CN100368032C - Safety shape destruction medical needle - Google Patents
Safety shape destruction medical needle Download PDFInfo
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- CN100368032C CN100368032C CNB2005100272030A CN200510027203A CN100368032C CN 100368032 C CN100368032 C CN 100368032C CN B2005100272030 A CNB2005100272030 A CN B2005100272030A CN 200510027203 A CN200510027203 A CN 200510027203A CN 100368032 C CN100368032 C CN 100368032C
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- needle
- needle stand
- stand
- needle tubing
- medical
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Abstract
The present invention relates to a safety shape destroyed medical needle of medical appliances, which is composed of a sheath, a needle tube, a needle stand and a protective cover. The present invention is characterized in that a conduit which is penetrated longitudinally and has both opened ends is arranged in the front, the middle and the back of the needle stand. A mould cavity at the conduit part at the fixed section of the front needle tube or a lug on the inner wall is complementary and jogged with the needle tube which can be provided with a needle tube positioning structure to oriente the slope of the needle tube. A thin conduit wall is arranged in the shape destroyed section of the middle of the needle stand. A connecting base on the outer wall of the back of the needle stand is connected with the connecting arm of the protective cover so that the protective cover can move on the needle stand forwards and backwards and finally can coat the needle tube and the needle stand. Therefore, the needle tube is safely fixed in the longitudinal groove of the protective cover by a hook arm on an elastic wall block, and the thin conduit wall of the needle stand is punctured by a sharp inner bulge in the protective cover to destroy the shape of the whole medical needle. The end opening part behind the needle stand can be jogged or fixedly connected with the end opening part of other medical appliances, and therefore, the safety shape destroyed medical needle has wide versatility and stronger practicality. The design is a technique product which has a rational production process and is suitable for production of large scale.
Description
Technical field:
The present invention relates to the medical needle of tool needle stand in the medical apparatus and instruments, refer to a kind of entry needle that has the safety shape destruction device especially, transfusion, blood drawing pin, pin tools such as venous detaining needle, puncture needle and the sharp-pointed medical equipment that is fixedly connected with them.
Background technology:
Type sharp needles device safe in utilization, the proposal of avoiding unexpected stabbing in the treatment process and causing blood-borne pathogens to infect has been accepted by numerous medical personnels, the various safety pin devices that require therewith to adapt also emerge one after another, but because its practicality, defective on expensive, often cause these safety pin devices not accepted use widely, as various safety self-destructing syringes, because of pin, the incorporate structure of tube, can not finish the suction of conventional syringe, commentaries on classics liquid etc. needs pin, tube separates the function of carrying out, the extensive versatility of the alternative conventional syringe of tool not, simultaneously, the increase of production cost has further hindered its popularization again.In order to solve the above problems, world-renowned production, research and development type enterprise, as TERUMO company, BECTON, DICKINSON company is successively studied the safety device of medical needle, and applying for the patent of relevant design in recent years, as " the Safety Needle Assembly " of TERUMO company, the patent No.: USP6695819, USP6719737; " the Safety Shield Assembly " of B.D company, the patent No.: USP6440104, USP6780169, and corresponding Chinese patent application 200410061887.1 etc., these patented technologies are from the clinical practice demand, simplification production technology equal angles is set out and has been solved the problem that the medical needle safety is used, mainly the medical needle after the usefulness is played the effect of instantaneous safety protection, but malice is opened its locking device, reusing medical needle does not then have and effectively forbids measure and forbid structure, at the deficiency on the above-mentioned practicality, our patent 200410017774.1 has proposed needle stand is thoroughly unmake first, causes the whole medical needle only can expendable innovative design; In addition, because the patented technology of above-mentioned safety medical needle has the requirement of pinpoint inclined plane orientation, so under the requirement of production technology, generally can increase the annular Connection Block that is linked on the needle stand, is used to connect protecting cover is arranged, entire product is made up of sheath, needle tubing, needle stand, annular Connection Block and protecting cover five parts; Though the patented product of B.D company design desire is with the part assembly, as annular Connection Block and protecting cover, needle stand integrally casting, can reduce the assembling link in the production, but the production decision that can reach its each designing requirement simultaneously is unclear or backwardness, so be necessary further innovation is done in the design of product, make when reducing assembly, simplification production technology, reducing production costs, also can make product reach the effect of safety shape destruction.
