阅读说明：本技术 一种骨科临床用取钉器 (Clinical nail ware of getting of orthopedics ) 是由 侯念宗 于 2021-10-09 设计创作，主要内容包括：本发明公开了一种骨科临床用取钉器,包括移动基板、移动基板底部安装的行走轮与髓内钉连接桥结构,所述移动基板底部的一侧固定安装有净化器,所述净化器的进风口固定安装有真空泵的出风口,且真空泵固定安装在移动基板的顶部,所述真空泵的出风口固定安装有抽气软管,所述移动基板顶部的另一侧分别固定安装有氧气气罐与氢气气罐。该一种骨科临床用取钉器,采用点燃氢气发生爆炸产生的冲击波为动力源,带动敲击块对敲击板进行敲击,模拟人工手动的挥锤对敲击板进行敲击,从手动取钉切换成机械化的驱动,有效的降低了工作轻度,省时省力,也保证了每次锤击的部位均处于同一位置,避免锤击点出现错位,避免取钉器错位。(The invention discloses a clinical screw extractor for orthopedics department, which comprises a movable base plate, and a traveling wheel and intramedullary nail connecting bridge structure arranged at the bottom of the movable base plate, wherein a purifier is fixedly arranged at one side of the bottom of the movable base plate, an air inlet of a vacuum pump is fixedly arranged at the air inlet of the purifier, the vacuum pump is fixedly arranged at the top of the movable base plate, an air exhaust hose is fixedly arranged at the air outlet of the vacuum pump, and an oxygen gas tank and a hydrogen gas tank are respectively and fixedly arranged at the other side of the top of the movable base plate. This clinical usefulness of orthopedics is with getting nail ware adopts to ignite the shock wave that hydrogen takes place to explode and produces as the power supply, drives and strikes the piece and strike the board and strike, and artifical manual hammer of waving of simulation strikes the board and strikes, follows the drive that manual nail of getting switches into mechanization, and the effectual work that has reduced is slight, labour saving and time saving, has also guaranteed that the position of hammering at every turn all is in same position, avoids the hammering point to appear the dislocation, avoids getting nail ware dislocation.)

1. The utility model provides an orthopedics is clinical with getting nail ware, is connected bridge structure (6) including the walking wheel and the intramedullary nail of removing base plate (1), removal base plate (1) bottom installation, its characterized in that: the air purifier is characterized in that a purifier (2) is fixedly mounted on one side of the bottom of the movable base plate (1), an air outlet of a vacuum pump (3) is fixedly mounted at an air inlet of the purifier (2), the vacuum pump (3) is fixedly mounted at the top of the movable base plate (1), an air exhaust hose (4) is fixedly mounted at an air outlet of the vacuum pump (3), an oxygen gas tank (12) and a hydrogen gas tank (13) are respectively fixedly mounted at the other side of the top of the movable base plate (1), a first gas hose (10) is fixedly mounted at an air outlet end of the oxygen gas tank (12), a second gas hose (11) is fixedly connected at an air outlet end of the first gas hose (10), a first electric telescopic rod (5) is arranged at the middle of the top of the movable base plate (1), an L-shaped plate (7) is fixedly connected with an L-shaped plate (7), and a second electric telescopic rod (8) is fixedly mounted on the L-shaped plate (7), and the movable end of the electric telescopic rod II (8) is fixedly connected with a knocking structure (9).

2. The clinical nail extractor for orthopedics of claim 1, wherein: the knocking structure (9) comprises a pressure chamber (25), a first pressure chamber (31), a communicating cavity (34) and a second pressure chamber (36) are respectively arranged in the pressure chamber (25), the first pressure chamber (31) is communicated with the second pressure chamber (36) through the communicating cavity (34), one side of the pressure chamber (25) is respectively provided with a first air inlet pipe (26), an electronic igniter (28), an air suction pipe (29) and a second air inlet pipe (30) in a penetrating manner, electromagnetic valves (27) are respectively and fixedly arranged on the first air inlet pipe (26), the first air suction pipe (29) and the second air inlet pipe (30), the air outlet end of the first air hose (10) is fixedly connected with the air inlet end of the first air inlet pipe (26), the air inlet end of the air suction hose (4) is fixedly connected with the air outlet end of the air suction pipe (29), the air outlet end of the second air hose (11) is fixedly connected with the air inlet end of the second air inlet pipe (30), the inside of first pressure chamber (31) is provided with piston block (32), one side fixed mounting of piston block (32) has piston rod (33), the one end fixedly connected with of piston rod (33) strikes piece (38).

