CN113288389B - Improved screw driver for femur neck hollow nail - Google Patents
Improved screw driver for femur neck hollow nail Download PDFInfo
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- CN113288389B CN113288389B CN202110527981.5A CN202110527981A CN113288389B CN 113288389 B CN113288389 B CN 113288389B CN 202110527981 A CN202110527981 A CN 202110527981A CN 113288389 B CN113288389 B CN 113288389B
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- tubular metal
- cylinder
- wall
- interception
- seat
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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
- A61B17/8875—Screwdrivers, spanners or wrenches
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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
Abstract
The invention relates to the technical field of medical supplies, in particular to an improved femur neck hollow nail screwdriver which comprises a cone-changing pipe, wherein one end of the cone-changing pipe is provided with a hollow nail, one end of the hollow nail extends into the cone-changing pipe, tubular metal wires are penetrated into the cone-changing pipe and the hollow nail, one end of each tubular metal wire is fixedly connected with a rubber air bag, the other end of each tubular metal wire is fixedly connected with an interception seat, a plurality of interception units which are uniformly distributed are annularly arranged on the outer wall of each interception seat, a spring, a clamping cylinder and a piston column are arranged at the axial center position of each interception seat.
Description
Technical Field
The invention relates to the technical field of medical supplies, in particular to an improved screw driver for a femur neck hollow nail.
Background
The fracture of the femur neck fracture patient can be fixed by the hollow nail, but the situation that the hollow nail is placed too deeply occurs clinically. Once the bone is placed in the bone cavity and is taken out deeply, the wound on the patient is large, a self-made auxiliary tool (made of sternum steel wires) is adopted to assist in taking out the hollow nails close to the pelvic cavity, so that the internal fixation of bone removal, or incision of the iliofin access or the STOPA access to take out the hollow nails is avoided. The improved hollow nail screwdriver with the scale marks is used, the insertion depth of the hollow nail can be estimated before the nail is placed, the safety of the nail placement is improved, and the clinical use is convenient.
Disclosure of Invention
The invention aims to provide an improved screw driver for a femoral neck hollow nail, which solves the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an improve hollow nail screwdriver of femoral neck, includes and changes the taper pipe, the one end that changes the taper pipe is provided with hollow nail, and the one end that hollow nail extends to in changing the taper pipe, and all runs through in changing taper pipe and the hollow nail has tubular wire, the one end fixedly connected with rubber gasbag of tubular wire, the other end fixedly connected with interception seat of tubular wire, the ring is equipped with a plurality of evenly distributed's interception unit on interception seat's the outer wall, interception seat's axle center position is provided with spring, screens section of thick bamboo and piston post, screens section of thick bamboo's one end contact has the spring, screens section of thick bamboo's the other end contact has the piston post, one side transmission of piston post is connected with the interception unit, be provided with the guide cylinder in the screwdriver pipe inner chamber of hollow nail one end, a plurality of evenly distributed's gas pockets have been seted up on the tubular wire casing of rubber gasbag one side, fixedly connected with pull ring on the tubular wire of hollow nail on keeping away from on the one end tip that changes the taper pipe.
Preferably, the interception unit comprises a central shaft and a control body, the control body is arranged in a plate groove formed in the outer wall of the interception seat, the control body is penetrated with the central shaft, and the end part of the central shaft is fixed on the interception seat.
Preferably, the control body is a cylinder one side integrally connected prism, the central shaft is movably sleeved in the middle of the cylinder of the control body, a plurality of evenly distributed convex teeth are fixed on the outer wall of one side of the cylinder of the control body, a plurality of evenly distributed tooth grooves are formed in one side wall of the piston column, and the control body is in meshed transmission connection with the piston column.
Preferably, the shape of the interception seat is that one side of a cylinder is integrally connected with a cone shell, a piston column and a spring are movably sleeved in the cylinder of the interception seat, and the clamping cylinder is fixed on the inner cavity wall of the cylinder of the interception seat.
Preferably, the outer wall of the hollow nail is fixedly provided with a plurality of evenly distributed guide prisms in a ring mode, the guide prisms partially protrude into prism sliding grooves formed in the inner wall of the end portion of the screwdriver pipe in a ring mode, scale color layers are arranged on the tubular metal wires, the guide cylinder is fixed on the inner cavity wall of the cone changing pipe, the inner wall of the end portion, far away from the tubular metal wires, of the guide cylinder is in a round angle shape, and the tubular metal wires penetrate through the middle of the guide cylinder.
