CN210249979U

CN210249979U - Electric osteotome

Info

Publication number: CN210249979U
Application number: CN201920829179.XU
Authority: CN
Inventors: 柳长风
Original assignee: Guizhou Zirui Technology Co ltd
Current assignee: Guizhou Zirui Technology Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-04-07
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses an electronic osteotome, including osteotome device and transmission, the osteotome device is including chisel head (1), bracing piece (2) and outer tube (3), transmission includes input eccentric shaft (31), the interface body (32), reciprocal frame mount pad (34) and actuating lever, the one end of input eccentric shaft (31) is cup jointed and is fixed in the interface body (32), the other end and reciprocal frame swing joint, and the corresponding position and the actuating lever of this reciprocal frame one end are connected, the actuating lever stretches into in outer tube (3) to be connected fixedly with connecting rod (4). The utility model discloses drive eccentric input shaft by drive arrangement and rotate, change into through transmission and drive bracing piece and chisel head reciprocating motion in front and back side, carry out the operation that bone tissue handled from this, simple structure, the simple operation has simplified mounting structure, has alleviateed weight, has reduced the space that occupies, and stability is high, and the security is good.

Description

Electric osteotome

Technical Field

The utility model relates to the technical field of medical equipment, in particular to electronic osteotome.

Background

Bone tissue is often handled or is used the osteotome in orthopedics and spinal surgery, and present manual osteotome is used, because the structural adoption integral type solid core consequently often need control the dynamics of beating when using, often because control does not cause patient's discomfort well, along with dental operation's development, dentist is higher to the operation precision in addition, and such structure also no longer satisfies the chisel of high accuracy, and there is unsafe factor in the difficult control of strength moreover.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an electronic osteotome that operates steadily, simple operation.

The technical scheme of the utility model as follows:

an electric osteotome comprises an osteotome device and a transmission device, wherein the osteotome device comprises a chisel head, a support rod and an outer tube, the chisel head is axially provided with a section of arc-shaped plate which horizontally extends out, the end face of the extending end of the arc-shaped plate is provided with a cutting edge, the outer tube is sleeved on the support rod, and the support rod is connected with a connecting rod; the transmission device comprises an input eccentric shaft, an interface body, a reciprocating frame mounting seat and a driving rod, wherein one end of the input eccentric shaft is fixedly sleeved in the interface body, the other end of the input eccentric shaft is movably connected with the reciprocating frame, the reciprocating frame is hinged in the reciprocating frame mounting seat, the reciprocating frame mounting seat is sleeved on the outer wall of the outer tube, the corresponding position of one end of the reciprocating frame is connected with the driving rod, and the driving rod extends into the outer tube and is fixedly connected with the connecting rod; under the drive of the driving device, the output end of the input eccentric shaft rotates in the reciprocating frame and is transmitted to the reciprocating frame, and the connected driving rod drives the supporting rod and the chisel head to do reciprocating movement along the axial direction.

By adopting the structure, the support rod of the chisel head is arranged in the outer tube in a penetrating way, the connection between the chisel head and the drive rod in the transmission device is not influenced by the outside, and meanwhile, the reciprocating frame mounting seat is sleeved on the outer wall of the outer tube and is convenient to hold; under drive arrangement's drive, the output of input eccentric shaft is at reciprocal frame internal rotation and transmission for reciprocal frame, drive reciprocal frame at vertical direction reciprocating motion, and give the connecting rod by the actuating lever that reciprocal frame corresponds the position connection along the axial transmission, finally drive bracing piece and chisel head and make reciprocating motion along the axial, such reciprocating motion, when vertical form or slant holding the osteotome, the backbone centrum or the articular process position that the chisel head was handled, because of the bone tissue atress is even, the chisel mouth surface of a wound is neat stable, can improve bone tissue grinding or prosthetic treatment effect, the wound resumes sooner, control chisel mouth degree of depth and width that also can be fine, and convenient for operation, simple to operate.

In order to facilitate installation and fixation of the input eccentric shaft, preferably, the interface body is provided with a step through hole, a first bearing is embedded in the step through hole, the input end of the input eccentric shaft penetrates through the first bearing, the output end of the input eccentric shaft is provided with a baffle ring, one end of the baffle ring is provided with the eccentric shaft which horizontally extends outwards, and the other end of the baffle ring is abutted and positioned with the outer side of the corresponding end of the first bearing.