3. The clinical nail extractor for orthopedics of claim 2, wherein: the outer wall that piston rod (33) are located second pressure chamber (36) inside cup joints and installs pocket piece (35), the outer wall of piston rod (33) cup joints and installs reset spring (37), and reset spring (37) are located the inside of second pressure chamber (36) and are located between one side of pocket piece (35) and second pressure chamber (36) inner wall one side.

4. The clinical nail extractor for orthopedics of claim 2, wherein: the outer wall of pressure chamber (25) is equidistance fixed mounting and has a plurality of buffer structure (24), the explosion-proof shell of fixed end face fixedly connected with (23) of buffer structure (24).

5. The clinical screw extractor for orthopedics of claim 4, wherein: explosion-proof shell (23) is including installation piece (39), the bottom welded connection of installation piece (39) has surge bin (45), slide sliding connection that surge bin (45) were seted up through its bottom has bumping post (44), the bottom fixedly connected with pressure chamber connecting block (43) of bumping post (44), and the arc wall that the bottom of pressure chamber connecting block (43) was seted up, buffer spring (42) are installed in the outer wall regulation of bumping post (44), and buffer spring (42) are located between the bottom of surge bin (45) and the top of pressure chamber connecting block (43).

6. The clinical screw extractor for orthopedics of claim 5, wherein: the top fixed mounting of cushion column (44) has cylinder connecting plate (41), fixed mounting has elastic column (40) between the top of surge bin (45) inner wall and the top of cylinder connecting plate (41).

7. The clinical nail extractor for orthopedics of claim 1, wherein: the utility model discloses a portable electronic device, including removal base plate (1), rotation axis (21), fixedly connected with rotor plate (20) between the drive end of driving motor (22) and the one end of rotation axis (21), and electric telescopic handle (5) fixed mounting is at the top of rotor plate (20).

8. The clinical nail extractor for orthopedics of claim 1, wherein: intramedullary nail connecting bridge structure (6) includes weld holder (15), one side welded mounting at weld holder (15) top has strikes board (14), the opposite side welded mounting at weld holder (15) top has transmission piece (17), threaded hole threaded connection that transmission piece (17) seted up through it has threaded rod (16), and the one end fixed mounting of threaded rod (16) has swivelling joint head, the other end fixed mounting of threaded rod (16) has connecting rod (18), the one end fixed mounting of connecting rod (18) has threaded rod two (19).

Technical Field

The invention relates to the field of orthopedics, in particular to a nail extractor for orthopedics clinical use.

Background

Intramedullary nails belong to orthopedic internal fixation instruments in medical instruments. The structure is provided with an intramedullary nail rod, a near-end locking screw hole is arranged at the near end of the intramedullary nail rod, and a pressure reduction plane is arranged on the surface of the intramedullary nail rod. More than one strip-shaped decompression plane is arranged on the surface of the intramedullary nail rod, and the decompression plane can extend from the proximal end of the intramedullary nail rod to the distal end of the intramedullary nail rod. The proximal end of the intramedullary nail rod is provided with a locking screw rod positioning screw hole and a connecting sleeve positioning groove.

Partial fracture carries out the operation and restores the formula, need adopt the intramedullary nail to assist the restoration, and need demolish the intramedullary nail when waiting recovered, and current when demolising the intramedullary nail, often adopt the manual work to wave the board that hammer and intramedullary nail are connected, thereby realize demolising the intramedullary nail, the manual work is waved the efficiency and is very low, and working strength is high, very tired, also can't guarantee that the point of every time hammering all is in same position, consequently specially propose one kind to an orthopedics clinical usefulness that is used for the intramedullary nail extractor.

