CN213075806U - Under-mirror planing device and planing equipment - Google Patents

Abstract

A under-mirror planing device and planing equipment relate to the technical field of medical instruments, and comprise planing rods, wherein two opposite ends of each planing rod are respectively a far end and a near end, and a plurality of planing edges which are radially arranged relative to the axis of each planing rod are arranged at the far ends of the planing rods; the planing edge comprises at least one first planing edge and at least one second planing edge, at least one notch is arranged on the first planing edge and/or the second planing edge, and when the notches are arranged on the first planing edge and the second planing edge, the distance between the notch on the first planing edge and the axis of the planing rod is different from the distance between the notch on the second planing edge and the axis of the planing rod. In the operation process of the under-mirror planing device, the limiting protrusion can be formed at the notch, and the planing rod is limited, so that the stability of the under-mirror planing device in the operation process is higher.

Description

Under-mirror planing device and planing equipment

Technical Field

The utility model relates to the field of medical equipment, particularly, relate to a under-mirror planing device and planing equipment.

Background

In the course of performing a medical operation, there are cases where it is necessary to drill a bone using a planing device under observation of an endoscope. The hole is arranged in the drill bit of the planing device in the prior art, the drill bit is firstly put in during the operation process, then the positioning nail is put in along the hole in the middle of the drill bit, and the positioning nail is knocked, so that the positioning nail is nailed to the bone surface, and the drilling position of the drill bit is positioned.

In the drilling process of the drill bit, the contact area of the positioning nail and the bone is gradually reduced along with the increase of the depth of the hole, and the head of the positioning nail is gradually pushed back into the hole of the drill bit by the bone along with the increase of the distance of the drill bit penetrating into the bone, so that the positioning effect of the positioning nail on the drill bit is gradually reduced to be zero, and the stability of the drill bit in the subsequent bone drilling process is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a planing device and planing equipment under mirror, it can form spacing arch at the brill bone in-process through first breach and/or second breach to play the positioning action to the drill bit, make drill bit stability higher.

The utility model discloses a realize like this:

a under-mirror planing device comprises a planing rod, wherein two opposite ends of the planing rod are a far end and a near end respectively, and a plurality of planing edges which are radially arranged relative to the axis of the planing rod are arranged at the far end of the planing rod;

the planing blade comprises at least one first planing blade and at least one second planing blade, the first planing blade and/or the second planing blade are/is provided with at least one notch, when the first planing blade and the second planing blade are both provided with notches, the distance between the notch on the first planing blade and the axis of the planing rod is different from the distance between the notch on the second planing blade and the axis of the planing rod.

In a possible embodiment, the number of the first planing edges is the same as the number of the second planing edges, and the first planing edges and the second planing edges are spaced apart.

In a possible embodiment, the first planing edge is provided with two notches at an interval, the second planing edge is provided with one notch, a distance between a notch of the second planing edge and the axis of the planing rod is smaller than a distance between one of the notches of the first planing edge and the axis of the planing rod, and a distance between a notch of the second planing edge and the axis of the planing rod is larger than a distance between the other notch of the first planing edge and the axis of the planing rod.

In a possible embodiment, the angle between the planing edge and the end face of the distal end of the planing rod is between 30 ° and 35 °.

In a feasible implementation scheme, the planing device further comprises a positioning piece, a positioning hole penetrating through the planing rod is formed in the axial direction of the planing rod, the positioning piece extends into the positioning hole, one end of the positioning piece is a tip end, and the tip end can be extended out of the far end of the positioning hole.

In a possible embodiment, an elastic member is disposed in the positioning hole, and the elastic member is used for enabling the tip end of the positioning member to extend out of the far end of the positioning hole.

In a possible embodiment, the positioning device further comprises a sealing plug, the sealing plug is blocked at the proximal end of the positioning hole, the proximal end of the positioning member can extend out of the sealing plug, and the elastic member is located between the positioning member and the sealing plug.

In a possible embodiment, the planing rod includes a first section, a second section and a tip connected in sequence, the diameter of the first section is smaller than that of the second section, the maximum diameter of the tip is smaller than or equal to that of the second section, the elastic member is sleeved on the first section, one end of the elastic member abuts against the second section, and the other end of the elastic member abuts against the sealing plug.

In a possible embodiment, the maximum diameter of the tip of the positioning member is smaller than the aperture of the positioning hole, and the difference between the aperture of the positioning hole and the maximum diameter of the tip of the positioning member is 0.01mm to 0.03 mm.

A planing device comprises a driving mechanism and the under-mirror planing device, wherein the driving mechanism is connected with the planing rod to drive the planing rod to rotate.

The utility model discloses beneficial effect includes at least:

in the planing process of the under-mirror planing device, the planing rod drives the planing edge to rotate to grind the bone surface in the rotating process, so that the planing process is finished.

If only be provided with the breach on first planing sword, then carry out the planing in-process at first planing sword, the sword angle in breach both sides grinds the sclerotin, and locate to form spacing arch at the breach, spacing arch plays limiting displacement to first planing sword, plays limiting displacement to the planing pole promptly for the rotational stability of planing pole is stronger, and this spacing arch is when second planing sword rotates, is shaved by the second planing sharpening, thereby makes the planing process go on smoothly.

If only be provided with the breach on the second planing sword, then locate to form spacing arch in the breach when the second planing sword is planed, spacing arch plays limiting displacement to the second planing sword, plays limiting displacement to the planing pole promptly for the stability in rotation of planing pole is stronger, and this spacing arch is when first planing sword rotates, is shaved by first planing sharpening cutter grinding, thereby makes the planing process go on smoothly.

When all being provided with the breach on first planing sword and second planing sword, then at the rotation in-process, breach department at first planing sword and the breach department of second planing sword all form spacing arch, spacing arch all plays limiting displacement to first planing sword and second planing sword, because the distance between the breach on the first planing sword and the axis of planing pole is different with the distance between the breach on the second planing sword and the axis of planing pole, consequently at the rotation in-process, spacing arch that the breach department of first planing sword formed is cut by the sharpening of second, the spacing arch of the breach department formation of second planing sword is cut by first sharpening cutter grinding, thereby make the planing process go on smoothly.

To sum up, the in-process of using the planing pole that this application provided can form spacing arch in breach department, plays limiting displacement to the planing pole to make under the mirror planing device stability in the operation process higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic external structural view of an under-mirror planing device according to an embodiment of the present invention;

fig. 2 is a first schematic view illustrating the distribution of the planing edges on the head of the planing rod in the under-mirror planing device according to an embodiment of the present invention;

fig. 3 is a schematic view showing the distribution of the planing edges on the head of the planing rod in the under-mirror planing device according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a first planing edge according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second planing edge according to an embodiment of the present invention;

fig. 6 is a schematic view of an internal structure of an under-mirror planing device according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a planing rod of the under-mirror planing device according to an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

fig. 9 is a schematic structural diagram of a positioning element in the under-mirror gouging device according to an embodiment of the present invention.

In the figure:

10-planing a rod; 11-a first planing edge; 12-a second planing edge; 13-a notch; 14-positioning holes;

20-a positioning element; 21-first stage; 22-a second section; 23-tip;

30-an elastic member;

40-a sealing plug; 41-flanging; 42-through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are conventionally placed when in use, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the designated under-mirror planing device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

First embodiment

Referring to fig. 1-5, the present embodiment provides an under-mirror planing device, which includes a planing rod 10, wherein two opposite ends of the planing rod 10 are a distal end and a proximal end, respectively, and the distal end of the planing rod 10 is provided with a plurality of planing edges radially arranged relative to an axis of the planing rod 10.

The planing edge includes at least one first planing edge 11 and at least one second planing edge 12, at least one notch 13 is provided on the first planing edge 11 and/or the second planing edge 12, and when the notches 13 are provided on both the first planing edge 11 and the second planing edge 12, the distance between the notch 13 on the first planing edge 11 and the axis of the planing rod 10 is different from the distance between the notch 13 on the second planing edge 12 and the axis of the planing rod 10.

That is, in the first arrangement, the notch 13 is provided only in the first cutting edge 11, and the notch 13 is not provided in the second cutting edge 12. In the planing process of the first planing edge 11, bone is ground at the edge angles on two sides of the notch 13, a limiting protrusion is formed at the notch 13, the limiting protrusion plays a limiting role for the first planing edge 11, namely the planing rod 10, so that the rotation stability of the planing rod 10 is stronger, and the limiting protrusion is ground by the second planing edge 12 when the second planing edge 12 rotates, so that the planing process is smoothly carried out.

In a second arrangement, the notch 13 is provided only in the second cutting edge 12, and the notch 13 is not provided in the first cutting edge 11. Form spacing arch in breach 13 department when second planing sword 12 is planed, spacing arch plays limiting displacement to second planing sword 12, plays limiting displacement to planing pole 10 promptly for the stability in rotation of planing pole 10 is stronger, and this spacing arch is when first planing sword 11 rotates, is ground by first planing sword 11, thereby makes the planing process go on smoothly.

In a third arrangement, the first cutting edge 11 and the second cutting edge 12 are provided with notches 13. In the rotating process, a limiting protrusion is formed at the notch 13 of the first planing edge 11 and the notch 13 of the second planing edge 12, and the limiting protrusion has a limiting effect on both the first planing edge 11 and the second planing edge 12, and because the distance between the notch 13 on the first planing edge 11 and the axis of the planing rod 10 is different from the distance between the notch 13 on the second planing edge 12 and the axis of the planing rod 10, in the rotating process, the limiting protrusion formed at the notch 13 of the first planing edge 11 is ground by the second planing edge 12, and the limiting protrusion formed at the notch 13 of the second planing edge 12 is ground by the first planing edge 11, so that the planing process is smoothly performed.

As is clear from the above, the third embodiment is more stable, and therefore, the third embodiment is preferable.

In the following part of the present embodiment, the structure of the under-mirror shaving apparatus will be further described by taking an example in which the first and second shaving edges 11 and 12 are provided with the notches 13.

In a specific embodiment of this embodiment, the planing edge only includes the first planing edge 11 and the second planing edge 12, or the planing edge may further include a third planing edge, the third planing edge may not be provided with the notch 13, and if the third planing edge is provided with the notch 13, the position of the notch 13 on the third planing edge is different from the position of the notch 13 on the first planing edge 11 and the position of the notch 13 on the second planing edge 12. Similarly, the planing edge may also include a fourth planing edge, a fifth planing edge, a sixth planing edge, and the like. The notches 13 of the different types of cutting edges differ from each other in position.

As shown in fig. 2 and 3, in a preferred embodiment, the planing edge includes only the first planing edge 11 and the second planing edge 12.

In a possible embodiment, the number of the first planing edges 11 is the same as the number of the second planing edges 12, and the first planing edges 11 are spaced apart from the second planing edges 12.

In a possible embodiment, two notches 13 are provided at intervals on the first planing edge 11, one notch 13 is provided on the second planing edge 12, the distance between the notch 13 of the second planing edge 12 and the axis of the planing rod 10 is smaller than the distance between one of the notches 13 on the first planing edge 11 and the axis of the planing rod 10, and the distance between the notch 13 of the second planing edge 12 and the axis of the planing rod 10 is larger than the distance between the other notch 13 on the first planing edge 11 and the axis of the planing rod 10.

In fig. 2, the number of the first planing edge 11 and the second planing edge 12 is two, and the first planing edge 11 and the second planing edge 12 are arranged at an interval. Adjacent to the first cutting edge 11 is a second cutting edge 12. The dotted circular lines in fig. 2 are isodiametric lines, each disposed coaxially, and each disposed coaxially with the planing rod 10. That is, the distances between the points on the same isodiametric line and the axis of the planing rod 10 are equal. As can be seen from fig. 2, the first planing edge 11 is provided with two notches 13, and the two notches 13 are located on different equal-diameter lines; the second planing edge 12 is provided with a notch 13, and the notch 13 and any notch 13 on the first planing edge 11 are respectively located on different equal-diameter lines.

In another possible embodiment, the number of the first planing edges 11 is different from that of the second planing edges 12, and if the number of the first planing edges 11 is greater than that of the second planing edges 12, each second planing edge 12 is located between two first planing edges 11, that is, any two second planing edges 12 are not adjacent. If the number of the second planing edges 12 is greater than the number of the first planing edges 11, each first planing edge 11 is located between two second planing edges 12, that is, any two first planing edges 11 are not adjacent to each other.

In fig. 3, the number of the first cutting edges 11 is two, the number of the second cutting edges 12 is three, and both sides of the two first cutting edges 11 are adjacent to the second cutting edges 12. Some of the second planing edges 12 are not adjacent, but there are instances where two of the second planing edges 12 are adjacent. The dotted circular lines in fig. 3 are isodiametric lines, each disposed coaxially, and each disposed coaxially with the planing rod 10. That is, the distances between the points on the same isodiametric line and the axis of the planing rod 10 are equal. As can be seen from fig. 3, the first planing edge 11 is provided with two notches 13, and the two notches 13 are located on different equal-diameter lines; the second planing edge 12 is provided with a notch 13, and the notch 13 and any notch 13 on the first planing edge 11 are respectively located on different equal-diameter lines.

In a preferred embodiment of this embodiment, the angle between the planing edge and the end surface of the distal end of the planing rod 10 is between 30 ° and 35 °. So set up, be convenient for carry out grinding or planing operation, grinding or planing are efficient.

As shown in fig. 1, 6-9, in a possible embodiment of this embodiment, the under-mirror shaving apparatus further includes a positioning member 20, a positioning hole 14 is disposed along the axial direction of the shaving rod 10 and penetrates through the shaving rod 10, the positioning member 20 extends into the positioning hole 14, one end of the positioning member 20 is a tip 23, and the tip 23 can extend from the distal end of the positioning hole 14. So set up, setting element 20 can pierce the bone surface to play the effect of initial positioning to planing device under the mirror, thereby further improve planing device's under the mirror stability.

In a preferred embodiment, the maximum diameter of the tip 23 of the positioning member 20 is smaller than the aperture of the positioning aperture 14, and the difference between the aperture of the positioning aperture 14 and the maximum diameter of the tip 23 of the positioning member 20 is 0.01mm to 0.03 mm. The arrangement is such that the gap between the tip 23 of the positioning member 20 and the aperture of the positioning hole 14 is small, and the liquid can pass without bone fragments being inserted.

In a preferred embodiment, as shown in figure 6, a resilient member 30 is disposed within the locator aperture 14, the resilient member 30 being adapted to urge the tip 23 of the locator member 20 out of the distal end of the locator aperture 14. With this arrangement, the elastic member 30 can keep the tip 23 of the positioning member 20 outside the positioning hole 14 at all times during the process of moving the under-mirror shaving apparatus to the place to be ground, thereby preventing the substance from entering the positioning hole 14. During the grinding process, the elastic member 30 applies a pushing force to the positioning member 20, so that the relative friction between the positioning member 20 and the bone surface is greater, thereby improving the positioning effect of the positioning member 20.

In one possible embodiment, the two ends of the elastic member 30 are connected to the positioning member 20 and the inner wall of the positioning hole 14, respectively, to function as an elastic connection between the positioning member 20 and the planing bar 10.

In a preferred embodiment, as shown in fig. 6-8, the under-mirror gouging device further comprises a sealing plug 40, the sealing plug 40 is sealed at the proximal end of the positioning hole 14, the proximal end of the positioning member 20 can extend out of the sealing plug 40, and the elastic member 30 is located between the positioning member 20 and the sealing plug 40. The sealing plug 40 acts as a stop for the elastic member 30 to prevent the elastic member 30 from coming out of the positioning hole 14.

The elastic member 30 and the positioning member 20 may be fixedly connected or abutted.

When the elastic member 30 abuts against the positioning member 20, a boss extending outward in the axial direction may be provided on a side surface of the positioning member 20, one end of the elastic member 30 abuts against the boss, and the other end abuts against the sealing plug 40.

Further, as shown in fig. 8, the distal end of the sealing plug 40 is provided with a flange 41, and the flange 41 extends outward in the axial direction of the sealing plug 40. A through hole 42 is provided in the sealing plug 40, the through hole 42 being used for the proximal end of the positioning member 20 to protrude. Correspondingly, a stop groove is provided on the end face of the distal end of the planing bar 10, in which the flange 41 is partially located after the sealing plug 40 has been inserted into the positioning hole 14. The spacing groove defines to some extent the position of the sealing plug 40 to facilitate removal of the sealing plug 40.

Further, a round hole may be formed in the flange 41 of the sealing plug 40, and a threaded hole may be formed in the bottom of the limiting groove, so that after the distal end of the sealing plug 40 is inserted into the positioning hole 14, the round hole is opposite to the threaded hole, and a locking bolt may be screwed into the threaded hole through the round hole to fix the sealing plug 40 and the planing rod 10.

Alternatively, the sealing plug 40 is made of an elastic material, such as rubber. The outer diameter of the distal end of the sealing plug 40 is larger than the inner diameter of the positioning hole 14, and when the distal end of the sealing plug 40 is inserted into the positioning hole 14, the sealing plug 40 deforms to a certain extent, so that the friction force between the sealing plug and the positioning hole 14 is increased, and the fixing effect is achieved. Further, a cylinder made of hard material may be provided in the through hole 42 of the sealing plug 40 to maintain the aperture of the through hole 42 to facilitate the axial movement of the positioning member 20 relative to the through hole 42.

Alternatively, as shown in fig. 6 and 9, in a preferred embodiment, the planing rod 10 comprises a first section 21, a second section 22 and a tip 23 connected in sequence, the diameter of the first section 21 is smaller than that of the second section 22, the maximum diameter of the tip 23 is smaller than or equal to that of the second section 22, the elastic member 30 is sleeved on the first section 21, one end of the elastic member 30 abuts against the second section 22, the other end of the elastic member 30 abuts against the sealing plug 40, and the through hole 42 of the sealing plug 40 is used for allowing the second section 22 to extend out. The arrangement is such that the elastic element 30, the positioning element 20, the planing rod 10 and the sealing element can be relatively separated, thereby facilitating the installation and the disassembly.

Second embodiment

This embodiment provides a planing device, which includes a driving mechanism, and the under-mirror planing device provided in the first embodiment, wherein the driving mechanism is connected to the planing rod to drive the planing rod to rotate.

Specifically, the drive mechanism may drive the planing rod to rotate continuously.

Or the driving mechanism can drive the planing rod to rotate in a reciprocating manner, namely the driving mechanism drives the planing rod to rotate clockwise for a set angle and then drives the planing rod to rotate anticlockwise for a set angle, and the operation is repeated. The set angle is equal to or greater than 180 °.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The under-mirror planing device is characterized by comprising a planing rod, wherein the two opposite ends of the planing rod are respectively a far end and a near end, and a plurality of planing edges which are radially arranged relative to the axis of the planing rod are arranged at the far end of the planing rod;

the planing blade comprises at least one first planing blade and at least one second planing blade, the first planing blade and/or the second planing blade are/is provided with at least one notch, when the first planing blade and the second planing blade are both provided with notches, the distance between the notch on the first planing blade and the axis of the planing rod is different from the distance between the notch on the second planing blade and the axis of the planing rod.

2. The under-mirror shaving apparatus according to claim 1, wherein the number of the first shaving edges is the same as the number of the second shaving edges, and the first shaving edges are spaced apart from the second shaving edges.

3. The under-the-mirror shaving apparatus according to claim 1, wherein two of the notches are provided at an interval on the first shaving edge, one of the notches is provided on the second shaving edge, a distance between the notch of the second shaving edge and the axis of the shaving rod is smaller than a distance between one of the notches on the first shaving edge and the axis of the shaving rod, and a distance between the notch of the second shaving edge and the axis of the shaving rod is larger than a distance between the other notch on the first shaving edge and the axis of the shaving rod.

4. The under-the-mirror gouging device of claim 1, wherein an angle between the gouging edge and the end surface of the distal end of the gouging rod is between 30 ° and 35 °.

5. The under-mirror shaving apparatus according to claim 1, further comprising a positioning member, wherein a positioning hole is provided through the shaving rod in an axial direction of the shaving rod, the positioning member extends into the positioning hole, and one end of the positioning member is a tip end which can extend from a distal end of the positioning hole.

6. The under-mirror gouging device according to claim 5, wherein a resilient member is disposed within the locating hole, the resilient member being configured to cause a tip of the locating member to extend beyond a distal end of the locating hole.

7. The under-mirror gouging device according to claim 6, further comprising a sealing plug, wherein the sealing plug blocks a proximal end of the positioning hole, a proximal end of the positioning member is capable of extending out of the sealing plug, and the elastic member is located between the positioning member and the sealing plug.

8. The under-the-mirror gouging device according to claim 7, wherein the gouging rod comprises a first section, a second section and a tip, the first section has a diameter smaller than that of the second section, the tip has a maximum diameter smaller than or equal to that of the second section, the elastic member is sleeved on the first section, one end of the elastic member abuts against the second section, and the other end of the elastic member abuts against the sealing plug.

9. The under-mirror shaving apparatus according to claim 5, wherein the maximum diameter of the tip of the positioning member is smaller than the aperture of the positioning hole, and the difference between the aperture of the positioning hole and the maximum diameter of the tip of the positioning member is 0.01mm to 0.03 mm.

10. Planing device, characterized in that it comprises, for example, a drive mechanism, and an under-mirror planing means according to any of claims 1 to 9, said drive mechanism being connected to said planing bar for driving the same in rotation.

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