CN201624740U - Novel deep vein puncture needle - Google Patents
Novel deep vein puncture needle Download PDFInfo
- Publication number
- CN201624740U CN201624740U CN2010201475310U CN201020147531U CN201624740U CN 201624740 U CN201624740 U CN 201624740U CN 2010201475310 U CN2010201475310 U CN 2010201475310U CN 201020147531 U CN201020147531 U CN 201020147531U CN 201624740 U CN201624740 U CN 201624740U
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- needle
- bodkin
- seat
- fine needle
- viscose
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Abstract
The utility model relates to a medical instrument, and particularly relates to a tool for anesthesia. A novel deep vein puncture needle comprises a thick needle, a fine needle, a thick needle seat and a fine needle seat; the thick needle seat and the fine needle seat are connected with the thick needle and the fine needle; a closing valve is arranged between the thick needle and the thick needle seat; and the fine needle which passes through the thick needle seat, the closing seat and the thick needle in turn is arranged on the thick needle seat through the fine needle seat. According to the technical scheme, the method that the thick needle is sleeved on the fine needle is adopted for realizing the purpose that the thick needle and the thin needle are used for puncturing at the same time, so that the damage caused by the puncture time after time is reduced, and the needle tube base of the thick needle is connected with the closing valve for forming an airtight chamber between the inner cavity of the needle and the blood vessel, air is prevented from coming into the vein, and the deep vein puncture can be safely and accurately finished by a few tries.
Description
Technical field
This utility model relates to medical apparatus and instruments, relates in particular to the anesthesia articles for use.
Background technology
Tradition Y moldeed depth venipuncture needle or straight barrel type puncture needle all have a problem at work, use exactly try the success of dark vein on than the fine needle head after, might wear when changing coarse needle bioptic into less than dark vein, repeatedly piercing process several times, can increase damage, very big work difficulty is also arranged simultaneously.
Also once the someone designed the deep vein puncture pin that a kind of bodkin and fine needle are tried on simultaneously, as Jiang Zhong on March 18th, 2002 application, on October 16th, 2002 is disclosed, application number is 02219373.1, publication number is the utility model patent of CN2516171, name is called two sleeve pipe deep vein puncture pins, two sleeve pipe deep vein puncture pins, include needle tubing and needle tubing seat, needle tubing seat inner chamber is communicated with needle tubing, it is characterized in that being provided with thick, thin two needle tubings are individually fixed on the needle tubing seat separately, small needle tube passes the bodkin pipe and grows outer one section of bodkin tube head, and the head of small needle tube base connects with bodkin tube socket tailing screw flight.For being slidingly matched, the small needle tube head length goes out the bodkin tube head and is not less than 10mm between the internal diameter of the external diameter of small needle tube and bodkin pipe, and the tube wall of two needle tubings is equipped with scale.The deep vein puncture pin that this bodkin, fine needle pass simultaneously can not really be used for clinical use, because its needle tubing seat is an open state, when penetrating vein, can gas be sucked human body owing to venous negative pressure effect, and cause bigger injury.
Summary of the invention
This utility model needs repeatedly to try on repeatedly and can damage to the patient at deep vein puncture pin in the prior art, even the deep vein puncture pin of needle guard needle construction is arranged but can not be in the clinical actual defective of using, and propose a kind ofly to try on jointly by bodkin and fine needle, connect closed valve and guarantee that needle tubing in the process of trying on is inner and form a kind of deep vein puncture pin of closed chamber at bodkin needle tubing seat simultaneously with vein.
In order to solve the problems of the technologies described above, this utility model is solved by following technical proposals:
Novel deep vein puncture pin, comprise bodkin and fine needle, and with bodkin seat and fine needle seat that bodkin links to each other with fine needle, be provided with closed valve between bodkin and the bodkin seat, fine needle passes bodkin seat, closed valve and bodkin successively and cooperates by the fine needle seat and is installed on the bodkin seat.
