CN201624762U - Medical penetration-type self-drilling self-tapping fixed bone needle - Google Patents
Medical penetration-type self-drilling self-tapping fixed bone needle Download PDFInfo
- Publication number
- CN201624762U CN201624762U CN200920266676XU CN200920266676U CN201624762U CN 201624762 U CN201624762 U CN 201624762U CN 200920266676X U CN200920266676X U CN 200920266676XU CN 200920266676 U CN200920266676 U CN 200920266676U CN 201624762 U CN201624762 U CN 201624762U
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- Prior art keywords
- spicule
- tapping
- blade
- self
- bone
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 82
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 54
- 238000005553 drilling Methods 0.000 title claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 8
- 206010031264 Osteonecrosis Diseases 0.000 abstract description 6
- 210000004872 soft tissue Anatomy 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 208000014674 injury Diseases 0.000 description 7
- 208000026137 Soft tissue injury Diseases 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 206010028851 Necrosis Diseases 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000017074 necrotic cell death Effects 0.000 description 2
- 206010010149 Complicated fracture Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 208000006735 Periostitis Diseases 0.000 description 1
- 206010062255 Soft tissue infection Diseases 0.000 description 1
- 206010066901 Treatment failure Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000003460 periosteum Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model relates to a medical penetration-type self-drilling self-tapping fixed bone needle, which comprises a bit blade, a tapping blade, a fixed thread and a power connector. The forefront of the bone needle is provided with the bit blade and the middle thereof is provided with the fixed thread. The front end of the fixed thread is provided with the tapping blade which is matched with the fixed thread. The tapping blade is symmetrically provided with chip chutes, and annular scale marks are arranged between the fixed thread and the tail of the bone needle. The tail of the bone needle is provided with a connector slot and the power connector. The medical penetration-type self-drilling self-tapping fixed bone needle has the benefits of avoiding too many bone chips and heat quantities, preventing the increase of the torque, avoiding the secondary damage to the bone due to the clamped needle and the broken blade, preventing the osteonecrosis due to high temperature, improving the strength of the fixed bone needle and preventing breaking the needle, effectively preventing the too-deep inserted fixed bone needle from damaging the contralateral soft tissue, avoiding too much X-ray radiation from damaging the staff, effectively simplifying the structure of the power chuck, and allowing the fixed thread to smoothly enter the bone for fixation.
Description
Technical field
This utility model relates to the fixed bone spicule of a kind of medical orthopaedics with bone external fixation dress, specifically a kind of medical penetrating type self-drilling self-tapping formula fixed bone spicule.
Background technology
Medical treatment orthopaedics external fixator is a kind of orthopaedics external fixation treatment technology convenient, simple, that wound is little of using; have the blood fortune of protecting periosteum and soft tissue to greatest extent and the advantage of carrying out functional exercise in early days; be applicable to and make internal fixation or, especially have advantage for situations such as extremity fracture that merges serious soft tissue injury and infection and temporary transient emergent management with the complicated fracture of soft tissue injury.The employed fixed bone spicule of existing medical bone external fixator must be used bit bore in advance, and then use the special screw tap tapping supporting with spicule on bone when undergoing surgery installation, install and fix spicule at last; Some sufferer need need lateral symmetry install and fix pin when the limb lateral symmetry is installed exterior fixation bracket suffering from, and such mode makes the operation process complexity, and the probability of operation risk and secondary injury increases, and operating time and sufferer are hemorrhage all to be increased to some extent; In the process of boring, the high speed rotating of drill bit causes the probability of head necrosis sharply to increase with the high heat that violent friction brings, and causes the fixing not firm or failure of fixed bone spicule thus, brings misery, disables and the medical expense increasing to the patient; In addition, the operation technique once more after the treatment failure must cause the secondary injury to the patient.