In order to facilitate the simplification of the structure and the operation, the reciprocating frame preferably comprises a connecting block, a groove cavity with a U-shaped section is arranged in the connecting block, a horizontally extending supporting rod is arranged at the non-opening end of the connecting block, a first connecting hole is formed in the extending end of the supporting rod, a cavity structure is arranged in the reciprocating frame mounting seat, a first fixing pin penetrates through one side of the reciprocating frame mounting seat, and the penetrating end of the first fixing pin extends into the first connecting hole; one side of first connecting hole outer wall is equipped with the vertical extension section that stretches out, and the symmetry is equipped with two second connecting holes on the extension end terminal surface of this extension section the position department that corresponds the second connecting hole on the actuating lever is equipped with the connecting hole, in one end wear to be equipped with the second fixed pin in the second connecting hole, place the connecting hole one end of actuating lever between two second connecting holes, connecting hole and two second connecting holes form horizontally connect the via hole, the second fixed pin rotates to wear to establish and fixes in this connect the via hole.

In order to facilitate installation and avoid moving interference, preferably, the U-shaped groove cavity on the connecting block comprises an upper groove wall and a lower groove wall, two inclined surface sections with high outer parts and low inner parts are symmetrically arranged at the two groove walls, an arc section is arranged at the lower end of each inclined surface section and corresponds to the included angle of the groove cavity, and a transition arc section communicated with the U-shaped opening is arranged at the high end of each inclined surface section; a second bearing is vertically arranged in a U-shaped groove cavity of the connecting block, and a through hole in the middle of the second bearing is sleeved and fixed on the eccentric shaft.

In order to better prevent the movement interference of the crankshaft on the eccentric shaft, the inclination of the inclined plane section is preferably 5-20 degrees.

In order to prevent the reciprocating frame from moving and interfering, preferably, a strip-shaped groove is arranged on one side of the reciprocating frame installation seat, and step yielding holes are formed in the inner wall of the reciprocating frame installation seat and correspond to the positions of the reciprocating frame.

In order to facilitate holding by hands, preferably, an anti-slip sleeve is sleeved on the outer side of the reciprocating frame mounting seat.

In order to ensure the stability of the transmission direction, the driving rod preferably comprises a guide section and a connecting section which are integrally turned, the guide section extends into the outer tube, and the connecting section is fixedly connected with the connecting rod.

In order to avoid the moving interference of the driving rod, preferably, the diameter of the guide section is larger than that of the connecting section, and the radius of the outer end of the guide section is smaller than that of the inner side of the outer tube by 0.2-1 mm.

In order to buffer the shaking in the transmission process and ensure the stability of the transmission direction, the connecting rod is preferably made of TPE material.

Has the advantages that: the utility model discloses drive eccentric input shaft by drive arrangement and rotate, change into through transmission and drive bracing piece and chisel head reciprocating motion in front and back side, carry out the operation that bone tissue handled from this, simple structure, the simple operation has simplified mounting structure, has alleviateed weight, has reduced the space that occupies, and stability is high, and the security is good.

Drawings

Fig. 1 is an exploded view of the mounting structure of the present invention.

FIG. 2 is a schematic view of a reciprocating frame

Fig. 3 is a view from direction a in fig. 2.

Fig. 4 is a schematic structural view of the drive rod.

Fig. 5 is a schematic structural view of the input eccentric shaft.

Fig. 6 is a schematic structural view of the reciprocating frame mount.

Fig. 7 is a working state diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Shown by figure 1, figure 2, figure 3, figure 4, figure 5, figure 6 and figure 7, the utility model discloses constitute by osteotome device and transmission etc, the osteotome device includes chisel head 1, bracing piece 2 and outer tube 3, chisel head 1 is equipped with the arc that one section level stretches out along the axial, and the end face that stretches out of this arc is equipped with the blade, the outer tube 3 cover is established on bracing piece 2, and this bracing piece 2 is connected with connecting rod 4, connecting rod 4 is made by the TPE material.

The transmission device comprises an input eccentric shaft 31, an interface body 32, a reciprocating frame mounting seat 34 and a driving rod, wherein a step through hole is formed in the interface body 32, a first bearing 51 is embedded in the step through hole, the input end of the input eccentric shaft 31 penetrates through the first bearing 51, a baffle ring 311 is arranged at the output end of the input eccentric shaft 31, an eccentric shaft 312 extending horizontally outwards is arranged at one end of the baffle ring 311, and the other end of the baffle ring is abutted and positioned with the outer side of the end corresponding to the first bearing 51.

