CN209826865U - Bone-collecting drill set - Google Patents

Abstract

The utility model discloses a bone collection bores suit, its characterized in that: including an at least collection bone drill, collection bone drill include the drillstock and set up the hexagonal drill bit of drillstock tip, be equipped with the cutting edge on every arris of hexagonal drill bit, each arris extends along drill bit axial spiral, and forms a collection bone groove between adjacent two arris. The utility model discloses simple structure, convenient to use is provided with the arris that bores that hexagonal drill bit and spiral extend, can avoid collecting and be washed away at bone groove bone meal of collection, increases the bone meal volume of collecting.

Description

Bone-collecting drill set

Technical Field

The utility model relates to the technical field of medical equipment, specifically speaking relates to a bone drill suit.

Background

The autologous bone graft is the best material for the current bone graft and is widely applied in the field of oral implantation. Can effectively improve bone defect. The application of the ring bone can most effectively control the bone grafting amount, reduce the trauma, implant the implant synchronously, fix the bone graft at the same time, the curative effect is reliable and is accepted clinically, and the effective, reliable and standard extraction of the ring bone is still the urgent clinical requirement.

The annular bone taking in the dental implant implanting technology is an operation method initiated from the academic implanting of the first-line dental implant brand in developed countries in Europe and America, and is based on the technology generated under the condition that the alveolar bone absorbs serious alveolar bone vertical height and is seriously insufficient. Other prior art trephines such as the european ankylos and korean tencel have two functions: 1. collecting and tidying the bone into broken bone after taking the bone; 2. taking the ring bone as cortical bone increment. The annular bone taking tool with the function of the 2 nd function can not realize the accurate concentric function of the center of the inner ring and the center of the outer ring, the incomplete bone taking and the difficulty in bone taking, so that the phenomena of non-concentric inner wall and outer wall, uneven thickness of the bone wall, incomplete bone taking and the like of the annular bone can occur.

The existing bone taking drill needle is an annular bone taking drill, and for example, Chinese patent document with publication number of CN202426630U discloses an annular bone taking device which comprises a long annular hollow drill body, wherein the front end of the drill body is provided with saw bits, and the tail end part of the drill body is provided with an air guide hole and a lock hole; the front end of the connecting rod is positioned in an inner cavity at the tail part of the drill body, a lock hole channel corresponding to a lock hole is arranged on the connecting rod, the front end of the connecting rod is fixed with the drill body through a lock nail, and the tail end of the connecting rod is provided with a connecting clamp positioned with an electric drill for orthopedics department. The drill point forms a cylindrical bone block at a corresponding bone taking part, then is ground by a corresponding bone grinding instrument in vitro, and the ground bone chips and the corresponding artificial bone substitute material are mixed and placed in a bone defect area, so that the effect of bone increment of the bone defect area is realized.

The existing bone drill has the following defects: in the drilling process, bone meal drilled by the bone drill is easy to be washed away by cooling water, so that the collected bone meal is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bone collection bores suit, simple structure, convenient to use is provided with the arris of boring that hexagonal drill bit and spiral extend, can avoid collecting and is washed away at bone groove bone meal of bone collection, increases the bone meal volume of collecting.

In order to achieve the above object, the present invention adopts the following specific technical solutions:

the utility model provides a bone collection bores suit, includes at least one bone collection bores, bone collection bores including the drill handle with set up the hexagonal drill bit of drill handle tip, be equipped with the cutting edge on every arris of hexagonal drill bit, each arris is followed drill bit axial spiral and is extended, and forms bone collection groove between adjacent two arris.

Among this technical scheme, will get the hexagonal prism type that the bone drill set up to the spiral extends, the purpose is in order to reduce that existing quadrangular drill or traditional fluted drill can't effectively collect autologous bone fragment when cutting the bone under the water-cooling state, cause the bone fragment to run off. The bone collecting drill has the advantages that the cutting force is realized when the hexagonal cutting edge part of the bone collecting drill rotates in the same direction along the spiral, the reverse rotation does not have the cutting effect, the design of slightly rotating is adopted, the bone chips cut by the drill point can be borne, and the bone powder loss in the water cooling state is prevented. Whole device is easy and simple to handle, need not external grinding, directly collects the bone bits, and the wound is little, has avoided traditional getting bone trephine to get the bone after need with the osteotome to take off the bone piece from supplying the district, reduces vibrations and the wound that patient received, reduces the probability of fracture when the bone piece takes out.

Preferably, the bone collecting drill set further comprises a pilot drill, and the pilot drill comprises a first drill handle and a ball-shaped drill bit arranged at the end of the first drill handle.

