism is installed on the upper part of the base 1, and includes a bidirectional screw rod 19 rotatably mounted on the upper part of the base 1 and two moving plates 20 arranged on the bidirectional screw rod 19, and two of the The bottom surface of the moving plate 20 is slidingly attached to the upper surface of the base 1 .

Specifically, a through hole is formed on the moving plate 20, a threaded sleeve for the bidirectional screw rod 19 to pass through is fixed in the through hole, and an inner wall of the threaded sleeve is provided with a threaded sleeve. The thread matched with the two-way screw 19.

The moving plate 20 and the bidirectional screw rod 19 are screwed together, and the limiting member 9 is fixedly installed on the side of the moving plate 20 .

Further, the two-way screw 19 is provided with threads with opposite directions of rotation at both ends, and a knob is fixed on one end, so that the medical staff can rotate the two-way screw 19 during use.

When the two-way screw rod 19 is rotated, since the bottom surface of the moving plate 20 is slidingly attached to the upper surface of the base 1, the two moving plates 20 are threadedly engaged with the two-way screw rod 19 at the same time, driving the two limiting members 9 to move closer to each other, Until the patient's lower leg is clamped and fixed, in this way, the stability of the patient's leg during the cutting process of the saw disc 3 is enhanced.

When in use, the patient's legs are prevented from the receiving platform 7, and the patient's feet are passed through the opening 21. Then, the screw driving mechanism works to drive the two limiting members 9 to move closer to each other, which is very small for the patient. Immobilization of the legs to enhance stability during surgery;

Then, after the patient is anesthetized, the air cylinder 6 works to drive the telescopic plate 5 to slide in the vertical plate 4, and the transverse plate 2 and the saw disc 3 move down. After the saw disc 3 contacts the patient's leg, the air cylinder 6 continues to work In the process of moving, the elastic mechanism will trigger the movement and store the elastic potential energy. Correspondingly, the pointer 14 moves on the horizontal plate 2. At this time, the medical staff can obtain the saw according to the scale value pointed by the pointer 14 at this time. The depth to which disc 3 is cut.

After the pointer 14 points to the cutting depth required for the operation, the air cylinder 7 stops working. At this time, a certain elastic potential energy is stored in the elastic mechanism, and the drive motor starts to drive the saw disc 3 to rotate, and starts to cut the patient's leg. At the same time, the elastic mechanism gradually releases the elastic potential energy, so that the saw disc 3 is continuously extended. After the pointer 14 is reset, the cutting ends.

To sum up, the automation of the operation is realized through the cooperation of various mechanisms and components, and the final incision depth can be regulated in advance according to the amount of elastic potential energy stored by the elastic mechanism, so the operation is greatly improved. Accuracy is conducive to the smooth development of surgery.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (6)

1. A clinical bone saw is characterized by comprising a base (1) and a transverse plate (2) which is movably arranged above the base (1) through two groups of telescopic parts and is parallel to the base (1), wherein the upper part of the base (1) is also fixedly provided with a bearing table (7) for bearing the legs of a patient;

the telescopic piece comprises a vertical plate (4) which is fixedly arranged on the upper part of the base (1) and is hollow inside, a telescopic plate (5) which is arranged in the vertical plate (4) in a sliding manner, and an air cylinder (6) which is arranged on one side of the vertical plate (4) facing the bearing table (7), wherein the tail end of a piston rod of the air cylinder (6) is fixed with the telescopic plate (5);

an assembly plate (16) is movably arranged below the transverse plate (2) through an elastic mechanism, the assembly plate (16) is arranged in a U shape, a saw disc (3) is installed in the assembly plate, and a driving motor used for driving the saw disc (3) to rotate is further installed on the side portion of the assembly plate (16);

the upper part of the transverse plate (2) is provided with a pointer (14) connected with the elastic mechanism, and the transverse plate (2) is also provided with scales for displaying the cutting depth of the saw disc (3) to the leg of the patient;

a fixing plate (8) is further mounted between the two vertical plates (4) through a bolt, a through hole (21) for the foot of the patient to pass through is formed in the center of the fixing plate (8), and two limiting parts (9) for clamping and fixing the lower leg part of the patient are movably arranged on one side, away from the bearing table (7), of the fixing plate (8) through a thread driving mechanism;

the limiting piece (9) is arranged in an arc shape, and the thread driving mechanism is installed on the upper portion of the base (1).

2. Clinical bone saw according to claim 1, characterized in that the elastic means comprise an energy storage assembly mounted at the bottom of the cross plate (2) and two sets of guiding assemblies connecting the assembly plate (16) with the cross plate (2), wherein the two sets of guiding assemblies are located on either side of the assembly plate (16).

3. The clinical bone saw as claimed in claim 2, wherein the energy storage assembly comprises a cross bar (10) fixedly mounted at the bottom of the cross plate (2), two sliding blocks (11) symmetrically and slidably arranged on the cross bar (10), and a spring (12) connecting the two sliding blocks (11), wherein the spring (12) is sleeved on the periphery of the cross bar (10);

the two sliding blocks (11) are respectively connected with the assembly plate (16) through a connecting plate (15), and two ends of the connecting plate (15) are respectively connected with the bottom of the sliding blocks (11) and the upper part of the assembly plate (16) in a rotating mode.

4. Clinical bone saw according to claim 2, characterized in that said guiding assembly comprises a guiding post (17) fixedly mounted on the side of said assembly plate (16) and perpendicular to said cross plate (2) and a fixing tube (18) fixedly mounted on the side of said cross plate (2), said guiding post (17) extending through and being slidingly connected with said fixing tube (18).

5. The clinical bone saw as claimed in claim 3, wherein a cylinder (13) is fixed on the upper portion of one of the sliding blocks (11), the cylinder (13) extends to the upper portion of the transverse plate (2), the pointer (14) is fixedly installed on one end of the cylinder (13) far away from the sliding block (11), and the transverse plate (2) is provided with a strip-shaped through groove for moving the cylinder (13).

6. The clinical bone saw as claimed in claim 1, wherein the screw driving mechanism comprises a bidirectional screw rod (19) rotatably mounted on the upper part of the base (1) and two moving plates (20) arranged on the bidirectional screw rod (19), the bottom surfaces of the moving plates (20) are in sliding fit with the upper surface of the base (1);

the moving plate (20) is in threaded fit with the bidirectional screw rod (19), and the limiting piece (9) is fixedly installed on the side portion of the moving plate (20).

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