The utility model content
At above defective, this utility model provides a kind of medical penetrating type self-drilling self-tapping formula fixed bone spicule, can finish the installation of boring, tapping and fixed bone spicule by once-through operation, to avoid causing the phenomenon of head necrosis because of the high heat that high speed rotating and violent friction bring.
For achieving the above object, this utility model is by the following technical solutions:
A kind of medical penetrating type self-drilling self-tapping formula fixed bone spicule, mainly being divided into three parts is spicule head, middle part and afterbody, specifically comprise drill bit blade, tapping blade, retaining thread and power interface, the spicule head is foremost for being provided with the drill bit blade, the spicule middle part is provided with retaining thread, the front end of this retaining thread is offered the tapping blade that is complementary with it, and described tapping blade symmetry has chip area; Be distributed with some spaced annular staff gauge reticles between described retaining thread and the spicule afterbody, the spicule afterbody is provided with interface draw-in groove and power interface; The setting of described drill bit blade by knife edge included angle be 90 °, blade anterior angle be 52 ° 14 ', circumferential clearance be 14 ° 26 ' two blades constitute; The relief angle of described tapping blade be 17 ° 38 '; Described tapping cutting edge shape is for to transit to gradually and the identical blade of spicule retaining thread from lower and smooth blade; Described retaining thread is by cusp shape hyperbola, and tooth bottom is divided into the multistage transition arc, and the transition face at the bottom of cusp and the tooth is the section of the arc surface formation structure that takes the shape of the letter U; Described power interface draw-in groove is the cannelure around the spicule afterbody, and the power interface is one or several planar slots that periphery is left.
The beneficial effect of medical penetrating type self-drilling self-tapping formula fixed bone spicule described in the utility model is: on the bone low speed boring that suits is to avoid producing too much bone bits and heat, prevent that moment of torsion from increasing, required axial force and the moment of torsion of installation spicule reduced significantly, avoid taking place folder pin, disconnected sword and bone is caused the secondary injury, prevent that Yin Gaowen from osteonecrosis taking place; Improve the intensity of fixed bone spicule, effectively prevented the broken needle that under regular service conditions, takes place, improved the anchor force of fixed bone spicule, made fixed bone spicule be fit to long-term the indwelling, avoided taking place loosening phenomenon; Be convenient in operation, in time measure the degree of depth that fixed bone spicule inserts, prevent that effectively fixed bone spicule from inserting the soft tissue injury of taking an advanced study into offside, also can avoid using too much the injury of X-ray irradiation simultaneously personnel; Effectively simplified the structure of power chuck, be convenient to boring, tapping on bone, made retaining thread enter bone fixation smoothly simultaneously.
Description of drawings
With reference to the accompanying drawings this utility model is described in further detail below.
Fig. 1 is the structural representation of the described medical penetrating type self-drilling self-tapping formula fixed bone spicule of this utility model embodiment;
Fig. 2 is the bore cutter blade separation structure sketch map of the described medical penetrating type self-drilling self-tapping formula fixed bone spicule of this utility model embodiment;
Fig. 3 is the tapping blade and the retaining thread built-up section sketch map of the described medical penetrating type self-drilling self-tapping formula fixed bone spicule of this utility model embodiment;
Fig. 4 is the boring blade generalized section of the described medical penetrating type self-drilling self-tapping formula fixed bone spicule of this utility model embodiment;
Fig. 5 is the power interface generalized section of the described medical penetrating type self-drilling self-tapping formula fixed bone spicule of this utility model embodiment;
Fig. 6 is that the peripheral hardware of the described fixed bone spicule of this utility model embodiment is supporting with spicule chuck sketch map;
Fig. 7 is the supporting bitbrace sketch map of using of the described fixed bone spicule of this utility model embodiment;
Fig. 8 is the applied in any combination view of the described fixed bone spicule of this utility model embodiment.
Among the figure:
1, drill bit blade; 2, tapping blade; 3, chip area; 4, retaining thread; 5, annular staff gauge reticle; 6, the middle part part that is clamped and connected; 7, interface draw-in groove; 8, power interface; 9, supporting spicule chuck; 10, bitbrace.
The specific embodiment
Shown in Fig. 1-8, the described medical penetrating type self-drilling self-tapping formula fixed bone spicule of this utility model embodiment, mainly being divided into three parts is the spicule head, middle part and afterbody, specifically comprise drill bit blade 1, tapping blade 2, retaining thread 4 and power interface 8, the spicule head is to be suitable for the boring part of tick-over on bone and to be provided with drill bit blade 1 foremost, it is 90 ° that described drill bit blade 1 is provided with by knife edge included angle, the blade anterior angle be 52 ° 14 ', circumferential clearance be 14 ° 26 ' two blades constitute, the spicule middle part is provided with retaining thread 4, the front end of this retaining thread 4 is offered the tapping blade 2 that is complementary with it, the relief angle of this tapping blade 2 be 17 ° 38 ', its cutting edge shape for from lower and smooth blade transit to gradually with spicule retaining thread 4 identical blades so that finish tapping smoothly, and this retaining thread 4 is by cusp shape hyperbola, the tooth bottom is divided into the multistage transition arc, transition face at the bottom of cusp and the tooth is section that arc surface the constitutes structure that takes the shape of the letter U, this structure can provide big as far as possible fixed bone spicule in the anchoring area of bone, effectively improves the anchorage reliability of fixed bone spicule; It is 83 ° chip area 3 that described tapping blade 2 position symmetries have two spiral angles, the bone chips that produces when can be used for getting rid of the blade cutting, suitable anterior angle is provided, provides bigger cooling surface area for heat sinking function for blade.The spicule medium position is the middle part of the cylindrical shape of spicule and the bone external fixator part 6 that is clamped and connected, and is distributed with some and the annular staff gauge reticle 5 of 10mm at interval between described retaining thread 4 and the spicule afterbody; The spicule afterbody is provided with interface draw-in groove 7 and power interface 8, power interface draw-in groove 7 for connect supporting spicule chuck 9 required around the cannelure of spicule afterbody in order to spicule closely is connected with bitbrace 10 manual turning handles; Described power interface 8 is left one or several planar slots in order to transmit axial force and moment of torsion for periphery, makes spicule pressurization rotation to finish boring, tapping and fixing.
Table 1 and existing spicule contrast
| Spicule | Mounting means | The average set-up time | Power is installed | Heating temp is installed | The osteonecrosis probability | Secondary injury probability | The spicule crystallized ability | Retaining thread and bone bonding area | Spicule intensity |
| Old-fashioned spicule | Three operations are installed | About 90 seconds | Electronic | About 80 ℃ | About 1% | Bigger | Better | Less | Higher |
| This product spicule | Once-through operation is installed | About 20 seconds | Manually | Normal body temperature | Less than 0.1% | Less | Fine | Bigger | High |
The described medical penetrating type self-drilling self-tapping formula fixed bone spicule of above this utility model embodiment, compared with prior art, have the following advantages: 1. two boring blade suitable angle, anterior angle and relief angles, the design of its profile is suitable for the boring of on bone low speed to be avoided producing too much bone bits and heat, prevents that Yin Gaowen from osteonecrosis taking place; 2. the tapping blade by lower and smooth blade gradually transition be the blade identical with retaining thread, effectively reduce the required moment of torsion of tapping, avoid producing too much heat, prevent that Yin Gaowen from osteonecrosis taking place; 3. two chip areas that are symmetrically distributed with helical angle that are arranged on the tapping knife edge part are suitable for the low speed tapping for the tapping blade provides suitable blade anterior angle, and can effectively get rid of the bone bits that boring and tapping produce, prevent that moment of torsion from increasing, required axial force and the moment of torsion of installation spicule reduced significantly, avoid taking place folder pin, disconnected sword and bone is caused the secondary injury, avoid producing too much heat, prevent that Yin Gaowen