The reciprocating frame comprises a connecting block 331, a groove cavity with a U-shaped section is arranged in the connecting block 331, a horizontally extending support rod 332 is arranged at the non-opening end of the connecting block 331, a first connecting hole 333 is arranged at the extending end of the support rod 332, a cavity structure is arranged in the reciprocating frame mounting seat 34, a first fixing pin 336 penetrates through one side of the reciprocating frame mounting seat 34, and the penetrating end of the first fixing pin 336 extends into the first connecting hole 333; one side of first connecting hole 333 outer wall is equipped with the extension section 334 that vertically stretches out, and the symmetry is equipped with two second connecting holes 335 on the extension end terminal surface of this extension section 334 the position department that corresponds second connecting hole 335 on the actuating lever is equipped with the connecting hole, at one end wear to be equipped with second fixed pin 337 in the second connecting hole 335, place the connecting hole one end of actuating lever between two second connecting holes 335, connecting hole and two second connecting holes 335 form horizontally connect the through-hole, second fixed pin 337 rotates to wear to establish and fix in this connect the through-hole.

The U-shaped groove cavity on the connecting block 331 comprises an upper groove wall and a lower groove wall, two inclined surface sections 61 with high outer parts and low inner parts are symmetrically arranged on the two groove walls, and the inclination of each inclined surface section 61 is 5-20 degrees; the lower ends of the two sections of the inclined surface sections 61 are provided with arc sections 62 corresponding to the included angle of the groove cavity, and the higher ends of the two sections of the inclined surface sections 61 are provided with transitional arc sections 63 communicated with the U-shaped opening; a second bearing 52 is vertically arranged in a U-shaped groove cavity of the connecting block 331, and a through hole in the middle of the second bearing 52 is fixedly sleeved on the eccentric shaft 312; and an anti-skid sleeve 7 is sleeved on the outer side of the reciprocating frame mounting seat 34.

The reciprocating frame mounting seat 34 is sleeved on the outer wall of the outer tube 3, a strip-shaped groove is formed in one side of the reciprocating frame mounting seat 34, and step yielding holes are formed in the inner wall of the reciprocating frame mounting seat 34 at positions corresponding to the reciprocating frame;

the driving rod comprises a guide section 351 and a connecting section 352 which are integrally turned, wherein the guide section 351 extends into the outer tube 3, and the connecting section 352 is fixedly connected with the connecting rod 4; the diameter of the guide section 351 is larger than that of the connecting section 352, and the radius of the outer end of the guide section 351 is 0.2-1 mm smaller than that of the inner side of the outer tube 3.

Under the driving of the driving device, the output end of the input eccentric shaft 31 rotates in the reciprocating frame and is transmitted to the reciprocating frame, so that the reciprocating frame is driven to reciprocate in the vertical direction, and the driving rod hinged on the reciprocating frame drives the supporting rod 2 and the chisel head 1 to reciprocate along the axial direction.

The utility model discloses a use method as follows:

as shown in fig. 1 to 7, the support rod 2 of the chisel head 1 is inserted into the outer tube 3, the connection between the chisel head 1 and the drive rod 35 is not affected by the outside, meanwhile, the reciprocating frame mounting seat 34 is sleeved on the outer wall of the outer tube 3, and the outer side of the reciprocating frame mounting seat 34 is sleeved with the anti-slip sleeve 7 for holding; the interface body 32 is internally provided with a step through hole, a first bearing 51 is embedded in the step through hole, the input end of the input eccentric shaft 31 penetrates through the first bearing 51, the output end of the input eccentric shaft 31 is provided with a baffle ring 311, one end of the baffle ring 311 is provided with an eccentric shaft 312 which horizontally extends outwards, the other end of the baffle ring is abutted and positioned with the outer side of the corresponding end of the first bearing 51, a second bearing 52 is fixedly sleeved on the eccentric shaft 312, and the second bearing 52 is vertically arranged in a U-shaped groove cavity of the connecting block 331.

When the device is used, the driving device (such as a motor) drives the input eccentric shaft 31 to rotate, the eccentric shaft 312 at the output end position of the input eccentric shaft 31 synchronously rotates eccentrically relative to the input eccentric shaft 31, in the process, the eccentric shaft 31 is displaced in the vertical direction, and as the second bearing 52 is arranged in the U-shaped groove cavity of the connecting block 331, the eccentric shaft 312 reciprocates in the vertical direction, and the second bearing 52 drives the reciprocating frame to reciprocate in the vertical direction.

In the process of reciprocating the reciprocating frame in the vertical direction, the first connecting hole 333 is fixed to the reciprocating frame mounting seat 34 by a first fixing pin 336 in a penetrating manner, the reciprocating frame and the extending section 334 are turned over in a reciprocating manner clockwise and counterclockwise around the first connecting hole 333 (as shown in a and b of fig. 7), meanwhile, the two second connecting holes 334 arranged on the extending section 334 drive the second fixing pin 337 to pull the driving rod 35 to reciprocate, because the driving rod 35 is arranged in the outer tube 3, that is, the driving rod 35 is arranged in the outer tube 3, the connecting rod 4, the supporting rod 2 and the chisel head 1 are driven to reciprocate in the axial direction of the outer tube 3, such reciprocating movement can improve the processing effect of grinding or repairing bone tissues because the bone tissues are uniformly stressed and the wound surface of the chisel is neat and stable when the chisel is held vertically or obliquely, the wound can recover more quickly, and the depth and the width of the chiseling opening can be well controlled.

In the process, the eccentric shaft 312 is displaced in the vertical direction in the rotation process, an included angle between the eccentric shaft 312 and the reciprocating frame is changed, in order to avoid moving interference, the eccentric shaft 312 is sleeved with the second bearing 52, and the second bearing 52 is vertically arranged in the U-shaped groove of the connecting block 331; however, because the connecting block 331 is turned over, the inclination angle between the upper and lower inner groove walls of the "U" shaped groove and the horizontal direction also changes, and the wheel surface of the second bearing 52 is straight, and the wheel surface is not inclined in the moving process in the vertical direction, in order to make the wheel surface of the second bearing 52 and the inner groove wall of the "U" shaped groove with inclination angle change not interfere in the transmission process, two sections of inclined surface sections 61 with high outer parts and low inner parts are symmetrically arranged at the upper and lower inner groove walls, and the inclination of the inclined surface section 61 is 5-20 degrees, preferably 15 degrees; in order to fully avoid interference, arc sections 62 are arranged at the lower ends of the two inclined surface sections 61 and corresponding to the included angle of the groove cavity; in order to reduce the resistance of surface-to-surface contact in the moving process, avoid a transmission gap, reduce vibration caused by play and improve transmission quality, transition arc sections 63 communicated with U-shaped openings are arranged at the high ends of the two sections of the inclined surface sections 61.

In the transmission process, because the diameter of guide section 351 is greater than the diameter of linkage section 352, and the outer end radius of guide section 351 is less than the inboard radius of outer tube 3 by 0.2 ~ 1mm, preferably 0.3mm, there is the clearance of stepping down, axial removal interference also can be avoided, there is the drunkenness in the transmission process, form fore-and-aft vibration at connecting rod 4 from this, connecting rod 4 adopts the TPE material to make, can act as the usefulness of elastic component, can cushion the shake in the transmission process, guarantee the stability of direction of transmission, namely, guarantee chisel head 1's removal stationarity, and the accuracy of chisel bone position processing, the simple operation, simple to operate.

In addition, step abdicating holes are arranged at the positions, corresponding to the reciprocating frame, on the inner wall of the reciprocating frame mounting seat 34, so as to adapt to the diameters of input eccentric shafts 31 with various specifications and avoid the interference between the outer wall of the connecting block 331 and the inner wall of the reciprocating frame mounting seat 34; a strip-shaped groove is formed in one side of the reciprocating frame mounting seat 34, deformation stress is facilitated, and stress strength is buffered.

The utility model discloses a description part is unanimous with prior art, does not describe herein again.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. An electric osteotome, comprising: the bone chisel device comprises a chisel head (1), a support rod (2) and an outer tube (3), wherein the chisel head (1) is axially provided with a section of arc-shaped plate which horizontally extends out, the end face of the extending end of the arc-shaped plate is provided with a cutting edge, the outer tube (3) is sleeved on the support rod (2), and the support rod (2) is connected with a connecting rod (4); the transmission device comprises an input eccentric shaft (31), an interface body (32), a reciprocating frame mounting seat (34) and a driving rod, wherein one end of the input eccentric shaft (31) is fixedly sleeved in the interface body (32), the other end of the input eccentric shaft is movably connected with the reciprocating frame, the reciprocating frame is hinged in the reciprocating frame mounting seat (34), the reciprocating frame mounting seat (34) is sleeved on the outer wall of the outer tube (3), the corresponding position of one end of the reciprocating frame is connected with the driving rod, and the driving rod extends into the outer tube (3) and is fixedly connected with the connecting rod (4); under the drive of the driving device, the output end of the input eccentric shaft (31) rotates in the reciprocating frame and is transmitted to the reciprocating frame to drive the reciprocating frame to reciprocate in the vertical direction, and the driving rod connected with the corresponding position of the reciprocating frame drives the supporting rod (2) and the chisel head (1) to reciprocate along the axial direction.

2. An electric osteotome according to claim 1, wherein: the interface body (32) is provided with a step through hole, a first bearing (51) is embedded in the step through hole, the input end of the input eccentric shaft (31) penetrates through the first bearing (51), the output end of the input eccentric shaft (31) is provided with a baffle ring (311), one end of the baffle ring (311) is provided with an eccentric shaft (312) which horizontally extends outwards, and the other end of the baffle ring is abutted and positioned with the outer side of the corresponding end of the first bearing (51).

3. An electric osteotome according to claim 1, wherein: the reciprocating frame comprises a connecting block (331), a groove cavity with a U-shaped cross section is arranged in the connecting block (331), a horizontally extending support rod (332) is arranged at the non-opening end of the connecting block (331), a first connecting hole (333) is formed in the extending end of the support rod (332), a cavity structure is arranged in the reciprocating frame mounting seat (34), a first fixing pin (336) penetrates through one side of the reciprocating frame mounting seat (34), and the penetrating end of the first fixing pin (336) extends into the first connecting hole (333); one side of first connecting hole (333) outer wall is equipped with vertical extension section (334) that stretches out, and the symmetry is equipped with two second connecting holes (335) on the extension end terminal surface of this extension section (334) the position department that corresponds second connecting hole (335) on actuating lever (35) is equipped with the connecting hole, at one end wear to be equipped with second fixed pin (337) in second connecting hole (335), place the connecting hole one end of actuating lever between two second connecting holes (335), connecting hole and two second connecting holes (335) form horizontally connect the through-hole, second fixed pin (337) rotate to wear to establish and fix in this connect the through-hole.

4. An electric osteotome according to claim 3, wherein: the U-shaped groove cavity on the connecting block (331) comprises an upper groove wall and a lower groove wall, two inclined surface sections (61) with high outer parts and low inner parts are symmetrically arranged at the two groove walls, an arc section (62) is arranged at the lower end of each inclined surface section (61) corresponding to the included angle of the groove cavity, and a transition arc section (63) communicated with the U-shaped opening is arranged at the higher end of each inclined surface section (61); a second bearing (52) is vertically arranged in a U-shaped groove cavity of the connecting block (331), and a through hole in the middle of the second bearing (52) is sleeved and fixed on the eccentric shaft (312).

5. An electric osteotome according to claim 4, wherein: the inclination of the inclined plane section (61) is 5-20 degrees.

6. An electric osteotome according to claim 1, wherein: one side of the reciprocating frame mounting seat (34) is provided with a strip-shaped groove, and the inner wall of the reciprocating frame mounting seat (34) is provided with a step abdicating hole at a position corresponding to the reciprocating frame (33).

7. An electric osteotome according to claim 6, wherein: and an anti-skidding sleeve (7) is sleeved on the outer side of the reciprocating frame mounting seat (34).

8. An electric osteotome according to claim 1, wherein: the driving rod comprises a guide section (351) and a connecting section (352) which are integrally turned, wherein the guide section (351) extends into the outer tube (3) and enables the connecting section (352) to be fixedly connected with the connecting rod (4).

9. An electric osteotome according to claim 8, wherein: the diameter of the guide section (351) is larger than that of the connecting section (352), and the radius of the outer end of the guide section (351) is 0.2-1 mm smaller than that of the inner side of the outer tube (3).

10. An electric osteotome according to claim 1, wherein: the connecting rod (4) is made of TPE materials.