CN210112741U

CN210112741U - Bone grinding drill

Info

Publication number: CN210112741U
Application number: CN201920403922.5U
Authority: CN
Inventors: 刘学新
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-02-25
Anticipated expiration: 2029-03-27
Also published as: WO2020192728A1

Abstract

The utility model discloses a grind bone drill, including electric drill and drilling rod, the drilling rod centre gripping is fixed in the one end of electric drill, its characterized in that: the drilling rod adopts the fluted drill, be fixed with the piece that cup joints that is used for the cover to establish the fluted drill on the electric drill, cup joint the piece and have one section sleeve pipe, the sheathed tube internal diameter adopts clearance fit with the external diameter of fluted drill, the fluted drill inserts the sleeve pipe, and the fluted drill bit stretches out from sheathed tube one end port. The bone drill is provided with the sleeve through the outer sleeve of the twist drill, so that the sleeve isolates the skin of the incision from the side wall of the twist drill, the abrasion of the twist drill to the skin incision is avoided, and the operation is more convenient.

Description

Bone grinding drill

Technical Field

The utility model relates to a medical instrument especially relates to a grind bone drill.

Background

The bone grinding drill is a common instrument used for face-lifting operations such as maxillofacial correction, zygomatic bone reduction, zygomatic arch reduction, nasal dorsum narrowing, hump nose correction, eyebrow arch reduction, chin shortening and the like. The common operation mode of the bone grinding drill is that a drill rod is inserted into a skin incision at a hidden position, and the bone is ground by utilizing the rotation cutting of the drill rod, so that the following problems exist in the operation process:

the drill rod of the bone grinding drill is easy to contact with the skin incision in the rotating process, so that the incision is easy to wear, and the skin incision is required to be pulled by other instruments, so that the contact is avoided; the rotation of the drill rod of the bone grinding drill needs to manually control the grinding depth, so that the drill bit of the drill rod is prevented from being screwed into the bone.

Application No. 201420319429The utility model relates to a bone ware is got to wicresoft, which comprises a sleeve, wear to establish the connecting rod in the sleeve and connect the abrasive drilling head at the preceding end of connecting rod, the connecting rod includes solid section and hollow section, the inside cavity that has the hollow body intercommunication with the hollow section of connecting rod in abrasive drilling head rear end, the last through-hole that has with the cavity intercommunication of abrasive drilling head, the hollow section of connecting rod is equipped with a plurality of slotted holes that communicate with the hollow body, be equipped with between sleeve and the connecting rod with the slotted hole enclose before the telescopic section of intaking, back bearing seal spare, telescopic section of intaking is equipped with the water inlet, form discharging channel between sleeve and the connecting rod in front bearing seal spare the place ahead, be equipped with the discharge gate with discharging channel intercommunication on the sleeve in front bearing seal spare the place ahead, be equipped with the bone bits. The minimally invasive bone extractor needs to be arranged_{The discharge channel realizes discharge}The clearance between connecting rod and the sleeve is great, and the connecting rod has hollow section, therefore telescopic size is great, and it is great to stretch into little incision degree of difficulty, and because the clearance is great, connecting rod pivoted stability is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a bone grinding drill. The bone grinding drill can avoid the situation that a drill rod selectively wears a skin incision and can avoid the situation that a drill bit of the drill rod is screwed into a bone, the operation is more convenient, and the stability of the rotation of the drill rod is high.

The utility model provides a technical scheme that above-mentioned problem adopted is:

the utility model provides a grind bone drill, includes electric drill and drilling rod, the drilling rod centre gripping is fixed in the one end of electric drill, its characterized in that: the drilling rod adopts the fluted drill, be fixed with the piece that cup joints that is used for the cover to establish the fluted drill on the electric drill, cup joint the piece and have one section sleeve pipe, the sheathed tube internal diameter adopts clearance fit with the external diameter of fluted drill, the fluted drill inserts the sleeve pipe, and the fluted drill bit stretches out from sheathed tube one end port.

Further, preferably, a cavity for storing debris is provided in the socket.

Further, as preferred, the socket piece is provided with a discharge hole.

Further, as preferred, be equipped with the cavity that is used for the storage piece in the cover member, the discharge gate is connected to the cavity.

Further, preferably, the discharge port is communicated to one end of an absorption pipe, and the other end of the absorption pipe is communicated to a negative pressure device.

Further, preferably, the one end port of the sleeve is disposed obliquely to the axis of the sleeve.

Compared with the prior art, the utility model, have following advantage and effect:

(1) the bone grinding drill is provided with the sleeve outside the twist drill, so that the sleeve can isolate the skin of the incision from the side wall of the twist drill, the abrasion of the twist drill on the skin incision is avoided, and the operation is more convenient;

(2) the drill bit edge part of the twist drill is used for grinding the bone, and a spiral channel is formed by the spiral groove and the inner wall of the sleeve to output chips, so that the chips can be discharged quickly;

(3) the bone is ground by using the cutting part of the drill bit of the twist drill, the rest parts of the twist drill are sleeved in the sleeve, the grinding depth of the twist drill is controlled, the twist drill cannot drill into the bone, and the operation safety is ensured;

(4) the sleeve does not rotate, so that the sleeve can swing to draw a skin incision, and the grinding position of a drill bit of the twist drill is changed, so that the grinding requirement in a wider range is met;

(5) the clearance fit is adopted to sheathed tube internal diameter and fluted drill's external diameter, and the clearance is less between cover intraductal wall and the fluted drill outer wall, not only is favorable to forming spiral helicine passageway, and the sleeve pipe helps the skew of restriction drilling rod, and drilling rod pivoted stability is higher.

Drawings

Fig. 1 is a schematic structural view of a bone grinding drill according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a bone grinding drill according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a second bone grinding drill according to an embodiment of the present invention.

FIG. 4 is a schematic view of the cross-sectional structure of the bone grinding drill for two persons in accordance with the embodiment of the present invention

Numbering in the figures: the electric drill 1, the twist drill 2, the spiral groove 21, the drill 22, the cutting edge 23, the socket 3, the sleeve 31, the port 311, the cavity 32, the discharge hole 33, the channel 4 and the absorption tube 5

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Example one

Referring to fig. 1-2, this embodiment grinds bone drill, including grinding bone drill, including electric drill 1 and drilling rod, the drilling rod centre gripping is fixed in the one end of electric drill 1, the drilling rod adopts fluted drill 2, be fixed with on the electric drill 1 and be used for the cover to establish the piece 3 that cup joints of fluted drill 2, cup joint 3 and have one section sleeve pipe 31, the internal diameter of sleeve pipe 31 and fluted drill 2's external diameter adopt clearance fit, fluted drill 2 inserts sleeve pipe 31, and fluted drill 2 drill bit 22 stretches out from the one end port of sleeve pipe 31. The socket 3 is provided with a discharge port 33. A cavity 32 for storing debris is arranged in the socket 3, and the discharge port 33 is connected to the cavity 32. The discharge port 33 is connected to one end of the absorption pipe 5, and the other end of the absorption pipe 5 is connected to a negative pressure device. The debris at the outlet 33 is sucked out by the negative pressure.

It should be noted that: electric drill 1 adopts current drill chuck to realize being fixed in on electric drill 1, because the drill chuck is the conventional structure of 1 trade of electric drill, non the utility model discloses a design point, this is not repeated.

The bone grinding drill has the following advantages:

(1) the bone grinding drill has the advantages that the sleeve 31 is sleeved outside the twist drill 2, so that the sleeve 31 isolates the skin of the incision from the side wall of the twist drill 2, the abrasion of the twist drill 2 to the skin incision is avoided, and the operation is more convenient;

(2) the edge part of the drill bit 22 of the twist drill 2 is used for grinding bones, and a spiral channel 4 is formed by the spiral groove 21 and the inner wall of the sleeve 31 to output chips, so that the chips can be discharged quickly;

(3) the bone is ground by utilizing the cutting part of the drill bit 22 of the twist drill 2, the rest parts of the twist drill 2 are sleeved in the sleeve 31, the grinding depth of the twist drill 2 is controlled, the twist drill 2 cannot drill into the bone, and the operation safety is ensured;

(4) because the sleeve 31 does not rotate, the sleeve 31 can swing to draw the skin incision, and the grinding position of the drill 22 of the twist drill 2 is changed to meet the grinding requirement in a wider range;

(5) the internal diameter of sleeve 31 and the external diameter of fluted drill 2 adopt clearance fit, and the clearance is less between sleeve 31 inner wall and the fluted drill 2 outer wall, not only is favorable to forming spiral helicine passageway 4, and sleeve 31 helps the skew of restriction drilling rod, and drilling rod pivoted stability is higher.

Example two

Referring to fig. 3-4, this embodiment grinds bone drill, including grinding bone drill, including electric drill 1 and drilling rod, the drilling rod centre gripping is fixed in the one end of electric drill 1, the drilling rod adopts fluted drill 2, be fixed with on the electric drill 1 and be used for the cover to establish the piece 3 that cup joints of fluted drill 2, cup joint 3 and have one section sleeve pipe 31, the internal diameter of sleeve pipe 31 and fluted drill 2's external diameter adopt clearance fit, fluted drill 2 inserts sleeve pipe 31, and fluted drill 2 drill bit 22 stretches out from the one end port of sleeve pipe 31. The socket 3 is provided with a discharge port 33. A cavity 32 for storing debris is arranged in the socket 3, and the discharge port 33 is connected to the cavity 32. The discharge port 33 is connected to one end of the absorption pipe 5, and the other end of the absorption pipe 5 is connected to a negative pressure device. The debris at the outlet 33 is sucked out by the negative pressure. The port 311 at one end of the sleeve 31 is disposed obliquely to the axis of the sleeve 31. With this structure, the cutting edges 23 on the side edges of the twist drill 2 are exposed, and the cutting edges 23 on the side edges of the twist drill can be used for oblique grinding.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a grind bone drill, includes electric drill and drilling rod, the drilling rod centre gripping is fixed in the one end of electric drill, its characterized in that: the drilling rod adopts the fluted drill, be fixed with the piece that cup joints that is used for the cover to establish the fluted drill on the electric drill, cup joint the piece and have one section sleeve pipe, the sheathed tube internal diameter adopts clearance fit with the external diameter of fluted drill, the fluted drill inserts the sleeve pipe, and the fluted drill bit stretches out from sheathed tube one end port.

2. The bone burr of claim 1, wherein: a cavity for storing debris is arranged in the socket.

3. The bone burr of claim 1, wherein: the sleeve joint piece is provided with a discharge hole.

4. The bone burr of claim 3, wherein: the socket piece is internally provided with a cavity for storing scraps, and the discharge port is connected to the cavity.

5. The bone burr of claim 3 or 4, wherein: the discharge port is communicated to one end of the absorption pipe, and the other end of the absorption pipe is communicated to the negative pressure equipment.

6. The bone burr of claim 1, wherein: one end port of the sleeve is obliquely arranged relative to the axis of the sleeve.