Disclosure of Invention

The invention aims to provide a nail extractor for orthopedic clinical use, which aims to solve the problems in the background technology.

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

a clinical nail extractor for orthopedics comprises a movable base plate, a walking wheel and intramedullary nail connecting bridge structure arranged at the bottom of the movable base plate, a purifier is fixedly arranged on one side of the bottom of the movable substrate, an air inlet of the purifier is fixedly provided with an air outlet of the vacuum pump, the vacuum pump is fixedly arranged at the top of the movable base plate, the air outlet of the vacuum pump is fixedly provided with an air exhaust hose, an oxygen tank and a hydrogen tank are respectively and fixedly arranged on the other side of the top of the movable substrate, a first gas hose is fixedly arranged at the gas outlet end of the oxygen tank, the air outlet end of the first air hose is fixedly connected with a second air hose, the middle part of the top of the movable base plate is provided with a first electric telescopic rod, the movable end of the first electric telescopic rod is fixedly connected with an L-shaped plate, a second electric telescopic rod is fixedly mounted on the L-shaped plate, and a knocking structure is fixedly connected with the movable end of the second electric telescopic rod.

As a further scheme of the invention: the knocking structure comprises a pressure chamber, a first pressure chamber, a communicating cavity and a second pressure chamber are arranged inside the pressure chamber respectively, the first pressure chamber and the second pressure chamber are communicated through the communicating cavity, one side of the pressure chamber is respectively and alternately provided with a first air inlet pipe, an electronic igniter, an exhaust pipe and a second air inlet pipe, the first air inlet pipe, the exhaust pipe and the second air inlet pipe are respectively and fixedly provided with electromagnetic valves, the air outlet end of the first air hose is fixedly connected with the air inlet end of the first air inlet pipe, the air inlet end of the air hose is fixedly connected with the air outlet end of the exhaust pipe, the air outlet end of the second air hose is fixedly connected with the air inlet end of the second air inlet pipe, a piston block is arranged inside the first pressure chamber, a piston rod is fixedly arranged on one side of the piston block, and a knocking block is fixedly connected with one end of the piston rod.

As a still further scheme of the invention: the outer wall of the piston rod, which is located inside the second pressure chamber, is sleeved with the sleeve block, the outer wall of the piston rod is sleeved with the reset spring, and the reset spring is located inside the second pressure chamber and located between one side of the sleeve block and one side of the inner wall of the second pressure chamber.

As a still further scheme of the invention: the outer wall of pressure chamber is equidistance fixed mounting and has a plurality of buffer structure, buffer structure's fixed end face fixedly connected with explosion-proof shell.

As a still further scheme of the invention: the explosion-proof shell comprises an installation block, the bottom of the installation block is connected with a buffer bin in a welding mode, the buffer bin is connected with a buffer column through a slide sliding way arranged at the bottom of the buffer bin, the bottom of the buffer column is fixedly connected with a pressure bin connecting block, an arc-shaped groove is formed in the bottom of the pressure bin connecting block, a buffer spring is installed on the outer wall of the buffer column in an adjusting mode, and the buffer spring is located between the bottom of the buffer bin and the top of the pressure bin connecting block.

As a still further scheme of the invention: the top fixed mounting of cushion column has the cylinder connecting plate, fixed mounting has the elasticity post between the top of surge bin inner wall and the top of cylinder connecting plate.

As a still further scheme of the invention: the utility model discloses a portable electronic device, including removal base plate, rotation axis, driving motor, electric telescopic handle, rotation axis, driving motor's drive end, the rear fixed mounting at removal base plate top middle part has driving motor, the place ahead rotation at removal base plate top middle part installs the rotation axis, fixedly connected with rotor plate between the drive end of driving motor and the one end of rotation axis, and an electric telescopic handle fixed mounting is at the top of rotor plate.

As a still further scheme of the invention: the intramedullary nail connecting bridge structure comprises a welding frame, a knocking plate is welded and installed on one side of the top of the welding frame, a transmission block is welded and installed on the other side of the top of the welding frame, the transmission block is connected with a first threaded rod through a first threaded hole in a threaded connection mode, a first rotating connector is fixedly installed at one end of the first threaded rod, a first connecting rod is fixedly installed at the other end of the first threaded rod, and a second threaded rod is fixedly installed at one end of the connecting rod.

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

1. the invention leads the leg of a patient to be in an inclined state, leads a threaded hole at the near end of an intramedullary nail to be exposed, rotates a threaded rod I to lead a threaded rod II to move downwards under the action of the threaded transmission of the threaded rod I and a transmission block, leads the threaded rod II to be fixedly connected with the threaded hole at the near end of the intramedullary nail, then leads a welding frame to be in an inclined state, leads the rotation of a driving motor to drive a rotating plate to rotate, leads an electric telescopic rod I and a knocking structure to rotate at the same time, leads the inclination angle of the knocking structure and the welding frame to be in a consistent state, then leads the electric telescopic rod II to extend to lead the knocking structure to move towards the direction of an intramedullary nail connecting bridge structure, leads the movable end of the knocking structure to be positioned at the middle part of one side of the knocking plate, can correspondingly adjust the knocking structure according to different heights, positions and inclination angles of the intramedullary nail connecting bridge structure, leads the knocking structure to be kept in an optimal placing state, the stability of the subsequent knocking structure in knocking the knocking plate is ensured.

2. The invention, the vacuum pump produces the negative pressure to suck the inside of the first pressure chamber, the gas sucked out enters the inside of the clarifier from the exhaust tube, the exhaust hose and is purified and then discharged, make the inside of the first pressure chamber in the vacuum state, this kind of operation can also take out the gas after the guarantee of the inside of the first pressure chamber, then oxygen and hydrogen in the oxygen gas tank and the hydrogen gas tank enter the inside of the first pressure chamber, after the density of the inside gas reaches the preset state, the electronic igniter ignites, will cause the hydrogen to explode at this moment, will produce the shock wave after the hydrogen explosion, the shock wave promotes the piston block to move fast to the direction of the knocking block, make the knocking block knock the knocking plate, make the welding frame move to the direction of the knocking plate and bring out the intramedullary nail, then repeat the above-mentioned operation, until the intramedullary nail is taken out, use the shock wave that the hydrogen is ignited to explode and produced as the power source, the drive strikes the piece and strikes the board, and the artifical manual hammer of waving of simulation strikes the board, follows the manual nail of getting and switches into mechanized drive, and the effectual work that has reduced is slight, and labour saving and time saving has also guaranteed that the position of hammering at every turn all is in same position, avoids the hammering point to appear the dislocation, avoids getting the dislocation of nail ware.

3. According to the invention, the explosion-proof shell is sleeved outside the pressure bin to protect the pressure bin, and the shock sense generated by explosion is buffered and absorbed by the elastic action of the buffer spring and the elastic column, so that the nail extractor is prevented from generating larger vibration, the service life of the nail extractor is prolonged, and the use stability of the device is also improved.

Drawings

FIG. 1 is a schematic structural view of a nail extractor for orthopedic clinical use;

FIG. 2 is a schematic view of a connection structure of a connecting bridge structure of an intramedullary nail in the clinical nail extractor of orthopedics;

FIG. 3 is an enlarged schematic view of the nail extractor shown in FIG. 1;

FIG. 4 is a sectional view of an explosion-proof case of the clinical nail extractor in orthopedics;

FIG. 5 is a front view of a pressure chamber of the orthopedic clinical nail extractor;

FIG. 6 is a sectional view of a pressure chamber of the orthopedic clinical nail extractor;

fig. 7 is a sectional view of a surge bin in the orthopedic clinical nail extractor.

