CN1276782C - Fiberoptic slider and transfusable fiberoptic needle using the same - Google Patents
Fiberoptic slider and transfusable fiberoptic needle using the same Download PDFInfo
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- CN1276782C CN1276782C CN 03135460 CN03135460A CN1276782C CN 1276782 C CN1276782 C CN 1276782C CN 03135460 CN03135460 CN 03135460 CN 03135460 A CN03135460 A CN 03135460A CN 1276782 C CN1276782 C CN 1276782C
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- optical fiber
- needle
- piston
- needle stand
- syringe
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Abstract
The present invention relates to a needle core of an optical fiber needle for laser radiation treatment in a blood vessel. The needle core comprises a needle stand which is used for fixing optical fibers and is provided with a core hole at the middle, and optical fibers fixedly arranged in the core hole. The optical fiber front end serving as an optical fiber needle extends out of the front end of the needle stand. A piston made from elastic material is fixed to or sheathed with the front end head of the needle stand, and is provided with a through hole through which the optical fiber needle can pass. Interference fit is formed between the through hole and the optical fiber needle. The optical fiber needle core uses an elastic piston head to seal the optical fibers and the needle stand and omits an adhesive agent which is harmful to a human body. Therefore, blood can not be polluted and harm to a human body can not be caused. The elasticity of the piston is very good. When the optical fiber needle is stressed and bent, the stress is dispersed because of the elastic contact between the stressed root and the piston. Therefore, the optical fiber needle is not easy to fracture. The longer and softer needle stand also causes the optical fiber needle to be better used and operated. The present invention also relates to an optical fiber needle using the optical fiber needle core for transfusion.
Description
(1) technical field:
The present invention relates to a kind of nook closing member that is used for the optical fiber pin of intravascular laser irradiation treatment, and the optical fiber needle for infusion that uses this optical fiber nook closing member.
(2) background technology:
Existing optical fiber nook closing member all is to be made of optical fiber needle stand that offers the core hole and the optical fiber that is installed in the optical fiber needle stand core hole, as application number is 93115054.x, name is called the Chinese patent of " Disposable plastical optic fibre needle for radiation in blood vessel ", the front end of optical fiber stretches out outside the needle stand front end, constitute the optical fiber syringe needle, owing to be installed in the middle residual crack of meeting of optical fiber and needle stand core hole in the needle stand core hole, therefore all need use bonding agent that optical fiber and needle stand are cemented, fixing, and make between them and seal, prevent to leak out the seam of blood between optical fiber and needle stand, owing to intravasation behind the sticking bad blood that comes off of bonding agent, thereby human body is damaged, particularly in optical fiber needle for infusion, be called " a kind of optical fiber needle for infusion " for the 00112623.x name and application number is 99114936.x as application number, name is called the Chinese patent of " a kind of optical fiber needle for infusion ", owing to be soaked in the medicinal liquid during transfusion of optical fiber nook closing member, when blood back, be soaked in again in the blood, therefore can damage human body.And because bonding agent is harder after solidifying, make and are almost optical fiber and being connected of needle stand the rigidity connection, like this, when optical fiber syringe needle pressurized bends, the reverse elastic force of its front end is bigger, the plasticity of bending deformation is relatively poor, and difficulty is bigger when manipulating, and because optical fiber crown portion is subjected to the fixing of non deformable bonding agent, when the stressed bending of optical fiber syringe needle, the suffered stress maximum of its root, and stress concentration is in any makes that optical fiber crown portion is very easy to be fractureed.
(3) summary of the invention:
The present invention will disclose a kind of non-leakage, safety non-toxic, and not frangibility the optical fiber nook closing member and use the optical fiber needle for infusion of this optical fiber nook closing member.
