CN202665583U - Needle handle sleeve for bone puncture needle - Google Patents
Needle handle sleeve for bone puncture needle Download PDFInfo
- Publication number
- CN202665583U CN202665583U CN 201220340337 CN201220340337U CN202665583U CN 202665583 U CN202665583 U CN 202665583U CN 201220340337 CN201220340337 CN 201220340337 CN 201220340337 U CN201220340337 U CN 201220340337U CN 202665583 U CN202665583 U CN 202665583U
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- needle
- needle handle
- long
- medicated cap
- handle cover
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Abstract
The utility model relates to a needle handle sleeve for a bone puncture needle, wherein the needle handle sleeve is arranged to be a hollow-interior structure with an open front end, a needle handle can be sleeved in a hollow cavity in the needle handle sleeve, and the length of the cavity is longer than the length of the needle handle; the shapes of portions used for placing an adjusting screw and a fixing screw at the front end in the cavity are the same as the shapes of the adjusting screw and the fixing screw of the needle handle; the shape of a portion used for placing a needle body cap in the cavity is a cylinder with an elliptic section, and the long diameter and the short diameter of the elliptic section are equal to the long diameter and the short diameter of the elliptic shape of the needle body cap; the shape of a portion used for placing a core needle cap in the cavity is a cylinder with a circular section, and the diameter of the circular section is equal to the diameter of the circular shape of the core needle cap; the lengths of two portions used for placing the needle body cap and the core needle cap in the cavity are longer than the lengths of the needle body cap and the core needle cap; and a groove is arranged in the opening of the front end of the needle handle sleeve, and the width and the length of the groove are equal to the short diameter and the long diameter of an elliptic front force piece at the front end of the needle handle. The needle handle sleeve has the advantages of being simple in structure, suitable for fixing various bone puncture needles, and capable of increasing handheld area of the needle handle.
Description
Technical field
This utility model belongs to the medical device technical field, specifically, relates to a kind of medullo-puncture needle needle handle cover.
Background technology
Medullo-puncture needle also claims marrow puncture needle, is a kind of puncture needle that is used for clinically the bone marrow extraction sample survey.At present the structure of clinical all-metal medullo-puncture needle commonly used can be divided into needle handle and needle body two parts, and the long 55-65mm of needle handle is connected successively and formed by following each several part, comprises front power sheet, adjustable screw, fixing spiral, needle body medicated cap and core pin medicated cap totally five parts.The front end of needle body is needle point, and front power sheet, adjustable screw and the fixing centre bore of spiral are passed in the rear end of needle body, are fixedly connected on the centre bore of needle body medicated cap.Front power sheet is an oval lamellar structure, its major diameter 14mm, and minor axis 11mm, the thick 1mm of sheet, front power sheet centre bore are positioned at oval-shaped central authorities and communicate with the centre bore of adjustable screw.Adjustable screw is the cylinder of diameter 6mm, total length 20mm, and its front end is fixedly connected with front power sheet.The length of rotary moving adjustable screw scalable needle body, the degree of depth of namely regulating puncture, meanwhile the length of needle handle also has corresponding change thereupon.Fixedly spiral is that diameter 8mm, thickness are the lug of 3mm, and rotary fixing screw revolves and makes it reach fixation near adjustable screw.The needle body medicated cap is " doing " type structure, total length 22mm, and its top and centre are oval, and oval major diameter is 11mm, and minor axis is 8mm.The medullo-puncture needle needle body is hollow, and the core pin then is enclosed within the cavity of needle body.The front end of core pin is pointed and jointly forms the needle point of medullo-puncture needle with the needle point of needle body, and the rear end of core pin is fixedly connected with the nook closing member medicated cap.Core pin medicated cap is positioned at the needle handle rear end, by with being connected and the fixed core pin of needle body medicated cap.Core pin medicated cap is " worker " type structure, total length 12mm, two ends are circle, with the circular diameter of needle body medicated cap link be 8mm, the circular diameter of the other end (being that needle handle is terminal) is 11mm.
When puncturing, the turn adjustable screw with needle body be adjusted to certain-length and turn fixedly spiral be fixed, withstand on the front power sheet with the point of puncture of tip alignment skeleton and with finger with holding needle handle, suitably rotation is firmly punctured and is reached desired depth, pinch the nook closing member medicated cap that is positioned at the needle handle rear end and extract nook closing member with hands first, connect again the centre bore bone marrow extraction sample of needle body medicated cap with syringe.Since at present the needle handle of clinical all-metal medullo-puncture needle commonly used more carefully, shorter, inconvenience is held and is exerted oneself.Because in the various piece that forms needle handle, adjustable screw, fixedly spiral and three parts of core pin medicated cap all may the appearance activities when holding the needle handle operation, and the activity of any part all can impact puncture, especially be positioned at the nook closing member medicated cap of needle handle rear end, be easy to be touched and cause the displacement of core pin even come off, cause failure or the pollution of puncture.
