CN205054372U - Puncture needle - Google Patents
Puncture needle Download PDFInfo
- Publication number
- CN205054372U CN205054372U CN201520744694.XU CN201520744694U CN205054372U CN 205054372 U CN205054372 U CN 205054372U CN 201520744694 U CN201520744694 U CN 201520744694U CN 205054372 U CN205054372 U CN 205054372U
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- CN
- China
- Prior art keywords
- needle
- needle body
- puncture
- puncture needle
- stand
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a puncture needle, including hollow needle body, the needle file and movably of locating the needle body tip fill in nook closing member in the needle body, be equipped with the first portion of easily splitting that can form the axial fracture under the exogenic action on the needle body, the setting of needle body both ends is run through in the first portion of easily splitting. The utility model discloses simple structure for the disposable product, effectively prevents the reutilization, and the interior hydrops of human body can not carry over the needle body outflow when puncturing in addition, avoids cross infection, and the security performance is higher, can be applicable to the puncture of various minutes forked type pipes.
Description
Technical field
This utility model belongs to medical instruments field, especially relates to a kind of puncture needle being applicable to branch type conduit.
Background technology
At present, traditional puncture needle can only place the thinner straight type single lumen catheter of diameter, and for branch type conduits such as Y type drainage catheters, common puncture needle cannot exit after puncture.Chinese patent CN101999922, " side opening drainage needle for thoracocentesis " discloses a kind of drainage needle being applicable to thoracentesis, it comprises puncture needle core, puncture sheath, puncture needle core left side is handle, puncture needle core right-hand part is strip syringe needle, puncture sheath left end is Handheld Division, and be long strip type thin cylinder on the right side of Handheld Division, thin cylinder circumferentially side has side opening vertically.This goal of the invention solves current thoracentesis needle to use inconvenience, increase the problem of patient's misery, provides a kind of split type puncture needle with side opening.But there is following shortcoming in foregoing invention: 1, time cavity gap dropsy is not clear or clear and definite infection foreign body, above-mentioned puncture drainage needle is in the process of puncture and intubation, puncture time cavity gap dropsy inevitably infiltrates along side opening or flows in its hetero-organization of human body, cause artificial pollution or infection, as other bacteriological infection such as tumor cell, tulase, secondary injury is caused to patient; 2, puncture successfully and puncture needle core is exited, puncture sheath is stayed on patient's thoracic wall, again puncture sheath is exited after Y type drainage tube is inserted thoracic cavity by puncture sheath, said process is as misoperation, outer end diameter due to the sheath that punctures after puncture needle core exits is less, the process of inserting of drainage tube is easy to puncture sheath excessively to insert in tissue, causes puncture sheath cannot exit in tissue; 3, after puncture needle core exits, do not have limiting component outside tissue, puncture sheath is easily shifted, and causes location inaccurate; 4, said apparatus is not disposable product, is easy to again be utilized by by improper channel, there is very large potential safety hazard.In sum, foregoing invention can not solve the puncture problem of Y-piece in practice, needs to research and develop a kind of security performance high, is applicable to the puncture needle of puncture branch type conduit.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of security performance high, is applicable to the puncture needle of puncture branch type conduit.
This utility model solves the technical scheme that its technical problem adopts: a kind of puncture needle, the nook closing member comprising the needle body of hollow, be located at the needle stand of needle body end and be filled in movably in described needle body, described needle body is provided with and can forms first of rupture along axial direction easily split portion under External Force Acting, and described first easily splits portion runs through needle body two ends and arrange.First easily split portion be arranged so that puncture needle is not only applicable to common conduit, and be applicable to the puncture of the branch type conduits such as Y type, the scope of application is wider.
Further, described needle stand length direction is provided with and can forms second of rupture along axial direction easily split portion under External Force Acting, and this second easily splits portion and form cracking for driving described first easily to split portion.The needle stand be fixed on needle body arranges second equally and easily splits portion to needle body when puncturing, and produces certain position-limiting action relative to tissue, avoids being shifted during puncture.
Further, described second easily splits portion and first and easily splits portion just to setting.First easily splits portion and second easily splits portion just to being arranged so that second easily splits and to be easy to drive first after portion ftractures and easily to split portion and produce and ftracture.
Further, described needle stand is provided with axial cracking, and this cracks and runs through the setting of needle stand two ends.Because needle stand is in tissue outside, the hydrops in human body can not flow out in large quantities in needle body, and needle stand can arrange axial cracking.
Further, described first easily to split portion be the thin-wall construction be connected on needle body.Thin-wall construction is not only avoided hydrops to flow out producing infecting, and is easy to generation formation first of breaking and easily splits portion.
Further, described second easily to split portion be the thin-wall construction be connected on needle stand.
Further, described needle stand comprises the first pedestal and the second pedestal, and described in described first pedestal and the bonding of the second pedestal are formed second easily splits portion.This design makes second easily to split portion to be easy to tear formation split.
Further, described nook closing member end is provided with the limiting section offseted with needle stand.Nook closing member has the end suitable with needle body end, and because needle body end is ramp structure, therefore nook closing member is in order to fit like a glove with needle body, needs to insert needle stand with certain angle, and its assembling is convenient in the setting of limiting section.
Further, described needle body outer wall is provided with labeling section.For observing the needle body length punctured in tissue intuitively.
The beneficial effects of the utility model are, structure is simple, for disposable product, effectively prevent secondary from utilizing, and puncture time human body in hydrops can not carry over needle body flow out, avoid cross infection, security performance is higher, applied widely, as being applied to the puncture of the various branch type conduit such as the puncture of chronic infusion branch type conduit or the puncture of epidural branch type conduit in the puncture of thoracic cavity Y type drainage tube, sheath.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cross-sectional view one of this utility model needle body.
Fig. 3 is the cross-sectional view two of this utility model needle body.
Fig. 4 is the structural representation of this utility model needle stand.
Fig. 5 is the structural representation of this utility model needle body end.
Detailed description of the invention
This utility model scheme is better understood in order to make those skilled in the art person, below in conjunction with the accompanying drawing in this utility model embodiment, clear, complete description is carried out to the technical scheme in this utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of this utility model protection.
With reference to shown in Fig. 1-5, a kind of puncture needle comprises the cylindricality needle body 1 of hollow, the needle stand 2 being connected to needle body 1 end and the nook closing member 3 be filled in movably in needle body 1.Needle body 1 is provided with first along its length and easily splits portion 11, and this first easily splits portion 11 and run through whole needle body 1 and arrange, and it can form rupture along axial direction under the effect of external force.The outer wall of needle body 1 is also provided with annular for visual inspection and then the labeling section 12 that plays the role of positioning, this labeling section 12 also can be the mark that rule or gauge point etc. are convenient to observe.The end of needle body 1 has the bending section 13 being convenient to puncture, and conduit can be sent into along position, human height direction by arranging of this bending section 13.The end face of needle body 1 is the cross-section structure with gradient.Needle stand 2 is fixedly connected on the other end of needle body 1, needle stand 2 is provided with along its length and easily splits portion 11 with first and just easily split portion to arrange second, this second easily splits portion and can form rupture along axial direction under the effect of external force, and second easily splits and first can be driven easily to split portion 11 after portion forms rupture along axial direction to form cracking.Concrete, in the present embodiment, first easily to split portion 11 can be thin-wall construction, can certainly be original state for needle body 1 in integrative-structure, form the arbitrary structures in crack under external force, if inwall is thin film, outer wall is some broken string structure, or forms the gap structure being easy to rupture.Second easily splits portion is connected to the thin-wall construction on needle stand 2, same, also needle stand 2 can be set to the Split type structure comprising the first pedestal and the second pedestal, first pedestal and the bonding of the second pedestal are formed above-mentioned second and easily splits portion, further, also directly can arrange on needle stand 2 and axial crack 21, this cracks and 21 runs through whole needle stand 2, and easily splits portion 11 just to setting with first.Needle stand 2 is positioned at second left and right sides easily splitting portion and is respectively equipped with the first flank 22 and the second flank 23 being convenient to needle stand 2 be applied to external force, same, this first flank 22 and the second flank 23 also can be arranged on crack 21 both sides.Nook closing member 3 inserts in needle body 1 through needle stand 2, and the internal diameter of the external diameter of nook closing member 3 and needle body 1 is adaptive, end due to needle body 1 has bending section 13, the end face of needle body 1 is the cross-section structure with gradient, same, the end of nook closing member 3 also has the bending section of same curvature, and the section of nook closing member 3 also has identical gradient.Coordinate for the ease of the grafting of needle body 1 with nook closing member 3, be provided with the limiting section 31 offseted with needle stand 2 in the end of nook closing member 3, this limiting section 31 is fastened in groove 24 adaptive with it on needle stand 2.
When using puncture needle to puncture, first nook closing member 3 is inserted in needle body 1, and limiting section 31 is fastened in groove 24, then the needle body 1 of band nook closing member 3 is punctured into tissue, after arriving target location, nook closing member 3 is extracted in needle body 1, again branch type conduit is inserted in needle body 1, after arriving target location, right-hand man holds the first flank 22 and the second flank 23 respectively, the external force be separated to both sides is applied to needle stand 2, thus second easily splits portion's formation rupture along axial direction, drive on needle body 1 first easily to split portion 11 and form rupture along axial direction, then needle stand 2 is extracted in tissue, needle body 1 is driven progressively to extract, when rupture along axial direction runs through whole needle body 1, needle body 1 is all extracted in tissue, by in catheter retaining tissue.
Above-mentioned detailed description of the invention is used for explaining and this utility model is described; instead of this utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make this utility model and change, all fall into protection domain of the present utility model.
Claims (9)
1. a puncture needle, the needle body (1) comprising hollow, the needle stand (2) being located at needle body (1) end and the nook closing member (3) be filled in movably in described needle body (1), it is characterized in that: described needle body (1) is provided with and can forms first of rupture along axial direction easily split portion (11) under External Force Acting, described first easily splits portion (11) runs through needle body (1) two ends and arranges.
2. puncture needle according to claim 1, is characterized in that: described needle stand (2) length direction is provided with and can forms second of rupture along axial direction easily split portion under External Force Acting, and this second easily splits portion and form cracking for driving described first easily to split portion (11).
3. puncture needle according to claim 2, is characterized in that: described second easily splits portion and first easily splits portion (11) just to setting.
4. puncture needle according to claim 1, is characterized in that: described needle stand (2) is provided with axial crack (21), and this cracks (21) runs through the setting of needle stand (2) two ends.
5. puncture needle according to claim 1, is characterized in that: described first easily splits portion (11) for being connected to the thin-wall construction on needle body (1).
6. puncture needle according to claim 2, is characterized in that: described second easily splits portion for being connected to the thin-wall construction on needle stand (2).
7. puncture needle according to claim 2, is characterized in that: described needle stand (2) comprises the first pedestal and the second pedestal, and described in described first pedestal and the bonding of the second pedestal are formed second easily splits portion.
8. puncture needle according to claim 1, is characterized in that: described nook closing member (3) end is provided with the limiting section (31) offseted with needle stand (2).
9. puncture needle according to claim 1, is characterized in that: described needle body (1) outer wall is provided with labeling section (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520744694.XU CN205054372U (en) | 2015-09-24 | 2015-09-24 | Puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520744694.XU CN205054372U (en) | 2015-09-24 | 2015-09-24 | Puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205054372U true CN205054372U (en) | 2016-03-02 |
Family
ID=55380988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520744694.XU Expired - Fee Related CN205054372U (en) | 2015-09-24 | 2015-09-24 | Puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205054372U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105212994A (en) * | 2015-09-24 | 2016-01-06 | 邵志辉 | Puncture needle |
| WO2020191807A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳市擎源医疗器械有限公司 | Puncture needle assembly and balloon catheter kit |
-
2015
- 2015-09-24 CN CN201520744694.XU patent/CN205054372U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105212994A (en) * | 2015-09-24 | 2016-01-06 | 邵志辉 | Puncture needle |
| WO2020191807A1 (en) * | 2019-03-27 | 2020-10-01 | 深圳市擎源医疗器械有限公司 | Puncture needle assembly and balloon catheter kit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20180924 |