Identical with existing optical fiber nook closing member, optical fiber nook closing member of the present invention also comprise be used for fixing optical fiber, the centre offers the needle stand in core hole and is installed in optical fiber in the core hole, optical fiber front end as the optical fiber syringe needle stretches out the needle stand front end, the needle stand front end of different is this optical fiber pin also is provided with the piston that an elastomeric material is made, piston is the shell-like that the rear end is provided with the interface that caves in, be placed in the front end of needle stand, offer the through hole that can allow the optical fiber syringe needle pass on the piston, and, should be interference fit between through hole and the optical fiber for sealing ne-leakage between assurance optical fiber and needle stand.The material of making piston can be the elastomeric material for the body harmless such as medical poisonless rubber or silica gel, it also can be the new-type plastic cement of excellent elasticity, as long as it is nontoxic and enough elasticity arranged, guarantee both tightly to have wrapped optical fiber, make between optical fiber and the piston and seal ne-leakage, enough elasticity is arranged when guaranteeing that the optical fiber syringe needle is stressed again, the stress of enough deformation with dispersion optical fiber syringe needle root can take place in the junction of piston and optical fiber, makes stress be unlikely to too concentrated and causes the optical fiber pin to fracture to get final product.Piston not only can make between needle stand and syringe and seal, prevent seepage, when also being with syringe outside this optical fiber nook closing member, piston can also serve as the positioner between optical fiber nook closing member and syringe, frictional force between piston and cylinder is enough to allow the optical fiber nook closing member be fixed on the position that is set up in use and can take place between syringe from line slip, and piston is also with the gap sealing between optical fiber nook closing member and syringe; In order to make sealing and location between optical fiber nook closing member and syringe more reliable, the piston outside also can be provided with annular seal ring; Sealing ring can be one, also can be two or more, takes all factors into consideration according to the width or the shape of selected elastic properties of materials and sealing ring.In order to guarantee that piston tightly is placed in the needle stand front end, occurrence positions or come off not from needle stand, preferably be provided with fixture between piston and the needle stand, fixture can be for increase the rat that resistance is provided with on the piston shell-like is caved in the medial surface of interface and needle stand lateral surface, also can be the ring-type bulge loop and the draw-in groove that are fitted to each other that on them, is provided with, can certainly adopt alternate manner to make them better fixing each other.
This optical fiber nook closing member can directly serve as the optical fiber pin, as long as with stifled core of the convex of needle stand back end design Cheng Keyu laser generator outfan connection or depression interface.Because the optical fiber pin is the laser generator of directly pegging graft in the rear end in use, and the diameter of existing laser generator is bigger than the diameter of optical fiber needle stand, length is longer, weight is also heavier, when needle stand is hard than weak point, the laser generator that is directly connected in the needle stand rear end will make whole optical fiber pin that a bigger inclination angle is arranged in use, the easy like this optical fiber pricking wound blood vessel that makes front end be fixed with puncture needle, the fixedly difficulty of operation and optical fiber pin is strengthened, therefore, needle stand is preferably designed as more elongated shape, the needle stand tail that makes the needle stand rear end and laser instrument be connected needle stand head away from the needle stand front end, can adjust the angle of optical fiber syringe needle arbitrarily like this and not be subjected to the restriction of rear end laser instrument.This moment, needle stand was generally by the needle stand head of front end, the needle stand tail of rear end and be connected in the needle stand head and the needle stand tail between the needle stand body constitute, needle stand head and needle stand tail can be harder, and the needle stand body must be deformable soft structure; Because have only an optical fiber in the needle stand body, so it can be thinner, also can be softer, and it can and be wrapped in the outer flexible protective casing of optical fiber by optical fiber and constitute.This optical fiber nook closing member can also constitute optical fiber needle for infusion jointly with the syringe that is placed in outside it, the syringe front end offered and can allow the optical fiber syringe needle pass and the effusive core of medicinal liquid hole this moment, also offer the medicinal liquid import on it, the optical fiber nook closing member is plugged in the syringe intracavity posterior end, the syringe front end can also be fixed with the trocar, also fixing puncture needle, the optical fiber syringe needle is through in the trocar or the puncture needle, for the optical fiber syringe needle being shunk in convenient puncture or transfusion in the puncture needle in puncture or when transfusion, and it is outer in case the stifled pin hole of hemostasis fluid-tight reduces laser irradiation power the optical fiber syringe needle to be stretched out when carrying out laser radiation the trocar or puncture needle, make the comprehensive uniform irradiation of optical fiber syringe needle simultaneously, the optical fiber nook closing member is preferably in the syringe and can slides front and back, when promoting needle stand this moment behind the pro-with adjustment optical fiber needle position, the position that can needle stand be remained on to adjust does not take place from line slip, also can on syringe, offer a reciprocal locating slot, and a locator card to outer lug that matches with it is set on needle stand, this reciprocal positioner can limit the length that the optical fiber syringe needle stretches out and withdraws more accurately, and it is more convenient also safer therefore to operate.
Because this optical fiber nook closing member uses the elastic piston head to come hermetic fiber and needle stand, and the elastic piston head is made by harmless elastomeric material, omitted harmful bonding agent, therefore can contaminated blood and human body is caused damage, and because optical fiber and piston space adopt interference fit, piston can will seal fabulously between it and the optical fiber and the phenomenon of seepage blood and slime can not occur, and the excellent elasticity of piston, connecting portion between it and the optical fiber is that elasticity is mouldable, when the stressed bending of optical fiber syringe needle, between root that it is stressed and the piston owing to being that Elastic Contact is disperseed stress, therefore the optical fiber syringe needle is difficult for being fractureed, and long more softish needle stand also makes this optical fiber pin better use and operates; And for optical fiber needle for infusion of the present invention, owing to having used above-mentioned optical fiber nook closing member to have above-mentioned advantage, and owing to also be interference fit between the piston of above-mentioned optical fiber nook closing member and the syringe, it is more reliable that sealing between optical fiber nook closing member and syringe also becomes, and need not use bonding agent, prevented pollution, piston also can be realized positioning function simultaneously, more reasonable, more reliable than needle stand of making between original relatively hard materials and the fit system between syringe, the production product percent of pass is higher, and the cost cost is lower.The optical fiber needle for infusion that is provided with reciprocal positioner has then set the length that the optical fiber pin stretches out withdrawal, and it is more convenient to operate, also science more.
(4) description of drawings:
Fig. 1 is a kind of embodiment structural representation of the simplest optical fiber nook closing member;
Fig. 2 is provided with the embodiment structural representation of the optical fiber nook closing member of depression interface for the needle stand rear end;
Fig. 3 is the optical fiber nook closing member structural representation that is provided with the connector that is connected with other corollary apparatus;
Fig. 4 is a kind of structural representation of simple optical fiber needle for infusion;
Fig. 5 is the structural representation that has the optical fiber needle for infusion of the chemicals dosing plant that can repeatedly puncture;
Fig. 6 is the optical fiber needle for infusion structural representation that has puncture needle and reciprocal positioner;
Fig. 7 is that the B of Fig. 6 is to partial view;
Fig. 8 is the described embodiment structural representation of Fig. 6 that is added with stifled core;
Fig. 9 is the embodiment structural representation shown in Figure 6 with soft needle stand structure;
Figure 10 is the embodiment structural representation shown in Figure 9 that is added with stifled core.
(5) specific embodiment:
Figure 1 shows that the simplest embodiment of optical fiber nook closing member of the present invention, in this embodiment, the optical fiber nook closing member by the center offer the core hole needle stand 1, be installed in the optical fiber 2 in the needle stand 1 core hole, the piston of being made by elastomeric material 3 is the shell-like that the rear end is provided with the depression interface, be placed in the front end of needle stand 1, also offer the through hole that allows optical fiber 2 pass on the piston 3, also be provided with O-ring seal 4 on the lateral surface of piston 3, the cave in inboard of interface and the needle stand 1 front end outside of piston 3 shell-likes is provided with the fixture 5 that ring-type convex clip and draw-in groove constitute.This optical fiber nook closing member can directly use as the optical fiber pin, also can be plugged in the syringe 6, is used with syringe 6.In the present embodiment, can not establish sealing ring 4, fixture 5 also can have other structure.
This optical fiber nook closing member also can be as shown in Figure 2, and needle stand 1 rear end is provided with the interface that can be connected with laser instrument that caves inward, and the optical fiber nook closing member of this moment in fact promptly is a kind of optical fiber pin.This optical fiber nook closing member also can have multiple shape, be used to increase other function or convenience and other device as additional different parts, as shown in Figure 3, on needle stand 1, also be provided with one and connect blind nut 7, this blind nut 7 can be connected to the optical fiber pin outer end of the trocar, after finishing puncture, transfers to puncture needle, the optical fiber syringe needle is through in the trocar and fixing, can carries out laser radiation to connect blind nut 7; This moment, blind nut 7 both played interconnect function, played sealing function again.Fig. 4 is the optical fiber needle for infusion that optical fiber nook closing member blocking shown in Figure 1 is formed in syringe 6, and the front end of syringe 6 offers and can allow optical fiber syringe needle 2 pass and the effusive core of medicinal liquid hole 6a, also is provided with feeding opening 6b on the syringe 6; Syringe 6 can as shown be pre-small post-large horn-like, and the optical fiber nook closing member moves forward and backward in the chamber within it, and fixes by the frictional force between piston 3 outer walls and syringe 6 inwalls.Fig. 5 also is a kind of optical fiber needle for infusion, and in this embodiment, syringe 6 intracavity posterior ends also are provided with the slip-off preventing card 8 that can prevent that needle stand 1 front end from coming off out; Optical fiber needle for infusion shown in Figure 6, the 6a place, front end core hole of syringe 6 also is fixed with puncture needle 9, and optical fiber syringe needle 2 is located in puncture needle 9 inner chambers, in the present embodiment at this moment, also be provided with a reciprocal locating slot 11 on the syringe 6, needle stand 1 is provided with a location convex clip 12 that matches with it.Back and forth locating slot 11 can be as shown in Figure 7, for front end band transverse groove rear end is the L shape of cannelure, the puncture needle outer end of present embodiment also can be provided with the sheath 10 that front end is provided with optical transmission window, and need not to remove sheath 10 can carry out the detection of laser power this moment, again contaminated pinhead not; The feeding opening 6b of syringe 6 can be connected with transfusion interface 13; and needle stand 1 rear end can be the interface that caves inward; also the back is added with stifled core 14 with convenient and different laser instrument connections as shown in Figure 8; the needle stand 1 of optical fiber nook closing member can also be as Fig. 9; shown in Figure 10 by needle stand head 1b; needle stand tail 1b and be connected in needle stand head 1a and needle stand tail 1b between the flexible needle stand body of elongate 1c constitute; the needle stand tail 1b of this moment and be connected in needle stand head 1a and all available harder material of needle stand tail 1b is made, and needle stand body 1c can be as shown in the figure by optical fiber be wrapped in its outer flexible protective casing and constitute.
Claims (10)
1, a kind of optical fiber nook closing member, comprise that the centre that is used for fixing optical fiber offers the needle stand and the optical fiber that is installed in the core hole in core hole, stretch out the front end of needle stand as the optical fiber front end of optical fiber syringe needle, it is characterized in that: needle stand (1) front end termination is provided with the piston (3) that an elastomeric material is made, piston (3) rear end is the shell-like that is provided with the interface that caves in, be placed in the front end of needle stand (1), offering the through hole that can allow optical fiber syringe needle (2) pass on the piston (3), is interference fit between through hole and the optical fiber syringe needle (2).
2, optical fiber nook closing member according to claim 1 is characterized in that: the lateral surface of piston (3) is provided with annular seal ring (4).
3, optical fiber nook closing member according to claim 1 and 2 is characterized in that: piston (3) shell-like is caved on the medial surface of interface and is provided with between needle stand (1) front end and is convenient to piston (3) and is fixed in fixture (5) on the needle stand (1).
4, optical fiber nook closing member according to claim 3 is characterized in that: described fixture is piston (3) the shell-like ring-type bulge loop and the draw-in groove that are fitted to each other that the rat that is provided with on the medial surface of interface and needle stand (1) lateral surface or piston (3) shell-like cave in and be provided with on the medial surface of interface and needle stand (1) lateral surface that cave in.
5, a kind of optical fiber needle for infusion, the optical fiber nook closing member that is provided with the core hole that can allow the optical fiber syringe needle pass, also is provided with the syringe of feeding opening on it and is inserted in the syringe intracavity posterior end by front end constitutes, it is characterized in that: the needle stand of described optical fiber nook closing member (1) front end termination is provided with the piston (3) that an elastomeric material is made, piston (3) rear end is the shell-like that is provided with the interface that caves in, be placed in the front end of needle stand (1), offering the through hole that can allow optical fiber syringe needle (2) pass on the piston (3), is interference fit between through hole and the optical fiber syringe needle (2).
6, optical fiber needle for infusion according to claim 5 is characterized in that: the lateral surface of piston (3) is provided with annular seal ring (4).
7, optical fiber needle for infusion according to claim 5 is characterized in that: piston (3) shell-like is caved on the medial surface of interface and is provided with between needle stand (1) front end and is convenient to piston (3) and is fixed in fixture (5) on the needle stand (1).
8, optical fiber needle for infusion according to claim 7 is characterized in that: described fixture is piston (3) the shell-like ring-type bulge loop and the draw-in groove that are fitted to each other that the rat that is provided with on the medial surface of interface and needle stand (1) lateral surface or piston (3) shell-like cave in and be provided with on the medial surface of interface and needle stand (1) lateral surface that cave in.
9, according to claim 5 or 6 described a kind of optical fiber needle for infusion, it is characterized in that: place, syringe (6) front end core hole also is fixed with puncture needle (9).
10, according to any one described a kind of optical fiber needle for infusion in claim 5 or 6, it is characterized in that: syringe (6) rear end also is provided with reciprocal locating slot (11), and needle stand this moment (1) is provided with the locator card (12) that matches with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03135460 CN1276782C (en) | 2003-07-18 | 2003-07-18 | Fiberoptic slider and transfusable fiberoptic needle using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03135460 CN1276782C (en) | 2003-07-18 | 2003-07-18 | Fiberoptic slider and transfusable fiberoptic needle using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1481908A CN1481908A (en) | 2004-03-17 |
| CN1276782C true CN1276782C (en) | 2006-09-27 |
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ID=34154646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03135460 Expired - Fee Related CN1276782C (en) | 2003-07-18 | 2003-07-18 | Fiberoptic slider and transfusable fiberoptic needle using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1276782C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921076A (en) * | 2012-11-13 | 2013-02-13 | 江台安 | Injection sleeve group |
| US10786650B2 (en) * | 2015-10-28 | 2020-09-29 | Becton, Dickinson And Company | Catheter adapter providing catheter kink resistance |
| EP3409211B1 (en) * | 2016-01-25 | 2019-12-11 | Fujifilm Corporation | Implant and attachment member |
| CN107157578B (en) * | 2017-07-03 | 2023-05-23 | 沈阳雷卓激光医疗器械有限公司 | Shearable laser handle structure compatible with disposable optical fiber needle |
-
2003
- 2003-07-18 CN CN 03135460 patent/CN1276782C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1481908A (en) | 2004-03-17 |
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Granted publication date: 20060927 Termination date: 20150718 |
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