Summary of the invention:
The object of the present invention is to provide a kind of medical sharp instrument safety operation requirement that meets, clinical practice is strong, production technology, the rational safety shape destruction medical needle device of production cost, the repeated use that can stop this type of pin device effectively prevents stabbing, infecting with the back needle point.
For reaching above-mentioned purpose, safety shape destruction medical needle of the present invention is made up of sheath, needle tubing, needle stand and protecting cover; Be characterized in that needle tubing can be the common needle tubing of tool needle tip, also have the needle tubing of needle tubing location structure at the rear portion, this location structure is meant the special external form structure or the wall defects at needle tubing rear portion; Needle stand by before, during and after three parts form, one vertically perforation, the open conduit of two-port are arranged in it, the front portion is the needle tubing canned paragraph, the front port of this section conduit is bell mouth shape, in order to collect viscose glue, this section conduit part has with the complementary die cavity of needle tubing location structure or projection is arranged on inwall, can be chimeric with the complementation of needle tubing location structure, stop the needle tubing that inserts needle stand to rotate, play the effect on location needle tubing, directed needle tubing inclined-plane; The middle part is the needle stand section of unmaking, the catheter wall of one side is thin easily to be broken up, whole medical needle is unmake, several reinforcements are arranged on the outer wall of middle part needle stand, can be chimeric, fixed cover closes sheath thereon, make sheath play the effect of needle tubing, needle point and needle stand stage casing conduit thin-walled before protection is used, the Connection Block that vertical protrusion is arranged on the rear portion needle stand outer wall of conduit thin-walled homonymy therewith, the one column type hanging scroll to outer lug is respectively arranged on the two sides of Connection Block, be used for the linking arm on the chimeric connection protecting cover; The rear end oral area of needle stand and the port part of other medical equipments can chimericly be joined, and as connecting transfusion, blood drawing pin device etc., the port part of other medical equipments that also can be fixedly connected becomes one, and as conjuncted with syringe, makes it to become safety self-destructing syringe; Protecting cover is made of roof and two side, bottom surface opened and form an inner pod, the narrower needle tubing that comprises in its front portion, the rear portion broad can wrap up needle stand, divisible formation one or several piece top attachment on the anterior sidewall, the free elastic wall piece in two limits, be associated with on the inwall of each elastic wall piece and point in the pod, on the hook arm, can fixedly enter the needle tubing of pod, the lateral surface of rear portion broad roof forms and refers to step-by-step, have inwardly protruded pointed interior prominent on the medial surface of roof, there is the air slot that is recessed to form in wall portion prominent in this is pointed, being convenient to dash forward in pointed, needle tubing and needle stand inner catheter recover normal pressure when breaking up the needle stand section of unmaking upper conduit thin-walled, be associated with a relative linking arm at the protecting cover afterbody, on each linking arm perforation is arranged, can with chimeric the joining of hanging scroll on the needle stand outer wall Connection Block, and can this hanging scroll be that the axle center promotes to rotate before and after the protecting cover, final parcel needle stand and needle tubing, and touched and broken up the conduit thin-walled of needle stand unmake section because of the pointed convex of protecting cover inboard this moment, cause needle stand to lose efficacy, whole medical needle is unmake, can not reuse.
No matter be needle tubing location structure and complementary die cavity of needle stand leading portion conduit part or the chimeric needle tubing location technology of projection that adopts among the present invention, carry out mechanical assembly, still adopt common needle tubing to carry out the assembling of artificial orientation's needle point, the production technology of this production, operation and frock are all similar to the production of traditional product, the protecting cover assembling of in the end carrying out makes this medical needle have the safety shape destruction function, has also reached the reasonable production technology of requirement of the present invention, the purpose of design of program simultaneously.
The present invention a kind ofly has that clinical practice is strong, the rational innovative product of production technology with what the world medical sharp instrument safety operation requirement was that criterion designs, and it has following advantage:
1. the design of hommization, as the anterior sidewall of protecting cover cut apart elastic wall piece, the rear portion of formation pointed in the air slot etc. of prominent wall portion, can make this product when meeting medical sharp instrument safety operation requirement, also can be more easily, of low pollution, one-handed performance reliably, reach the effect that the pin device unmakes.
