CN115153740A - Traditional chinese and western medicine combines minimal access to nail ware in orthopedics - Google Patents

Abstract

The invention discloses a minimally invasive nailing device for orthopedics with integrated traditional Chinese and Western medicine, and relates to the technical field of medical equipment. The handle and the connecting rod are provided with a transmission mechanism, and the output end of the transmission mechanism is fixedly connected to the outer side wall of the fixing sleeve through the side wall of the connecting rod; A rotating casing whose wall rotates, the bottom of the rotating casing is an opening; the top of the fixed sleeve is embedded with a rotating motor, and the output end of the rotating motor is fixedly connected with the top of the rotating casing; inside the rotating casing A clamping mechanism is provided, and a limiting device is provided at the bottom opening of the rotating casing. The stapler can hold traction needles of different sizes stably, and can adjust the angle of the stapler at the same time, thereby improving the operation efficiency of medical staff.

Description

A minimally invasive nailing device for orthopedics of integrated traditional Chinese and western medicine

technical field

The present invention relates to the technical field of medical equipment, and more particularly, to a minimally invasive nailing device for orthopaedics with integrated traditional Chinese and Western medicine.

Background technique

Orthopedics is one of the most common departments in major hospitals. It mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. With the changes of the times and society, the spectrum of orthopedic injuries and diseases has changed significantly. For example, diseases such as bone and joint tuberculosis, osteomyelitis, and polio have decreased significantly, and trauma caused by traffic accidents has increased significantly. Changes in the spectrum of orthopedic injuries require orthopedics to keep pace with the times.

In orthopedic surgery, in order to install and fix products such as brackets on the fractured bones of patients, it is often necessary to use a nailing device. The Chinese invention patent (CN111407391A) discloses a minimally invasive nailing device for orthopedics with integrated traditional Chinese and Western medicine. The nailer rotates and twists the sleeve to compress the protruding head into the fixed sleeve, thereby fixing the distraction needle in the fixed sleeve. Although this fixation method can realize the fixation of different sizes of bone distraction needles, the fixation method adopts a single point. Squeeze will cause the upper and lower ends of the bone traction needle to shake relatively during screwing; in addition, the minimally invasive nailing device cannot adjust the angle between the traction needle and the installation sleeve, and it is extremely inconvenient to operate when the screw needs to be screwed at different angles. .

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a minimally invasive nailing device for orthopedics with integrated traditional Chinese and western medicine, which can stably clamp traction needles of different sizes, and can adjust the nailing angle at the same time, thereby improving the operation efficiency of medical staff.

The above-mentioned technical purpose of the present invention is achieved by the following technical solutions: a minimally invasive orthopaedic nailing device with integrated traditional Chinese and Western medicine, comprising a handle, a connecting rod and a fixing sleeve, and the end of the handle is fixedly connected to the end of the connecting rod , a transmission mechanism is arranged in the handle and the connecting rod, and the output end of the transmission mechanism is fixedly connected with the outer side wall of the fixed sleeve through the side wall of the connecting rod; A rotating rotating casing, the bottom of the rotating casing is an opening; the top of the fixed sleeve is embedded with a rotating motor, and the output end of the rotating motor is fixedly connected with the top of the rotating casing; There is a clamping mechanism, and the bottom opening of the rotating casing is provided with a limiting device;

The clamping mechanism includes a servo motor, a threaded rod, a bearing and two arc-shaped splints; the servo motor and the bearing are respectively embedded in the two ends of the inner cavity of the rotating casing, and the two ends of the threaded rod are respectively connected with the servo motor. The output end is fixedly connected with the bearing; the threaded rod includes two reverse thread segments, and the two arc-shaped splints are respectively sleeved on the two reverse thread segments of the threaded rod, and the bottom of the arc-shaped splint passes through the two reverse thread segments. The bottom opening of the over-rotating shell is located directly under the rotating shell.

By adopting the above technical solution, the two arc-shaped splints are simultaneously sleeved on the two opposite threaded segments of the threaded rod, the threaded rod is fixedly connected to the output end of the servo motor, and the concave surfaces of the arc-shaped splint are opposite to each other, so that the servo motor drives the The threaded rod rotates to achieve the effect of clamping and fixing different sizes of bone traction needles; the output end of the rotating motor is fixedly connected to the top of the rotating housing, and the rotating motor drives the firmly clamped bone distraction needles to rotate, so as to achieve Nail work.

The present invention is further provided as follows: the limiting device includes a top plate and at least two fixing rods; the side wall of the top plate is fixedly connected with the end of the fixing rod, and the end of the fixing rod far away from the top plate is open to the bottom of the rotating casing fixed connection at the side wall.

By adopting the above technical solution, the top plate and the fixing rod are installed at the bottom opening of the rotating casing, so that the bone distraction needle inserted into the fixing sleeve can be limited, and the bone distraction needle can be prevented from contacting with the threaded rod on the top.

The present invention is further provided as follows: the transmission mechanism comprises a knob, a first rotating shaft, a first bevel gear, a second bevel gear, a transmission shaft, a third bevel gear, a fourth bevel gear and a second rotating shaft; the knob is located on the top of the handle, The top of the rotating shaft 1 is fixedly connected with the bottom of the knob, the bottom of the rotating shaft 1 is located in the handle and is connected with the bevel gear 1, the bevel gear 1 meshes with the bevel gear 2, and the end of the transmission shaft is connected with the bevel gear 1. The second bevel gear is connected, the end of the transmission shaft away from the second bevel gear is connected with the third bevel gear, the transmission shaft is parallel to the connecting rod; the third bevel gear meshes with the fourth bevel gear; the rotating shaft The end of the second is connected with the fourth bevel gear, and the second rotating shaft passes through the side wall of the connecting rod and is fixedly connected to the outer side wall of the fixed sleeve; the connecting rod is provided with a support block, and the support block is sleeved on the transmission shaft , the transmission shaft is movably connected with the support block.

By adopting the above technical solution, the medical staff can realize the angle adjustment of the fixed sleeve by rotating the knob, thereby adjusting the angle of the nail, and improving the operation efficiency of the medical staff.

The present invention further provides that: the handle is provided with a battery cavity, the end of the handle away from the connecting rod is provided with a battery cover for opening and closing the battery cavity, and the top of the handle is provided with a switch button and a fixing button.

By adopting the above technical solution, the battery cover is provided to facilitate the operator to replace the battery; the switch button and the fixed button are provided on the top of the handle, so that the independent control of the rotating motor and the servo motor can be realized.

The present invention further provides that: the outer side wall of the handle is fixedly sleeved with a non-slip sleeve.

By adopting the above technical solution, a layer of anti-skid cover is sleeved on the outer side wall of the handle to avoid slippage when the handle is held by hand.

The present invention further provides that: rubber pads are fixedly attached to the opposite side walls of the two arc-shaped splints.

By adopting the above technical solution, the rubber pad can increase the frictional force between the rubber pad and the bone distraction needle, so that the clamping mechanism can clamp the bone distraction needle more stably.

To sum up, the present invention has the following beneficial effects:

1. Sleeve the two arc-shaped splints on the two opposite threaded segments of the threaded rod at the same time, the threaded rod is fixedly connected to the output end of the servo motor, and the concave surfaces of the arc-shaped splint are opposite, so that the threaded rod is driven by the servo motor to rotate, So as to achieve the effect of clamping and fixing bone distraction pins of different sizes;

2. The output end of the rotating motor is fixedly connected to the top of the rotating casing, and the fixed bone traction needle is driven to rotate by the rotating motor, so as to realize the nailing operation;

3. By setting the transmission mechanism, the medical staff can realize the angle adjustment of the fixed sleeve by rotating the knob, so as to adjust the nailing angle and improve the surgical efficiency of the medical staff.

Description of drawings

1 is a cross-sectional view of a minimally invasive orthopaedic nailing device in an embodiment of the present invention;

Fig. 2 is the enlarged view of A place in Fig. 1;

Fig. 3 is the enlarged view of B place in Fig. 1;

FIG. 4 is a top view of a minimally invasive nailing device for orthopedics of integrated traditional Chinese and Western medicine according to an embodiment of the present invention;

Fig. 5 is the structural representation in the fixed sleeve in the embodiment of the present invention;

Figure 6 is a cross-sectional view at A-A in Figure 5;

FIG. 7 is a connection relationship diagram between the limit ring and the second rotating shaft in the embodiment of the present invention.

