CN103126760A - Thread discontinuous detachable expansion bone nail - Google Patents
Thread discontinuous detachable expansion bone nail Download PDFInfo
- Publication number
- CN103126760A CN103126760A CN2012105338886A CN201210533888A CN103126760A CN 103126760 A CN103126760 A CN 103126760A CN 2012105338886 A CN2012105338886 A CN 2012105338886A CN 201210533888 A CN201210533888 A CN 201210533888A CN 103126760 A CN103126760 A CN 103126760A
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- Prior art keywords
- screw thread
- screw
- nail body
- nail
- thread
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- Granted
Links
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 21
- 210000005224 forefinger Anatomy 0.000 claims description 3
- 210000003813 thumb Anatomy 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The invention relates to the technical field of medical apparatus and instruments, in particular to a thread discontinuous detachable expansion bone nail. The thread discontinuous detachable expansion bone nail is composed of an operational cap, a locating strip, thread strips, a conical threaded rod, a bone nail body, side grooves and an expansion hole. A pair of side grooves is formed in the side wall of the bone nail body. The two side grooves are communicated with the expansion hole. Each thread strip is arranged inside each side groove. The inner side wall and the outer side wall of each thread strip are respectively in an arc plane with threads. The directions of the threads of the outer walls of the two thread strips are opposite. The thread strips are in clearance fit with the side grooves where the thread strips are arranged, and can horizontally move inside the side grooves where the thread strips are arranged along the side direction. According to the thread discontinuous detachable expansion bone nail, possibility that the bone nail drops out along the clockwise direction or along the anti-clockwise direction, an fixing effect is improved, and meanwhile operation is simpler and more convenient to achieve, operation damage is smaller, and safety is higher.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to the discontinuous detachable expansion nail of a kind of screw thread.
Background technology
The locking problem of nail is a great problem in bone surgery.The patent No. is that 200910059277.0 " inverting self-locking nail " and the patent No. are that 201010005355.1 " slip-type lock bone nail " all adopts the position relationship of two sections screws that hand of spiral is opposite to fix, and realizes preventing that nail is along the loosening technique effect of hand of spiral.But the technological deficiency that both all exists some to be difficult to be solved.
the patent No. is that 200910059277.0 " inverting self-locking nail " will reach its described technique effect, the most critical sport technique segment be documents description page 1 the 6th row reciprocal described " make in the contrary M shape slot that advances head one group of cross slot with align along the cross slot that advances bar " advance head and suitablely advance bar and all be in same fixing hole due to contrary, contraryly advance head along what enter to have blocked after bar screws in the inside, the operator can't observe position and the direction of one group of cross slot in the contrary rice font slot that advances head, again how, " one group of cross slot in the contrary M shape slot that advances head is alignd " with the suitable cross slot that advances bar? if this problem does not solve, how will transplant a cutting again simultaneously and to insert along advancing in bar and the contrary slot that advances head? can't insert cutting, along advancing bar and just can't fixing against the position relationship that advances head.In the description of this patent, above-mentioned needs are carried out the technological difficulties that creative work could solve, do not propose any solution.
And being the mode that two screws in 201010005355.1 " slip-type lock bone nail " lean on mutually by sidewall, the patent No. screws in bone, facilitated and made the rice font slot at two screw tops all clearly be illustrated in face of the operator, the operator can be adjusted to identical direction with two slots, be beneficial to cutting is knocked in slot, but this technical scheme is due to the mode that adopts two screws to use side by side, damage area to bone has increased by one times, increase the danger of bone splits, therefore remained worthless technical scheme.
In addition, how above-mentioned two schemes have only solved the problem with the position relationship locking of two screws, but do not have effective scheme can remove easily the locking of two screws, and the nail that therefore will remove in above-mentioned two schemes is very difficult thing.
Summary of the invention
The present invention is for solving the deficiencies in the prior art, provide under a kind of prerequisite not increasing the osteoclasia area, not only can lock easily the two-part position relationship that has the opposite threads direction on nail, the discontinuous detachable expansion nail of the screw thread that can also unlock easily.