By fine needle being placed the method in the bodkin, can directly bodkin be pushed in the dark vein after making fine needle try on successfully, and avoided and will carry out the situation that coarse needle bioptic misplaces after the fine needle taking-up once more, closed valve is installed on the bodkin seat of bodkin can avoid when fine needle takes out air by vein negative pressure suction blood vessel and cause aeroembolism, after closed valve is installed, fine needle can guarantee to keep in the bodkin simultaneously airtight state again by passing on the closed valve always.
As preferably, described closed valve comprises loam cake and the bottom that cooperatively interacts, and is installed in the closing device in loam cake and the bottom, and loam cake links to each other with bodkin, and bottom links to each other with the bodkin seat.
Constituting stuck point by the depression that cooperatively interacts with projection on loam cake and the bottom links to each other.
On the lateral surface of loam cake, be provided with the loam cake rib identical with bottom thickness.
Closed valve is installed between bodkin and the bodkin seat, loam cake by closed valve connects bodkin, bottom links to each other with the bodkin seat, between loam cake and bottom, form certain cavity and be used to place closing device, loam cake links to each other by stuck point with bottom, the installation that can make things convenient for loam cake and bottom with separate, the position that the loam cake rib can limit bottom again is set on the lateral surface of loam cake, help guaranteeing the stable of whole closed valve structure.
As preferably, closing device comprises feeding needle piece, seals blob of viscose, draws pin piece and rubber cushion, and the Bian Kouchu that blob of viscose is installed in loam cake is sealed in the feeding needle piece placement that matches with the inboard shape of loam cake, draw the pin piece and be installed in and seal in the blob of viscose, rubber cushion is arranged on and draws between pin piece and the bottom.
Feeding needle piece, draw the pin piece and the rubber cushion center all has the through hole of internal diameter greater than the fine needle external diameter, the bottom center of sealing blob of viscose is provided with width and seals the blob of viscose otch greater than the fine needle overall diameter.
Seal blob of viscose, draw the pin piece and be provided with the outside, and the diameter of outside is slightly less than the internal diameter of bottom, the external diameter that draws the pin piece is slightly less than the internal diameter that seals blob of viscose, the external diameter of rubber cushion and the outside equal diameters of drawing the pin piece.
Sealing blob of viscose and rubber cushion is flexible material, and feeding needle piece is a rigid material with drawing the pin piece.
Feeding needle piece and draw the pin piece as the guide structure in the closed valve, be used to guide penetrating of fine needle, make fine needle remain on the center penetrates always, rubber cushion is as bottom and draw structure between the pin piece and guarantee that both combine closely and guarantee sealing, drawing the pin piece places and seals in the blob of viscose, for the pin piece that draws of rigid material is used to guide fine needle accurately to pass to seal the blob of viscose middle position, seal the blob of viscose bottom surface and do not have through-hole structure, but seal to have on the blob of viscose bottom surface and seal the blob of viscose otch, fine needle can accurately pass under the band that draws the pin piece draw and seal the blob of viscose otch, because sealing blob of viscose is flexible material, when fine needle passes, seal blob of viscose otch part on every side and just can surround fine needle, just satisfied and can pass the effect that fine needle can guarantee that again bodkin is inner airtight, inflexible feeding needle piece then continues to guide fine needle to pass bodkin.
As preferably, cooperate the fine needle installed with the fine needle seat by the bodkin seat by the bodkin front end 20～70mm that stretches out.
Fine needle is as trying pin on, need at first pass dark vein, after fine needle is tried definite position on, just bodkin can be pushed forward into and accurately penetrate dark vein, according to the degree of depth of dark vein apart from epidermis, can be with the length setting of fine needle the fine needle seat cooperate with the bodkin seat install after, fine needle is by the front end of the bodkin 20～70mm that stretches out.
According to the technical solution of the utility model, the method of using bodkin to overlap fine needle reaches the bodkin fine needle and punctures simultaneously, be used to reduce the damage that causes owing to repeatedly trying on, make that can form closed chamber between syringe needle inner chamber and the blood vessel avoids gas to enter vein thereby partly connect closed valve, finish deep vein puncture puncture safety and precise that so just can be by few number of times at the needle tubing seat of bodkin.
Description of drawings
Fig. 1 is the cutaway view of this utility model embodiment.
The partial enlarged drawing of Fig. 2 accompanying drawing 1 closed valve part.
