CN208591125U - Metal intramedullary needle breaks stick device - Google Patents
Metal intramedullary needle breaks stick device Download PDFInfo
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- CN208591125U CN208591125U CN201820544341.9U CN201820544341U CN208591125U CN 208591125 U CN208591125 U CN 208591125U CN 201820544341 U CN201820544341 U CN 201820544341U CN 208591125 U CN208591125 U CN 208591125U
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- inner sleeve
- stick device
- intramedullary needle
- spliced body
- breaks
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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 successively protruded out interior octagonal casing 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 in the spliced body by the locking nut, 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 stress The center of circle in hole and the center of circle of the shearing perforation are 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, in particular to a kind of metal intramedullary needle breaks stick device.
Background technique
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 being widely applied, the maximum of metal intramedullary needle is straight
Diameter progressively increases to 4 millimeters with exterior fixing rack, and outer fixed pinning is cooperated to fix the emergency such as pelvic fracture, fracture of calcaneus
Biggish fracture.And its disconnected stick function must be carried out when doctor's implanted metal intramedullary needle by medical instrument tool, it is existing
Disconnected stick device cannot adapt to its disconnected stick function according to the different size model of intramedullary needle.
Utility model content
The purpose of this utility model 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 utility model 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 successively protruded out interior octagonal casing, 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 is the octagonal boss being correspondingly arranged with the interior octagonal casing, the illiciumverum boss protrudes 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 in the stress hole and the shearing perforation
The center of circle be on same circumference.
Preferably, in the disconnected stick device of above-mentioned metal intramedullary needle, the quantity in the stress hole is two, the two stress holes
Diameter be respectively 4.1mm and 3.1mm.
Preferably, in the disconnected stick device of above-mentioned metal intramedullary needle, the quantity of the shearing perforation is three, three shearing perforations
Diameter be respectively 4.1mm, 3.1mm and 2.6mm.
Preferably, in the disconnected stick device of above-mentioned metal intramedullary needle, the inner sleeve bottom is between the spliced body bottom
Gap is no more than 0.05mm.
Preferably, in the disconnected stick device of above-mentioned metal intramedullary needle, 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, in the disconnected stick device of above-mentioned metal intramedullary needle, diameter is sequentially increased three are equipped 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 screw thread are correspondingly arranged with the external screw thread, and the internal diameter of the third stepped hole is greater than the outer diameter of the first step.
Preferably, in the disconnected stick device of above-mentioned metal intramedullary needle, 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 the disconnected stick device of above-mentioned metal intramedullary needle, the outer wall of the spliced body bottom opens up groove, described recessed
Slot is connected to inside the spliced body.
Preferably, above-mentioned metal intramedullary needle break stick device in, the wrenching bar away from the first handle one end 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 the disconnected stick device of above-mentioned metal intramedullary needle, the connecting rod is arranged with away from one end of the spliced body
Second handle.
The stick device compared with the prior art, the advantages of the utility model are: metal intramedullary needle described in the utility model breaks
On the octagonal boss that the interior octagonal set pipe sleeve of rotary spanner front end covers inside, is rotated back and forth by left and right and pressure is applied to it,
Three shearing perforations are designed in spliced body bottom end, convenient for filling in the metal intramedullary needle of different size model；When operation, doctor is according to metal
Intramedullary needle specifications and models select the hole of different pore size size, are broken in stick device with this to fill in the metal intramedullary needle, cooperation rotation
Turn spanner or so and rotate back and forth to apply pressure and carry out disconnected stick, it is simple to operate, the surgical time is reduced, patient's pain is mitigated
It is bitter.
Detailed description of the invention
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 technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 show the structural schematic diagram of the disconnected stick device of metal intramedullary needle in the utility model specific embodiment.
Fig. 2 show the structural schematic diagram of inner sleeve in the utility model specific embodiment.
Fig. 3 show the structural schematic diagram of spliced body in the utility model specific embodiment.
Fig. 4 show the structural schematic diagram of locking nut in the utility model specific embodiment.
Fig. 5 show the schematic cross-section of inner sleeve in the utility model specific embodiment.
Fig. 6 show the bottom view of spliced body in the utility model specific embodiment.
Fig. 7 show the structural schematic diagram of interior illiciumverum casing in the utility model specific embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Detailed description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Join the disconnected stick device of metal intramedullary needle shown in Fig. 1 to Fig. 6, 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,
Wrenching bar 110 has successively protruded out interior octagonal casing 130 away from one end of first handle 120, and the stick device 200 that breaks includes connecting rod 210, interior
Set 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 lock
Tight 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
One end of locking nut 240 protrudes out the octagonal boss 221 being correspondingly arranged with interior octagonal casing 130, and octagonal boss 221 is prominent
In locking nut 240,220 bottom of inner sleeve is equipped with several stress holes 222, and 230 bottom of spliced body is equipped with several shearing perforations 231, answers
The center of circle in power hole 222 and the center of circle of shearing perforation 231 are 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
It is logical on the octagonal boss that the interior octagonal set pipe sleeve of the rotary spanner front end of the disconnected stick device of metal intramedullary needle described in utility model covers inside
It crosses left and right and rotates back and forth and apply to it pressure, multiple shearing perforations are designed in spliced body bottom end, convenient for filling in different size model
Metal intramedullary needle；When operation, doctor selects the hole of different pore size size according to metal intramedullary needle specifications and models, is filled in this
The 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,
The surgical time is reduced, patient's pain is mitigated.
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 be three, the diameter 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 4mm, the metal of 2.5mm and its specification below
Intramedullary needle all can 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 all can be completed to cut off by the shearing perforation of 4.1mm, and stress hole can
With unrestricted choice, same metal intramedullary needle break stick device can to all specifications metal intramedullary needle cutting.
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
Two stepped holes 242 and third stepped hole 243, the inwall processing in second step hole have internal screw thread, and internal screw thread is corresponding with external screw thread to be set
It sets, the internal diameter of third stepped hole is greater 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, guarantee for inner sleeve rotation to be 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 connected to inside spliced body 230.
In the technical solution, convenient for controlling inner sleeve bottom to the gap between spliced body bottom.
Further, wrenching bar 110 successively protrudes out end to end convex extension part 140 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 avoids interfering in both hands operating process in 165 ° of angle settings between convex extension part 140 and bending part 150.
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 set pipe sleeve of the rotary spanner front end of the disconnected stick device of metal intramedullary needle described in the utility model covers inside
Octagonal boss on, rotate back and forth and apply to it pressure by left and right, three shearing perforations are designed in spliced body bottom end, convenient for filling in
The metal intramedullary needle of different size model；When operation, doctor selects different pore size size according to metal intramedullary needle specifications and models
Hole, broken in stick device with this to fill in the metal intramedullary needle, cooperation rotary spanner or so, which rotates back and forth, to be applied pressure and break
Stick, it is simple to operate, the surgical time is reduced, patient's pain is mitigated
It should be noted that, in this document, 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 including 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 embodiment 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 scope 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 successively protruded out interior octagonal casing, 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 in the spliced body by the locking nut, 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 and the center of circle of the shearing perforation are in same 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, 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 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 Three rank holes of secondary increase, respectively first step hole, second step hole and third stepped hole, the inner wall in the second step hole add Work has internal screw thread, and the internal screw thread is correspondingly arranged with the external screw thread, and the internal diameter of the third stepped hole is greater 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 connected to 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 successively protrudes out end to end convex extension part and bending part, 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 |
|---|---|---|---|
| CN201820544341.9U CN208591125U (en) | 2018-04-17 | 2018-04-17 | Metal intramedullary needle breaks stick device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820544341.9U CN208591125U (en) | 2018-04-17 | 2018-04-17 | Metal intramedullary needle breaks stick device |
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| Publication Number | Publication Date |
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| CN208591125U true CN208591125U (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820544341.9U Active CN208591125U (en) | 2018-04-17 | 2018-04-17 | Metal intramedullary needle breaks stick device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108403203A (en) * | 2018-04-17 | 2018-08-17 | 苏州欣荣博尔特医疗器械有限公司 | The disconnected stick device of metal intramedullary needle |
-
2018
- 2018-04-17 CN CN201820544341.9U patent/CN208591125U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108403203A (en) * | 2018-04-17 | 2018-08-17 | 苏州欣荣博尔特医疗器械有限公司 | The disconnected stick device of metal intramedullary needle |
| CN108403203B (en) * | 2018-04-17 | 2024-03-29 | 苏州欣荣博尔特医疗器械有限公司 | Metal intramedullary pin breaker |
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