CN210204847U

CN210204847U - Hand-held electric bone grafting bed preparation tool

Info

Publication number: CN210204847U
Application number: CN201821745637.3U
Authority: CN
Inventors: Wei Zou; 邹伟; Xueke Zhao; 赵雪珂
Original assignee: Fourth Peoples Hospital of Guiyang
Current assignee: Fourth Peoples Hospital of Guiyang
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2020-03-31
Anticipated expiration: 2028-10-26

Abstract

The utility model provides an electronic bone grafting bed of hand-held type preparation instrument, be in including shell and setting epaxial axis in the shell axis, be provided with between shell and the axis and be used for driving the axis and be linear reciprocating motion's linear electric motor along shell axis direction, shell one end is provided with the outlet, the shell other end is connected with the direction head, the axis is passed through the connector and is connected with the one end of bone chisel pole in the one end that is close to the direction head, the other end of bone chisel pole passes the direction head and stretches out the shell, the bone chisel pole is served and is provided with the bone chisel head at the one of stretching out the shell. The utility model discloses simple structure, it is easy and simple to handle, accurate reliable, set up linear electric motor direct drive bone chisel head and be linear motion, conversion mechanism in the middle of not needing, through linear electric motor control bone chisel head preparation bone grafting bed, labour saving and time saving easily medical worker's operation.

Description

Hand-held electric bone grafting bed preparation tool

Technical Field

The utility model belongs to the technical field of medical instrument makes, concretely relates to electronic bone grafting bed of hand-held type preparation instrument.

Background

Various advanced internal fixation technologies of modern orthopedics department all aim at postoperative bony healing and fusion, and especially, the spinal surgery field needs segmental fusion to achieve the stability of spinal internal fixation after surgery and promote rehabilitation. The permanent stability of the spinal segment depends on the bone fusion after operation besides the strong internal fixation, and a good bone grafting bed and sufficient bone grafting amount are the foundation for the success of bone grafting fusion. However, in actual operation, the posterior arch, vertebral plate and transverse process bone grafting bed has low preparation efficiency and low quality, and a certain bone mass is lost, so that the fusion rate is reduced, the permanent stability between vertebral segments cannot be formed, and the long-term operation fixation fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides an electronic bone grafting bed of hand-held type preparation instrument, the device simple structure, and convenient to use realizes preparing the bone grafting bed through setting up linear electric motor, and control is accurate reliable, labour saving and time saving, and work efficiency is high, maintains portably, easily adjusts and control, excellent in use effect, can use widely.

In order to solve the technical problem, the utility model discloses a technical scheme is: the bone chisel device is characterized by comprising a shell and a middle shaft arranged on the middle shaft in the shell central axis, wherein a linear motor used for driving the middle shaft to do linear reciprocating motion along the shell central axis is arranged between the shell and the middle shaft, one end of the shell is provided with a wire outlet used for connecting a power line of the linear motor with an external power supply, the other end of the shell is connected with a guiding head, one end of the middle shaft close to the guiding head is connected with one end of a bone chisel rod through a connector, the other end of the bone chisel rod penetrates through the guiding head to extend out of the shell, and one end of the bone chisel rod extending out of the shell.

Preferably, the linear motor comprises a tubular motor stator fixedly mounted on the inner wall of the housing and a tubular motor rotor fixedly mounted on the middle shaft, and the motor stator and the motor rotor correspond to each other in position.

Preferably, the head of the bone chisel head is round and flat.

Preferably, a rubber anti-slip sleeve is arranged on the outer surface of the shell.

Preferably, a control switch for controlling the linear motor is provided on the housing.

Preferably, the connector is in threaded connection with the bone chisel rod, a threaded hole is formed in the connecting position of the connector and the bone chisel rod, an external thread matched with the threaded hole is formed in the connecting position of the bone chisel rod and the connector, and the bone chisel rod is detached and replaced.

Preferably, the bone chisel rod and the bone chisel head are integrally formed.

Preferably, one end of the guide head is fixedly inserted into the end part of the shell, the other end of the guide head is conical, and the guide head is provided with a through hole for the bone chisel rod to pass through along the central axis of the shell.

Preferably, the bone chisel bar and the bone chisel head are provided with a plurality of specification models, and each specification model of the bone chisel bar and the bone chisel head is provided with a plurality of specifications, so that different bone chisel heads can be replaced according to the actual operation requirement.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses a set up between shell and axis and be used for driving the axis and be linear reciprocating motion's linear electric motor along shell axis direction, set up linear electric motor direct drive bone chisel head and be linear motion, do not need middle shifter, prepare the bone grafting bed through linear electric motor control bone chisel head, labour saving and time saving easily medical worker's operation, the degree of stretching into of every site of the bone grafting bed of preparation moreover is the same, it is very favourable to the later stage recovery of patient. Meanwhile, different force and frequency can be obtained by adjusting the voltage or the frequency of the linear motor, and the application range is wide.

2. The utility model discloses the head design of bone chisel head is the flat tip of circle, can be with bone cortex surface treatment for the fish scale form, utilizes bone grafting material and bone fusion growth, excellent in use effect, and the bone chisel head is removable, is applicable to multiple demand.

3. The utility model discloses simple structure, convenient to use, work efficiency is high, and control is accurate reliable, maintains portably, easily adjusts and control, and application scope is wide.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure diagram of the motor stator, the motor rotor and the middle shaft of the present invention.

Fig. 3 is a schematic structural view of the bone chisel rod and the bone chisel head of the present invention.

Description of reference numerals:

1-bone chisel head; 2-a bone chisel rod; 3-a guide head;

4, a shell; 5, a rubber anti-slip sleeve; 6, a motor stator;

7, a motor rotor; 8-middle axis; 4, connecting heads;

10-outlet port; and 11, controlling a switch.

Detailed Description

As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a cylindric shell 4 is in with the setting epaxial axis 8 in shell 4 axis, be provided with between shell 4 and the axis 8 and be used for driving axis 8 and be linear reciprocating motion's linear electric motor along shell 4 axis direction, 4 one ends of shell are provided with outlet 10 for linear electric motor power cord external power source plugs into, the shell 4 other end is provided with direction head 3, axis 8 is passed through connector 9 and is connected with the one end of bone chisel pole 2 in the one end that is close to direction head 3, the other end of bone chisel pole 2 passes direction head 3 and stretches out shell 4, bone chisel pole 2 is being served and is provided with bone chisel head 1 in one of stretching out shell 4.

In this embodiment, the linear motor includes a tubular motor stator 6 fixedly mounted on the inner wall of the housing 4 and a tubular motor rotor 7 fixedly mounted on the central shaft 8, and the motor stator 6 corresponds to the motor rotor 7 in position.

In the present embodiment, the first and second electrodes are,

in this embodiment, the head of the bone chisel head 1 is round and flat, which is beneficial to preparing the bone grafting bed through the bone chisel head 1 and is not easy to damage.

In this embodiment, the outer wall of the housing 4 is provided with the rubber anti-slip sleeve 5, so that the medical worker can conveniently hold the medical worker for a long time without generating slipping danger.

In this embodiment, the housing 4 is provided with the control switch 11 for controlling the linear motor, and the control switch 11 is arranged on the outer wall of the housing, so that the control is convenient to hold by hand.

In this embodiment, connector 9 passes through threaded connection with osteotome pole 2, connector 9 and osteotome pole 2 hookup location set up threaded hole, osteotome pole 2 with connector 9 hookup location set up with screw hole matched with external screw thread realizes convenient dismantlement and the change of osteotome pole 2.

In this embodiment, one end of the guide head 3 is fixedly inserted into the end of the housing 4, the other end of the guide head 3 is conical, and the guide head 3 is provided with a through hole along the central axis of the housing 4 for the osteotome rod 2 to pass through.

In this embodiment, the bone chisel bar 2 and the bone chisel head 1 are provided with a plurality of specifications and types, and a plurality of bone chisel bars 2 and bone chisel heads 1 are provided for each specification and type, so that different bone chisel heads can be replaced according to actual operation requirements.

The utility model discloses during the use, at first with the motor control line through outlet 10, the external power source of plugging into, press control switch 11, motor active cell 7 drives axis 8 and bone chisel pole 2 and is reciprocating linear motion along the 6 axle centers of motor stator, frequency of motion and motion amplitude receive power control, bone chisel head 1 forms the impact force under this kind of repetitive motion, then handheld shell 4, bone chisel head 1 aims at pending bone bed surface sclerotin, maintain, the chisel, make bone surface form the perk of ichthyoid cortex lycii radicis, the chisel is carved repeatedly, it has punctiform bleeding bone grafting bed to form. Meanwhile, the bone chisel rod 2 and the bone chisel head 1 with different specifications can be replaced according to the requirements of different patients or the requirements of different operations.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modifications, changes and equivalent changes made to the above embodiments according to the technical spirit of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides an electronic bone grafting bed preparation instrument of hand-held type, its characterized in that includes cylindric shell (4) and sets up epaxial axis (8) in shell (4) axis, be provided with between shell (4) and axis (8) and be used for driving axis (8) and be linear reciprocating motion's linear electric motor along shell (4) axis direction, shell (4) one end is provided with outlet (10), the shell (4) other end is provided with direction head (3), axis (8) are passed through connector (9) and are connected with the one end of bone chisel pole (2) in the one end that is close to direction head (3), the other end of bone chisel pole (2) passes direction head (3) and stretches out shell (4), bone chisel pole (2) are provided with chisel head (1) on the one end that stretches out shell (4).

2. The tool for preparing a handheld electric bone grafting bed according to claim 1, wherein the linear motor comprises a tubular motor stator (6) fixedly installed on the inner wall of the housing (4) and a tubular motor mover (7) fixedly installed on the central shaft (8), and the motor stator (6) and the motor mover (7) are corresponding in position.

3. A hand-held electric bone graft preparation tool according to claim 1 or 2, characterised in that the head of the bone chisel head (1) is round and flat.

4. A hand-held electric bone graft bed preparation tool according to claim 1 or 2, wherein a rubber anti-slip sleeve (5) is arranged on the outer wall of the housing (4).

5. A hand-held electric bone graft bed preparation tool according to claim 1, wherein a control switch (11) for controlling the linear motor switch is provided on the housing (4).

6. A hand-held electric bone graft preparation tool as claimed in claim 1 or 2, wherein the connector (9) is threadedly connected to the osteotome rod (2).

7. The hand-held electric bone grafting bed preparation tool according to claim 1 or 2, characterized in that one end of the guide head (3) is fixedly inserted into the end of the housing (4), the other end of the guide head (3) is conical, and the guide head (3) is provided with a through hole along the central axis of the housing (4) for the chisel rod (2) to pass through.