CN201244095Y

CN201244095Y - Bone expanding drill for dentistry

Info

Publication number: CN201244095Y
Application number: CNU2008201093319U
Authority: CN
Inventors: 张正宜
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-18
Filing date: 2008-07-18
Publication date: 2009-05-27
Anticipated expiration: 2018-07-18

Abstract

The utility model relates to a dental bone reaming bores, its characterized in that includes: the thread drilling machine comprises a sleeve part, wherein a tapered thread drilling bit gradually reducing downwards is arranged below the sleeve part, and at least more than one plane is arranged on the sleeve part. Adopt the utility model discloses the operation of expanding bone and implanting tooth that goes on, the wound is small, can reduce the painful sense of swelling after the art, shorten the time of implanting the postoperative healing, and can avoid arousing the dizzy symptom of inner ear postoperative, reduce the nervous sense in the patient's operation, fear feels, prevent that the patient from taking place apoplexy's chance because of the blood pressure risees in the operation, still can prevent simultaneously because of beaing the face fracture that the strength too big takes place, the cracked probability of bone, and reduce the expenditure of bone meal bone supplementing material, it is high to reach patient's acceptance, and doctor's easy and simple to handle efficiency.

Description

Dental expands bone drill

Technical field

This utility model relates to dental and expands bone drill, is meant a kind of being used in serious atrophy phenomenon, especially the alveolar bone width deficiency of alveolar bone generation especially, and the conventional body of manually planting is performed the operation in the time of can't doing, and needs to adopt the employed dental of expansion bone to expand bone drill.

Background technology

The prosperity of modern science and technology makes dentist circle develop " manually planting tooth " technology, with effective problem of improving traditional artificial tooth that the agomphosis patient worn.The at present conventional tooth of manually planting needs through step once: cut an opening at the agomphosis place, enlarge the screwed hole of this hole, the tapping of usefulness threaded bore and the identical thread of artificial tooth root with little bit drills one aperture, with several ascending bit drills ... Deng, will manually plant body at last and revolve to insert to finish in the screwed hole and manually plant tooth.

Yet, this tooth of manually planting is to be applicable to that alveolar bone just often uses, when serious atrophy phenomenon takes place in alveolar bone, as shown in Figure 1, the area of plane of alveolar bone 10 top layer faces is not enough to allow manually plants body and revolves and put, cause and to perform the operation according to the tooth step of manually planting of routine, at this moment, just can do the expansion osseous surgery to this agomphosis place, as shown in Figure 2, expanding osseous surgery is to do fixed point at the agomphosis place earlier, reuse milling cutter turnning and milling goes out an elongated cuts 20, then, get ascending several chisels alignment cuts 20 in regular turn again, the mode of beaing chisel with hammer expands osseous surgery.Therefore yet the bone hole 30 of this expansion osseous surgery gained is generally all many greatly than manually planting body 40, as shown in Figure 3, need carry out tapping, and will manually plant after body 40 inserts in the bone hole 30, is manually planting the process of body 40 with bone hole 30 catch cropping benefit bone with bone meal.

But, thisly beat the expansion osseous surgery that " cutter strikes mode " of chisel carries out with hammer, the wound of its incision is big, and the sense of postoperative swelling pain is also more obvious, moreover, when manually planting body when inserting between the bone hole, its space is big, needs to use a large amount of bone meal to mend bone, causes material disbursement height, simultaneously also big because of the bone hole, make the postoperative healing slow; Moreover because of the strength of beaing wayward; the accident of face fracture or bone fracture takes place in regular meeting because of overexertion; and this sound that beats; regular meeting causes the dizzy symptom of internal ear postoperative again; or make the patient in operation, produce anxiety and fear, severe patient even the phenomenon of apoplexy can take place because of hypertension in operation.

Summary of the invention

At the problems referred to above, main purpose of the present utility model is to provide a kind of dental to expand bone drill, can reach patient's acceptance height, and doctor's effect easy and simple to handle.

For achieving the above object, a kind of dental provided by the utility model expands bone drill, and it is characterized in that comprising: fit portion, described fit subordinate side are provided with the screw thread drill bit of the taper of convergent down, and described fit portion is provided with the plane more than at least one.

The ring periphery of described fit portion is provided with a rubber gum cover.

The depth of threat of described screw thread drill bit is set to the identical depth.

The depth of threat of described screw thread drill bit be set to the big or small depth in regular turn arrangement pitch around form.

The end of described screw thread drill bit is set to the sharp edge type attitude.

Adopt technique scheme, this utility model is owing to adopt the screw thread drill bit of the taper of convergent down, makes need not carry out the tapping step again after expanding osseous surgery, just can revolve and inserts between the bone hole manually planting body, can reduce operation process.And this utility model is provided with plane more than at least one in the fit portion above the bone drill of expanding, and is provided with a rubber gum cover along the ring periphery of fit portion, can supply assistive device firmly overlap closing operation, and the idle phenomenon of assistive device can not take place.Therefore, the expansion bone dental implant surgical that adopts this utility model to carry out, wound is small, can reduce the swelling pain sense of postoperative, shorten the time of healing behind the dental implant surgical, and can avoid causing the dizzy symptom of internal ear postoperative, reduce anxiety sense, fear in the corrective surgery, prevent that the patient from the chance of apoplexy taking place because of hypertension in operation, also can prevent simultaneously because of beaing the probability of the excessive face fracture that takes place of strength, bone fracture, and reduce the expenditure that bone meal is mended bone material, reach patient's acceptance height, and doctor's goal of the invention easy and simple to handle.

Description of drawings

Fig. 1 is the sketch map of the osteogenetic serious atrophy phenomenon of teeth groove;

Fig. 2 is known preliminary schematic top plan view of making to expand osseous surgery with chisel;

Fig. 3 is known completion status schematic top plan view of making to expand osseous surgery with chisel;

Fig. 4 is the plane graph of the small-bore expansion bone drill of this utility model;

Fig. 5 is the schematic top plan view that adopts the small-bore expansion bone drill of this utility model to expand bone;

Fig. 6 is the plane graph that this utility model heavy caliber expands bone drill;

Fig. 7 adopts this utility model heavy caliber to expand the schematic top plan view that bone drill expands bone;

Fig. 8 finishes the sketch map of planting tooth after adopting this utility model to expand bone;

Fig. 9 adopts this utility model to finish the schematic top plan view that expands osseous surgery.

The specific embodiment

In order to describe structure of the present utility model, characteristics and effect in detail, existing following preferred embodiment of act and conjunction with figs. are described as follows.

As Fig. 4, shown in Figure 6, for a kind of dental provided by the utility model expands bone drill, expand bone drill 1A, 1B below and be provided with the screw thread drill bit 11 of the taper of convergent down, the end of screw thread drill bit 11 is set to the sharp edge type attitude, and the fit portion 12 above bone drill 1A, the 1B of expanding is provided with the plane more than at least one, and along the ring periphery of fit portion 12 a rubber gum cover 13 is set.

With expansion bone drill 1A of the present utility model, 1B does the expansion osseous surgery, be to do fixed point at the agomphosis place earlier, reuse milling cutter turnning and milling goes out a thin short otch 2, as shown in Figure 5, then, get several ascending expansion bone drill 1A again, 1B, utilize assistive device (as spanner) in regular turn otch 2 to be made to expand the expansion osseous surgery that bone is held concurrently tapping in rotary mode, otch 2 just is extended to the bone hole 3B (as shown in Figure 7) of required wide cut gradually by less bone hole 3A, can directly revolve and insert among the 3B of bone hole (as Fig. 8 this moment manually planting body 4, shown in Figure 9), at last, again the program that bone meal is mended bone is done in the little space of manually planting 3 in body 4 and bone hole.

The screw thread drill bit 11 of expansion bone drill 1B of the present utility model is slightly littler or identical than the external diameter of manually planting body 4, is beneficial to manually plant body 4 and revolves and preferable locking is arranged in conjunction with effect after inserting.

In addition, the screw thread drill bit 11 of expansion bone drill 1B of the present utility model can be set to the depth of threat (present embodiment just is set to the depth of threat of the identical depth) of the identical depth, also can depth of threat be set to the big or small depth in regular turn arrangement pitch around the form of (being that the depth of threat size depth is alternate).

The rubber gum cover 13 that this utility model is provided with, can allow assistive device (as spanner) firmly be sleeved on and expand on bone drill 1A, the 1B, prevent to expand bone drill 1A, 1B when alveolar bone 5 is done to expand osseous surgeries, because of being subjected to gravitational action of gravity, and cause expanding the danger that bone drill 1A, 1B come off.

Adopt expansion bone drill of the present utility model to do the expansion osseous surgery and have following advantage:

1, expands bone drill and have the effect that expands bone and tapping concurrently, need not to pass through again the step of tapping.

2, only need mill out chopped mouthful, wound is small, can reduce the swelling pain sense of postoperative.

3, adopt the spanner rotation to beat, can avoid causing the dizzy symptom of inner ear postoperative.

4, adopt the spanner rotation to beat, reduce tension, fear in the corrective surgery, prevent that the patient from existing In the operation because blood pressure raises the chance of apoplexy takes place.

5, adopt the spanner rotation to beat, can prevent because beaing excessive face fracture, the bone that takes place of strength The probability of fracture.

6, only need to plant the tooth place in the part and do the expansion bone, can reduce the expenditure that bone meal is mended bone material, also can shorten and plant tooth The time of healing after the operation.

Claims

1, a kind of dental expands bone drill, and it is characterized in that comprising: fit portion, described fit subordinate side are provided with the screw thread drill bit of the taper of convergent down, and described fit portion is provided with the plane more than at least one.

2, dental as claimed in claim 1 expands bone drill, it is characterized in that: the ring periphery of described fit portion is provided with a rubber gum cover.

3, dental as claimed in claim 1 expands bone drill, and it is characterized in that: the depth of threat of described screw thread drill bit is set to the identical depth.

4, dental as claimed in claim 1 expands bone drill, it is characterized in that: the depth of threat of described screw thread drill bit be set to the big or small depth in regular turn arrangement pitch around form.

5, dental as claimed in claim 1 expands bone drill, and it is characterized in that: the end of described screw thread drill bit is set to the sharp edge type attitude.