In the figure: 1. Fixed sleeve; 2. Transmission shaft; 3. Connecting rod; 4. Support block; 5. Handle; 6. Battery cover; 7. Battery cavity; 8. Rotating chamber 2; 9. Bevel gear 2 ;10, bevel gear one; 11, rotating shaft one; 12, rotating chamber one; 13, bevel gear four; 14, limit ring; 15, rotating shaft two; 16, bevel gear three; 17, anti-skid sleeve; 18, fixed button; 19, switch button; 20, knob; 21, rotating shell; 22, servo motor; 23, threaded rod; 24, curved splint; 25, rubber pad; 26, top plate; 27, fixed rod; 28, bearing; 29, rotating motor; 30, annular bump.

Detailed ways

The present invention will be further described in detail below in conjunction with accompanying drawings 1-7.

Example: a cross-sectional view of a minimally invasive nailing device for orthopedics with integrated traditional Chinese and Western medicine, as shown in Figures 1 to 7, comprising a handle 5, a connecting rod 3 and a fixed sleeve 1, the end of the handle 5 and the end of the connecting rod 3 Fixed connection, a transmission mechanism is installed in the handle 5 and the connecting rod 3, the output end of the transmission mechanism is fixedly connected with the outer side wall of the fixed sleeve 1 through the side wall of the connecting rod 3, and the transmission mechanism is used to adjust the angle of the fixed sleeve 1; such as As shown in FIG. 5 , the fixed sleeve 1 is provided with a rotating casing 21 that can rotate along the inner side wall of the fixed sleeve 1, and the bottom of the rotating casing 21 is open; the top of the fixed sleeve 1 is embedded with a rotating motor 29, and the rotating motor The output end of 29 is fixedly connected with the top of the rotating casing 21; a clamping mechanism is fixedly installed in the rotating casing 21, and a limiting device is fixedly installed at the open bottom of the rotating casing 21;

The clamping mechanism includes a servo motor 22, a threaded rod 23, a bearing 28 and two arc-shaped splints 24; the servo motor 22 and the bearing 28 are respectively embedded in the two ends of the inner cavity of the rotating casing 21, and the two ends of the threaded rod 23 are respectively It is fixedly connected with the output end of the servo motor 22 and the bearing 28; as shown in FIG. 5, the threaded rod 23 includes two reverse thread segments, and the two reverse thread segments are symmetrically arranged along the middle position of the threaded rod 23, and the two The arc-shaped splints 24 are respectively sleeved on the two reverse thread segments of the threaded rod 23, and are also arranged mirror-symmetrically along the middle position of the threaded rod 23. The bottom of the arc-shaped splints 24 passes through the bottom opening of the rotating housing 21 and is located Right below the rotating housing 21 .

The limiting device includes a top plate 26 and two fixed rods 27; two fixed rods 27 are used, so that the arc-shaped splint 24 is also sleeved on the fixed rod 27, and when the fixed rod 27 translates along the threaded rod 23, it is also Translate along the fixed rod 27; the side wall of the top plate 26 is fixedly connected to the ends of the two fixed rods 27 at the same time, and the two fixed rods 27 are symmetrically distributed on both sides of the top plate 26, and the fixed rod 27 is far away from the end of the top plate 26 and rotates The side wall of the bottom opening of the casing 21 is fixedly connected.

The transmission mechanism includes a knob 20, a rotating shaft 11, a bevel gear 1 10, a bevel gear 2 9, a transmission shaft 2, a bevel gear 3 16, a bevel gear 4 13 and a rotating shaft 2 15; as shown in Figure 2, the handle 5 There is a rotating chamber 12 at the connection with the connecting rod 3, and setting the rotating chamber 12 can make the bevel gear 10 and the bevel gear 2 rotate; the knob 20 is located on the top of the handle 5, and the top of the rotating shaft 11 It is fixedly connected with the bottom of the knob 20, the bottom of the rotating shaft 11 is located in the rotation chamber 1 12 in the handle 5, and is connected with the bevel gear 10, the bevel gear 1 is meshed with the bevel gear 2 9, the transmission shaft 2 The end is connected with the second bevel gear 9; as shown in Figure 3, at the position where the connecting rod 3 is close to the fixed sleeve 1, there is a rotating chamber two 8, and the function of the rotating chamber two is to ensure the third bevel gear 16 And the bevel gear four 13 can rotate, the end of the transmission shaft 2 away from the bevel gear two 9 is connected with the bevel gear three 16, the transmission shaft 2 is parallel to the connecting rod 3; the bevel gear three 16 meshes with the bevel gear four 13 , and the plane direction of the bevel gear 4 13 faces the fixed sleeve 1; the end of the rotating shaft 2 15 is connected with the bevel gear 4 13, and the rotating shaft 2 15 passes through the side wall of the connecting rod 3 and is fixedly connected with the outer side wall of the fixed sleeve 1; such as As shown in FIGS. 3 and 7 , two annular bumps 30 are fixedly connected to the second rotating shaft 15 , the limit ring 14 is fixedly connected to the inner side wall of the connecting rod 3 , and the bumps are located in the limit ring 14 and are connected with the limit ring 14 is connected movably, so that the limit ring 14 can not only support the second shaft 15, but also avoid the left and right translation of the second shaft 15; a support block 4 is fixedly installed in the connecting rod 3, and the support block 4 is sleeved on the transmission shaft 2, the transmission shaft 2 can rotate in the support block 4.

A battery cavity 7 is opened in the handle 5, and a battery can be installed in the battery cavity 7. The end of the handle 5 away from the connecting rod 3 is provided with a battery cover 6 for opening and closing the battery cavity 7. As shown in FIG. 1, the battery cover 6 is connected to the battery cavity. The inner side wall of 7 is threadedly connected, the battery cover 6 is used to fix the battery, the top of the handle 5 is equipped with a switch button 19 and a fixing button 18, and the switch button 19 is used to control the rotation of the rotating motor 29, so as to realize the nailing operation and fixation. The button 18 is used to adjust the rotation of the servo motor 22 for fixing the bone distraction pin.

The outer side wall fixing sleeve 1 of the handle 5 is connected with a non-slip sleeve 17 .

Rubber pads 25 are fixedly attached to opposite side walls of the two arc-shaped splints 24 .

Working principle: When the medical staff puts the bone traction needle into the fixed sleeve 1, press the fixed button 18 continuously, the fixed button 18 triggers the control chip (not marked in the figure) to adjust the rotation of the servo motor 22, and the rotation of the servo motor 22 drives the threaded rod 23 is rotated, because the two arc-shaped splints 24 are simultaneously sleeved on the two reverse thread segments of the threaded rod 23, so that the two arc-shaped splints 24 move relative to each other, and finally the bone traction pins are fixed and clamped by the rubber pad 25. After the fixation is stable, the medical staff adjusts the angle of the fixation sleeve 1 and the bone distraction needle according to the specific nailing position. 10 meshes with the second bevel gear 9, so that the second bevel gear 9 rotates with the transmission shaft 2 at the same time, because the other end of the transmission shaft 2 is fixedly connected with the third bevel gear 16, so that the third bevel gear 16 rotates, and the third bevel gear 16 rotates. 16 meshes with the bevel gear four 13, so that the bevel gear four 13 and the rotating shaft two 15 rotate at the same time, because the rotating shaft two 15 is fixedly connected with the outer side wall of the fixed sleeve 1, so as to adjust the angle of the fixed sleeve 1 and the bone traction needle; During the nailing operation, the medical staff can press the switch button 19 to trigger the control chip to adjust the rotation of the rotating motor 29. The rotating motor 29 drives the entire rotating housing 21 to rotate, and drives the bone distraction needle to rotate, so as to perform the nailing operation.

This specific embodiment is only an explanation of the present invention, and it does not limit the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as needed after reading this specification, but as long as the rights of the present invention are used All claims are protected by patent law.

Claims (6)

1. The utility model provides a combined traditional chinese and western medicine orthopedics is nail ware on wicresoft, includes handle (5), connecting rod (3) and fixed cover (1), the tip fixed connection of the tip of handle (5) and connecting rod (3), characterized by: a transmission mechanism is arranged in the handle (5) and the connecting rod (3), and the output end of the transmission mechanism penetrates through the side wall of the connecting rod (3) and is fixedly connected with the outer side wall of the fixing sleeve (1); a rotary shell (21) capable of rotating along the inner side wall of the fixing sleeve (1) is arranged in the fixing sleeve (1), and the bottom of the rotary shell (21) is provided with an opening; a rotating motor (29) is embedded in the top of the fixed sleeve (1), and the output end of the rotating motor (29) is fixedly connected with the top of the rotating shell (21); a clamping mechanism is arranged in the rotary shell (21), and a limiting device is arranged at an opening at the bottom of the rotary shell (21);

the clamping mechanism comprises a servo motor (22), a threaded rod (23), a bearing (28) and two arc-shaped clamping plates (24); the servo motor (22) and the bearing (28) are respectively embedded at two ends of an inner cavity of the rotary shell (21), and two ends of the threaded rod (23) are respectively fixedly connected with the output end of the servo motor (22) and the bearing (28); the threaded rod (23) comprises two reverse threaded sections, the two arc-shaped clamping plates (24) are respectively sleeved on the two reverse threaded sections of the threaded rod (23), and the bottoms of the arc-shaped clamping plates (24) penetrate through the bottom opening of the rotating shell (21) and are located right below the rotating shell (21).

2. The minimally invasive screw feeder for the orthopedics department combining traditional Chinese medicine and western medicine according to claim 1 is characterized in that: the limiting device comprises a top plate (26) and at least two fixing rods (27); the side wall of the top plate (26) is fixedly connected with the end part of a fixing rod (27), and the end part of the fixing rod (27) far away from the top plate (26) is fixedly connected with the side wall of the bottom opening of the rotary shell (21).

3. The minimally invasive nail feeding device for orthopedics department combining traditional Chinese medicine and western medicine according to claim 1, is characterized in that: the transmission mechanism comprises a knob (20), a first rotating shaft (11), a first conical gear (10), a second conical gear (9), a transmission shaft (2), a third conical gear (16), a fourth conical gear (13) and a second rotating shaft (15); the knob (20) is positioned at the top of the handle (5), the top of the first rotating shaft (11) is fixedly connected with the bottom of the knob (20), the bottom of the first rotating shaft (11) is positioned in the handle (5) and is connected with the first conical gear (10), the first conical gear (10) is meshed with the second conical gear (9), the end part of the transmission shaft (2) is connected with the second conical gear (9), the end part of the transmission shaft (2), far away from the second conical gear (9), is connected with the third conical gear (16), and the transmission shaft (2) is parallel to the connecting rod (3); the third bevel gear (16) is meshed with the fourth bevel gear (13); the end part of the second rotating shaft (15) is connected with the fourth conical gear (13), and the second rotating shaft (15) penetrates through the side wall of the connecting rod (3) to be fixedly connected with the outer side wall of the fixed sleeve (1); the connecting rod (3) is internally provided with a supporting block (4), the supporting block (4) is sleeved on the transmission shaft (2), and the transmission shaft (2) is movably connected with the supporting block (4).

4. The minimally invasive screw feeder for the orthopedics department combining traditional Chinese medicine and western medicine according to claim 1 is characterized in that: a battery cavity (7) is arranged in the handle (5), a battery cover (6) for opening and closing the battery cavity (7) is arranged at the end part, far away from the connecting rod (3), of the handle (5), and a switch button (19) and a fixed button (18) are arranged at the top of the handle (5).

5. The minimally invasive screw feeder for the orthopedics department combining traditional Chinese medicine and western medicine according to claim 1 is characterized in that: the outer side wall fixing sleeve (1) of the handle (5) is connected with an anti-skidding sleeve (17).

6. The minimally invasive screw feeder for the orthopedics department combining traditional Chinese medicine and western medicine according to claim 1 is characterized in that: rubber pads (25) are fixedly attached to the opposite side walls of the two arc-shaped clamping plates (24).

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