from osteonecrosis taking place; 4. retaining thread constitutes the U-shaped screw thread by curve, and such section makes stress concentration greatly reduce, and has improved the intensity of fixed bone spicule, has effectively prevented the broken needle that takes place under regular service conditions; This U-shaped screw thread is when guaranteeing spicule intensity simultaneously, spicule and bone contact area have been increased again, make spicule stress distribution the best in bone, therefore the anchoring condition of spicule is greatly improved, improved the anchor force of fixed bone spicule, make fixed bone spicule be fit to long-term the indwelling, avoid taking place loosening phenomenon; 5. the part that is clamped and connected of fixed bone spicule is slick periphery, and diameter all is fit to be connected easily with the bone external fixator and adjust with length, guarantees powerful chucking power, has improved chucking power and has used flexibility ratio; 6. the part that is clamped and connected of fixed bone spicule is carved with several fixedly annular staff gauge reticles of unit gap, be convenient in operation, in time measure the degree of depth that fixed bone spicule inserts, prevent that effectively fixed bone spicule from inserting the soft tissue injury of taking an advanced study into offside, also can avoid using too much the injury of X-ray irradiation simultaneously hospitalized patients; 7. the power interface draw-in groove of fixed bone spicule is the endless groove of circular arc, can be easily and fast from the supporting power chuck loading and unloading of fixed bone spicule and prevent that spicule from coming off, effectively simplified the structure of power chuck; 8. the power interface of fixed bone spicule is the transmission of power interface of fixed bone spicule rotation and pressurization, being distributed in the plane that periphery extends vertically by one or several forms, its quantity is determined according to the diameter and the purposes of fixed bone spicule, can closely cooperate with the supporting power chuck of fixed bone spicule and transmit moment of torsion and plus-pressure, make fixed bone spicule pressurization rotation, be convenient to that fixed bone spicule is holed, tapping on bone, make retaining thread enter bone fixation smoothly simultaneously.
Claims (8)
1. medical penetrating type self-drilling self-tapping formula fixed bone spicule, mainly being divided into three parts is spicule head, middle part and afterbody, specifically comprise drill bit blade (1), tapping blade (2), retaining thread (4) and power interface (8), it is characterized in that: the spicule head is foremost for being provided with drill bit blade (1), the spicule middle part is provided with retaining thread (4), and the front end of this retaining thread (4) is offered the tapping blade (2) that is complementary with it; Described tapping blade (2) symmetry is offered chip area (3), is distributed with some spaced annular staff gauge reticles (5) between described retaining thread (4) and the spicule afterbody, and the spicule afterbody is provided with interface draw-in groove (7) and power interface (8).
2. medical penetrating type self-drilling self-tapping formula fixed bone spicule according to claim 1 is characterized in that: described drill bit blade (1) be provided with by knife edge included angle be 90 °, blade anterior angle be 52 ° 14 ', circumferential clearance be 14 ° 26 ' two blades constitute.
3. medical penetrating type self-drilling self-tapping formula fixed bone spicule according to claim 1 is characterized in that: the relief angle of described tapping blade (2) be set to 17 ° 38 '.
4. according to claim 1 or 3 described medical penetrating type self-drilling self-tapping formula fixed bone spicules, it is characterized in that: described tapping blade (2) be shaped as transit to gradually from lower and smooth blade identical with spicule retaining thread (4).
5. medical penetrating type self-drilling self-tapping formula fixed bone spicule according to claim 1 is characterized in that: described retaining thread (4) is by cusp shape hyperbola, and its tooth bottom is divided into the multistage transition arc.
6. medical penetrating type self-drilling self-tapping formula fixed bone spicule according to claim 1 is characterized in that: described interface draw-in groove (7) is the cannelure around the spicule afterbody.