In the figure: the device comprises a movable base plate 1, a purifier 2, a vacuum pump 3, an air suction hose 4, a first electric telescopic rod 5, an intramedullary nail connecting bridge structure 6, an L-shaped plate 7, a second electric telescopic rod 8, a knocking structure 9, a first gas hose 10, a second gas hose 11, an oxygen gas tank 12, a hydrogen gas tank 13, a knocking plate 14, a welding frame 15, a first threaded rod 16, a transmission block 17, a connecting rod 18, a second threaded rod 19, a rotating plate 20, a rotating shaft 21, a driving motor 22, an explosion-proof shell 23, a buffer structure 24, a pressure chamber 25, a first air inlet pipe 26, an electromagnetic valve 27, an electronic igniter 28, an air suction pipe 29, a second air inlet pipe 30, a first pressure chamber 31, a piston block 32, a piston rod 33, a communication cavity 34, a sleeve block 35, a second pressure chamber 36, a reset spring 37, a knocking block 38, a mounting block 39, an elastic column 40, a column body connecting plate 41, a buffer spring 42, a pressure chamber connecting block 43, a buffer column 44, A surge bin 45.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the invention provides a technical scheme, which includes a movable substrate 1, a traveling wheel and intramedullary nail connecting bridge structure 6 installed at the bottom of the movable substrate 1, a purifier 2 fixedly installed at one side of the bottom of the movable substrate 1, an air inlet of the purifier 2 fixedly installed with an air outlet of a vacuum pump 3, the vacuum pump 3 fixedly installed at the top of the movable substrate 1, an air exhaust hose 4 fixedly installed at the air outlet of the vacuum pump 3, an oxygen tank 12 and a hydrogen tank 13 fixedly installed at the other side of the top of the movable substrate 1, an air outlet end of the oxygen tank 12 fixedly installed with an air hose one 10, an air outlet end of the air hose one 10 fixedly connected with an air hose two 11, an electric telescopic rod one 5 installed at the middle of the top of the movable substrate 1, and an L-shaped plate 7 fixedly connected with a movable end of the electric telescopic rod one 5, and a second electric telescopic rod 8 is fixedly installed on the L-shaped plate 7, and a knocking structure 9 is fixedly connected with the movable end of the second electric telescopic rod 8.

The knocking structure 9 comprises a pressure chamber 25, a first pressure chamber 31, a communicating cavity 34 and a second pressure chamber 36 are respectively arranged in the pressure chamber 25, the first pressure chamber 31 is communicated with the second pressure chamber 36 through a communicating cavity 34, one side of the pressure bin 25 is respectively and penetratingly provided with a first air inlet pipe 26, an electronic igniter 28, an air exhaust pipe 29 and a second air inlet pipe 30, the first air inlet pipe 26, the air exhaust pipe 29 and the second air inlet pipe 30 are respectively and fixedly provided with an electromagnetic valve 27, an air outlet end of a first air hose 10 is fixedly connected with an air inlet end of the first air inlet pipe 26, an air inlet end of an air exhaust hose 4 is fixedly connected with an air outlet end of the air exhaust pipe 29, an air outlet end of a second air hose 11 is fixedly connected with an air inlet end of the second air inlet pipe 30, a piston block 32 is arranged inside the first pressure chamber 31, a piston rod 33 is fixedly arranged on one side of the piston block 32, and a knocking block 38 is fixedly connected with one end of the piston rod 33.

The outer wall of the piston rod 33 inside the second pressure chamber 36 is sleeved with a sleeve block 35, the outer wall of the piston rod 33 is sleeved with a return spring 37, and the return spring 37 is located inside the second pressure chamber 36 and between one side of the sleeve block 35 and one side of the inner wall of the second pressure chamber 36.

The outer wall of the pressure chamber 25 is fixedly provided with a plurality of buffer structures 24 at equal intervals, and the fixed end surface of each buffer structure 24 is fixedly connected with an explosion-proof shell 23.

Explosion-proof shell 23 includes installation piece 39, and the bottom welded connection of installation piece 39 has surge bin 45, and the slide sliding connection that surge bin 45 was seted up through its bottom has buffer column 44, and buffer column 44's bottom fixedly connected with pressure chamber connecting block 43, and the arc wall that the bottom of pressure chamber connecting block 43 was seted up, and buffer spring 42 is installed in the outer wall regulation of buffer column 44, and buffer spring 42 is located between the bottom of surge bin 45 and the top of pressure chamber connecting block 43.

