CN110623722B - Broken intramedullary nail main nail extracting device - Google Patents
Broken intramedullary nail main nail extracting device Download PDFInfo
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- CN110623722B CN110623722B CN201910919868.4A CN201910919868A CN110623722B CN 110623722 B CN110623722 B CN 110623722B CN 201910919868 A CN201910919868 A CN 201910919868A CN 110623722 B CN110623722 B CN 110623722B
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- handle
- expansion
- ejector rod
- rod
- nail
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B17/921—Impactors or extractors, e.g. for removing intramedullary devices for intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B2017/922—Devices for impaction, impact element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B2017/922—Devices for impaction, impact element
- A61B2017/924—Impact element driving means
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a broken intramedullary nail main nail taking-out device, which belongs to the technical field of medical instruments and comprises a handle, a handle ejector rod, a handle pull sleeve, a connecting nut, a spring, an expansion pull rod, a thrust tube and an expansion tube, wherein the left end of the handle ejector rod is connected with the handle, the right end of the handle ejector rod extends into the handle pull sleeve, the rightmost ends of the handle ejector rod and the handle pull sleeve are aligned, the connecting nut is sleeved on the handle ejector rod and then connected with the left end of the handle pull sleeve, the spring is sleeved on the handle ejector rod and arranged in a space enclosed by the handle ejector rod and the handle pull sleeve, one end of the expansion pull rod is arranged inside the handle ejector rod, the other end of the expansion pull rod is arranged outside the handle ejector rod, the thrust tube is sleeved at one end outside the ejector rod, the expansion tube is sleeved at the right end of the expansion pull rod, and the left end of the expansion tube is contacted with the right end of the thrust tube. The invention can simply and safely take out the broken nail at the far end of the intramedullary nail on the basis of not increasing the surgical wound of a patient.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a broken intramedullary nail extraction device for a main nail of an intramedullary nail.
Background
At present, the femoral and tibial intramedullary nails are the golden standards for treating the lower limb long shaft fracture, and with the increasing application of the intramedullary nails, the fracture of main nails of the intramedullary nails after operation has more and more cases, once the main nails are fractured, the taking out of the broken nail far end becomes very difficult, the taking out of the broken nail often brings huge damage to patients, and the operation trauma can be increased to the patients.
Disclosure of Invention
In view of the above, the present invention is directed to provide a simple and practical intramedullary nail broken nail extraction device without additional trauma to the patient.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: a broken intramedullary nail main nail extracting device comprises a handle, a handle ejector rod, a handle pull sleeve, a connecting nut, a spring, an expansion pull rod, a thrust tube and an expansion tube, the left end of the handle ejector rod is connected with the handle, the right end of the handle ejector rod extends into the handle pull sleeve, the rightmost ends of the handle ejector rod and the handle pull sleeve are aligned, the connecting nut is sleeved on the handle ejector rod, then is connected with the left end of the handle pull sleeve, the spring is sleeved on the handle ejector rod and is arranged in a space enclosed by the handle ejector rod and the handle pull sleeve, one end of the expansion pull rod is arranged inside the handle push rod, the other end of the expansion pull rod is arranged outside the handle push rod, the thrust tube is sleeved at one end of the expansion pull rod, which is positioned outside the handle push rod, the expansion tube is sleeved at the right end of the expansion pull rod, and meanwhile, the left end of the expansion tube is contacted with the right end of the thrust tube;
the handle ejector rod comprises a connecting rod, a baffle plate and a sliding groove, the baffle plate is arranged in the middle of the connecting rod, and the sliding groove is arranged at the right end of the connecting rod;
the handle pull sleeve comprises a lifting handle, a matching pipe, a fixing hole, a first through hole, a second through hole and a third through hole, the lifting handle is connected to the left end of the matching pipe, the first through hole, the second through hole and the third through hole are sequentially arranged in the matching pipe from left to right, and the fixing hole is formed in the side wall of the matching pipe;
the position space where the spring is located is a space defined by the baffle and the second through hole.
Further, the connecting nut comprises a portable hole and a nut body, and the portable hole is formed in the top end of the nut body.
Furthermore, the expansion pull rod comprises a cylindrical head, a guide wire and an expansion head, the left end of the guide wire is connected with the cylindrical head, the axes of the guide wire and the cylindrical head are orthogonal, the right end of the guide wire is connected with the expansion head, and the axes of the guide wire and the expansion head are overlapped.
Furthermore, a plurality of notches which are distributed at equal intervals are arranged on the outer wall of the thrust pipe along two sides of the central line, and the positions of the upper notches and the positions of the lower notches are horizontally staggered.