In the technical scheme, the position where the bone needs to be taken is positioned through the pilot drill, the bone taking area is determined, and the follow-up bone taking drill is guided to collect bone fragments.

Preferably, the bone collecting drill comprises a grade I bone collecting drill and a grade II bone collecting drill, the grade I bone collecting drill and the grade II bone collecting drill are provided with drill handles with equal length, and the diameter of a hexagonal drill bit of the grade I bone collecting drill is smaller than that of the hexagonal drill bit of the grade II bone collecting drill.

The bone collecting drill in the technical scheme is divided into two stages, the size of a drill bit of the I-stage bone collecting drill is smaller than that of a drill bit of the II-stage bone collecting drill, the I-stage bone collecting drill and the II-stage bone collecting drill are sequentially adopted to take bones, and resistance of taking the bones at a single time is reduced.

Preferably, the diameter of the hexagonal drill of the bone collecting drill is gradually increased from the end of the drill to the joint of the drill handle.

Preferably, the diameter of the drill bit end of the I-grade bone collecting drill is 2.5mm, and the diameter of the drill bit at the joint of the drill handle is 3 mm;

the diameter of the end part of a drill bit of the II-level bone collecting drill is 4.5mm, and the diameter of the drill bit at the joint of the drill handle is 5.5 mm.

The drill bit among this technical scheme forms the hexagonal pyramid post, makes things convenient for the formation of bone bits, upwards has enlarged bone collection groove volume gradually, can collect the bone bits by the at utmost. The gradient drill point is adopted to take the bone, so that the blockage of the drill point caused by the fact that the bone block or the bone chips are too large due to the fact that the bone is directly taken by the II-level bone collecting drill can be prevented, and the loss of the bone in the bone taking process is reduced. Get the bone for traditional trephine, reduced the damage of getting the bone process, bone efficiency is got in the increase, can reduce in addition external process of grinding cubic bone into bone fragment, and the cubic bone that directly will get the bone position is smashed and is become autologous bone fragment, reduces the process of grinding, improves and gets bone efficiency, does benefit to developing of later stage guide bone regeneration operation.

Preferably, the hexagonal drill bit is provided with an annular stop platform at the connection with the drill shank.

The stopping platform has the following functions: 1. blind operation is realized in an area with poor operation visual field, the drilling depth of the drill point is effectively limited, and important anatomical structures such as deep vascular nerves are prevented from being damaged; 2. avoid being used for the cooling water of cooling to directly wash the bone bits of collecting in the hexagonal sword portion, cause the loss of bone bits, the locking platform is the metal simultaneously, and thermal conductivity is good, does not influence the water-cooling of cooling water to drill point cutting edge portion, prevents to get the bone and bores the burn that produces the heat too much and cause the collection bone bits at high-speed rotatory in-process.

Preferably, the stop platform diameter is greater than the bit diameter at the connection of the hex bit and the drill shank.

Preferably, the drill handle and the hexagonal drill bit are integrally machined.

Preferably, the included angle between two adjacent edges of the hexagonal drill bit is 60 degrees.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a collection bone bores suit structure and simplifies, and manufacturing cost reduces, and clinical application is convenient, need not professional training, only needs to imitate conventional planting in confession bone area and be equipped with the hole operation and can effectively collect the bone bits, easy operation, and collection bone is respond well.

Drawings

Fig. 1 is a schematic structural diagram of a pilot drill according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a class i bone collecting drill according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a level ii bone collecting drill according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a hexagonal drill according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described below with reference to the following embodiments and accompanying drawings.

Examples

Referring to fig. 1 to 4, the bone collecting drill set of the present embodiment includes a pilot drill 100, a first-stage bone collecting drill 200, and a second-stage bone collecting drill 300.

The pilot drill 100 shown in fig. 1 includes a drill shank 101 and a ball drill 102 disposed at an end of the drill shank 101, and a conical drill tip 103 is connected to a lower portion of the ball drill 102.

In this embodiment, the length of the shank 101 is 27mm, the diameter of the ball drill 102 is 2mm, and the height of the conical tip 103 is 1 mm.

The class i bone drill 200 shown in fig. 2 includes a drill shank 201 and a hex bit 202 disposed at an end of the drill shank 201. The cross-sectional view of the hexagonal drill 202 is shown in fig. 4, the edge of each ridge 401 is a cutting edge, each ridge 401 spirally extends along the axial direction of the drill, and a bone collection groove 402 is formed between two adjacent ridges.