The problems that are prone in clinical practice in order to overcome the all-metal medullo-puncture needle have been used some new medullo-puncture needle products clinically.Strengthen each ingredient volume of needle handle such as the plastic handgrip medullo-puncture needle, thereby the needle handle overstriking has been lengthened and convenient operation and firmly, but still existed some part of needle handle when operation, to be prone to movable problem.Solve firmly problem of manual operations although electrical bone is threaded a needle, used inconvenience, the many deficiencies of high in cost of production to limit it and applied because existing.
The utility model content
This utility model is for holding of existing of existing medullo-puncture needle and inconvenience, core pin the problems referred to above such as easily come off firmly, provide a kind of simple in structure, be applicable to fixing multiple different medullo-puncture needles, increase the medullo-puncture needle needle handle cover that needle handle is held area.
The technical solution of the utility model is: a kind of medullo-puncture needle needle handle cover, and this needle handle cover is set to the inner hollow structure of front opening, and needle handle can be sleeved in the cavity of needle handle cover inner hollow, and the length of cavity is greater than the length of needle handle; The shape that the cavity Inner Front End is placed adjustable screw and fixing spiral position and the adjustable screw of needle handle and fixedly the shape of spiral is consistent; Place the cylinder that is shaped as the cross section ovalize at needle body medicated cap position in the cavity, and the major diameter of elliptic cross-section is all oval consistent with the needle body medicated cap with minor axis; That places core pin medicated cap position in the cavity is shaped as the rounded cylinder in cross section, and the diameter of circular cross-section and core pin medicated cap is circular consistent; The length of placing needle body medicated cap and two positions of core pin medicated cap in the cavity is all greater than the length of needle body medicated cap and core pin medicated cap; The front opening place of needle handle cover is provided with a groove, and minor axis and the major diameter of the oval front power sheet of wide and long and the needle handle front end of groove are consistent.
Preferably, the outer setting of needle handle cover is for being vase-shaped column structure, and total length is 110-120mm, and wherein, point diameter is 15-16mm, and recess diameter is 11-12mm, and the abdominal part diameter is 20-22mm, and the diameter of rear end is 17-18mm.
Preferably, the inner hollow structure length of needle handle cover is 65-75mm, and wherein, core pin medicated cap position length is 20-22mm, and needle body medicated cap position is long to be 22-33mm, and fixedly the spiral position is long is 3mm, and adjustable screw position length is 20mm.
Preferably, the inner hollow structure length of needle handle cover is 65mm, and wherein, core pin medicated cap position length is 20mm, and needle body medicated cap position is long to be 22mm, and fixedly the spiral position is long is 3mm, and adjustable screw position length is 20mm.
Preferably, the inner hollow structure length of needle handle cover is 70mm, and wherein, core pin medicated cap position length is 20mm, and needle body medicated cap position is long to be 27mm, and fixedly the spiral position is long is 3mm, and adjustable screw position length is 20mm.
Preferably, the inner hollow structure length of needle handle cover is 75mm, and wherein, core pin medicated cap position length is 22mm, and needle body medicated cap position is long to be 30mm, and fixedly the spiral position is long is 3mm, and adjustable screw position length is 20mm.
Preferably, groove is the rectangular recess of degree of depth 1-2mm, rectangular recess wide and long consistent with minor axis and the major diameter of power sheet before needle handle front end oval respectively.
Preferably, the needle handle cover is involuted by two half symmetrical body structures, and its hollow structure that is combined to form can hold needle handle, and can hold the needle handle of adjustable in length.
Preferably, in two and half body structures, be provided with staple on one and half body structures, be provided with the fixing hole corresponding with staple on another half body structure.
Preferably, staple is provided with three, wherein, a rear end that is arranged on half body structure, it follows closely thick 4-5mm; Two front ends that are arranged on half body structure, it follows closely thick 2-3mm.
The beneficial effects of the utility model are: (1) this utility model is fixed together the needle handle integral assembling, has to prevent that loosening effect from appearring in some part of needle handle when puncture procedure; And when using, be sleeved on the needle handle, increased the needle handle volume and its vase-like profile is more convenient for holding and exerting oneself.(2) the end grain rectangular recess is connected with the tight phase embedding of the oval front power sheet of needle handle front end before this utility model needle handle cover, and oval-shaped needle body medicated cap contacts with the close sleeve type that needle handle overlaps oval hollow structure, two positions all have the synchronous rotary action that guarantees needle handle and needle handle cover, and rotation firmly when being beneficial to puncture procedure.(3) length of this utility model medullo-puncture needle needle handle cover hollow region of interest increases, hollow length is increased than the length of medullo-puncture needle needle handle, can be fit to because adjusting the change of the needle handle length that needle body length causes, thereby make this medullo-puncture needle needle handle cover applicable to multiple different medullo-puncture needle.(4) this utility model has not only overcome many deficiencies such as inconvenient and some part of needle handle of hand-held operation that present medullo-puncture needle product exists easily is touched, and make simple, use convenient, with low cost, be easy to popularization.
Description of drawings
Accompanying drawing 1 is this utility model specific embodiment cross-sectional view.
Accompanying drawing 2 is the user mode figure of this utility model specific embodiment.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The specific embodiment one: shown in Fig. 1-2, a kind of medullo-puncture needle needle handle cover, this needle handle cover 1 is set to the inner hollow structure of front opening, and needle handle can be sleeved in the cavity 2 of needle handle cover inner hollow, and the length of cavity 2 is greater than the length of needle handle.The shape that cavity 2 Inner Front Ends are placed needle handle adjustable screw 4 and fixing spiral 5 positions and needle handle adjustable screw 4 and fixedly the shape of spiral 5 is consistent; The cylinder that is shaped as the cross section ovalize at cavity 2 interior placement needle body medicated caps 6 positions, and the major diameter of elliptic cross-section is all oval consistent with needle body medicated cap 6 with minor axis; The shape that the shape at cavity 2 interior placement core pin medicated caps 7 positions and cavity 2 are longer than the needle handle position is the rounded cylinder in cross section, and the diameter of circular cross-section is the circular consistent of 11mm with core pin medicated cap 7 end diameters.The rectangular recess 3 that it is 1-2mm that the front opening place of needle handle cover 1 is provided with a degree of depth, the wide and length of rectangular recess 3 is consistent with front power sheet 8 minor axis and the major diameter of needle handle front end respectively.
The outer setting of needle handle cover 1 is for being vase-shaped column structure, and total length is 110-120mm, and wherein, point diameter is 15-16mm, and recess diameter is 11-12mm, and the abdominal part diameter is 20-22mm, and the diameter of rear end is 17-18mm; The inner hollow structure length of needle handle cover 1 is 65mm, and wherein, core pin medicated cap position length is 20mm, and needle body medicated cap position is long to be 22mm, and fixedly the spiral position is long is 3mm, and adjustable screw position length is 20mm.
When puncturing, at first the needle body 9 with medullo-puncture needle is adjusted to certain-length, needle handle is overlapped 1 involutory being installed on the needle handle of two and half body structures again, with holding needle handle cover 1 and the point of puncture of tip alignment skeleton suitably being exerted oneself to puncture.After puncture reached desired depth, separately needle handle overlapped 1 two and half body structures and takes off needle handle cover 1 first, pinches the core pin medicated cap 7 that is positioned at the needle handle rear end and extracts nook closing member with hands again, connects the centre bore bone marrow extraction sample of needle body medicated cap 6 with syringe.
The specific embodiment two: different from the specific embodiment one is, in the specific embodiment two, the inner hollow structure of needle handle cover 1 is long to be 70mm, wherein, core pin medicated cap position is long to be 20mm, and needle body medicated cap position is long to be 27mm, fixedly the spiral position is long is 3mm, and the adjustable screw position is long to be 20mm.
The specific embodiment three: different from the specific embodiment one is, in the specific embodiment three, the inner hollow structure of needle handle cover 1 is long to be 75mm, wherein, core pin medicated cap position is long to be 22mm, and needle body medicated cap position is long to be 30mm, fixedly the spiral position is long is 3mm, and the adjustable screw position is long to be 20mm.
The above specific embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment this utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. medullo-puncture needle needle handle cover, it is characterized in that: this needle handle cover is set to the inner hollow structure of front opening, and needle handle can be sleeved in the cavity of needle handle cover inner hollow, and the length of cavity is greater than the length of needle handle; The shape that the cavity Inner Front End is placed adjustable screw and fixing spiral position and the adjustable screw of needle handle and fixedly the shape of spiral is consistent; Place the cylinder that is shaped as the cross section ovalize at needle body medicated cap position in the cavity, and the major diameter of elliptic cross-section is all oval consistent with the needle body medicated cap with minor axis; That places core pin medicated cap position in the cavity is shaped as the rounded cylinder in cross section, and the diameter of circular cross-section and core pin medicated cap is circular consistent; The length of placing needle body medicated cap and two positions of core pin medicated cap in the cavity is all greater than the length of needle body medicated cap and core pin medicated cap; The front opening place of needle handle cover is provided with a groove, and minor axis and the major diameter of the oval front power sheet of wide and long and the needle handle front end of groove are consistent.
2. medullo-puncture needle needle handle cover as claimed in claim 1 is characterized in that: the outer setting of needle handle cover is for being vase-shaped column structure, and total length is 110-120mm, wherein, point diameter is 15-16mm, and recess diameter is 11-12mm, the abdominal part diameter is 20-22mm, and the diameter of rear end is 17-18mm.
3. medullo-puncture needle needle handle cover as claimed in claim 1 is characterized in that: the inner hollow structure of needle handle cover is long to be 65-75mm, wherein, core pin medicated cap position is long to be 20-22mm, needle body medicated cap position is long to be 22-33mm, and fixedly the spiral position is long is 3mm, and adjustable screw position length is 20mm.
4. medullo-puncture needle needle handle cover as claimed in claim 3 is characterized in that: the inner hollow structure of needle handle cover is long to be 65mm, and wherein, core pin medicated cap position is long to be 20mm, and needle body medicated cap position is long to be 22mm, and fixedly the spiral position is long is 3mm, and the adjustable screw position is long to be 20mm.
5. medullo-puncture needle needle handle cover as claimed in claim 3 is characterized in that: the inner hollow structure of needle handle cover is long to be 70mm, and wherein, core pin medicated cap position is long to be 20mm, and needle body medicated cap position is long to be 27mm, and fixedly the spiral position is long is 3mm, and the adjustable screw position is long to be 20mm.
6. medullo-puncture needle needle handle cover as claimed in claim 3 is characterized in that: the inner hollow structure of needle handle cover is long to be 75mm, and wherein, core pin medicated cap position is long to be 22mm, and needle body medicated cap position is long to be 30mm, and fixedly the spiral position is long is 3mm, and the adjustable screw position is long to be 20mm.
7. medullo-puncture needle needle handle cover as claimed in claim 1, it is characterized in that: groove is the rectangular recess of degree of depth 1-2mm, rectangular recess wide and long consistent with minor axis and the major diameter of power sheet before needle handle front end oval respectively.
8. such as the described medullo-puncture needle needle handle of claim 1 to 7 any one cover, it is characterized in that: the needle handle cover is involuted by two half symmetrical body structures, and its hollow structure that is combined to form can hold needle handle, and can hold the needle handle of adjustable in length.
9. medullo-puncture needle needle handle cover as claimed in claim 8 is characterized in that: in two and half body structures, be provided with staple on one and half body structures, be provided with the fixing hole corresponding with staple on another half body structure.
10. medullo-puncture needle needle handle cover as claimed in claim 9, it is characterized in that: staple is provided with three, wherein, and a rear end that is arranged on half body structure, it follows closely thick 4-5mm; Two front ends that are arranged on half body structure, it follows closely thick 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340337 CN202665583U (en) | 2012-07-16 | 2012-07-16 | Needle handle sleeve for bone puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340337 CN202665583U (en) | 2012-07-16 | 2012-07-16 | Needle handle sleeve for bone puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202665583U true CN202665583U (en) | 2013-01-16 |
Family
ID=47486527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220340337 Withdrawn - After Issue CN202665583U (en) | 2012-07-16 | 2012-07-16 | Needle handle sleeve for bone puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202665583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727260A (en) * | 2012-07-16 | 2012-10-17 | 中国人民解放军总医院 | Needle handle sleeve for bone puncture needle |
-
2012
- 2012-07-16 CN CN 201220340337 patent/CN202665583U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727260A (en) * | 2012-07-16 | 2012-10-17 | 中国人民解放军总医院 | Needle handle sleeve for bone puncture needle |
| CN102727260B (en) * | 2012-07-16 | 2014-07-16 | 中国人民解放军总医院 | Needle handle sleeve for bone puncture needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20140716 |
|
| RGAV | Abandon patent right to avoid regrant |