Preferably, the pull ring is a straight rod fixedly connected with the middle part of the circular ring, one end of the straight rod of the pull ring is fixed on the tubular metal wire, and the circular ring of the pull ring is sleeved outside the tubular metal wire.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, on the basis that the screwdriver tube rotates to drive the hollow nails, the tubular metal wires are additionally provided with the blocking seat, and the blocking seat drives the hollow nails through the control bodies, so that the hollow nails are ensured to be smoothly pulled out from a human body, and a worker is bound on the pull ring by using a rope in advance, so that the tubular metal wires are conveniently pulled from multiple angles;
2. the guide needle is placed in the screwdriver before the hollow nail is screwed in to reach the fracture, the mark of the interface between the scale of the screwdriver and the skin is observed, when the hollow nail is placed in, the mark scale of the skin and the mark scale of the original depth measuring screwdriver are basically consistent, then the screw is stopped, the depth is determined through perspective, the perspective times and the operation time in the operation are saved, and the safety of the nail placement is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an intercept seat profile;
FIG. 3 is a schematic view of the structure of the interception seat;
fig. 4 is a schematic view of a pull ring structure.
In the figure: taper pipe 1, hollow nail 2, tubular metal wire 3, rubber air bag 4, interception seat 5, interception unit 6, spring 7, clamping cylinder 8, piston column 9, guide cylinder 10, air hole 11, pull ring 12, screw thread 13, central shaft 14, control body 15, guide prism 16, prism chute 17, scale color image layer 18, control panel 19, protruding tooth 20, tooth groove 21.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Based on the technical solutions of the present invention, all other embodiments obtained by a person skilled in the art without making any creative effort fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: an improved femur neck hollow nail screwdriver comprises a cone changing tube 1, one end of the cone changing tube 1 is provided with a hollow nail 2, one end of the hollow nail 2 extends into the cone changing tube 1, tubular metal wires 3 are penetrated in the cone changing tube 1 and the hollow nail 2, one end of each tubular metal wire 3 is fixedly connected with a rubber air bag 4, the other end of each tubular metal wire 3 is fixedly connected with an interception seat 5, a plurality of interception units 6 which are uniformly distributed are annularly arranged on the outer wall of each interception seat 5, a spring 7, a clamping cylinder 8 and a piston column 9 are arranged at the axial center position of each interception seat 5, one end of the clamping cylinder 8 is contacted with the spring 7, the other end of the clamping cylinder 8 is contacted with the piston column 9, one side of the piston column 9 is in transmission connection with the interception units 6, a guide cylinder 10 is arranged in the inner cavity of the cone changing tube 1 at one end of the hollow nail 2, a plurality of air holes 11 which are uniformly distributed are formed in the shell of the tubular metal wire 3 at one side of the rubber air bag 4, the tubular metal wire 3 at one side of the screwdriver tube 1 is fixedly connected with a pull ring 12, the end part of the hollow nail 2 far away from the cone changing tube 1 is provided with threads 13, the position relation of each part is understood by referring to figure 1, the hollow nail 2 is inserted into the femur of a human body, the tubular metal wire 3 is manually inserted into the hollow nail 2 when taken out until one end of the interception seat 5 extends out of the hollow nail 2, the spring 7 rebounds to push the piston column 9, the piston column 9 moves to drive a plurality of annularly arranged control bodies 15, the plurality of control bodies 15 rotate around the interception seat 5 to be unfolded, when the tubular metal wire 3 is pulled in this way, the interception seat 5 drives the plurality of control bodies 15, the control bodies 15 drive the hollow nail 2, thereby assisting the drawing work of the hollow nail 2, a doctor can manually grip the rubber air bag 4, the air pressure in the tubular metal wire 3 is increased in a short time, the air pressure forces the piston column 9 to reversely move, thereby forcing the control bodies 15 to retract into the interception seat 5 so that the tubular wire 3 can be extracted from the hollow spike 2 without driving the hollow spike 2.
The interception unit 6 comprises a central shaft 14 and a control body 15, the control body 15 is arranged in a plate groove formed in the outer wall of the interception seat 5, the central shaft 14 penetrates through the control body 15, and the end part of the central shaft 14 is fixed on the interception seat 5.
The control body 15 is now a cylinder one side integrally connected prism, the central shaft 14 has been cup jointed in the cylinder middle part activity of control body 15, is fixed with a plurality of evenly distributed's convex tooth 20 on the cylinder one side outer wall of control body 15, has seted up a plurality of evenly distributed's tooth's socket 21 on the lateral wall of piston post 9, and control body 15 and piston post 9 meshing transmission connection.
The shape of the interception seat 5 is that one side of a cylinder is integrally connected with a cone shell, a piston column 9 and a spring 7 are movably sleeved in the cylinder of the interception seat 5, and a clamping cylinder 8 is fixed on the inner cavity wall of the cylinder of the interception seat 5.
The outer wall of the hollow nail 2 is fixedly provided with a plurality of evenly distributed guide prisms 16 in a ring, part of the guide prisms 16 protrudes into a prism chute 17 which is annularly arranged on the inner wall of the end part of the screwdriver tube 1, the tubular metal wire 3 is provided with a scale color layer 18, the guide cylinder 10 is fixed on the inner cavity wall of the screwdriver tube 1, the inner wall of the end part of the guide cylinder 10 far away from the tubular metal wire 3 is in a round angle shape, and the tubular metal wire 3 penetrates through the middle part of the guide cylinder 10.
The pull ring 12 is now a straight rod fixedly connected with the middle part of a circular ring, one end of the straight rod of the pull ring 12 is fixed on the tubular metal wire 3, and the circular ring of the pull ring 12 is sleeved outside the tubular metal wire 3.
Working principle: the method comprises the steps of minimally invasive placement of a hollow nail guide needle through skin, deep placement of a screw with a proper length in a perspective view, deep penetration of the screw into the acetabulum by the hollow nail above the perspective view, reverse screw out of the screw, no effect on the screw, communication expansion of a closed incision, reaching bone, complete bone penetration of the tail of the screw, reverse rotation of a hollow nail screwdriver, no removal of the screw by taking out the screw, bending of a sternal wire from the tail side into the screwdriver, self-made auxiliary removal tool, reverse rotation of the screwdriver, gentle traction of the sternal wire, slow rotation of the hollow nail with an overlong length, replacement of the hollow nail with a proper thickness increasing gasket, thorough wound flushing, layer by layer stitching after the operation, closed reduction of the hollow nail of the femur neck, penetration of the hollow nail, no effect on the femoral head and the same side acetabulum if the bone is too loose by the patient, direct reverse rotation of the screwdriver is difficult due to no bone and thread friction, bending of the screw wire in the reverse rotation direction, taking out of the steel wire at the position of the sternum screw, auxiliary rotation of the screwdriver, taking out of the hollow nail after the hollow nail is performed by taking out of the hollow nail through the iliac bone, no intention of the hollow nail is achieved, and no problem of deep penetration is avoided when the hollow nail is marked after the hollow nail is cut after the hollow cut, and the hollow nail is not has been increased, and the deep penetration is not marked after the deep penetration is improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an improvement femur neck hollow nail screwdriver, includes to change taper pipe (1), its characterized in that: the screw driver is characterized in that one end of the screw driver tube (1) is provided with a hollow screw (2), one end of the hollow screw (2) extends into the screw driver tube (1), tubular metal wires (3) are penetrated in the screw driver tube (1) and the hollow screw (2), one end fixedly connected with a rubber air bag (4) of the tubular metal wires (3), the other end fixedly connected with a blocking seat (5) of the tubular metal wires (3), a plurality of blocking units (6) which are uniformly distributed are annularly arranged on the outer wall of the blocking seat (5), a spring (7), a clamping cylinder (8) and a piston column (9) are arranged at the axial center position of the blocking seat (5), one end of the clamping cylinder (8) is contacted with the spring (7), the other end of the clamping cylinder (8) is contacted with the piston column (9), one side of the piston column (9) is in transmission connection with the blocking unit (6), a guide cylinder (10) is arranged in an inner cavity of the screw driver tube (1) at one side of the hollow screw (2), a plurality of uniformly distributed blocking units (3) are annularly arranged on the outer wall of the tubular metal wires (3) at one side of the rubber air bag (4), a plurality of uniformly distributed air holes (11) are uniformly distributed on the screw driver tube (1), one side of the hollow screw (3) is connected with the screw driver tube (12) is further provided with one end of the hollow screw driver tube (12), the interception unit (6) comprises a central shaft (14) and a control body (15), the control body (15) is arranged in a plate groove formed in the outer wall of the interception seat (5), the central shaft (14) penetrates through the control body (15), the end part of the central shaft (14) is fixed on the interception seat (5), the inner wall of one end part of the guide cylinder (10), which is far away from the tubular metal wire (3), is in a round angle shape, and the tubular metal wire (3) penetrates through the middle part of the guide cylinder (10).
2. An improved femoral neck cannulated nail driver according to claim 1, wherein: the control body (15) is a cylinder side integrated prism, the central shaft (14) is movably sleeved at the middle part of the cylinder of the control body (15), a plurality of uniformly distributed convex teeth (20) are fixed on the outer wall of one side of the cylinder of the control body (15), a plurality of uniformly distributed tooth grooves (21) are formed in one side wall of the piston column (9), and the control body (15) is in meshed transmission connection with the piston column (9).
3. An improved femoral neck cannulated nail driver according to claim 1, wherein: the shape of the interception seat (5) is that one side of a cylinder is integrally connected with a cone shell, a piston column (9) and a spring (7) are movably sleeved in the cylinder of the interception seat (5), and the clamping cylinder (8) is fixed on the inner cavity wall of the cylinder of the interception seat (5).
4. An improved femoral neck cannulated nail driver according to claim 1, wherein: the outer wall of the hollow nail (2) is fixedly provided with a plurality of evenly distributed guide prisms (16), the guide prisms (16) are partially protruded into prism sliding grooves (17) formed in the inner wall of the end part of the screwdriver pipe (1) in a surrounding mode, scale color layers (18) are arranged on the tubular metal wires (3), the guide cylinder (10) is fixed on the inner cavity wall of the cone-changing pipe (1), the inner wall of the end part of the guide cylinder (10), far away from the tubular metal wires (3), is in a round-angle shape, and the tubular metal wires (3) penetrate through the middle part of the guide cylinder (10).
5. An improved femoral neck cannulated nail driver according to claim 1, wherein: the pull ring (12) is fixedly connected with a straight rod at the middle part of the circular ring, one end of the straight rod of the pull ring (12) is fixed on the tubular metal wire (3), and the circular ring of the pull ring (12) is sleeved outside the tubular metal wire (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110527981.5A CN113288389B (en) | 2021-05-14 | 2021-05-14 | Improved screw driver for femur neck hollow nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110527981.5A CN113288389B (en) | 2021-05-14 | 2021-05-14 | Improved screw driver for femur neck hollow nail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113288389A CN113288389A (en) | 2021-08-24 |
| CN113288389B true CN113288389B (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110527981.5A Active CN113288389B (en) | 2021-05-14 | 2021-05-14 | Improved screw driver for femur neck hollow nail |
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| Country | Link |
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| CN (1) | CN113288389B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2207912Y (en) * | 1994-08-10 | 1995-09-20 | 程英亭 | Multi-functional combined screwdriver |
| CN106264703A (en) * | 2016-09-08 | 2017-01-04 | 河北医科大学第三医院 | A kind of can be with the hollow screw screwdriver of fixation guide pin |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527726A (en) * | 1983-07-18 | 1985-07-09 | Minnesota Mining And Manufacturing Company | Bone stapler |
| JP2008267513A (en) * | 2007-04-20 | 2008-11-06 | Nhk Spring Co Ltd | Metal bellows and metal bellows processing method |
| JP2010127415A (en) * | 2008-11-28 | 2010-06-10 | Fp Corporation Ltd | Screw nail |
| EP2688631B1 (en) * | 2011-03-25 | 2021-12-01 | Nordson Corporation | Apparatus and methods for accessing and dilating bone structures using a narrow gauge cannula |
| US9968379B2 (en) * | 2012-10-04 | 2018-05-15 | Loubert S. Suddaby | Subcutaneous implantable device for gradually aligning a spine and subcutaneous implantable device for gradually lengthening a bone |
| CN203107267U (en) * | 2013-02-05 | 2013-08-07 | 山东省立医院 | Orthopedic nail taking device |
| WO2015068027A2 (en) * | 2013-11-11 | 2015-05-14 | Orthofix S.R.L. | Endosseous screw assembly and internal fixation system comprising said endosseous screw assembly |
| CN206355129U (en) * | 2016-09-08 | 2017-07-28 | 河北医科大学第三医院 | It is a kind of can be with the hollow screw screwdriver of fixation guide pin |
| CN206453843U (en) * | 2016-11-09 | 2017-09-01 | 漯河医学高等专科学校 | A kind of device for taking out broken nail of Orthopeadic Surgery |
| CN111281526A (en) * | 2020-03-17 | 2020-06-16 | 山东大学齐鲁医院(青岛) | Micro-wound centrally-mounted hollow screw extractor |
-
2021
- 2021-05-14 CN CN202110527981.5A patent/CN113288389B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2207912Y (en) * | 1994-08-10 | 1995-09-20 | 程英亭 | Multi-functional combined screwdriver |
| CN106264703A (en) * | 2016-09-08 | 2017-01-04 | 河北医科大学第三医院 | A kind of can be with the hollow screw screwdriver of fixation guide pin |
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| Publication number | Publication date |
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| CN113288389A (en) | 2021-08-24 |
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Inventor after: Hou Fushan Inventor after: Xi Kun Inventor after: Zhang Yajun Inventor after: Li Dong Inventor after: Liang Xiao Inventor after: Yang Chaohui Inventor after: Zhao Lei Inventor after: Zhao Feng Inventor after: Fan Wei Inventor after: Wang Bin Inventor after: Yin Yunsheng Inventor before: Hou Fushan Inventor before: Xi Kun Inventor before: Zhang Yajun Inventor before: Li Dong Inventor before: Liang Xiao Inventor before: Yang Chaohui Inventor before: Zhao Lei Inventor before: Zhao Feng Inventor before: Fan Wei Inventor before: Wang Bin Inventor before: Yin Yunsheng |
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