Fig. 3 is the cutaway view of this utility model embodiment bodkin.
The partial enlarged drawing of Fig. 4 accompanying drawing 3 closed valve part.
Fig. 5 is the cutaway view of this utility model embodiment fine needle.
The toponym that each number designation referred in the above accompanying drawing is as follows:
1-bodkin, 2-fine needle, 3-closed valve, 11-bodkin seat, 21-fine needle seat, 31-loam cake, 32-bottom, 33-stuck point, 34-feeding needle piece, 35-seal blob of viscose, 36-and draw pin piece, 37-rubber cushion, 311-loam cake rib, 351-and seal the blob of viscose otch.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment this utility model is described in further detail:
Embodiment, novel deep vein puncture pin, comprise bodkin 1 and fine needle 2, and the bodkin seat 11 and the fine needle seat 21 that link to each other with fine needle 2 with bodkin 1, be provided with closed valve 3 between bodkin 1 and the bodkin seat 11, fine needle 2 passes bodkin seat 11, closed valve 3 and bodkin 1 successively and is installed on the bodkin seat 11 by 21 cooperations of fine needle seat.Described closed valve 3 comprises loam cake 31 and the bottom 32 that cooperatively interacts, and is installed in the closing device in loam cake 31 and the bottom 32, and loam cake 31 links to each other with bodkin 1, and bottom 32 links to each other with bodkin seat 11.Constituting stuck point 33 by the depression that cooperatively interacts with projection on loam cake 31 and the bottom 32 links to each other.On the lateral surface of loam cake 31, be provided with the loam cake rib 311 identical with bottom 32 thickness.Closing device comprises feeding needle piece 34, seals blob of viscose 35, draws pin piece 36 and rubber cushion 37, feeding needle piece 34 placement that matches with the inboard shape of loam cake 31, seal blob of viscose 35 and be installed in the Bian Kouchu of loam cake 31, draw pin piece 36 and be installed in and seal in the blob of viscose 35, rubber cushion 37 is arranged on and draws between pin piece 36 and the bottom 32.Feeding needle piece 34, draw pin piece 36 and rubber cushion 37 centers all have the through hole of internal diameter greater than fine needle 2 external diameters, the bottom center of sealing blob of viscose 35 is provided with width and seals blob of viscose otch 351 greater than fine needle 2 overall diameters.Seal blob of viscose 35, draw pin piece 36 and be provided with the outside, and the diameter of outside is slightly less than the internal diameter of bottom 32, the external diameter that draws pin piece 36 is slightly less than the internal diameter that seals blob of viscose 35, the external diameter of rubber cushion 37 and the outside equal diameters of drawing pin piece 36.Seal blob of viscose 35 and rubber cushion 37 and be flexible material, feeding needle piece 34 and draw pin piece 36 and be rigid material.Cooperate the fine needle 2 installed by the bodkin 1 front end 40mm that stretches out with fine needle seat 21 by bodkin seat 11.
Bodkin 1 is split type with fine needle 2, the bodkin seat 11 of bodkin 1 and the fine needle seat 21 of fine needle 2 are the standard medical needles headstock, during use, fine needle 2 is at first penetrated in the bodkin 1, fine needle 2 passes rubber cushion 37 successively, and draw to pass under 36 tractions of pin piece and seal blob of viscose 35 by what hard material was made, seal and seal blob of viscose otch 351 on the blob of viscose 35, fine needle 2 passes and seals blob of viscose otch 351, seal blob of viscose otch 351 fine needle is wrapped, fine needle 2 enters bodkin 1 again under the traction of feeding needle piece 34, and the internal diameter of bodkin 1 is greater than the external diameter of fine needle 2, fine needle 2 grows 1 four ten millimeters of bodkins, the bodkin seat 11 fine needle seat 21 that just in time is locked.In use, with extended fine needle 2 try on puncture successfully after, bodkin 1 is pushed into appropriate depth forward, take out fine needle 2, bodkin seat 11 places by bodkin 1 penetrate No. seven syringe needles that have common five milliliters of syringes again, pumpback has blood, shows bodkin 1 position suitable.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of being done according to this utility model claim change and modify, and all should belong to the covering scope of this utility model patent.
Claims (9)
1. novel deep vein puncture pin, comprise bodkin (1) and fine needle (2), and the bodkin seat (11) and the fine needle seat (21) that link to each other with fine needle (2) with bodkin (1), it is characterized in that: be provided with closed valve (3) between bodkin (1) and the bodkin seat (11), fine needle (2) passes bodkin seat (11), closed valve (3) and bodkin (1) successively and is installed on the bodkin seat (11) by fine needle seat (21) cooperation.
2. novel deep vein puncture pin according to claim 1, it is characterized in that: described closed valve (3) comprises loam cake (31) and the bottom (32) that cooperatively interacts, and be installed in closing device in loam cake (31) and the bottom (32), loam cake (31) links to each other with bodkin (1), and bottom (32) links to each other with bodkin seat (11).
3. novel deep vein puncture pin according to claim 2 is characterized in that: loam cake (31) links to each other with projection formation stuck point (33) with the depression that bottom (32) is gone up by cooperatively interacting.
4. novel deep vein puncture pin according to claim 2 is characterized in that: be provided with the loam cake rib (311) identical with bottom (32) thickness on the lateral surface of loam cake (31).
5. novel deep vein puncture pin according to claim 2, it is characterized in that: closing device comprises feeding needle piece (34), seals blob of viscose (35), draws pin piece (36) and rubber cushion (37), feeding needle piece (34) placement that matches with the inboard shape of loam cake (31), seal blob of viscose (35) and be installed in the Bian Kouchu of loam cake (31), draw pin piece (36) and be installed in and seal in the blob of viscose (35), rubber cushion (37) is arranged on and draws between pin piece (36) and the bottom (32).
6. novel deep vein puncture pin according to claim 5, it is characterized in that: feeding needle piece (34), draw pin piece (36) and rubber cushion (37) center all has the through hole of internal diameter greater than fine needle (2) external diameter, the bottom center of sealing blob of viscose (35) is provided with width and seals blob of viscose otch (351) greater than fine needle (2) overall diameter.
7. novel deep vein puncture pin according to claim 6, it is characterized in that: seal blob of viscose (35), draw pin piece (36) be provided with the outside, and the diameter of outside is slightly less than the internal diameter of bottom (32), the external diameter that draws pin piece (36) is slightly less than the internal diameter that seals blob of viscose (35), the external diameter of rubber cushion (37) and the outside equal diameters of drawing pin piece (36).
8. novel deep vein puncture pin according to claim 7 is characterized in that: sealing blob of viscose (35) and rubber cushion (37) is flexible material, feeding needle piece (34) and to draw pin piece (36) be rigid material.
9. novel deep vein puncture pin according to claim 2 is characterized in that: cooperate the fine needle (2) installed by bodkin (1) front end 20～70mm that stretches out with fine needle seat (21) by bodkin seat (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475310U CN201624740U (en) | 2010-04-01 | 2010-04-01 | Novel deep vein puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201475310U CN201624740U (en) | 2010-04-01 | 2010-04-01 | Novel deep vein puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201624740U true CN201624740U (en) | 2010-11-10 |
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ID=43056119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201475310U Expired - Fee Related CN201624740U (en) | 2010-04-01 | 2010-04-01 | Novel deep vein puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201624740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815952A (en) * | 2014-03-03 | 2014-05-28 | 吉林大学 | Disposable special needle for puncture of neck |
| CN105286957A (en) * | 2015-10-30 | 2016-02-03 | 杭州市第一人民医院 | Puncture needle assembly used for trigeminal gasserian ganglion oppression surgery |
-
2010
- 2010-04-01 CN CN2010201475310U patent/CN201624740U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815952A (en) * | 2014-03-03 | 2014-05-28 | 吉林大学 | Disposable special needle for puncture of neck |
| CN103815952B (en) * | 2014-03-03 | 2015-11-11 | 吉林大学 | Disposable cervical region puncture special needle |
| CN105286957A (en) * | 2015-10-30 | 2016-02-03 | 杭州市第一人民医院 | Puncture needle assembly used for trigeminal gasserian ganglion oppression surgery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20110401 |