The scheme that solves the technology of the present invention problem is: the discontinuous detachable expansion nail of screw thread is made of operation cap, positioning strip, screw thread bar, conical screw, nail body, side channel and inflation port.
Wherein, the nail body be the bottom with the cylinder of circular cone, the sidewall of nail body is threaded.The positioning strip that the arc of a pair of protrusion is arranged on the end face of nail body, inflation port are to be in the nail body and blind hole nail body concentric, and the upper end of inflation port opens wide and is between two positioning strips.
Its top of discoidal operation cap is with the screw edge of a knife, there is the corresponding groove of a pair of and described positioning strip the lower end of operation cap, the operation cap is placed in the top of nail body and the groove that described positioning strip is in operation cap lower end, and positioning strip becomes clearance fit relationship with the operation cap.
Have a pair of side channel on the sidewall of nail body, two side channels communicate with inflation port.One screw thread bar is arranged in every side channel, and the interior lateral wall of each screw thread bar is screwed arcwall face, and the hand of spiral of the outer wall of two screw thread bars is opposite.The front and back sidewall of each screw thread bar is a pair of perpendicular that is parallel to each other.The screw thread bar becomes clearance fit relationship and screw thread bar to move along side direction horizontal in the side channel at place with the side channel at place.
Conical screw be the bottom for conical cylinder, the screw thread that the sidewall of conical screw has the screw thread with the inwall of screw thread bar to cooperatively interact, the top of conical screw is with the screw edge of a knife.
When nail is installed, first with thumb and forefinger, two screw thread bars are pressed in described side channel, the bottom of operation cap is enclosed within on the positioning strip on nail body top, with screwdriver, the nail body is screwed in bone, then will operate cap and take off, then with the top screw-in of conical screw from the nail body, under the extruding of conical screw, two screw thread bars respectively from two side channels outwards motion and with bone wall close contact, this moment, nail was locked.
Adopt such scheme, compared with prior art, the present invention has following marked improvement:
1. the hand of spiral due to two screw thread bar outer walls is opposite, and no matter whole nail needs to which direction to rotate under external force, all can be subject to the resistance of screw thread in the other direction, has therefore played anti-loosening effect, has improved the fixed effect of nail.
2. because the present invention only just can realize the locking of nail by screwing in conical screw, compare with existing locking of bone nails technology, eliminated very loaded down with trivial details alignment function in the manual locking process, make operation easier, improved operation efficient.
3. the present invention compared with prior art, when realizing that two bodies of screw lock mutually, need not to increase the damaged area of bone, makes operation have less damage and higher safety.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A profile of Fig. 1.
In figure: 1. operate cap 2. positioning strip 3. screw thread bar 4. conical screw 5. nail body 6. side channel 7. inflation port
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
The discontinuous detachable expansion nail of screw thread is made of operation cap 1, positioning strip 2, screw thread bar 3, conical screw 4, nail body 5, side channel 6 and inflation port 7.
Wherein, nail body 5 be the bottom with the cylinder of circular cone, the sidewall of nail body 5 is threaded.The positioning strip 2 that the arc of a pair of protrusion is arranged on the end face of nail body 5, inflation port 7 are to be in nail body 5 and blind holes nail body 5 concentrics, and the upper end of inflation port 7 opens wide and is between two positioning strips 2.
Discoidal operation cap 1 its top is with the screw edge of a knife, there is the corresponding groove of a pair of and described positioning strip 2 lower end of operation cap 1, operation cap 1 is placed in the top of nail body 5 and the groove that described positioning strip 2 is in operation cap 1 lower end, 1 one-tenth clearance fit relationship of positioning strip 2 and operation cap.
Having a pair of side channel 6, two side channels 6 on the sidewall of nail body 5 communicates with inflation port 7.One screw thread bar 3 is arranged in every side channel 6, and the interior lateral wall of each screw thread bar 3 is screwed arcwall face, and the hand of spiral of the outer wall of two screw thread bars 3 is opposite.The front and back sidewall of each screw thread bar 3 is a pair of perpendicular that is parallel to each other.6 one-tenth clearance fit relationship of side channel at screw thread bar 3 and place and screw thread bar 3 can move along side direction horizontal the side channel 6 at place is interior.
