CN108403203A - The disconnected stick device of metal intramedullary needle - Google Patents
The disconnected stick device of metal intramedullary needle Download PDFInfo
- Publication number
- CN108403203A CN108403203A CN201810343394.9A CN201810343394A CN108403203A CN 108403203 A CN108403203 A CN 108403203A CN 201810343394 A CN201810343394 A CN 201810343394A CN 108403203 A CN108403203 A CN 108403203A
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- stick device
- intramedullary needle
- spliced body
- breaks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 50
- 238000010008 shearing Methods 0.000 claims abstract description 18
- 235000008227 Illicium verum Nutrition 0.000 claims abstract description 4
- 240000007232 Illicium verum Species 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000011708 Avulsion fracture Diseases 0.000 description 1
- 206010034246 Pelvic fractures Diseases 0.000 description 1
- 210000000459 calcaneus Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- 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
This application discloses a kind of disconnected stick devices of metal intramedullary needle,Including rotary spanner and disconnected stick device,The rotary spanner includes wrenching bar and first handle,The first handle is sheathed on one end of the wrenching bar,The wrenching bar has protruded out interior octagonal casing successively away from one end of the first handle,The disconnected stick device includes connecting rod,Inner sleeve,Spliced body and locking nut,The inner sleeve and spliced body are back cover tubular structure,The inner sleeve is rotatably fixed on by the locking nut in the spliced body,The connecting rod is perpendicularly fixed at the spliced body outer wall,The inner sleeve protrudes out the octagonal boss being correspondingly arranged with the interior octagonal casing close to one end of the locking nut,The illiciumverum boss protrudes from the locking nut,The inner sleeve bottom is equipped with several stress holes,The spliced body bottom is equipped with several shearing perforations,The center of circle in the stress hole is in the center of circle of the shearing perforation on same circumference.This application is suitable for the metal intramedullary needle of different size, easy to operate.
Description
Technical field
This application involves the new device and technology of first aid and rehabilitation, more particularly to the disconnected stick device of a kind of metal intramedullary needle.
Background technology
Metal intramedullary needle is generally fixed to 20 centimeters or so as a kind of common internal fixation material of orthopaedics, length,
Diameter has different several specifications between 0.5-2 millimeters.For fixing the short and small bone fractured or avulsion fracture iso-stress is little
Folding is fixed, and is also commonly used in bone surgery in the fixation of interim sclerite.Due to extensive use, the maximum of metal intramedullary needle is straight
Diameter progressively increases to 4 millimeters with exterior fixing rack, coordinates outer fixed pinning emergent to fix pelvic fracture, fracture of calcaneus etc.
Larger fracture.And its disconnected stick function must be carried out by medical instrument tool when doctor's implanted metal intramedullary needle, it is existing
Disconnected stick device cannot adapt to its disconnected stick function according to the different size model of intramedullary needle.
Invention content
The purpose of the present invention is to provide a kind of disconnected stick devices of metal intramedullary needle, to overcome deficiency in the prior art.
To achieve the above object, the present invention provides the following technical solutions：
The embodiment of the present application discloses a kind of disconnected stick device of metal intramedullary needle, including rotary spanner and disconnected stick device, the rotation
Spanner includes wrenching bar and first handle, and the first handle is sheathed on one end of the wrenching bar, and the wrenching bar deviates from institute
The one end for stating first handle has protruded out interior octagonal casing successively, and the disconnected stick device includes connecting rod, inner sleeve, spliced body and locking screw
Mother, the inner sleeve and spliced body are back cover tubular structure, and the inner sleeve is rotatably fixed on described by the locking nut
In spliced body, the connecting rod is perpendicularly fixed at the spliced body outer wall, and the inner sleeve is protruded out close to one end of the locking nut
There are the octagonal boss being correspondingly arranged with the interior octagonal casing, the illiciumverum boss to protrude from the locking nut, the inner sleeve
Bottom is equipped with several stress holes, and the spliced body bottom is equipped with several shearing perforations, the center of circle and the shearing perforation in the stress hole
The center of circle be on same circumference.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the quantity in the stress hole is two, the two stress holes
Diameter be respectively 4.1mm and 3.1mm.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the quantity of the shearing perforation is three, is cut described in three
The diameter of cut hole is respectively 4.1mm, 3.1mm and 2.6mm.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the inner sleeve bottom is between the spliced body bottom
Gap is no more than 0.05mm.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the spliced body is recessed close to one end of the locking nut
Stretching has two-stage step, respectively first step and second step, and the second step outer wall is machined with external screw thread.
Preferably, diameter is sequentially increased three are equipped in above-mentioned metal intramedullary needle breaks stick device, in the locking nut
The inwall processing of rank hole, respectively first step hole, second step hole and third stepped hole, the second step hole has interior spiral shell
Line, the internal thread are correspondingly arranged with the external screw thread, and the internal diameter of the third stepped hole is more than the outer diameter of the first step.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the inner sleeve is protruded out close to one end of the locking nut
There is changeover portion, the end of the changeover portion is the octagonal boss, and the outer diameter of the changeover portion is less than the first step hole
Internal diameter, the internal diameter in the first step hole are less than the outer diameter of the inner sleeve.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the outer wall of the spliced body bottom opens up groove, described recessed
Slot is communicated in inside the spliced body.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the wrenching bar away from one end of the first handle according to
It is secondary to protrude out end to end convex extension part and bending part, angled setting between the convex extension part and the bending part, the folding
Turn of bilge has protruded out the octagonal casing away from one end of the convex extension part.
Preferably, in above-mentioned metal intramedullary needle breaks stick device, the connecting rod is arranged with away from one end of the spliced body
Second handle.
Compared with the prior art, the advantages of the present invention are as follows：The rotary spanner of the disconnected stick device of metal intramedullary needle of the present invention
The interior octagonal casing of front end is sleeved on the octagonal boss of inner sleeve, is rotated back and forth by left and right and is applied pressure, spliced body bottom to it
Three shearing perforations of end design, convenient for filling in the metal intramedullary needle of different size model；When operation, doctor advises according to metal intramedullary needle
Lattice number selects the hole of different pore size size, is broken in stick device to fill in the metal intramedullary needle with this, cooperation rotary spanner is left
The right side rotates back and forth application pressure and carries out disconnected stick, simple to operate, reduces the surgical time, mitigates patient's pain.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 show the structural schematic diagram of the disconnected stick device of metal intramedullary needle in the specific embodiment of the invention.
Fig. 2 show the structural schematic diagram of inner sleeve in the specific embodiment of the invention.
Fig. 3 show the structural schematic diagram of spliced body in the specific embodiment of the invention.
Fig. 4 show the structural schematic diagram of locking nut in the specific embodiment of the invention.
Fig. 5 show the schematic cross-section of inner sleeve in the specific embodiment of the invention.
Fig. 6 show the upward view of spliced body in the specific embodiment of the invention.
Fig. 7 show the structural schematic diagram of interior illiciumverum casing in the specific embodiment of the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out detailed retouch
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
Join shown in Fig. 1 to Fig. 6, the disconnected stick device of the metal intramedullary needle in the present embodiment, including rotary spanner 100 and disconnected stick device
200, rotary spanner 100 includes wrenching bar 110 and first handle 120, and first handle 120 is sheathed on one end of wrenching bar 110, pulls
Hand lever 110 has protruded out interior octagonal casing 130 successively away from one end of first handle 120, and the stick device 200 that breaks includes connecting rod 210, inner sleeve
220, spliced body 230 and locking nut 240, inner sleeve 220 and spliced body 230 are back cover tubular structure, and inner sleeve 220 passes through locking
Nut 240 is rotatably fixed in spliced body 230, and connecting rod 210 is perpendicularly fixed at 230 outer wall of spliced body, and inner sleeve 220 is close to locking
One end of nut 240 protrudes out the octagonal boss 221 being correspondingly arranged with interior octagonal casing 130, and octagonal boss 221 protrudes from locking
Nut 240,220 bottom of inner sleeve are equipped with several stress holes 222, and 230 bottom of spliced body is equipped with several shearing perforations 231, stress hole 222
The center of circle of the center of circle and shearing perforation 231 be on same circumference.
In the technical solution, inner sleeve 220 and spliced body 230 are the hollow cylinder bottom of with, i.e. back cover tubular structure, this
The interior octagonal casing for inventing the rotary spanner front end of the disconnected stick device of the metal intramedullary needle is sleeved on the octagonal boss of inner sleeve, passes through a left side
The right side rotates back and forth and applies to it pressure, and multiple shearing perforations are designed in spliced body bottom end, convenient for filling in the metal of different size model
Intramedullary needle；When operation, doctor selects the hole of different pore size size according to metal intramedullary needle specifications and models, described to fill in this
Metal intramedullary needle breaks in stick device, and cooperation rotary spanner or so rotates back and forth application pressure and carries out disconnected stick, simple to operate, reduces
The surgical time mitigates patient's pain.
Further, the quantity in stress hole 222 is two, and the diameter in two stress holes 222 is respectively 4.1mm and 3.1mm.
Further, the quantity of shearing perforation 231 is three, the diameters of three shearing perforations 231 be respectively 4.1mm, 3.1mm and
2.6mm。
In above-mentioned two technical solution, the maximum specification of metal intramedullary needle is the metal of 4mm, 2.5mm and its specification below
Intramedullary needle can all be completed to cut off by the shearing perforation of 2.6mm, and the metal intramedullary needle of 3mm all can cutting by 3.1mm
Cut hole is completed to cut off, and the metal intramedullary needle of 3.5mm and 4mm can all be completed to cut off by the shearing perforation of 4.1mm, and stress hole can
With unrestricted choice, the disconnected stick device of same metal intramedullary needle can cut off the metal intramedullary needle of all specifications.
Further, 220 bottom of inner sleeve is no more than 0.05mm to the gap between 230 bottom of spliced body.
In the technical solution, the fracture after avoiding metal intramedullary needle from cutting off generates burr.
Further, spliced body 230 has two-stage step close to recessed stretch in one end of locking nut 240, respectively first step
232 and second step 233, second step outer wall be machined with external screw thread.
Further, three rank holes being sequentially increased equipped with diameter in locking nut 240, respectively first step hole 241, the
The inwall processing of two stepped holes 242 and third stepped hole 243, second step hole has internal thread, and internal thread is corresponding with external screw thread to be set
It sets, the internal diameter of third stepped hole is more than the outer diameter of first step.
Further, inner sleeve 220 has protruded out changeover portion 223 close to one end of locking nut 240, and the end of changeover portion is eight
Angle boss 221, the outer diameter of changeover portion are less than the internal diameter in first step hole, and the internal diameter in first step hole is less than the outer diameter of inner sleeve 220.
In above-mentioned three technical solution, ensure inner sleeve rotation being fixed in spliced body, it can be certainly between inner sleeve and spliced body
By rotating, without stuck.
Further, the outer wall of 230 bottom of spliced body opens up groove 234, and groove is communicated in inside spliced body 230.
In the technical solution, convenient for control inner sleeve bottom to the gap between spliced body bottom.
Further, wrenching bar 110 protrudes out end to end convex extension part 140 successively away from one end of first handle 120
With bending part 150, angled setting between convex extension part 140 and bending part 150, bending part 150 is protruded out away from one end of convex extension part
There is octagonal casing 130.
In the technical solution, wrenching bar 110, octagonal casing 130, convex extension part 140 and bending part 150 are made of one piece,
Proof strength is arranged in 165 ° of angles between convex extension part 140 and bending part 150, avoids interfering in both hands operating process.
Further, connecting rod 210 is arranged with second handle 250 away from one end of spliced body 230.
In the technical solution, holds and exert a force convenient for doctor.
To sum up, the interior octagonal casing of the rotary spanner front end of the disconnected stick device of metal intramedullary needle of the present invention is sleeved on the eight of inner sleeve
On the boss of angle, pressure is rotated back and forth and applies to it by left and right, three shearing perforations are designed in spliced body bottom end, convenient for filling in difference
The metal intramedullary needle of specifications and models；When operation, doctor selects the hole of different pore size size according to metal intramedullary needle specifications and models,
Broken in stick device to fill in the metal intramedullary needle with this, cooperation rotary spanner or so, which rotates back and forth, to be applied pressure and carry out disconnected stick, behaviour
Make simple and convenient, the reduction surgical time, mitigates patient's pain
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including element.
The above is only the specific implementation mode of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection domain of the application.
Claims (10)
- The stick device 1. a kind of metal intramedullary needle breaks, which is characterized in that including rotary spanner and disconnected stick device, the rotary spanner includes pulling Hand lever and first handle, the first handle are sheathed on one end of the wrenching bar, and the wrenching bar deviates from the first handle One end protruded out interior octagonal casing successively, the disconnected stick device includes connecting rod, inner sleeve, spliced body and locking nut, the inner sleeve It is back cover tubular structure with spliced body, the inner sleeve is rotatably fixed on by the locking nut in the spliced body, institute It states connecting rod and is perpendicularly fixed at the spliced body outer wall, the inner sleeve has protruded out and described interior eight close to one end of the locking nut The octagonal boss that angle casing is correspondingly arranged, the illiciumverum boss protrude from the locking nut, and the inner sleeve bottom is equipped with several Stress hole, the spliced body bottom are equipped with several shearing perforations, and the center of circle in the stress hole is in same with the center of circle of the shearing perforation On one circumference.
- The stick device 2. metal intramedullary needle according to claim 1 breaks, it is characterised in that：The quantity in the stress hole is two, The diameter in the two stress holes is respectively 4.1mm and 3.1mm.
- The stick device 3. metal intramedullary needle according to claim 1 breaks, it is characterised in that：The quantity of the shearing perforation is three A, the diameter of three shearing perforations is respectively 4.1mm, 3.1mm and 2.6mm.
- The stick device 4. metal intramedullary needle according to claim 1 breaks, it is characterised in that：The inner sleeve bottom is to the spliced body Gap between bottom is no more than 0.05mm.
- The stick device 5. metal intramedullary needle according to claim 1 breaks, it is characterised in that：The spliced body is close to the locking screw Female recessed stretch in one end has two-stage step, and respectively first step and second step, the second step outer wall are machined with external screw thread.
- The stick device 6. metal intramedullary needle according to claim 5 breaks, it is characterised in that：Be equipped in the locking nut diameter according to Secondary increased three rank hole, respectively first step hole, second step hole and third stepped hole, the inner wall in the second step hole add Work has internal thread, the internal thread to be correspondingly arranged with the external screw thread, and the internal diameter of the third stepped hole is more than the First The outer diameter of rank.
- The stick device 7. metal intramedullary needle according to claim 6 breaks, it is characterised in that：The inner sleeve is close to the locking nut One end protruded out changeover portion, the end of the changeover portion is the octagonal boss, and the outer diameter of the changeover portion is less than described the The internal diameter of one stepped hole, the internal diameter in the first step hole are less than the outer diameter of the inner sleeve.
- The stick device 8. metal intramedullary needle according to claim 1 breaks, it is characterised in that：The outer wall of the spliced body bottom opens up Groove, the groove are communicated in inside the spliced body.
- The stick device 9. metal intramedullary needle according to claim 1 breaks, it is characterised in that：The wrenching bar is away from described first-hand One end of handle protrudes out end to end convex extension part and bending part successively, angled between the convex extension part and the bending part to set It sets, the bending part has protruded out the octagonal casing away from one end of the convex extension part.
- The stick device 10. metal intramedullary needle according to claim 1 breaks, it is characterised in that：The connecting rod deviates from the spliced body One end be arranged with second handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343394.9A CN108403203B (en) | 2018-04-17 | 2018-04-17 | Metal intramedullary pin breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343394.9A CN108403203B (en) | 2018-04-17 | 2018-04-17 | Metal intramedullary pin breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108403203A true CN108403203A (en) | 2018-08-17 |
| CN108403203B CN108403203B (en) | 2024-03-29 |
Family
ID=63135628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810343394.9A Active CN108403203B (en) | 2018-04-17 | 2018-04-17 | Metal intramedullary pin breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108403203B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443941A (en) * | 1981-10-16 | 1984-04-24 | Mcphaul Jack L | Intramedullary pin cutting instrument |
| CN87201601U (en) * | 1987-06-12 | 1987-12-30 | 昌潍医学院 | Intramedullary injection operator |
| CN201227319Y (en) * | 2007-11-21 | 2009-04-29 | 马磊 | Automatic compression anti-rotation intramedullary pin for treating femoral fracture |
| CN206896389U (en) * | 2016-12-26 | 2018-01-19 | 贺新宁 | Scoliosis follows closely rod correction bracket system |
| CN208591125U (en) * | 2018-04-17 | 2019-03-12 | 苏州欣荣博尔特医疗器械有限公司 | Metal intramedullary needle breaks stick device |
-
2018
- 2018-04-17 CN CN201810343394.9A patent/CN108403203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443941A (en) * | 1981-10-16 | 1984-04-24 | Mcphaul Jack L | Intramedullary pin cutting instrument |
| CN87201601U (en) * | 1987-06-12 | 1987-12-30 | 昌潍医学院 | Intramedullary injection operator |
| CN201227319Y (en) * | 2007-11-21 | 2009-04-29 | 马磊 | Automatic compression anti-rotation intramedullary pin for treating femoral fracture |
| CN206896389U (en) * | 2016-12-26 | 2018-01-19 | 贺新宁 | Scoliosis follows closely rod correction bracket system |
| CN208591125U (en) * | 2018-04-17 | 2019-03-12 | 苏州欣荣博尔特医疗器械有限公司 | Metal intramedullary needle breaks stick device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108403203B (en) | 2024-03-29 |
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