The drill handle 201 of the grade I bone drill 200 and the hexagonal drill 202 are integrally machined, and the included angle between two adjacent edges of the hexagonal drill 202 is 60 degrees.

In this embodiment, the length of the drill handle 201 of the grade I bone collecting drill 200 is 24mm, and the length of the hexagonal drill 202 is 5 mm. The diameter of the bit end 205 is 2.5mm and the bit diameter at the shank joint 204 is 3 mm.

The hexagonal drill 202 is provided with an annular stop platform 203 at the connection with the drill shank 201, the height of the stop platform 203 is 1mm, the diameter of the stop platform is slightly larger than the diameter of the drill at the drill shank connection 204, and the diameter of the stop platform is usually 1mm, and particularly 4mm larger than the diameter of the drill at the drill shank connection 204.

The level ii bone gathering drill 300 shown in fig. 3 includes a drill shank 301 and a hexagonal drill 302 disposed at an end of the drill shank 301. The cross-sectional view of the hexagonal-rib drill 302 is shown in fig. 4, the edge of each rib 401 is a cutting edge, each rib 401 spirally extends along the axial direction of the drill, and a bone collection groove 402 is formed between two adjacent ribs.

Similarly, the drill handle 301 and the hexagonal drill 302 of the level ii bone drill 300 are integrally machined, and the included angle between two adjacent edges of the hexagonal drill 302 is 60 °.

In this embodiment, the length of the drill handle 301 of the level II bone collecting drill 300 is 24mm, and the length of the hexagonal drill 302 is 5 mm. The diameter of the bit end 305 is 4.5mm and the bit diameter at the shank joint 304 is 5.5 mm.

In the class ii bone drill 300, the hexagonal drill 302 is provided with an annular stop platform 303 at the junction with the drill shank 301, the stop platform 303 having a height of 1mm and a diameter slightly larger than the drill diameter at the drill shank junction 304, typically 1mm, in particular 6.5mm larger than the drill diameter at the drill shank junction 304.

The working process of the example is as follows: firstly, installing the pilot drill 100 on a rotary driving device to form a drill point positioning hole on a bone; then, replacing the pilot drill 100 with an I-level bone collecting drill 200, drilling a hole downwards at the position of the drill point positioning hole, and collecting the drilled bone powder until the stop platform 203 stops drilling continuously; and finally, replacing the I-grade bone collecting drill 200 with the II-grade bone collecting drill 300, continuously drilling the deep hole formed by the I-grade bone collecting drill 200, collecting the drilled bone powder at the same time until the stop platform 303 abuts against the surface of the bone, and withdrawing the II-grade bone collecting drill 300.

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 (8)

1. The utility model provides a bone collection bores suit which characterized in that: the bone collecting drill comprises a drill handle and a hexagonal drill bit arranged at the end part of the drill handle, wherein each edge of the hexagonal drill bit is provided with a cutting edge, each edge spirally extends along the axial direction of the drill bit, and a bone collecting groove is formed between two adjacent edges;

the bone collecting drill comprises a first-level bone collecting drill and a second-level bone collecting drill, the first-level bone collecting drill and the second-level bone collecting drill are provided with drill handles with equal length, and the diameter of a hexagonal drill of the first-level bone collecting drill is smaller than that of a hexagonal drill of the second-level bone collecting drill.

2. The bone drill kit of claim 1, wherein: the bone collecting drill set further comprises a pilot drill, and the pilot drill comprises a first drill handle and a spherical drill bit arranged at the end part of the first drill handle.

3. The bone drill kit of claim 1, wherein: the diameter of the hexagonal drill of the bone collecting drill is gradually increased from the end of the drill to the joint of the drill handle.

4. The bone drill kit of claim 3, wherein: the diameter of the end part of a drill bit of the I-level bone collecting drill is 2.5mm, and the diameter of the drill bit at the connection part of the drill handle is 3 mm;

the diameter of the end part of a drill bit of the II-level bone collecting drill is 4.5mm, and the diameter of the drill bit at the joint of the drill handle is 5.5 mm.

5. The bone drill kit of claim 1, wherein: the hexagonal drill bit is provided with an annular stop platform at the joint with the drill handle.

6. The bone drill kit of claim 5, wherein: the diameter of the stop platform is larger than that of the drill bit at the joint of the hexagonal drill bit and the drill handle.

7. The bone drill kit of claim 1, wherein: the drill handle and the hexagonal drill bit are integrally processed.

8. The bone drill kit of claim 1, wherein: the included angle between two adjacent edges of the hexagonal drill bit is 60 degrees.