Conical screw 4 be the bottom for conical cylinder, the screw thread that the sidewall of conical screw 4 has the screw thread with the inwall of screw thread bar 3 to cooperatively interact, the top of conical screw 4 is with the screw edge of a knife.
When nail is installed, first with thumb and forefinger, two screw thread bars 3 are pressed in described side channel 6, the bottom of operation cap 1 is enclosed within on the positioning strip 2 on nail body 5 tops, with screwdriver, nail body 5 is screwed in bone, then will operate cap 1 and take off, then with the top screw-in of conical screw 4 from nail body 5, under the extruding of conical screw 4, two screw thread bars 3 respectively from two side channels 6 outwards motion and with bone wall close contact, this moment, nail was locked.
Claims (1)
1. discontinuous detachable expansion nail of screw thread, by the operation cap, positioning strip, the screw thread bar, conical screw, the nail body, side channel and inflation port consist of, it is characterized in that: the nail body is that the bottom is with the cylinder of circular cone, the sidewall of nail body is threaded, the positioning strip that the arc of a pair of protrusion is arranged on the end face of nail body, inflation port is to be in the nail body and blind hole nail body concentric, the upper end of inflation port opens wide and is between two positioning strips, its top of discoidal operation cap is with the screw edge of a knife, there is the corresponding groove of a pair of and described positioning strip the lower end of operation cap, the operation cap is placed in the top of nail body and the groove that described positioning strip is in operation cap lower end, positioning strip becomes clearance fit relationship with the operation cap, have a pair of side channel on the sidewall of nail body, two side channels communicate with inflation port, one screw thread bar is arranged in every side channel, the interior lateral wall of each screw thread bar is screwed arcwall face, and the hand of spiral of the outer wall of two screw thread bars is opposite, the front and back sidewall of each screw thread bar is a pair of perpendicular that is parallel to each other, the screw thread bar becomes clearance fit relationship and screw thread bar to move along side direction horizontal in the side channel at place with the side channel at place, conical screw is that the bottom is conical cylinder, the screw thread that the sidewall of conical screw has the screw thread with the inwall of screw thread bar to cooperatively interact, the top of conical screw is with the screw edge of a knife, when nail is installed, first with thumb and forefinger, two screw thread bars are pressed in described side channel, the bottom of operation cap is enclosed within on the positioning strip on nail body top, with screwdriver, the nail body is screwed in bone, then will operate cap takes off, again with the top screw-in of conical screw from the nail body, under the extruding of conical screw, two screw thread bars respectively from two side channels outwards motion and with bone wall close contact, this moment, nail was locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533888.6A CN103126760B (en) | 2012-12-08 | 2012-12-08 | The discontinuous detachable expansion nail of screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533888.6A CN103126760B (en) | 2012-12-08 | 2012-12-08 | The discontinuous detachable expansion nail of screw thread |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103126760A true CN103126760A (en) | 2013-06-05 |
| CN103126760B CN103126760B (en) | 2015-09-09 |
Family
ID=48487656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210533888.6A Active CN103126760B (en) | 2012-12-08 | 2012-12-08 | The discontinuous detachable expansion nail of screw thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103126760B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520778A (en) * | 2016-01-12 | 2016-04-27 | 成都迅德科技有限公司 | Expansion bone nail |
| CN108095817A (en) * | 2018-02-05 | 2018-06-01 | 陈柏君 | Single needle bone-holder |