The top of the buffer column 44 is fixedly provided with a column connecting plate 41, and an elastic column 40 is fixedly arranged between the top of the inner wall of the buffer bin 45 and the top of the column connecting plate 41.

A driving motor 22 is fixedly installed at the rear of the middle of the top of the movable base plate 1, a rotating shaft 21 is rotatably installed in front of the middle of the top of the movable base plate 1, a rotating plate 20 is fixedly connected between the driving end of the driving motor 22 and one end of the rotating shaft 21, and a first electric telescopic rod 5 is fixedly installed at the top of the rotating plate 20.

The intramedullary nail connecting bridge structure 6 comprises a welding frame 15, a knocking plate 14 is welded and installed on one side of the top of the welding frame 15, a transmission block 17 is welded and installed on the other side of the top of the welding frame 15, the transmission block 17 is connected with a first threaded rod 16 through a threaded hole formed in the transmission block 17, a rotary connector is fixedly installed at one end of the first threaded rod 16, a connecting rod 18 is fixedly installed at the other end of the first threaded rod 16, and a second threaded rod 19 is fixedly installed at one end of the connecting rod 18.

The working principle of the invention is as follows:

when in use, the leg of a patient is in an inclined state, the threaded hole at the proximal end of the intramedullary nail is exposed, the first threaded rod 16 is rotated under the threaded transmission action of the first threaded rod 16 and the transmission block 17, the second threaded rod 19 is moved downwards, the second threaded rod 19 is fixedly connected with the threaded hole at the proximal end of the intramedullary nail, then the welding frame 15 is in an inclined state, the rotation of the driving motor 22 can drive the rotating plate 20 to rotate, at the moment, the first electric telescopic rod 5 and the knocking structure 9 are both rotated, the inclination angles of the knocking structure 9 and the welding frame 15 are in a consistent state, then the second electric telescopic rod 8 is extended to enable the knocking structure 9 to move towards the intramedullary nail connecting bridge structure 6, the movable end of the knocking structure 9 is positioned in the middle of one side of the knocking plate 14, and the knocking structure 9 can be correspondingly adjusted according to different heights, positions and inclination angles of the intramedullary nail connecting bridge structure 6, the optimal placing state of the knocking structure is kept, and the stability of knocking the knocking plate 14 by the subsequent knocking structure 9 is ensured;

the vacuum pump 3 generates negative pressure to suck air into the first pressure chamber 31, the sucked air enters the purifier 2 from the air suction pipe 29 and the air suction hose 4 and is then exhausted, so that the inside of the first pressure chamber 31 is in a vacuum state, the operation can also be used for sucking the guaranteed air inside the first pressure chamber 31, then the oxygen and the hydrogen inside the oxygen gas tank 12 and the hydrogen gas tank 13 enter the inside of the first pressure chamber 31, when the density of the internal air reaches a preset state, the electronic igniter 28 ignites, at this time, the hydrogen gas explodes, shock waves are generated after the hydrogen explosion, the shock waves push the piston block 32 to rapidly move towards the direction of the knocking block 38, the knocking block 38 knocks the knocking plate 14, the welding frame 15 moves towards the knocking plate 14 and carries out the intramedullary nail, and then the operation is repeated until the intramedullary nail is taken out, the knocking plate 14 is driven to knock by the knocking block 38 by adopting shock waves generated by igniting hydrogen to explode as a power source, a manual hammer is simulated to knock the knocking plate 14, and the manual nail taking is switched into mechanical driving, so that the working lightness is effectively reduced, the time and the labor are saved, the parts hammered each time are all in the same position, the dislocation of the hammering points is avoided, and the dislocation of the nail taking device is avoided;

the explosion-proof shell 23 is sleeved outside the pressure bin 25 to protect the pressure bin, the shock generated by explosion is buffered and absorbed by the elastic action of the buffer spring 42 and the elastic column 40, the nail extractor is prevented from generating larger vibration, the service life of the nail extractor is prolonged, and the use stability of the device is also improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.