CN204484358U - Implantation body's central bolt fracture taking-up instrument - Google Patents

Implantation body's central bolt fracture taking-up instrument Download PDF

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Publication number
CN204484358U
CN204484358U CN201520029534.7U CN201520029534U CN204484358U CN 204484358 U CN204484358 U CN 204484358U CN 201520029534 U CN201520029534 U CN 201520029534U CN 204484358 U CN204484358 U CN 204484358U
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CN
China
Prior art keywords
cutter
fracture
implantation body
central bolt
instrument
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520029534.7U
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Chinese (zh)
Inventor
蔡俊江
李闪
张久文
彭鹏
孙财跃
张静莹
张晓琳
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Dalian Sansheng Science & Technology Development Co Ltd
Original Assignee
Dalian Sansheng Science & Technology Development Co Ltd
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Publication date
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Priority to CN201520029534.7U priority Critical patent/CN204484358U/en
Application granted granted Critical
Publication of CN204484358U publication Critical patent/CN204484358U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

This utility model provides a kind of implantation body central bolt fracture taking-up instrument, for taking out the fracture screw in implantation body, comprise removable positioning protective sleeve and be located at the cutter in positioning protective sleeve, cutter comprises the first cutter and the second cutter, first cutter is fluted drill, and described second cutter is cutter tooth rotation direction with the external thread rotary of described fracture screw to contrary screw tap; This utility model can take out the central bolt of fracture easily when not mobile planting body, just farthest can reduce misery and the loss of patient, avoid human and material resources, financial resources and leeway, reduce doctor-patient dispute, be also conducive to carrying out of Dental Implant technology.