| CN110786921A (en) * | 2019-11-05 | 2020-02-14 | 邹祥 | Medical bone nail |
| CN114041865A (en) * | 2022-01-12 | 2022-02-15 | 深圳市斯玛仪器有限公司 | Medical treatment hollow nail gasket for orthopedic treatment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020072632A (en) * | 2001-03-12 | 2002-09-18 | 부경돈 | An immediate load implant |
| CN101548907A (en) * | 2009-05-14 | 2009-10-07 | 梁伟 | Inverting self-locking nail |
| US20100042164A1 (en) * | 2006-08-10 | 2010-02-18 | Shih-Tseng Lee | Expansion screw set and hollow nail and interior nail thereof |
| CN101721243A (en) * | 2010-01-14 | 2010-06-09 | 成都峻峰科技开发有限公司 | Slip-type lock bone nail |
| WO2011143346A2 (en) * | 2010-05-11 | 2011-11-17 | Warsaw Orthopedic, Inc. | Implant with deployable stabilizers |
| CN202537644U (en) * | 2012-02-24 | 2012-11-21 | 常州市海盈五金科技有限公司 | Assistant nail-cap type bone nail |
| CN202960738U (en) * | 2012-12-08 | 2013-06-05 | 宁波市鄞州云帆工程咨询有限公司 | Bone nail with rapid disassembly function |
-
2012
- 2012-12-08 CN CN201210533888.6A patent/CN103126760B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020072632A (en) * | 2001-03-12 | 2002-09-18 | 부경돈 | An immediate load implant |
| US20100042164A1 (en) * | 2006-08-10 | 2010-02-18 | Shih-Tseng Lee | Expansion screw set and hollow nail and interior nail thereof |
| CN101548907A (en) * | 2009-05-14 | 2009-10-07 | 梁伟 | Inverting self-locking nail |
| CN101721243A (en) * | 2010-01-14 | 2010-06-09 | 成都峻峰科技开发有限公司 | Slip-type lock bone nail |
| WO2011143346A2 (en) * | 2010-05-11 | 2011-11-17 | Warsaw Orthopedic, Inc. | Implant with deployable stabilizers |
| CN202537644U (en) * | 2012-02-24 | 2012-11-21 | 常州市海盈五金科技有限公司 | Assistant nail-cap type bone nail |
| CN202960738U (en) * | 2012-12-08 | 2013-06-05 | 宁波市鄞州云帆工程咨询有限公司 | Bone nail with rapid disassembly function |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105520778A (en) * | 2016-01-12 | 2016-04-27 | 成都迅德科技有限公司 | Expansion bone nail |
| CN108095817A (en) * | 2018-02-05 | 2018-06-01 | 陈柏君 | Single needle bone-holder |
| CN110786921A (en) * | 2019-11-05 | 2020-02-14 | 邹祥 | Medical bone nail |
| CN114041865A (en) * | 2022-01-12 | 2022-02-15 | 深圳市斯玛仪器有限公司 | Medical treatment hollow nail gasket for orthopedic treatment |
| CN114041865B (en) * | 2022-01-12 | 2022-03-15 | 深圳市斯玛仪器有限公司 | Medical treatment hollow nail gasket for orthopedic treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103126760B (en) | 2015-09-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG KANGSHENG MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: NINGBO YINZHOU YUNFAN ENGINEERING CONSULTING CO., LTD. Effective date: 20150805 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Jinyu Inventor before: Liang Defu |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIANG DEFU TO: SHI JINYU |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20150805 Address after: To the north of Shandong province Tai'an city Daiyue District 271000 Dawenkou gypsum Industrial Park Applicant after: SHANDONG KANGSHENG MEDICAL EQUIPMENT Co.,Ltd. Address before: 315192 Zhejiang City, Yinzhou District, the old Temple Temple Street, Changfeng old market to the south of the room eleventh 2-11 Applicant before: NINGBO YINZHOU YUNFAN ENGINEERING CONSULTING Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Thread discontinuous removable expandable bone nail Effective date of registration: 20211008 Granted publication date: 20150909 Pledgee: Industrial Bank Co.,Ltd. Tai'an Branch Pledgor: SHANDONG KANGSHENG MEDICAL EQUIPMENT Co.,Ltd. Registration number: Y2021980010353 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 9, Nanliu Street, Dawenkou Industrial Park, Daiyue District, Tai'an City, Shandong Province, 271000 Patentee after: Shandong Kangsheng Medical Device Co.,Ltd. Address before: North of Dawenkou Gypsum Industrial Park, Daiyue District, Tai'an City, Shandong Province, 271000 Patentee before: SHANDONG KANGSHENG MEDICAL EQUIPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230421 Granted publication date: 20150909 Pledgee: Industrial Bank Co.,Ltd. Tai'an Branch Pledgor: SHANDONG KANGSHENG MEDICAL EQUIPMENT Co.,Ltd. Registration number: Y2021980010353 |