Furthermore, the expansion pipe comprises a pipe body, four first incisions and four second incisions, the first incisions and the second incisions are arranged on the side wall of the pipe body and are uniformly distributed in the circumferential direction of the axis of the pipe body respectively, the openings of the first incisions are arranged at the right end of the pipe body, and the openings of the second incisions are arranged at the left end of the pipe body.
Furthermore, an included angle between a plane formed by the two oppositely arranged first notches and a plane formed by the two oppositely arranged second notches is 45 degrees.
Compared with the prior art, the device for extracting the broken main nail of the intramedullary nail can simply and safely extract the broken distal nail of the intramedullary nail without increasing the surgical trauma of a patient, and can not increase the surgical difficulty and the additional trauma of the patient.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
FIG. 1 is a schematic structural view of a broken intramedullary nail extraction device according to an embodiment of the present invention;
FIG. 2 is an assembled view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of a handle stem bar according to an embodiment of the present invention;
FIG. 4 is a schematic view of B-B in FIG. 3;
FIG. 5 is a schematic structural view of a handle pull sleeve according to an embodiment of the present invention;
FIG. 6 is a schematic view of C-C of FIG. 5;
FIG. 7 is a schematic structural diagram of a coupling nut according to an embodiment of the present invention;
FIG. 8 is a schematic view of an embodiment of the expansion tie bar of the present invention;
FIG. 9 is a schematic structural diagram of a thrust tube according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a portion D in fig. 9;
FIG. 11 is a schematic structural view of an expansion tube according to an embodiment of the present invention;
fig. 12 is a schematic view of E-E in fig. 11.
Description of reference numerals:
1. a handle; 2. a handle ejector rod; 3. a handle pull sleeve; 4. a connecting nut; 5. a spring; 6. an expansion pull rod; 7. a thrust tube; 8. an expansion tube; 9. a connecting rod; 10. a baffle plate; 11. a chute; 12. a handle; 13. a mating tube; 14. a fixing hole; 15. a first through hole; 16. a second through hole; 17. a third through hole; 18. a portable hole; 19. a nut body; 20. a cylindrical head; 21. a guide wire; 22. an expansion head; 23. a tube body; 24. a first cut; 25. a second incision.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-12, the invention is an intramedullary nail main nail broken nail extraction device, which comprises a handle 1, a handle ejector rod 2, a handle pull sleeve 3, a connecting nut 4, a spring 5, an expansion pull rod 6, a thrust tube 7 and an expansion tube 8, wherein the left end of the handle ejector rod 2 is connected with the handle 1, the right end of the handle ejector rod 2 extends into the handle pull sleeve 3, the rightmost ends of the handle ejector rod and the handle pull sleeve 3 are aligned, the connecting nut 4 is sleeved on the handle ejector rod 2 and then connected with the left end of the handle pull sleeve 3, the spring 5 is sleeved on the handle ejector rod 2 and is arranged in a space enclosed by the handle ejector rod 2 and the handle pull sleeve 3, one end of the expansion pull rod 6 is arranged inside the handle ejector rod 2, the other end of the expansion pull rod is arranged outside the handle ejector rod 2, the thrust tube 7 is sleeved on one end of the expansion pull rod 6 positioned outside the handle ejector rod 2, the expansion pipe 8 is sleeved at the right end of the expansion pull rod 6, and meanwhile, the left end of the expansion pipe 8 is in contact with the right end of the thrust pipe 7.
The handle ejector rod 2 comprises a connecting rod 9, a baffle 10 and a sliding groove 11, wherein the baffle 10 is arranged in the middle of the connecting rod 9, and the sliding groove 11 is arranged at the right end of the connecting rod 9.
Handle draws cover 3 to include handle 12, cooperation pipe 13, fixed orifices 14, first through-hole 15, second through-hole 16 and third through-hole 17, handle 12 is connected the left end of cooperation pipe 13, first through-hole 15 second through-hole 16 with third through-hole 17 sets gradually according to the order from a left side to the right in the cooperation pipe 13, fixed orifices 14 sets up on the lateral wall of cooperation pipe 13.
The position space of the spring 5 is a space enclosed by the baffle 10 and the second through hole 16.
The connecting nut 4 comprises a portable hole 18 and a nut body 19, the portable hole 18 is arranged at the top end of the nut body 19, and the portable hole 18 is convenient to install or disassemble the connecting nut 4.
The expansion pull rod 6 comprises a cylindrical head 20, a guide wire 21 and an expansion head 22, the left end of the guide wire 21 is connected with the cylindrical head 20, the axes of the guide wire and the cylindrical head are orthogonal, the right end of the guide wire 21 is connected with the expansion head 22, and the axes of the guide wire and the expansion head coincide.
The outer wall of the thrust pipe 7 is provided with a plurality of notches distributed at equal intervals along two sides of the central line, the positions of the upper notches and the positions of the lower notches are horizontally staggered, and the thrust pipe 7 is changed into an elastic piece due to the existence of the notches, so that the thrust pipe is convenient to extrude or bend.
The expansion pipe 8 comprises a pipe body 23, four first incisions 24 and four second incisions 25, the first incisions 24 and the second incisions 25 are arranged on the side wall of the pipe body 23 and are uniformly distributed in the circumferential direction of the axis of the pipe body 23, the opening of the first incisions 24 is arranged at the right end of the pipe body 23, the opening of the second incisions 25 is arranged at the left end of the pipe body 23, and the first incisions 24 and the second incisions 25 are arranged at the two ends of the pipe body 23, so that the expansion pipe 8 becomes an elastic member, and the radial expansion of the expansion pipe 8 can be realized.
The included angle between the plane formed by the two oppositely arranged first cuts 24 and the plane formed by the two oppositely arranged second cuts 25 is 45 degrees, so that the expansion pipe 8 is uniformly stressed when being radially expanded.
In the actual working process, the tail end of the device containing the expansion pipe 8 enters the inner diameter of the broken nail by holding the device, then the handle 1 is held by the hand, the handle 12 is tightly held by fingers to press the handle pull sleeve 3, the handle pull sleeve 3 drives the expansion pull rod 6 to slide in the chute 11 of the handle ejector rod 2, so that the expansion head 22 of the expansion pull rod 6 enters the expansion pipe 8, the expansion pipe 8 radially expands to further realize expansion and fastening of the broken nail, and finally the broken nail can be taken out together only by slowly taking out the device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides an intramedullary nail main nail broken nail remove device which characterized in that: comprises a handle (1), a handle ejector rod (2), a handle pull sleeve (3), a connecting nut (4), a spring (5), an expansion pull rod (6), a thrust pipe (7) and an expansion pipe (8), wherein the left end of the handle ejector rod (2) is connected with the handle (1), the right end of the handle ejector rod (2) extends into the handle pull sleeve (3), the rightmost ends of the handle ejector rod and the handle pull sleeve are aligned, the connecting nut (4) is sleeved on the handle ejector rod (2) and then connected with the left end of the handle pull sleeve (3), the spring (5) is sleeved on the handle ejector rod (2) and is arranged in a space enclosed by the handle ejector rod (2) and the inside of the handle pull sleeve (3), one end of the expansion pull rod (6) is arranged in the handle ejector rod (2), the other end of the expansion pull rod is arranged outside the handle ejector rod (2), the thrust tube (7) is sleeved at one end, located outside the handle ejector rod (2), of the expansion pull rod (6), the expansion tube (8) is sleeved at the right end of the expansion pull rod (6), and meanwhile the left end of the expansion tube (8) is in contact with the right end of the thrust tube (7);
the handle ejector rod (2) comprises a connecting rod (9), a baffle plate (10) and a sliding groove (11), the baffle plate (10) is arranged in the middle of the connecting rod (9), and the sliding groove (11) is arranged at the right end of the connecting rod (9);
the handle pull sleeve (3) comprises a handle (12), a matching pipe (13), a fixing hole (14), a first through hole (15), a second through hole (16) and a third through hole (17), the handle (12) is connected to the left end of the matching pipe (13), the first through hole (15), the second through hole (16) and the third through hole (17) are sequentially arranged in the matching pipe (13) from left to right, and the fixing hole (14) is formed in the side wall of the matching pipe (13);
the position space where the spring (5) is located is a space surrounded by the baffle (10) and the second through hole (16).
2. The intramedullary nail main nail broken nail extraction device according to claim 1, wherein: the connecting nut (4) comprises a portable hole (18) and a nut main body (19), and the portable hole (18) is arranged at the top end of the nut main body (19).
3. The intramedullary nail main nail broken nail extraction device according to claim 1, wherein: the expansion pull rod (6) comprises a cylindrical head (20), a guide wire (21) and an expansion head (22), the left end of the guide wire (21) is connected with the cylindrical head (20), the axes of the guide wire and the cylindrical head are orthogonal, the right end of the guide wire (21) is connected with the expansion head (22), and the axes of the guide wire and the expansion head coincide.
4. The intramedullary nail main nail broken nail extraction device according to claim 1, wherein: and a plurality of notches which are distributed at equal intervals are arranged on the outer wall of the thrust pipe (7) along two sides of the central line, and the positions of the upper notches and the lower notches are horizontally staggered.
5. The intramedullary nail main nail broken nail extraction device according to claim 1, wherein: expansion pipe (8) include body (23), four first incisions (24) and four second incisions (25), first incision (24) with second incision (25) all set up on the lateral wall of body (23), and both follow respectively the axis circumferencial direction evenly distributed of body (23), simultaneously the opening setting of first incision (24) is in the right-hand member of body (23), the opening setting of second incision (25) is in the left end of body (23).
6. The intramedullary nail main nail broken nail extraction device according to claim 5, wherein: the included angle between the plane formed by the two oppositely arranged first notches (24) and the plane formed by the two oppositely arranged second notches (25) is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919868.4A CN110623722B (en) | 2019-09-26 | 2019-09-26 | Broken intramedullary nail main nail extracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910919868.4A CN110623722B (en) | 2019-09-26 | 2019-09-26 | Broken intramedullary nail main nail extracting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110623722A CN110623722A (en) | 2019-12-31 |
| CN110623722B true CN110623722B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910919868.4A Active CN110623722B (en) | 2019-09-26 | 2019-09-26 | Broken intramedullary nail main nail extracting device |
Country Status (1)
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| CN (1) | CN110623722B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888757B (en) * | 2022-06-29 | 2024-05-07 | 中国科学院空间应用工程与技术中心 | Screw take-out device |
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| US4776328A (en) * | 1986-04-15 | 1988-10-11 | Sulzer Brothers Limited | Bone nail and an instrument for implanting a bone nail |
| US6261289B1 (en) * | 1998-10-26 | 2001-07-17 | Mark Levy | Expandable orthopedic device |
| CN2857865Y (en) * | 2005-09-03 | 2007-01-17 | 于淼 | Universal intramarrow nail extractor |
| CN102274071A (en) * | 2010-06-11 | 2011-12-14 | 杨铁毅 | Intramedullary nail extractor |
| CN102813548A (en) * | 2012-08-21 | 2012-12-12 | 杨铁毅 | Intramedullary nail extractor |
| CN104434295A (en) * | 2014-11-07 | 2015-03-25 | 中国人民解放军第四军医大学 | Special screw driver for taking orthopaedic internal fixed slip screw |
| CN208435784U (en) * | 2017-10-09 | 2019-01-29 | 蒋世杰 | Extractor of orthopedic slipped screws |
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| US7507241B2 (en) * | 2004-04-05 | 2009-03-24 | Expanding Orthopedics Inc. | Expandable bone device |
| CN1298295C (en) * | 2004-12-30 | 2007-02-07 | 潘滔 | Opening type intramedullary nail |
| CN202161403U (en) * | 2011-07-08 | 2012-03-14 | 浙江神腾康慈生物医药科技有限公司 | Torque-resistant quick-connecting handle |
| CN202875463U (en) * | 2012-08-21 | 2013-04-17 | 杨铁毅 | Intramedullary nail extracting device |
| EP2910209A1 (en) * | 2014-02-21 | 2015-08-26 | NG Patentverwertungs UG | Intramedullary device for osteosynthesis |
| CN107184269B (en) * | 2017-07-12 | 2024-04-19 | 王丰岩 | Reverse tension type intramedullary nail broken nail extractor |
| CN208388737U (en) * | 2017-10-11 | 2019-01-18 | 山东威高骨科材料股份有限公司 | A kind of continuous locking type is autotomyed plug screw locking bottle opener |
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2019
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4776328A (en) * | 1986-04-15 | 1988-10-11 | Sulzer Brothers Limited | Bone nail and an instrument for implanting a bone nail |
| US6261289B1 (en) * | 1998-10-26 | 2001-07-17 | Mark Levy | Expandable orthopedic device |
| CN2857865Y (en) * | 2005-09-03 | 2007-01-17 | 于淼 | Universal intramarrow nail extractor |
| CN102274071A (en) * | 2010-06-11 | 2011-12-14 | 杨铁毅 | Intramedullary nail extractor |
| CN102813548A (en) * | 2012-08-21 | 2012-12-12 | 杨铁毅 | Intramedullary nail extractor |
| CN104434295A (en) * | 2014-11-07 | 2015-03-25 | 中国人民解放军第四军医大学 | Special screw driver for taking orthopaedic internal fixed slip screw |
| CN204306894U (en) * | 2014-11-07 | 2015-05-06 | 中国人民解放军第四军医大学 | One gets orthopaedics internal fixtion slipped screws Speical screwdriver |
| CN208435784U (en) * | 2017-10-09 | 2019-01-29 | 蒋世杰 | Extractor of orthopedic slipped screws |
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| CN110623722A (en) | 2019-12-31 |
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