CN219461296U - Planing tool bit for medical operation - Google Patents

Abstract

The utility model relates to the technical field of planing tool bits, in particular to a planing tool bit for medical operation, wherein a reinforcing sleeve and a driving motor are arranged in an outer adapter, a first fixed bearing and an annular spiral groove are arranged at one end of an inner adapter, which is close to the outer adapter, the first fixed bearing is fixed on the inner wall of the inner adapter, a threaded ring matched with the annular spiral groove is arranged at one end of the reinforcing sleeve, a second fixed bearing is arranged at the other end of the reinforcing sleeve, one end of an inner cutter rod sequentially penetrates through the second fixed bearing and the first fixed bearing, and a good supporting force can be provided for the inner cutter rod during high-speed rotation through the reinforcing sleeve and the second fixed bearing, so that the inner cutter rod cannot generate radial runout, the stable use of the structure during use is improved, and the operation quality is further improved.

Description

Planing tool bit for medical operation

Technical Field

The utility model relates to the technical field of planing tool bits, in particular to a planing tool bit for medical operation.

Background

As is well known, the planing tool bit consists of two sleeves which are stacked together, wherein the two sleeves are provided with windows, the windows at the tip end of the two sleeves are used for cutting through a fixed outer tool pipe and a rotary inner core, tissues are sucked into the cutting edge of the tool, and scraps are sucked out through a suction device so as to achieve the aim of cutting;

however, in the planing tool used in the prior art, the radial runout condition exists due to insufficient supporting force when the inner tool tube rotates at a high speed, so that the stable use of the planing tool bit is affected, and the operation quality is further affected.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a planing tool bit for medical operation.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a medical treatment is planing tool bit for operation, includes outer adapter, inner rotating joint and interior cutter arbor, the one end of outer adapter is equipped with the spacer sleeve, the one end that outer adapter was kept away from to the spacer sleeve is equipped with outer cutter arbor, the one end that outer cutter arbor kept away from the spacer sleeve is equipped with outer tool bit, the other end of outer adapter is equipped with the sealing washer, inner rotating joint runs through sealing washer and outer adapter, interior cutter arbor runs through spacer sleeve and outer cutter arbor, just the one end and the inner rotating joint butt joint of interior cutter arbor, the other end of interior cutter arbor is equipped with interior cutter bit, the inside of outer adapter is equipped with enhancement sleeve pipe and driving motor, the one end that inner rotating joint is close to outer adapter is equipped with first fixed bearing and annular groove, first fixed bearing is fixed on the inner wall of inner rotating joint, the one end of enhancement sleeve pipe is equipped with annular groove complex screwed ring, the other end of enhancement sleeve pipe is equipped with second fixed bearing, the one end of inner cutter arbor runs through second fixed bearing and first fixed bearing in proper order, just interior and inner rotating motor connects the intercommunication, the inside of cutter arbor is equipped with the transmission wheel and the outer wall of driving motor is equipped with the transmission structure between the outer peripheral side of outer rotating joint, the cutter arbor is equipped with the transmission end of driving wheel.

In order to improve the practicability of the sealing ring, the utility model is improved in that the sealing ring adopts a silica gel ring.

In order to facilitate the operation of the reinforcing sleeve, the utility model is improved in that one end of the reinforcing sleeve, which is far away from the inner rotary joint, is provided with a plurality of poking blocks.

Further, the utility model is improved in that the outer wall of the reinforcing sleeve is provided with a plurality of anti-skid patterns.

In order to improve the strength of the structure, the utility model is improved in that the reinforcing sleeve and the stirring block are both made of metal materials.

In order to improve the stability of the inner cutter bar during rotation, the utility model is improved in that annular plates are respectively arranged at two ends of the driving wheel, annular grooves are arranged on the annular plates, and limit rings matched with the annular grooves are arranged on the periphery of the driving disc.

Further, the improvement of the utility model is that a plurality of miniature balls are arranged on the inner wall of the annular groove, and the outer wall of the limiting ring contacts with the miniature balls.

(III) beneficial effects

Compared with the prior art, the planing tool bit for medical operation has the following beneficial effects:

according to the planing tool bit for the medical operation, through the reinforcing sleeve and the second fixed bearing, a good supporting force can be provided for the inner cutter bar when the inner cutter bar rotates at a high speed, so that the inner cutter bar cannot generate radial runout, the stable use of the structure in use is improved, and the operation quality is further improved;

through the mutual cooperation of screwed ring and annular helicoidal groove, make the reinforcement sleeve be convenient for install in the one end of internal rotation joint, simple structure, convenient operation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a split structure of the outer cutter bar of the present utility model;

FIG. 3 is a schematic view showing a split structure of the inner cutter bar according to the present utility model;

FIG. 4 is a schematic view of the joint between the inner joint and the inner cutter bar;

FIG. 5 is a schematic view of a partial enlarged structure at A in FIG. 4 according to the present utility model;

in the figure: 1. an inner rotary joint; 2. a seal ring; 3. an outer adapter; 4. an outer cutter bar; 5. an outer cutter head; 6. an inner cutter bar; 7. an inner cutter head; 8. a positioning sleeve; 9. a driving motor; 10. a driving wheel; 11. a drive plate; 12. reinforcing the sleeve; 13. an annular groove; 14. a poking block; 15. a first fixed bearing; 16. a second fixed bearing; 17. a limiting ring; 18. an annular groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the planing tool bit for medical operation of the present utility model comprises an outer adapter 3, an inner adapter 1 and an inner cutter bar 6, wherein one end of the outer adapter 3 is provided with a positioning sleeve 8, one end of the positioning sleeve 8 far away from the outer adapter 3 is provided with an outer cutter bar 4, one end of the outer cutter bar 4 far away from the positioning sleeve 8 is provided with an outer cutter bit 5, the other end of the outer adapter 3 is provided with a sealing ring 2, the inner adapter 1 penetrates through the sealing ring 2 and the outer adapter 3, the inner cutter bar 6 penetrates through the positioning sleeve 8 and the outer cutter bar 4, one end of the inner cutter bar 6 is in butt joint with the inner adapter 1, the other end of the inner cutter bar 6 is provided with an inner cutter bit 7, the inside of the outer adapter 3 is provided with a reinforcing sleeve 12 and a driving motor 9, one end of the inner adapter 1 near the outer adapter 3 is provided with a first fixed bearing 15 and an annular spiral groove 13, the first fixed bearing 15 is fixed on the inner wall of the inner rotary joint 1, one end of the reinforcing sleeve 12 is provided with a threaded ring matched with the annular threaded groove 13, the other end of the reinforcing sleeve 12 is provided with a second fixed bearing 16, one end of the inner cutter bar 6 sequentially penetrates through the second fixed bearing 16 and the first fixed bearing 15, the inner cutter bar 6 is communicated with the inner rotary joint 1, the driving motor 9 is fixed in the outer rotary joint 3, the output end of the driving motor 9 is provided with a driving wheel 10, the periphery of the inner cutter bar 6 is provided with a driving disc 11, a meshing structure is arranged between the outer wall of the driving wheel 10 and the outer wall of the driving disc 11, the structure is matched with a planing host machine in use, is used for cutting soft tissues and bone tissues in a joint cavity during arthroscopic surgery, a designated aspirator is in butt joint with the inner rotary joint 1, the outer cutter bar 4 is static in use, the inner cutter bar 6 rotates, the outer cutter head 5 and the inner cutter head 7 are sharp cutting edges, when the inner cutter bar 6 rotates at high speed, soft tissues are cut by biting like scissors, the cut soft tissues are sucked outside by a designated suction device of the inner joint 1 in the inner cutter bar 6, the position of the driving motor 9 is fixed, the driving motor 9 can rotate the driving wheel 10 at high speed after being started, the driving wheel 10 drives the driving disc 11 to rotate at high speed through the meshed effect, the inner cutter bar 6 is driven to rotate at high speed through the effect of the first fixed bearing 15, the inner cutter bar 6 can rotate at high speed in the inner joint 1 through the effect of the second fixed bearing 16, the first fixing bearing 15 and the second fixing bearing 16 are all sealing bearings, when the reinforcing sleeve 12 is installed, the inner cutter bar 6 penetrates through the second fixing bearing 16, then the reinforcing sleeve 12 is rotated, the reinforcing sleeve 12 is abutted with the inner rotary joint 1 through mutual matching of the threaded ring and the annular screw groove 13, and the diameter of one end, close to the inner rotary joint 1, of the inner cutter bar 6 is larger than that of one end, far away from the inner rotary joint 1, of the inner cutter bar 6, so that after the reinforcing sleeve 12 is fixed, interference fit is formed between the inner wall of the second fixing bearing 16 and the outer wall of the inner cutter bar 6, and the inner cutter bar 6 is more stable in rotation.

Further, the sealing ring 2 adopts a silica gel ring, and the silica gel ring has the advantages of good sealing performance and stable use, and is not easy to damage.

If the outer wall of the reinforcing sleeve 12 is too smooth, the reinforcing sleeve 12 is inconvenient to butt joint on the inner rotary joint 1, a plurality of poking blocks 14 are arranged at one end, far away from the inner rotary joint 1, of the reinforcing sleeve 12, a plurality of anti-slip patterns are arranged on the outer wall of the reinforcing sleeve 12, an impetus can be provided for the reinforcing sleeve 12 through the poking blocks 14, friction force of the outer wall of the reinforcing sleeve 12 can be improved through the anti-slip patterns, the poking blocks 14 are poked, the reinforcing sleeve 12 can be rotated, and the reinforcing sleeve 12 can be directly held to rotate.

Further, the reinforcing sleeve 12 and the stirring block 14 are made of metal, the reinforcing sleeve 12 and the stirring block 14 are made of stainless steel, and the stainless steel has the advantages of high hardness and high corrosion resistance and is not easy to damage.

The unsteady fit between drive wheel 10 and drive disk 11 can make interior cutter arbor 6 unstable when rotating, the both ends of drive wheel 10 are equipped with annular slab respectively, be equipped with ring channel 18 on the annular slab, drive disk 11 the week side be equipped with ring channel 18 complex spacing ring 17, be equipped with a plurality of miniature balls on the inner wall of ring channel 18, the outer wall contact miniature ball of spacing ring 17, as shown in fig. 4, when drive wheel 10 drives drive disk 11 through the effect of meshing, can make the rotation of spacing ring 17 at ring channel 18, through the cooperation of spacing ring 17 and ring channel 18, can provide a spacing effect between drive wheel 10 and the drive disk 11 to make the more stable of cooperation between drive wheel 10 and the drive disk 11, make interior cutter arbor 6 more stable when rotating, here, through the a plurality of miniature balls that are equipped with, can make spacing ring 17 more smooth in the inside rotation of ring channel 18.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a medical treatment is planing tool bit for operation, includes outer adapter (3), inner rotating joint (1) and interior cutter arbor (6), the one end of outer adapter (3) is equipped with spacer sleeve (8), the one end that outer adapter (3) was kept away from to spacer sleeve (8) is equipped with outer cutter arbor (4), the one end that spacer sleeve (8) was kept away from to outer cutter arbor (4) is equipped with outer tool bit (5), the other end of outer adapter (3) is equipped with sealing washer (2), inner rotating joint (1) runs through sealing washer (2) and outer adapter (3), interior cutter arbor (6) run through spacer sleeve (8) and outer cutter arbor (4), just the one end and inner rotating joint (1) butt joint of interior cutter arbor (6), the other end of inner cutter arbor (6) is equipped with interior tool bit (7), its characterized in that: the inside of outer adapter (3) is equipped with sleeve pipe (12) and driving motor (9), the one end that inner rotating joint (1) is close to outer adapter (3) is equipped with first fixed bearing (15) and annular helicoidal groove (13), first fixed bearing (15) are fixed on the inner wall of inner rotating joint (1), sleeve pipe (12) is strengthened one end and is equipped with the screwed ring with annular helicoidal groove (13) complex, sleeve pipe (12) is strengthened the other end and is equipped with second fixed bearing (16), the one end of inner cutter arbor (6) runs through second fixed bearing (16) and first fixed bearing (15) in proper order, just inner cutter arbor (6) and inner rotating joint (1) intercommunication, driving motor (9) are fixed in the inside of outer adapter (3), the output of driving motor (9) is equipped with drive wheel (10), the week side of inner cutter arbor (6) is equipped with driving disk (11), be the meshing structure between the outer wall of drive wheel (10) and the outer wall of driving wheel (11).

2. The medical-surgical planing tool bit according to claim 1, wherein: the sealing ring (2) is a silica gel ring.

3. The medical-surgical planing tool bit according to claim 2, characterized in that: one end of the reinforcing sleeve (12) far away from the inner joint (1) is provided with a plurality of poking blocks (14).

4. A medical surgical planing tool according to claim 3, wherein: the outer wall of the reinforcing sleeve (12) is provided with a plurality of anti-skid patterns.

5. The medical-surgical planing tool bit according to claim 4, wherein: the reinforcing sleeve (12) and the poking block (14) are made of metal materials.

6. The medical-surgical planing tool bit according to claim 5, wherein: annular plates are respectively arranged at two ends of the driving wheel (10), annular grooves (18) are formed in the annular plates, and limiting rings (17) matched with the annular grooves (18) are arranged on the periphery of the driving disc (11).

7. The medical-surgical planing tool bit according to claim 6, wherein: the inner wall of the annular groove (18) is provided with a plurality of miniature balls, and the outer wall of the limiting ring (17) is contacted with the miniature balls.