2. clinical practice is strong, and it can be widely and existing chimeric joining of various medical equipments, keeps the operational approach of original medical equipment, carries out the various functions of original medical equipment; Also can be fixedly connected with some medical equipments simultaneously makes it become the sharp instrument of safety self-destructing.
3. adapt to the requirement of large-scale production, as the design of the complementary form design of needle tubing location structure and needle stand leading portion conduit, needle stand rear portion Connection Block etc., all can adopt traditional production technology at present, frock is carried out large-scale production, and production cost is reduced and the raising of product price ratio.
Description of drawings:
Fig. 1 is the structural representation of safety shape destruction medical needle of the present invention
Fig. 2 uses preceding structural representation for safety shape destruction medical needle of the present invention
Fig. 3 is the perspective view of safety shape destruction medical needle needle tubing of the present invention
Fig. 4 is the perspective view of safety shape destruction medical needle needle stand of the present invention
Fig. 5 is the side-looking structural representation of Fig. 4
Fig. 6 is the A-A place cross section structure sketch map of Fig. 5
Fig. 7 is safety shape destruction medical needle of the present invention and the conjuncted structural representation of syringe
Fig. 8 is the perspective view of safety shape destruction medical needle protecting cover of the present invention
Fig. 9 is the side-looking structural representation of Fig. 8
Figure 10 is the structural representation of looking up of Fig. 8
Figure 11 is the structural representation behind the safety shape destruction medical needle safety shape destruction of the present invention
The specific embodiment:
At first consult shown in Figure 1, safety shape destruction medical needle of the present invention is made up of sheath 1, needle tubing 2, needle stand 3 and protecting cover 4, its characteristics are: see also Fig. 3, needle tubing 2 can be the common needle tubing of tool needle tip 21, the needle tubing that also has needle tubing location structure 22 at the rear portion, this location structure 22 are meant the special external form structure or the wall defects at needle tubing 2 rear portions; Consult Fig. 4,5, needle stand 3 by before, during and after three parts form, have in it one vertically connect, conduit 31 that two-port is open, the front port 311 of conduit 31 is bell mouth shape, in order to collect viscose glue, the fixing needle tubing 2 that inserts in the needle stand 3; The front portion of needle stand 3 is needle tubing canned paragraphs 32, its inner catheter portion have with needle tubing location structure 22 complementary die cavities or inwall on projection 321 is arranged, can be complementary chimeric with needle tubing location structure 22, stop the needle tubing 2 that inserts needle stand 3 to rotate, play the effect of location needle tubing 2, directed pinpoint inclined plane 211; Again in conjunction with Fig. 6,8, the middle part of needle stand 3 is needle stand sections of unmaking 33, one side catheter wall is thin, this conduit thin-walled 331 can be broken up by pointed interior prominent 47 in the protecting cover 4, whole medical needle is unmake, several reinforcements 332 are arranged on the outer wall at needle stand 3 middle parts, can be chimeric, fixed cover closes sheath 1 (as shown in Figure 1) thereon, the needle tip 21 that sheath 1 is played protect needle tubing 2 before use and the effect of needle stand 3 middle part conduit thin-walleds 331; With the outer wall of the rear portion needle stand 3 of conduit thin-walled 331 homonymies on vertical protrusion is arranged, can be connected the Connection Block 34 of protecting cover 4, the one column type hanging scroll 35 to outer lug is respectively arranged on the two sides of Connection Block 34, be used for the linking arm 48 (in conjunction with Fig. 8,2) on the chimeric connection protecting cover 4; The rear end oral area 312 of needle stand 3 can chimericly join with the port part of other medical equipments, as connecting transfusion, the pin device etc. of drawing blood, the port part of other medical equipments that also can be fixedly connected becomes one, as conjuncted, make it to become safety self-destructing syringe (as shown in Figure 7) with syringe; Please continue to consult Fig. 8,9, shown in 10, protecting cover 4 is made of roof 41 and two side 42, bottom surface opened and form an inner pod 43, the narrower needle tubing 2 that comprises in the front portion of pod 43, the rear portion broad can wrap up needle stand 3, have on the anterior sidewall 42 and cut apart formation one or several piece top attachment, the free elastic wall piece 44 in two limits, be associated with on the inwall of each elastic wall piece 44 and point in the pod 43, on hook arm 45, can fixedly enter the needle tubing 2 of pod 43, the lateral surface of rear portion broad roof 41 forms and refers to step-by-step 46, on the medial surface of roof 41 inwardly protruding is arranged, pointed interior prominent 47 of tool air slot, prominent 47 wall portion is by the air slot 471 that is recessed to form in pointed, be convenient to pointed in prominent 47 when breaking up the needle stand section of unmaking 33 upper conduit thin-walleds 331 needle tubing 2 and needle stand 3 inner catheters 31 recovery normal pressures, be associated with a relative linking arm 48 at protecting cover 4 afterbodys, perforation 481 is arranged on each linking arm 48, can with 35 chimeric the joining of hanging scroll on the needle stand 3 outer wall Connection Blocks 34, and can rotate for the axle center promotes protecting cover 4 front and back by this hanging scroll 35, finally wrap up needle stand 3 and needle tubing 2 (as shown in figure 11).
In conjunction with Fig. 3,4,5 as seen, the needle tubing location structure 22 at needle tubing 2 rear portions in the present invention's design can be chimeric effectively with the complementary die cavity or the projection 321 of needle stand 3 leading portion conduit part, location needle tubing 2 in needle stand 3, directed pinpoint inclined plane 211, solved critical technical problems in the mechanical assembly, make in the production process in early stage, can continue to use the production technology of present traditional product on the frock, obviously reduced production cost, last only need assembling protecting cover 4 on the Connection Block 34 of needle stand 3, and this moment needle tubing 2 needle tip 21 and the conduit thin-walled 331 on the needle stand section of unmaking 33 by sheath 1 upper shield, protection; Take out sheath 1 (as shown in Figure 2) when using, needle tip 21 and conduit thin-walled 331 expose; Promoting after operation is finished changes before the protecting cover 4, the pointed interior prominent 47 conduit thin-walleds 331 that can touch and break up on the needle stand section of unmaking 33 in the protecting cover 4, and the moment of breaking up, air slot 471 on pointed interior prominent 47 makes needle tubing 2 immediately, needle stand 3 inner catheters 31 recover normal pressure, make the remaining timely resorption of pin intraluminal fluid of possibility, meanwhile needle tubing 2 enters in the pod 43 in the protecting cover 4 and slips in the elastic wall piece 44 inboard hook arms 45 that form, the needle tip 21 of needle tubing 2 is fixed in the pod of anterior protecting cover 4 (as shown in figure 11) safely, the needle stand 3 of this moment has broken, lost efficacy, whole medical needle has reached the purpose of safety shape destruction.
Above-mentioned is safety shape destruction medical needle structural design of the present invention and operating principle, all with design of the present invention, principle and design similar products like and ought to belong to protection scope of the present invention.
Claims (9)
1. a safety shape destruction medical needle is made up of sheath, needle tubing, needle stand and protecting cover, it is characterized in that:
The rear portion of needle tubing can have the needle tubing location structure;
Needle stand by before, during and after three parts form, one vertically perforation, the open conduit of two-port are arranged in it, the conduit part of anterior needle tubing canned paragraph have with complementary die cavity of needle tubing location structure or inwall on projection is arranged, one side catheter wall of the middle part needle stand section of unmaking is thin, and the Connection Block of vertical protrusion is arranged on the rear portion needle stand outer wall of conduit thin-walled homonymy therewith;
Protecting cover is made of roof and two side, has on the anterior sidewall to cut apart formation one or several piece elastic wall piece, is associated with the hook arm on its inwall, and the pointed interior prominent of tool air slot arranged on the roof medial surface of rear portion, and the protecting cover afterbody is associated with a relative linking arm.
2. safety shape destruction medical needle according to claim 1 is characterized in that: described needle tubing location structure is meant the special external form structure or the wall defects at needle tubing rear portion.
3. safety shape destruction medical needle according to claim 1, it is characterized in that: the complementary die cavity or the projection on the inwall of the anterior needle tubing canned paragraph of described needle stand conduit part can be chimeric with the complementation of needle tubing location structure, stop the needle tubing that inserts needle stand to rotate, play the effect of location needle tubing, directed pinpoint inclined plane.
4. safety shape destruction medical needle according to claim 1 is characterized in that: described middle part needle stand, several reinforcements are arranged on its outer wall, and can be chimeric, fixed cover closes sheath thereon.
5. safety shape destruction medical needle according to claim 1 is characterized in that: the Connection Block of projection on the needle stand outer wall of described rear portion, a cylindricality hanging scroll to outer lug is respectively arranged on its two sides, and be used for the linking arm on the chimeric connection protecting cover.
6. safety shape destruction medical needle according to claim 1 is characterized in that: described rear portion needle stand, its rear end oral area and other medical equipment port part can chimericly be joined and also can be fixedly connected, become one.
7. safety shape destruction medical needle according to claim 1, it is characterized in that: on the described protecting cover elastic wall piece be by anterior sidewall cut apart, top attachment, two limits are free forms, be associated with on its inwall point in the pod, on the hook arm, can fixedly enter the needle tubing of pod.
8. safety shape destruction medical needle according to claim 1, it is characterized in that: pointed interior the dashing forward of described protecting cover tool air slot, be meant that inwardly protruded on the roof medial surface of protecting cover rear portion, Qi Bibu has pointed interior the dashing forward that is recessed to form air slot, when being convenient to dash forward in pointed conduit thin-walled on breaking up the needle stand section of unmaking, needle tubing and needle stand inner catheter recover normal pressure.
9. safety shape destruction medical needle according to claim 1, it is characterized in that: the linking arm of described protecting cover afterbody, perforation is arranged on it, can with chimeric the joining of hanging scroll on the needle stand outer wall Connection Block, and can this hanging scroll be that the axle center promotes to rotate before and after the protecting cover, finally wrap up needle stand and needle tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100272030A CN100368032C (en) | 2005-06-28 | 2005-06-28 | Safety shape destruction medical needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100272030A CN100368032C (en) | 2005-06-28 | 2005-06-28 | Safety shape destruction medical needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1701822A CN1701822A (en) | 2005-11-30 |
| CN100368032C true CN100368032C (en) | 2008-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100272030A Expired - Fee Related CN100368032C (en) | 2005-06-28 | 2005-06-28 | Safety shape destruction medical needle |
Country Status (1)
| Country | Link |
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| CN (1) | CN100368032C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006013322A1 (en) * | 2006-03-21 | 2007-09-27 | Sarstedt Ag & Co. | Canula has protective housing consisting of two sections plugged into each other, wherein inner housing has lamella pair, and outer housing is formed as sleeve which is less elastic with regard to inner housing |
| CN102363056B (en) * | 2011-08-01 | 2013-06-05 | 上海萌黎国际贸易有限公司 | Needle head protection device and safety needle component |
| CN107737391A (en) * | 2017-11-08 | 2018-02-27 | 温州京环科技有限公司 | Safety type injection needle |
| CN107900082A (en) * | 2017-12-13 | 2018-04-13 | 天津神州视联科技有限公司 | A kind of medical instrument shape-destruction device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3845762A (en) * | 1970-09-24 | 1974-11-05 | Nesco Plastics Inc | Syringe |
| US5232454A (en) * | 1990-08-01 | 1993-08-03 | Smiths Industries Medical Systems, Inc. | Safety needle container |
| US6436086B1 (en) * | 1998-08-28 | 2002-08-20 | Becton Dickinson And Company | Method of using a safety shield assembly and related combinations thereof |
| CN1562397A (en) * | 2004-04-20 | 2005-01-12 | 钱倚天 | Safeguard protection setting for expendable needle in use for medical treatment |
| CN2812960Y (en) * | 2005-06-28 | 2006-09-06 | 钱倚天 | Safety destroying medical needle |
-
2005
- 2005-06-28 CN CNB2005100272030A patent/CN100368032C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3845762A (en) * | 1970-09-24 | 1974-11-05 | Nesco Plastics Inc | Syringe |
| US5232454A (en) * | 1990-08-01 | 1993-08-03 | Smiths Industries Medical Systems, Inc. | Safety needle container |
| US6436086B1 (en) * | 1998-08-28 | 2002-08-20 | Becton Dickinson And Company | Method of using a safety shield assembly and related combinations thereof |
| CN1562397A (en) * | 2004-04-20 | 2005-01-12 | 钱倚天 | Safeguard protection setting for expendable needle in use for medical treatment |
| CN2812960Y (en) * | 2005-06-28 | 2006-09-06 | 钱倚天 | Safety destroying medical needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1701822A (en) | 2005-11-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20100628 |