CN205411277U - Protective bone needle - Google Patents
Protective bone needle Download PDFInfo
- Publication number
- CN205411277U CN205411277U CN201620131613.3U CN201620131613U CN205411277U CN 205411277 U CN205411277 U CN 205411277U CN 201620131613 U CN201620131613 U CN 201620131613U CN 205411277 U CN205411277 U CN 205411277U
- Authority
- CN
- China
- Prior art keywords
- spicule
- protection
- self
- threaded portion
- peek sheath
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- 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.)
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Links
- 210000000988 bone and bone Anatomy 0.000 title abstract description 14
- 230000001681 protective effect Effects 0.000 title abstract 2
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 50
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 50
- 238000010079 rubber tapping Methods 0.000 claims abstract description 30
- 238000005553 drilling Methods 0.000 claims abstract description 20
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims abstract 10
- 206010061218 Inflammation Diseases 0.000 abstract description 9
- 230000004054 inflammatory process Effects 0.000 abstract description 9
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The embodiment of the utility model provides a protection spicule for solve the spicule among the prior art and easily arouse this technical problem of physics nature inflammation. The embodiment of the utility model provides a technical scheme of protection spicule does: the protective bone needle comprises a needle body and a PEEK sheath positioned outside the needle body; the needle body comprises a self-tapping and self-drilling needle head, a threaded part and a needle tail which are sequentially connected, and the length of the threaded part is greater than that of the PEEK sheath; the interior of PEEK sheath is equipped with the screw hole with screw thread portion screw thread matched with, the PEEK sheath is in the position of screw thread portion is adjustable.
Description
Technical field
This utility model embodiment relates to technical field of medical instruments, particularly relates to a kind of protection spicule.
Background technology
In bone surgery, fracture is fixed by the mode that can often use extenal fixation, in fixation procedure, spicule can be used to insert backbone, plays and connects fixing effect.
Extenal fixation has the features such as little, easy and simple to handle, the functional diversities of operation wound, but postoperative handicapped, the needle track caused to patient loosens and infect the principal element that always govern its development.The main cause causing pin site infection is: physical property inflammation: pin skin interfacial instability, needle track mouth red and swollen heat pain that the stimulation at pin skin interface is caused by friction between pin skin and metal bone needle and oozing out；Biological inflammation: postoperative care is improper, the antibacterial caused infects.
The defect of prior art is, existing spicule is easily that skin touches with threaded engagement, easily causes physical property inflammation.
Utility model content
This utility model embodiment provides one protection spicule, is used for solving spicule of the prior art and easily causes this technical problem of physical property inflammation.
The technical scheme that this utility model embodiment is a kind of protects spicule is:
Protection spicule includes needle body and is positioned at the PEEK sheath outside described needle body；Described needle body includes self tapping self-drilling type syringe needle, threaded portion and the backshank being sequentially connected with, and the length of described threaded portion is more than the length of described PEEK sheath；The inside of described PEEK sheath is provided with the screwed hole matched with threaded portion, and described PEEK sheath is adjustable in the position of described threaded portion.
Preferably, in the technical scheme of above-mentioned protection spicule, described threaded portion is U-shaped screw thread.
Preferably, in the technical scheme of above-mentioned protection spicule, described threaded portion be shaped as cylinder.
Preferably, in the technical scheme of above-mentioned protection spicule, described PEEK sheath is cylinder.
Preferably, in the technical scheme of above-mentioned protection spicule, the outer surface of described PEEK sheath is smooth flat.
Preferably, in the technical scheme of above-mentioned protection spicule, described needle body is formed in one.
Preferably, in the technical scheme of above-mentioned protection spicule, described self tapping self-drilling type syringe needle includes that tapping blade and several move back and cuts groove.
Preferably, in the technical scheme of above-mentioned protection spicule, described tapping blade is positioned at the end of described self tapping self-drilling type syringe needle, described in move back that to cut groove circumferentially disposed along the outer surface of described self tapping self-drilling type syringe needle.
Preferably, in the technical scheme of above-mentioned protection spicule, described tapping blade is cone, and described cone is gradually reduced along the direction area of described backshank extremely described self tapping self-drilling type syringe needle.
Preferably, in the technical scheme of above-mentioned protection spicule, move back described in several and cut groove and arrange at equal intervals.
Technique scheme is used to provide the benefit that:
Owing to the protection spicule in this utility model embodiment includes needle body and is positioned at the PEEK sheath outside needle body, needle body includes self tapping self-drilling type syringe needle, threaded portion and the backshank being sequentially connected with, and the length of threaded portion is more than the length of PEEK sheath；The inside of PEEK sheath is provided with the screwed hole matched with threaded portion; when needle body is squeezed in bone; by PEEK sheath toward backspin; PEEK sheath is adjustable in the position of described threaded portion; until contacting with surface of bone; PEEK sheath is placed in outside needle body, it is possible to protection skin avoids the inflammation caused from the injury of screw thread.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of front view protecting spicule of this utility model embodiment
Fig. 2 is the schematic diagram of a kind of needle body protecting spicule of Fig. 1；
Fig. 3 is the front view of a kind of needle body protecting spicule of Fig. 2；
Fig. 4 is the front view of a kind of PEEK sheath protecting spicule of Fig. 1；
Fig. 5 is the top view of a kind of PEEK sheath protecting spicule of Fig. 4；
Fig. 6 is the A-A sectional view of a kind of PEEK sheath protecting spicule of Fig. 5.
Detailed description of the invention
This utility model embodiment provides one protection spicule, is used for solving spicule of the prior art and easily causes this technical problem of physical property inflammation.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Referring to Fig. 1 to Fig. 6, a kind of technical scheme protecting spicule of this utility model embodiment includes:
Needle body 1 and be positioned at the PEEK sheath 2 outside needle body 1；
Needle body 1 includes self tapping self-drilling type syringe needle 3, threaded portion 4 and the backshank 5 being sequentially connected with, and the length of threaded portion 4 is more than the length of PEEK sheath 2；The inside of PEEK sheath 2 is provided with the screwed hole matched with threaded portion, and PEEK sheath 2 is adjustable in the position of threaded portion 4.
Technique scheme is used to provide the benefit that:
Owing to the protection spicule in this utility model embodiment includes needle body 1 and is positioned at the PEEK sheath 2 outside needle body 1, needle body 1 includes self tapping self-drilling type syringe needle 3, threaded portion 4 and the backshank 5 being sequentially connected with, and the length of threaded portion 4 is more than the length of PEEK sheath 2；The inside of PEEK sheath 2 is provided with the screwed hole matched with threaded portion; when needle body 1 is squeezed in bone; by PEEK sheath 2 along threaded portion 4 toward backspin; PEEK sheath 2 is adjustable in the position of threaded portion 4; until contacting with surface of bone; it is outside that PEEK sheath 2 is placed in needle body 1, it is possible to protection skin avoids the inflammation caused from the injury of screw thread.
Separately below self tapping self-drilling type syringe needle 3, threaded portion 4 and PEEK sheath are described in detail.
(1) self tapping self-drilling type syringe needle 3
Self tapping self-drilling type syringe needle 3 can specifically include tapping blade and several move back and cut groove, and tapping blade is positioned at the end of self tapping self-drilling type syringe needle, moves back that to cut groove circumferentially disposed along the outer surface of self tapping self-drilling type syringe needle.
Further, tapping blade is cone, and this cone is gradually reduced along the direction area of backshank 5 to self tapping self-drilling type syringe needle 3.
Further, needle body is formed in one.
Further, several move back and cut groove and arrange at equal intervals.
The self tapping of protection spicule is from being drilled with meter and U-shaped screw thread, it is possible to time operation time without preboring needle track, directly hole on bone, and discharge and bore broken bone bits, reduce operating time and spicule inserts temperature, it is to avoid spicule loosens.
(2) threaded portion 4
Threaded portion is U-shaped screw thread, and the shape of threaded portion can be cylinder, and U-shaped screw thread can increase by 30% bone contact area, reduces radially cortex tension force, makes stress be distributed in bone most preferably.
(3) PEEK sheath 2
PEEK sheath 2 is cylinder, and the outer surface of PEEK sheath 2 is smooth flat.
In the technical scheme of above-mentioned protection spicule; needle body 1 is formed in one structure; PEEK sheath 2 is placed between needle body 1 and skin; utilize PEEK (polyether-ether-ketone; English name polyetheretherketone) outstanding biocompatibility can for a long time and human contact; needle track mouth will be protected not stimulated by metallic foreign body with human body generation stress.Simultaneously the most again because the screw thread of the needle body 1 of protection spicule inevitably some exposes that bone is outer and contact skin, the screw thread of cutting edge can cut skin, and PEEK sheath 2 can protect the inflammation that skin causes from the injury of screw thread.
The specific works principle of above-mentioned protection spicule is:
First PEEK sheath 2 is screwed to the top of the threaded portion 4 of needle body 1, then protection spicule is inserted in spicule sleeve, electric drill or manual brace is used to squeeze in bone by protection spicule, after exiting spicule sleeve, by PEEK sheath 2 threadingly portion 4 toward backspin, until PEEK sheath 2 contacts with surface of bone, finally use medical proof fabric, the part started threaded portion 4 does not contacts with PEEK sheath 2 in the upper end of PEEK sheath 2 winds up, on the one hand preventing PEEK sheath 2 pine from moving back, the screw thread on the other hand preventing threaded portion 4 to be placed in the external world scratches doctor or patient.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a protection spicule, it is characterised in that including: needle body and be positioned at the PEEK sheath outside described needle body；Described needle body includes self tapping self-drilling type syringe needle, threaded portion and the backshank being sequentially connected with, and the length of described threaded portion is more than the length of described PEEK sheath；The inside of described PEEK sheath is provided with the screwed hole matched with threaded portion, and described PEEK sheath is adjustable in the position of described threaded portion.
Protection spicule the most according to claim 1, it is characterised in that described threaded portion is U-shaped screw thread.
Protection spicule the most according to claim 1 and 2, it is characterised in that described threaded portion be shaped as cylinder.
Protection spicule the most according to claim 3, it is characterised in that described PEEK sheath is cylinder.
Protection spicule the most according to claim 4, it is characterised in that the outer surface of described PEEK sheath is smooth flat.
Protection spicule the most according to claim 1, it is characterised in that described needle body is formed in one.
7. according to the protection spicule described in claim 1 or 6, it is characterised in that described self tapping self-drilling type syringe needle includes that tapping blade and several move back and cuts groove.
Protection spicule the most according to claim 7, it is characterised in that described tapping blade is positioned at the end of described self tapping self-drilling type syringe needle, described in move back that to cut groove circumferentially disposed along the outer surface of described self tapping self-drilling type syringe needle.
Protection spicule the most according to claim 8, it is characterised in that described tapping blade is cone, described cone is gradually reduced along the direction area of described backshank extremely described self tapping self-drilling type syringe needle.
Protection spicule the most according to claim 9, it is characterised in that move back described in several and cut groove and arrange at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131613.3U CN205411277U (en) | 2016-02-22 | 2016-02-22 | Protective bone needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131613.3U CN205411277U (en) | 2016-02-22 | 2016-02-22 | Protective bone needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205411277U true CN205411277U (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620131613.3U Active CN205411277U (en) | 2016-02-22 | 2016-02-22 | Protective bone needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205411277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596065A (en) * | 2016-02-22 | 2016-05-25 | 运怡（北京）医疗器械有限公司 | Protective bone needle |
-
2016
- 2016-02-22 CN CN201620131613.3U patent/CN205411277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596065A (en) * | 2016-02-22 | 2016-05-25 | 运怡（北京）医疗器械有限公司 | Protective bone needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |