CN103690220A - Medical reamer - Google Patents

Medical reamer Download PDF

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Publication number
CN103690220A
CN103690220A CN201310698138.9A CN201310698138A CN103690220A CN 103690220 A CN103690220 A CN 103690220A CN 201310698138 A CN201310698138 A CN 201310698138A CN 103690220 A CN103690220 A CN 103690220A
Authority
CN
China
Prior art keywords
connecting portion
handle
blade
knife
medical
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.)
Pending
Application number
CN201310698138.9A
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Chinese (zh)
Inventor
朱胜雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Yutian Precision Tool Co Ltd
Original Assignee
Wuxi Yutian Precision Tool Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuxi Yutian Precision Tool Co Ltd filed Critical Wuxi Yutian Precision Tool Co Ltd
Priority to CN201310698138.9A priority Critical patent/CN103690220A/en
Publication of CN103690220A publication Critical patent/CN103690220A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1604Chisels; Rongeurs; Punches; Stamps

Abstract

The invention relates to the field of medical apparatuses and particularly relates to a medical reamer. The medical reamer is mainly used for bone reaming and comprises blades, a handle, a connection portion connecting the blades and the handle and an inner hole which penetrates the blades, the handle and the connection portion and is arranged axially. The blades comprise a bottom blade arranged at the front end, at least three cutting blades extending backwards spirally along the blade axis direction and camber transition spiral grooves formed between every two cutting blades. A concave arc front blade plane is arranged at the front end of each cutting edge, and grooves are formed in the connection position of the front ends of the spiral grooves and the front blade planes. According to the medical reamer, the structure is reasonable, the whole strength is improved, accurate reaming and is performed on bones, one-step shaping is achieved, and the machining efficiency and the consistency are greatly improved; cuttings can be discharged easily due to the large-area arranging of the spiral grooves, and the reamer service life is prolonged.