Description

Implantation body's central bolt fracture taking-up instrument
Technical field
This utility model relates to dentistry field of planting, particularly a kind of implantation body central bolt fracture taking-up instrument.
Background technology
Dentistry planting technology, through development for a long time, is approved more and more widely.Such as, but because of various reasons, incorrect tooth custom, frequently chews hard object or implantation body's material and is in the fracture that fatigue state can cause implant system.Investigation statistics, implant system breaking in the oral cavity 80% is the fracture of central bolt.Research shows, gets rid of the factor impact of material internal defect, and the stress that the reason of fracture mainly causes at the screw thread end face place of bolt is concentrated, and stress is excessive.
Because Bolt sizes is too small, the plane of disruption flushes with implantation body female thread, and conventional method is difficult to take out.Now common method is taken out at implantation body's entirety, and then plant, and this not only causes very macrolesion and misery to patient, and needs again to wait for that the time of some months is integrated to make implantation body and alveolar bone.
If at this moment there is a kind of tool and method can take out the central bolt of fracture easily when not mobile planting body, just farthest can reduce misery and the loss of patient, avoid human and material resources, financial resources and leeway, reduce doctor-patient dispute, be also conducive to carrying out of Dental Implant technology.
Utility model content
The technical problem that [1] will solve
The technical problems to be solved in the utility model is to provide a kind of central bolt that can take out fracture when not mobile planting body easily, and farthest reduces the misery of patient and implantation body's central bolt fracture taking-up instrument of loss.
The technical scheme of [2] dealing with problems
This utility model provides a kind of implantation body central bolt fracture taking-up instrument, for taking out the fracture screw 1a in implantation body 1, it comprises positioning protective sleeve 2 and cutter, the lower end of described positioning protective sleeve 2 be provided with can be inserted in described implantation body 1 upper surface shoulder hole in and the positioning boss 2a positioned, the upper surface center of described positioning protective sleeve 2 offers cutter holes, described cutter holes runs through described positioning boss 2a downwards, described cutter is removably set in described cutter holes, and the positioning step 2c be provided with in described cutter holes for carrying out axial location to described cutter, described cutter comprises the first cutter 3a and the second cutter 3b, and described first cutter is fluted drill, and described second cutter is cutter tooth rotation direction with the external thread rotary of described fracture screw 1a to contrary screw tap.
Further, described cutter comprises connecting axle and is fixed on the cutter body of described connecting axle end, and described connecting bushing is located in described cutter holes and end face contacts with described positioning step 2c; Described cutter body is fluted drill or cutter tooth rotation direction with the external thread rotary of described fracture screw 1a to contrary screw tap.
Further, described positioning step 2c is greater than the length of described cutter body to the distance of described fracture screw head.
Further, the distance between the outer wall of described connecting axle and the inwall of described cutter holes is greater than 0mm and is less than or equal to 0.5mm.
Further, described positioning protective sleeve 2 comprises and connecting successively and the Handheld Division 21 of coaxial setting, joint pin 22 and positioning boss 2a, and the lower end of described Handheld Division 21 extends radially outwardly and forms stopper section 21a, and the sidewall of described Handheld Division 21 is provided with anti-slip veins.
Further, described cutter holes is the shoulder hole that upper end is large, lower end is little.
Meanwhile, application this utility model, to the removing method of implantation body's central bolt fracture, comprises the following steps:
A, sterilization, carry out high temperature or alcohol disinfecting to positioning protective sleeve and cutter;
B, location, be sheathed with the positioning boss of positioning protective sleeve 2 lower end in the shoulder hole in implantation body 1, realize the location and installation between protective sleeve 2 and implantation body 1;
C, boring, be inserted in the cutter with fluted drill in the cutter holes of positioning protective sleeve 2, and hole to the fracture screw in described implantation body 1 with fluted drill, takes out fluted drill after completing boring;
D, tapping, be inserted in the cutter with screw tap in the cutter holes of positioning protective sleeve 2, and carry out tapping with screw tap to the hole got out in step C;
E, taking-up screw, cutter continues to rotate after completing tapping, fracture screw and cutter is rotated simultaneously, until taken out from implantation body by fracture screw;
F, to complete, take out screw tap and positioning protective sleeve, complete whole removal process.
Further, in step C, with fluted drill, described fracture screw is holed, until cutter connecting axle contacts with described positioning step.
Further, in step C, the drilling depth on fracture screw is more than or equal to 2mm.
Further, in step F, the positioning protective sleeve taken out and cutter are carried out disinfection.
[3] beneficial effect
This utility model implantation body central bolt fracture taking-up instrument, the central bolt of fracture can be taken out easily when not mobile planting body, just farthest can reduce misery and the loss of patient, avoid human and material resources, financial resources and leeway, reduce doctor-patient dispute, be also conducive to carrying out of Dental Implant technology.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model implantation body central bolt fracture taking-up instrument;
Fig. 2 is the structural representation of the positioning protective sleeve of this utility model implantation body central bolt fracture taking-up instrument;
Fig. 3 is the sectional view of the positioning protective sleeve of this utility model implantation body central bolt fracture taking-up instrument;
Fig. 4-1 is the positioning step figure that application this utility model carries out implantation body's central bolt fracture removing method;
Fig. 4-2 is the drill process figure that application this utility model carries out implantation body's central bolt fracture removing method;
Fig. 4-3 is the tapping block diagram that application this utility model carries out implantation body's central bolt fracture removing method;
Fig. 4-4 is the break bolt taking-up figure that application this utility model carries out implantation body's central bolt fracture removing method;
What Fig. 4-5 carried out implantation body's central bolt fracture removing method for application this utility model completes schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, introduce this utility model embodiment in detail.
Consult Fig. 1 to Fig. 3, this utility model provides a kind of implantation body central bolt fracture taking-up instrument, and for taking out the fracture screw 1a in implantation body 1, it comprises positioning protective sleeve 2 and cutter;
Positioning protective sleeve 2 comprises and connecting successively and the Handheld Division 21 of coaxial setting, joint pin 22 and positioning boss 2a, and above-mentioned Handheld Division 21, joint pin 22 and positioning boss 2a are cylinder; The lower end of Handheld Division 21 extends radially outwardly and forms stopper section 21a, is circumferentially with anti-slip veins at the sidewall of Handheld Division 21, and this anti-slip veins stricture of vagina is protruding or groove, and for anti-skidding, this Handheld Division is used for hands and holds; Carry out location and installation in the shoulder hole that positioning boss can be inserted in implantation body 1 upper surface, this positioning protective sleeve determines the running accuracy of cutter, therefore the axiality of positioning boss and fracture screw shoulder hole will be ensured, in the present embodiment, positioning boss is less than or equal to Φ 0.1mm with the coaxiality deviation of fracture screw shoulder hole; Cutter holes is offered at the upper surface center of positioning protective sleeve 2, in the present embodiment, this cutter holes is the shoulder hole that upper end is large, lower end is little, this cutter holes runs through positioning boss 2a downwards, cutter is removably set in cutter holes, is provided with the positioning step 2c for carrying out axial location to cutter in cutter holes simultaneously;
Above-mentioned cutter comprises the first cutter 3a and the second cutter 3b, and the first cutter is fluted drill, and the second cutter is cutter tooth rotation direction with the external thread rotary of fracture screw 1a to contrary screw tap.
Below structure explanation is carried out to the structure of cutter:
Cutter comprises connecting axle and is fixed on the cutter body of connecting axle end, and connecting bushing is located in cutter holes and end face contacts with positioning step 2c; In order to improve precision, the distance between the outer wall of connecting axle and the inwall of cutter holes is greater than 0mm and is less than or equal to 0.5mm; Be fluted drill or cutter tooth rotation direction with the external thread rotary of fracture screw 1a to contrary screw tap at cutter body, positioning step 2c is greater than the length of cutter body to the distance of fracture screw head simultaneously, and namely fluted drill can not to fracture screw holes drilled through, can only drilling blind hole.
Meanwhile, application this utility model realizes the removing method of implantation body's central bolt fracture, and consult Fig. 4-1 to 4-5, it uses above-mentioned taking-up instrument, and comprises the following steps:
A, sterilization, carry out high temperature or alcohol disinfecting to positioning protective sleeve and cutter, avoid antibacterial to enter oral cavity;
B, location, be sheathed with the positioning boss of positioning protective sleeve 2 lower end in the stepped hole in implantation body 1, makes protective sleeve 2 location and installation in implantation body 1; This installation accuracy determines boring and the tapping precision of cutter, therefore will ensure the axiality between the shoulder hole in itself and implantation body;
C, boring, be inserted in the cutter with fluted drill in the cutter holes of positioning protective sleeve 2, and hole (blind hole) to the fracture screw in implantation body 1 with fluted drill, until cutter connecting axle contacts with positioning step, takes out fluted drill after completing boring; Because positioning step 2c is greater than the length of cutter body to the distance of fracture screw head, therefore, the boring on fracture screw is blind hole; In order to improve grasp, in the present embodiment, the degree of depth is more than or equal to 2mm;
D, tapping, be inserted in the cutter with screw tap in the cutter holes of positioning protective sleeve 2, and carry out tapping with screw tap to the hole got out in step C;
E, taking-up screw, cutter continues to rotate after completing tapping, namely when the head of screw tap contacts with the bottom surface in hole, now between screw tap and break bolt, nothing relatively rotates, fracture screw and cutter are rotated simultaneously, because the cutter tooth rotation direction of screw tap and the external thread rotary of fracture screw 1a are to contrary, after completing tapping, screw tap is rotated further until taken out from implantation body by fracture screw;
F, to complete, take out the screw tap together with fracture screw and positioning protective sleeve, complete whole removal process, and complete aftermath, comprise and fracture screw is taken out from screw tap, by the chip sucking-off in implantation body, and cleanse and disinfect is carried out to implantation body; Cleaning and sterilizing is carried out to positioning protective sleeve and cutter simultaneously, use in order to next time.
This utility model implantation body central bolt fracture taking-up instrument, the central bolt of fracture can be taken out easily when not mobile planting body, just farthest can reduce misery and the loss of patient, avoid human and material resources, financial resources and leeway, reduce doctor-patient dispute, be also conducive to carrying out of Dental Implant technology.

Claims (6)

1. implantation body's central bolt fracture taking-up instrument, for taking out the fracture screw (1a) in implantation body (1), it is characterized in that: comprise positioning protective sleeve (2) and cutter, the lower end of described positioning protective sleeve (2) be provided with can be inserted in described implantation body (1) upper surface shoulder hole in and the positioning boss positioned (2a), the upper surface center of described positioning protective sleeve (2) offers cutter holes, described cutter holes runs through described positioning boss (2a) downwards, described cutter is removably set in described cutter holes, and the positioning step (2c) be provided with in described cutter holes for carrying out axial location to described cutter, described cutter comprises the first cutter (3a) and the second cutter (3b), and described first cutter is fluted drill, and described second cutter is cutter tooth rotation direction with the external thread rotary of described fracture screw (1a) to contrary screw tap.
2. implantation body as claimed in claim 1 central bolt fracture taking-up instrument, it is characterized in that: described cutter comprises connecting axle and is fixed on the cutter body of described connecting axle end, described connecting bushing is located in described cutter holes and end face contacts with described positioning step (2c); Described cutter body is fluted drill or cutter tooth rotation direction with the external thread rotary of described fracture screw (1a) to contrary screw tap.
3. implantation body as claimed in claim 2 central bolt fracture taking-up instrument, is characterized in that: described positioning step (2c) to the distance of described fracture screw head is greater than the length of described cutter body.
4. implantation body as claimed in claim 2 central bolt fracture taking-up instrument, is characterized in that: the distance between the outer wall of described connecting axle and the inwall of described cutter holes is greater than 0mm and is less than or equal to 0.5mm.
5. implantation body as claimed in claim 1 central bolt fracture taking-up instrument; it is characterized in that: described positioning protective sleeve (2) comprises and connecting successively and the Handheld Division (21) of coaxial setting, joint pin (22) and positioning boss (2a); the lower end of described Handheld Division (21) extends radially outwardly and forms stopper section (21a), and the sidewall of described Handheld Division (21) is provided with anti-slip veins.
6. the implantation body's central bolt fracture taking-up instrument as described in any one of claim 1 to 5, is characterized in that: described cutter holes is the shoulder hole that upper end is large, lower end is little.
CN201520029534.7U 2015-01-15 2015-01-15 Implantation body's central bolt fracture taking-up instrument Expired - Fee Related CN204484358U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520029534.7U CN204484358U (en) 2015-01-15 2015-01-15 Implantation body's central bolt fracture taking-up instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520029534.7U CN204484358U (en) 2015-01-15 2015-01-15 Implantation body's central bolt fracture taking-up instrument

Publications (1)

Publication Number Publication Date
CN204484358U true CN204484358U (en) 2015-07-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104546167A (en) * 2015-01-15 2015-04-29 大连三生科技发展有限公司 Tool and method for taking out broken central bolt of planted body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104546167A (en) * 2015-01-15 2015-04-29 大连三生科技发展有限公司 Tool and method for taking out broken central bolt of planted body

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150722

Termination date: 20210115