7. medical penetrating type self-drilling self-tapping formula fixed bone spicule according to claim 1 is characterized in that: one or several planar slots that described power interface (8) is left for periphery.
8. medical penetrating type self-drilling self-tapping formula fixed bone spicule according to claim 5 is characterized in that: the transition face at the bottom of its cusp and the tooth is section that arc surface the constitutes structure that takes the shape of the letter U.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920266676XU CN201624762U (en) | 2009-12-03 | 2009-12-03 | Medical penetration-type self-drilling self-tapping fixed bone needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920266676XU CN201624762U (en) | 2009-12-03 | 2009-12-03 | Medical penetration-type self-drilling self-tapping fixed bone needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201624762U true CN201624762U (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920266676XU Expired - Fee Related CN201624762U (en) | 2009-12-03 | 2009-12-03 | Medical penetration-type self-drilling self-tapping fixed bone needle |
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| Country | Link |
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| CN (1) | CN201624762U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717932A (en) * | 2012-10-03 | 2015-06-17 | 加里·J·里德 | Medical fastener |
| CN105455873A (en) * | 2015-12-21 | 2016-04-06 | 武汉康斯泰德科技有限公司 | Spacing fixing type metal bone spicule |
| CN108030542A (en) * | 2018-01-30 | 2018-05-15 | 芜湖东旭威宇医疗器械科技有限公司 | A kind of easy entry spicule |
| CN109567915A (en) * | 2018-12-28 | 2019-04-05 | 浙江康慈医疗科技有限公司 | A kind of metal bone needle with drill bit function |
| CN109567917A (en) * | 2018-12-28 | 2019-04-05 | 浙江康慈医疗科技有限公司 | A kind of blunt nosed metal bone needle |
| CN111150472A (en) * | 2020-02-27 | 2020-05-15 | 江秋英 | Composite penetrating self-drilling and self-tapping spicule structure |
-
2009
- 2009-12-03 CN CN200920266676XU patent/CN201624762U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717932A (en) * | 2012-10-03 | 2015-06-17 | 加里·J·里德 | Medical fastener |
| CN104717932B (en) * | 2012-10-03 | 2018-04-13 | 加里·J·里德 | Medical fastener |
| US10639086B2 (en) | 2012-10-03 | 2020-05-05 | Rtg Scientific, Llc | Medical fastener |
| CN105455873A (en) * | 2015-12-21 | 2016-04-06 | 武汉康斯泰德科技有限公司 | Spacing fixing type metal bone spicule |
| CN108030542A (en) * | 2018-01-30 | 2018-05-15 | 芜湖东旭威宇医疗器械科技有限公司 | A kind of easy entry spicule |
| CN108030542B (en) * | 2018-01-30 | 2020-06-19 | 芜湖东旭威宇医疗器械科技有限公司 | Easy-to-insert bone needle |
| CN109567915A (en) * | 2018-12-28 | 2019-04-05 | 浙江康慈医疗科技有限公司 | A kind of metal bone needle with drill bit function |
| CN109567917A (en) * | 2018-12-28 | 2019-04-05 | 浙江康慈医疗科技有限公司 | A kind of blunt nosed metal bone needle |
| CN111150472A (en) * | 2020-02-27 | 2020-05-15 | 江秋英 | Composite penetrating self-drilling and self-tapping spicule structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Lv Ting Document name: Notification that Application Deemed not to be Proposed |
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| ASS | Succession or assignment of patent right |
Owner name: NINGBO SHEN'EN MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XU LIJIANG Effective date: 20150407 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315300 NINGBO, ZHEJIANG PROVINCE TO: 315000 NINGBO, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150407 Address after: Heart road 315000 in Zhejiang province Cixi city Sinpo Town, No. 518 Patentee after: Ningbo shen'en Medical Technology Co Ltd Address before: 315300 Zhejiang Province, Cixi city Sinpo town old Pu Cun Tongli Road No. 30 Patentee before: Xu Lijiang |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20171203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |