CN213466024U - Length-adjustable puncture needle - Google Patents
Length-adjustable puncture needle Download PDFInfo
- Publication number
- CN213466024U CN213466024U CN202021934182.7U CN202021934182U CN213466024U CN 213466024 U CN213466024 U CN 213466024U CN 202021934182 U CN202021934182 U CN 202021934182U CN 213466024 U CN213466024 U CN 213466024U
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- needle body
- needle
- length
- sliding ring
- ring
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Abstract
The utility model discloses a needle is used in puncture of adjustable length, including sleeve, second needle body and flexible appurtenance, telescopic bottom fixed mounting has first needle body, the inside cavity of first needle body, and the uncovered bottom in top of first needle body seals, the inside slip cover of first needle body is equipped with the sliding ring, the through-hole has been seted up to the bottom of first needle body. A needle is used in puncture of adjustable length, be equipped with first needle body, second needle body, special-shaped sealing washer, sliding ring and circular seal, the second needle body mutually supports with the sliding ring, can follow first needle body axial and carry out the displacement to realize flexible purpose, sliding ring middle part design circular seal, when improving sealed effect, increase sliding ring sliding resistance, and, the draw-in groove is seted up to first needle body inner wall, circular seal card goes into in the draw-in groove, play the fixed action to the flexible length of second needle body.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to needle for puncture of adjustable length.
Background
In clinical diagnosis and treatment, puncture needles are required to be used in all aspects, wherein in the aspect of dispensing, a needle head is matched with an injector, the needle head is utilized to puncture a bottle stopper of a liquid medicine bottle, liquid medicine in the liquid medicine bottle is sucked and transferred, however, in actual use, the length of the needle head cannot be adjusted, the length of the needle head is influenced by the length, the liquid medicine cannot be sucked if the liquid level of the liquid medicine is lower than that of the needle head, and therefore, the length of the puncture needle can be adjusted.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a needle is used in puncture of adjustable length can effectively solve the problem among the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a needle is used in puncture of adjustable length, includes sleeve, second needle body and flexible appurtenance, telescopic bottom fixed mounting has first needle body, the inside cavity of first needle body, and the uncovered bottom in top of first needle body seals, the inside slip cover of first needle body is equipped with the sliding ring, the through-hole has been seted up to the bottom of first needle body, the top of second needle body pass the through-hole get into the inside of first needle body and with the bottom fixed connection of sliding ring, flexible appurtenance comprises ring and connecting rod.
Preferably, the outer diameter of the second needle body is smaller than the aperture of the through hole, the outer diameter of the slip ring is larger than the aperture of the through hole, and the outer diameter of the slip ring is smaller than the inner diameter of the first needle body.
Preferably, the bottom end of the first needle body is provided with a special-shaped sealing ring, the special-shaped sealing ring and the first needle body are fixed by glue joint of strong glue, and the outer contour shape of the special-shaped sealing ring is trapezoidal.
Preferably, the middle part of the sleeve is provided with an anti-slip sleeve, the anti-slip sleeve is fixed with the sleeve through the glue joint of the super glue, and the outer wall of the anti-slip sleeve is provided with an anti-slip groove.
Preferably, the inner wall of the first needle body is provided with a clamping groove, the middle part of the sliding ring is provided with a circular sealing ring, the sliding ring and the circular sealing ring are fixedly connected through super glue, and the circular sealing ring is matched with the clamping groove in size.
Preferably, the ring is fixedly installed at the top end of the connecting rod, an external thread is formed on the partial outer wall of the connecting rod, an internal thread is formed on the inner wall of the sliding ring, and the external thread is matched with the internal thread.
Compared with the prior art, the utility model discloses following beneficial effect has: the length-adjustable puncture needle has the advantages that the first needle body, the second needle body, the special-shaped sealing ring, the sliding ring and the circular sealing ring are arranged, the second needle body and the sliding ring are matched with each other, the needle can move along the axial direction of the first needle body, so that the telescopic purpose is realized, the circular sealing ring is designed in the middle of the sliding ring, the sliding resistance of the sliding ring is increased while the sealing effect is improved, in addition, the inner wall of the first needle body is provided with a clamping groove, the circular sealing ring is clamped in the clamping groove, the telescopic length of the second needle body is fixed, the special-shaped sealing ring is designed, a layer of sealing is added, the sealing effect is improved, the special structure of the special-shaped sealing ring enables an inclined plane to be formed between the end surface of the bottom end of the first needle body and the second needle body, so as to facilitate the puncture, do benefit to people and use, the puncture of whole adjustable length is with needle simple structure, convenient operation, the effect of using is better for traditional mode.
Drawings
Fig. 1 is a front view of the length-adjustable puncture needle of the present invention.
Fig. 2 is a schematic view of the internal structure of the first needle body of the length-adjustable puncturing needle of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2 of the length-adjustable puncture needle of the present invention.
Fig. 4 is a schematic structural view of the length-adjustable auxiliary tool for extension and retraction in the puncture needle of the present invention.
Fig. 5 is a cross-sectional view of the sliding ring in the adjustable length puncturing needle of the present invention.
In the figure: 1. a sleeve; 2. an anti-slip sleeve; 3. a first needle body; 4. a special-shaped sealing ring; 5. a second needle body; 6. a slip ring; 7. a circular seal ring; 8. a card slot; 9. a ring; 10. a connecting rod; 11. an external thread; 12. an internal thread; 13. a telescopic auxiliary tool.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-5, a needle is used in puncture of adjustable length, including sleeve 1, second needle body 5 and flexible appurtenance 13, sleeve 1's bottom fixed mounting has first needle body 3, the inside cavity of first needle body 3, and the uncovered bottom in top of first needle body 3 is sealed, the inside slip cap of first needle body 3 is equipped with sliding ring 6, the through-hole has been seted up to first needle body 3's bottom, the top of second needle body 5 pass the through-hole get into first needle body 3's inside and with sliding ring 6's bottom fixed connection, flexible appurtenance 13 comprises ring 9 and connecting rod 10.
Further, the external diameter of the second needle body 5 is smaller than the aperture of the through hole, the external diameter of the slip ring 6 is larger than the aperture of the through hole, the external diameter of the slip ring 6 is smaller than the internal diameter of the first needle body 3, and the slip ring 6 cannot pass through the through hole, so that the sliding range of the slip ring 6 is limited.
Further, the bottom of first needle body 3 is provided with special-shaped sealing washer 4, splices fixedly through the powerful gluey between special-shaped sealing washer 4 and the first needle body 3, and special-shaped sealing washer 4's outline shape is trapezoidal, and it is sealed to increase the one deck, improves sealed effect, and the special construction that special-shaped sealing washer 4 had makes 3 bottom end faces of first needle body and second needle body 5 within a definite time form the inclined plane to in the puncture.
Further, the middle part of sleeve 1 is provided with antiskid cover 2, and it is fixed to splice through the powerful glue between antiskid cover 2 and the sleeve 1, and the antiskid groove has been seted up to the outer wall of antiskid cover 2, and during the installation, sleeve 1 is connected with the syringe, and antiskid cover 2 can improve the anti-skidding effect when installing the operation.
Further, draw-in groove 8 has been seted up to the inner wall of first needle body 3, the middle part of sliding ring 6 is provided with circular seal 7, it is fixed to splice through the powerful glue between sliding ring 6 and the circular seal 7, circular seal 7 matches with draw-in groove 8 size, sliding ring 6 middle part design circular seal 7, when improving sealed effect, increase sliding ring 6 sliding resistance, and, draw-in groove 8 is seted up to 3 inner walls of first needle body, circular seal 7 card goes into in draw-in groove 8, play the fixed action to the flexible length of second needle body 5.
Further, ring 9 fixed mounting is on the top of connecting rod 10, external screw thread 11 has been seted up to the local outer wall of connecting rod 10, internal thread 12 has been seted up to the inner wall of sliding ring 6, and external screw thread 11 and internal thread 12 phase-match, when first needle body 3 is not enough with the length of second needle body 5, with sleeve 1 and syringe separation, use flexible appurtenance 13 to operate, connecting rod 10 inserts the inside of first needle body 3, the inside to sliding ring 6 of partial threaded mounting that external screw thread 11 was seted up to connecting rod 10 bottom, control ring 9 is pressed down, promote sliding ring 6 downstream, first needle body 3 extends with second needle body 5, length increases, when shortening length, then control ring 9 moves up, pulling sliding ring 6 upward movement, the local part shrink of second needle body 5 to the inside of first needle body 3, length shrinks.
It should be noted that the utility model relates to a length adjustable needle for puncture, the length adjustable needle for puncture is composed of a sleeve 1, an anti-slip sleeve 2, a first needle body 3, a special-shaped sealing ring 4, a second needle body 5, a slip ring 6, a circular sealing ring 7 and a telescopic auxiliary tool 13, wherein, the telescopic auxiliary tool 13 is composed of a ring 9 and a connecting rod 10, before use, the sleeve 1 is connected with an injector, the anti-slip sleeve 2 can improve the anti-slip effect during installation operation, during use, the first needle body 3 and the second needle body 5 puncture a liquid medicine bottle cork, the second needle body 5 is immersed in the liquid medicine, the liquid medicine is absorbed by the injector, when the lengths of the first needle body 3 and the second needle body 5 are not enough, the sleeve 1 is separated from the injector, the telescopic auxiliary tool 13 is used for operation, the connecting rod 10 is inserted into the first needle body 3, part of the bottom end of the connecting rod 10 is provided with an external thread 11 and is installed inside, control ring 9 is pressed down, promote sliding ring 6 downstream, first needle body 3 extends with second needle body 5, length increases, when shortening length, then control ring 9 moves up, pulling sliding ring 6 upward movement, second needle body 5's local part contracts to first needle body 3's inside, length reduces, wherein, sliding ring 6 middle part design circular seal 7, when improving sealed effect, increase sliding ring 6 sliding resistance, and, draw-in groove 8 is seted up to first needle body 3 inner wall, circular seal 7 card is gone into in draw-in groove 8, play the fixed action to second needle body 5's flexible length, special-shaped seal 4's design, it is sealed to increase the one deck, improve sealed effect, the special construction that special-shaped seal 4 has, make and form the inclined plane between 3 bottom end faces of first needle body and second needle body 5, so that the puncture, and is comparatively practical.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a needle is used in puncture of adjustable length, includes sleeve (1), second needle body (5) and flexible appurtenance (13), its characterized in that: the bottom fixed mounting of sleeve (1) has first needle body (3), the inside cavity of first needle body (3), and the uncovered bottom in top of first needle body (3) seals, the inside slip cover of first needle body (3) is equipped with sliding ring (6), the through-hole has been seted up to the bottom of first needle body (3), the top of second needle body (5) pass the through-hole and get into the inside of first needle body (3) and with the bottom fixed connection of sliding ring (6), flexible appurtenance (13) comprise ring (9) and connecting rod (10).
2. The length-adjustable puncture needle according to claim 1, characterized in that: the outer diameter of the second needle body (5) is smaller than the aperture of the through hole, the outer diameter of the slip ring (6) is larger than the aperture of the through hole, and the outer diameter of the slip ring (6) is smaller than the inner diameter of the first needle body (3).
3. The length-adjustable puncture needle according to claim 1, characterized in that: the bottom of first needle body (3) is provided with special-shaped sealing washer (4), it is fixed to splice through powerful gluey between special-shaped sealing washer (4) and first needle body (3), the outline shape of special-shaped sealing washer (4) is trapezoidal.
4. The length-adjustable puncture needle according to claim 1, characterized in that: the middle part of sleeve (1) is provided with antiskid cover (2), it is fixed to splice through powerful glue between antiskid cover (2) and sleeve (1), the antiskid groove has been seted up to the outer wall of antiskid cover (2).
5. The length-adjustable puncture needle according to claim 1, characterized in that: draw-in groove (8) have been seted up to the inner wall of first needle body (3), the middle part of sliding ring (6) is provided with circular seal (7), it is fixed to splice through the super glue between sliding ring (6) and circular seal (7), circular seal (7) and draw-in groove (8) size match.
6. The length-adjustable puncture needle according to claim 1, characterized in that: the ring (9) is fixedly arranged at the top end of the connecting rod (10), an external thread (11) is formed in the local outer wall of the connecting rod (10), an internal thread (12) is formed in the inner wall of the sliding ring (6), and the external thread (11) is matched with the internal thread (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021934182.7U CN213466024U (en) | 2020-09-07 | 2020-09-07 | Length-adjustable puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021934182.7U CN213466024U (en) | 2020-09-07 | 2020-09-07 | Length-adjustable puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213466024U true CN213466024U (en) | 2021-06-18 |
Family
ID=76417885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021934182.7U Active CN213466024U (en) | 2020-09-07 | 2020-09-07 | Length-adjustable puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213466024U (en) |
-
2020
- 2020-09-07 CN CN202021934182.7U patent/CN213466024U/en active Active
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