Description

A kind of medical reamer
Technical field
The present invention relates to medical instruments field, particularly a kind of medical reamer.
Background technology
Reamer be there are one or more cutters tooth, in order to excise the rotary cutter of hole surface sheet metal, there is the rotation finishing tool of straight sword or helical edges, for reaming or repair hole.
Reamer applies to medical field, mainly for be punching and the reaming of bone, bone is mixed and is formed by living cells and mineral (being mainly calcium and phosphorus), quality is hard, by traditional maneuver, is difficult to manipulation.Existing medical reamer, the aperture structure processing is single, size and dimension is accurate not, directly affected medical effect, and often knife bar takies more processing space, cause the minimizing in chip removal space, when chip removal is too much, easily causes and block phenomenon, serious even may reduce the success rate of operation.
Summary of the invention
The object of the invention is to defect and deficiency for prior art, provide a kind of rational in infrastructure, easy to use, chip removal to be easy to the medical reamer for bone reaming.
For achieving the above object, the present invention is by the following technical solutions:
A kind of medical reamer of the present invention, be mainly used in bone reaming, the blade that comprises one-body molded concentric, handle of a knife, the connecting portion that connects described blade and handle of a knife, and run through described blade, the endoporus in axial direction arranging of handle of a knife and connecting portion, described handle of a knife is cylindric, described blade comprises the shear blade that is arranged at front end face, along described blade axis direction at least three cutting edges of spiral extension backward, and be arranged at the helicla flute of the cambered surface transition between adjacent two cutting edges, the front end of described cutting edge is provided with the arc lip surface of a depression, described lip surface extends back along the direction in cutting face, described spiral fluted front end and described lip surface junction are provided with a groove.
Further, described connecting portion comprises the first connecting portion being connected with described blade, the second connecting portion being connected with described handle of a knife, and described the first connecting portion is that side is the cylinder of arc, and described the second connecting portion is cylinder.
Further, described the first connecting portion and the second connecting portion arc transition, and the outside diameter of described the second connecting portion is greater than the outside diameter of the first connecting portion.
Further, the outside diameter of described the second connecting portion is greater than the outside diameter of described handle of a knife.
Further, described cutting edge and the first connecting portion cambered surface transition.
Further, described helicla flute is spirally extended to connecting portion backward along described blade axis direction, and described helicla flute and the first connecting portion cambered surface transition form the second transition face.
Further, described cutting edge and the first connecting portion cambered surface transition, formed First Transition face.
Further, described handle of a knife end is provided with an auxiliary section, and described auxiliary section engages with an external equipment.
Further, described endoporus is cylindrical.
Beneficial effect of the present invention is: the present invention is rational in infrastructure, has increased bulk strength, and bone is carried out to accurate reaming, one-shot forming, greatly improved working (machining) efficiency and concordance, and large-area spiral fluted is arranged so that smear metal can more easily discharge, extended the service life of cutter.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the cutaway view in A-A direction of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
As Fig. 1, shown in Fig. 2, a kind of medical reamer of the present invention, be mainly used in bone reaming, the blade 1 that comprises one-body molded concentric, handle of a knife 2, the connecting portion 3 that connects blade 1 and handle of a knife 2, and run through blade 1, the endoporus 4 in axial direction arranging of handle of a knife 2 and connecting portion 3, handle of a knife 2 is cylindric, blade 1 comprises the shear blade 11 that is arranged at front end face, along blade 1 axis direction at least three cutting edges 12 of spiral extension backward, and be arranged at the helicla flute 13 of the cambered surface transition between adjacent two cutting edges 12, the front end of cutting edge 12 is provided with the arc lip surface 121 of a depression, the front end of helicla flute 13 and lip surface 121 junctions are provided with a groove 131.This design, can be good at revising the beat of reamer, avoids producing the phenomenons such as burr in hole, and the aperture processing is more accurate, and one-shot forming simultaneously, has improved working (machining) efficiency and concordance, guarantees that the quality in hole and technical parameter reach requirements of operation.Preferably, endoporus 4 is cylindrical, in order to accelerate heat radiation in operating process.
Wherein, connecting portion 3 comprises that the first connecting portion 31 being connected with blade 1, the second connecting portion 32, the first connecting portions 31 that are connected with handle of a knife 2 are that side is the cylinder of arc, and the second connecting portion 32 is cylinder.The first connecting portion 31 and the second connecting portion 32 arc transition, and the outside diameter of the second connecting portion 32 is greater than the outside diameter of the first connecting portion 31.The outside diameter of the second connecting portion 32 is greater than again the outside diameter of handle of a knife 2 simultaneously.The arc design of the first connecting portion 31 has strengthened the intensity of the present invention's medical treatment reamer, has extended service life.
It should be noted that, lip surface 121 is arcwall face, and along cutting face, 12 direction extends back for it, and smear metal can more easily be discharged.Meanwhile, cutting edge 12 and the first connecting portion 31 cambered surface transition, formed First Transition face 122.And helicla flute 13 is spirally extended to connecting portion 3 backward along described blade axis direction, helicla flute 13 and the first connecting portion 31 cambered surface transition, form the second transition face 132.The setting of helicla flute 13 and the second transition face 132 has increased the spatial area of chip removal greatly, and smear metal can smooth and easyly be discharged.
Finally, handle of a knife 2 ends are provided with an auxiliary section 21, and auxiliary section 21 engages with an external equipment.
Medical reamer of the present invention, rational in infrastructure, reaming is more accurate, and one-shot forming has improved work efficiency and concordance, and cambered surface design has strengthened the intensity of reamer, and chip removal space increases greatly, has extended service life.
The above is only better embodiment of the present invention, and the equivalence of doing according to structure, feature and principle described in patent claim of the present invention therefore all changes or modifies, and is included in patent claim of the present invention.

Claims (9)

1. a medical reamer, be mainly used in bone reaming, it is characterized in that: the blade that comprises one-body molded concentric, handle of a knife, the connecting portion that connects described blade and handle of a knife, and run through described blade, the endoporus in axial direction arranging of handle of a knife and connecting portion, described handle of a knife is cylindric, described blade comprises the shear blade that is arranged at front end face, along described blade axis direction at least three cutting edges of spiral extension backward, and be arranged at the helicla flute of the cambered surface transition between adjacent two cutting edges, the front end of described cutting edge is provided with the arc lip surface of a depression, described lip surface extends back along the direction in cutting face, described spiral fluted front end and described lip surface junction are provided with a groove.
2. medical reamer according to claim 1, it is characterized in that: described connecting portion comprises the first connecting portion being connected with described blade, the second connecting portion being connected with described handle of a knife, described the first connecting portion is that side is the cylinder of arc, and described the second connecting portion is cylinder.
3. medical reamer according to claim 2, is characterized in that: described the first connecting portion and the second connecting portion arc transition, and the outside diameter of described the second connecting portion is greater than the outside diameter of the first connecting portion.
4. medical reamer according to claim 2, is characterized in that: the outside diameter of described the second connecting portion is greater than the outside diameter of described handle of a knife.
5. medical reamer according to claim 2, is characterized in that: described cutting edge and the first connecting portion cambered surface transition.
6. medical reamer according to claim 2, is characterized in that: described helicla flute is spirally extended to connecting portion backward along described blade axis direction, and described helicla flute and the first connecting portion cambered surface transition form the second transition face.
7. medical reamer according to claim 2, is characterized in that: described cutting edge and the first connecting portion cambered surface transition, formed First Transition face.
8. medical reamer according to claim 1, is characterized in that: described handle of a knife end is provided with an auxiliary section, and described auxiliary section engages with an external equipment.
9. medical reamer according to claim 1, is characterized in that: described endoporus is cylindrical.
CN201310698138.9A 2013-12-18 2013-12-18 Medical reamer Pending CN103690220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310698138.9A CN103690220A (en) 2013-12-18 2013-12-18 Medical reamer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310698138.9A CN103690220A (en) 2013-12-18 2013-12-18 Medical reamer

Publications (1)

Publication Number Publication Date
CN103690220A true CN103690220A (en) 2014-04-02

Family

ID=50352002

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310698138.9A Pending CN103690220A (en) 2013-12-18 2013-12-18 Medical reamer

Country Status (1)

Country Link
CN (1) CN103690220A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106691543A (en) * 2017-02-21 2017-05-24 江苏水木天蓬科技有限公司 Ultrasonic scalpel head
CN110300555A (en) * 2017-02-14 2019-10-01 德普伊爱尔兰无限公司 Surgery rotary cutting tool
CN110680455A (en) * 2019-10-25 2020-01-14 中国人民解放军陆军军医大学第一附属医院 Reamer for medullary cavity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951690A (en) * 1984-01-31 1990-08-28 Baker John W Method of drilling through a bone structure
US5759185A (en) * 1994-10-24 1998-06-02 Smith & Nephew, Inc. Surgical instrument
US6221076B1 (en) * 1997-01-31 2001-04-24 Astra Aktiebolag Bone reamer for sharping bone sockets or cavities during orthopaedic surgery
CN2724645Y (en) * 2004-09-02 2005-09-14 马桂文 Drilling cutting tool for bone-culting operation
CN203647425U (en) * 2013-12-18 2014-06-18 无锡雨田精密工具有限公司 Medical reamer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4951690A (en) * 1984-01-31 1990-08-28 Baker John W Method of drilling through a bone structure
US5759185A (en) * 1994-10-24 1998-06-02 Smith & Nephew, Inc. Surgical instrument
US6221076B1 (en) * 1997-01-31 2001-04-24 Astra Aktiebolag Bone reamer for sharping bone sockets or cavities during orthopaedic surgery
CN2724645Y (en) * 2004-09-02 2005-09-14 马桂文 Drilling cutting tool for bone-culting operation
CN203647425U (en) * 2013-12-18 2014-06-18 无锡雨田精密工具有限公司 Medical reamer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110300555A (en) * 2017-02-14 2019-10-01 德普伊爱尔兰无限公司 Surgery rotary cutting tool
CN110300555B (en) * 2017-02-14 2022-07-29 德普伊爱尔兰无限公司 Surgical rotary cutting tool
CN106691543A (en) * 2017-02-21 2017-05-24 江苏水木天蓬科技有限公司 Ultrasonic scalpel head
WO2018153249A1 (en) * 2017-02-21 2018-08-30 江苏水木天蓬科技有限公司 Ultrasonic scalpel bit
KR20190002533U (en) * 2017-02-21 2019-10-10 지앙수 에스엠티피 테크놀로지 씨오., 엘티디. Ultrasonic scalpel bits
KR200494036Y1 (en) 2017-02-21 2021-07-19 지앙수 에스엠티피 테크놀로지 씨오., 엘티디. ultrasonic scalpel
CN110680455A (en) * 2019-10-25 2020-01-14 中国人民解放军陆军军医大学第一附属医院 Reamer for medullary cavity

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Application publication date: 20140402