CN103815919A - Safe blood-taking-needle holder - Google Patents
Safe blood-taking-needle holder Download PDFInfo
- Publication number
- CN103815919A CN103815919A CN201410103898.5A CN201410103898A CN103815919A CN 103815919 A CN103815919 A CN 103815919A CN 201410103898 A CN201410103898 A CN 201410103898A CN 103815919 A CN103815919 A CN 103815919A
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- CN
- China
- Prior art keywords
- inner sleeve
- trocar sheath
- slide block
- blood taking
- needle holder
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Abstract
The invention relates to a safe blood-taking-needle holder. The safe blood-taking-needle holder comprises an outer sleeve and an inner sleeve, wherein the center of the opening of the front end of the outer sleeve is connected with a blood-taking-needle connecting base through a connecting rib plate, a sliding groove is axially formed in the wall of the outer sleeve, and the rear end of the sliding groove is provided with an opening; the inner sleeve is arranged in the outer sleeve in a sliding mode, a guide groove matched with the connecting rib plate is axially arranged on the wall of the inner sleeve, the front end of the guide groove is provided with an opening, the outer wall is provided with a sliding block, and the sliding block protrudes outwards and can slide along the sliding groove of the outer sleeve; a locating clamping groove matched with the sliding block is formed in the portion, close to the opening at the rear end, in the sliding groove, and a locking clamping groove matched with the sliding block is formed in the front portion of the sliding groove. The safe blood-taking-needle holder is reasonable in structure, convenient to mount, dismount and use, easy to operate, and capable of effectively preventing a blood taking needle from pricking medical workers and cleaners in a using process, thereby preventing cross infection caused by accidental pricking by the needle, and being good in safety.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically a kind of safety blood taking needle needle holder.
Background technology
We know, blood taking needle, blood taking tube are the requisite instruments of blood collection procedure.What the past was generally used is traditional syringe blood drawing, then transfers to blood taking tube and carry out the operations such as censorship; In recent years, vacuum tube single step is directly taken a blood sample and is become more advanced blood sampling means.Vacuum tube single step is directly taken a blood sample and is adopted the hemostix of two-head blood-taking needle, needle holder, vacuum test tube three external members.Existing needle holder mainly comprises the blood taking tube trocar sheath of blood taking needle Connection Block and hollow, and blood taking needle Connection Block is positioned at trocar sheath front end, and with trocar sheath integrative-structure, there is an opening trocar sheath rear end for accepting blood taking tube.After two-head blood-taking needle is installed and fixed, one end is positioned at the front end of needle holder, and for puncture, the other end is arranged in the trocar sheath of needle holder, coordinates blood sampling for being connected with vacuum test tube.After blood sampling, must both hands operate could be by the separating of needle holder and two-head blood-taking needle simultaneously, and blood taking needle is disposed, troublesome poeration, complexity, and also there is very large unsafe factor in exposed syringe needle.And if do not separate needle holder and blood taking needle, two external members are processed simultaneously, also can only disposable use the same with blood taking needle of needle holder so also improved blood sampling cost.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of structure rationally, loads and unloads easy to usely, simple to operate, and use procedure can effectively avoid stabbing medical worker and cleanup crew's safety blood taking needle needle holder.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of safety blood taking needle needle holder, it comprises trocar sheath, inner sleeve, it is characterized in that: described trocar sheath front end port center is connected with a blood taking needle Connection Block by connecting gusset, is axially arranged with the chute of an open rearward end on overcoat tube wall; Described inner sleeve is slidably installed in trocar sheath, is axially arranged with and the gathering sill of front opening that is connected the alternate cooperation of gusset on inner sleeve tube wall, and outer wall is provided with an outwardly slide block that can move along the chute of trocar sheath; In described chute, be provided with a location slot coordinating with slide block near open rearward end position, chute front portion is provided with a groove that is locked and fastened coordinating with slide block.
Described slide block is ladder type slide block, and its longitudinal cross-section is ladder type, and described location slot is dovetail groove, and its top is provided with taper and closes up, and ladder type slide block coordinates location to block slide block with trapezoidal location slot, realizes the integrated positioning assembling of trocar sheath and inner sleeve.
The described groove that is locked and fastened is provided with and check boss.The described groove both sides that are locked and fastened are provided with hollow hole, described in be locked and fastened two side and the check boss of groove radially outward protrude.
Described connection gusset is three, on inner sleeve tube wall, be axially arranged with three with the gathering sill of front opening that is connected the alternate cooperation of gusset.
Described trocar sheath rear end port is arranged with trocar sheath handle outward, locates slot top and be circumferentially with reinforcement on trocar sheath.
The outside of described inner sleeve slide block is also provided with a push pedal.
When the present invention assembles, inner sleeve inserts from the rear end of trocar sheath, slide block on its outer wall moves forward along runner rear end opening, slide block coordinates with the location slot of chute, be positioned to locate in slot, complete the assembling of trocar sheath and inner sleeve, now, inner sleeve is coated in isometric trocar sheath completely, what the front opening of the gathering sill on inner sleeve tube wall was just in time provided with trocar sheath front end port is connected the alternate cooperation of gusset, enforces slide block and can drive whole inner sleeve guiding movement forward.When use, two-head blood-taking needle is mounted on blood taking needle Connection Block, and puncture needle is positioned at the front end of needle holder, and for puncture, the other end is arranged in the inner sleeve of needle holder, coordinates blood sampling for being connected with vacuum test tube.After blood sampling, firmly promote forward the slide block of inner sleeve, it overcomes the resistance that location slot upper taper closes up, and whole inner sleeve moves along chute, until slide block coordinates locking with the groove that is locked and fastened of chute front portion, can not retreat.Now, the puncture needle of the completely coated blood taking needle Connection Block of inner sleeve front portion, does not expose it.Against existing technologies, the present invention constructs rationally, loads and unloads easy to usely, simple to operate, and use procedure can effectively avoid blood taking needle to stab medical worker and cleanup crew, thereby avoids being caused cross infection by accidental needle sticks, and safety is good.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is that the present invention forms structural representation.
Fig. 2 is the structural representation of trocar sheath of the present invention.
Fig. 3 is the Facad structure schematic diagram of trocar sheath of the present invention.
Fig. 4 is the structural representation of inner sleeve of the present invention.
Fig. 5 is the location assembled state schematic diagram of inner sleeve of the present invention and trocar sheath.
Fig. 6 is the generalized section of assembling blood taking needle in Fig. 5.
Fig. 7 is inner sleeve and trocar sheath location engaging schematic diagram in Fig. 5.
Fig. 8 is that the present invention uses rear locking guard mode generalized section.
Fig. 9 is that the present invention uses rear inner sleeve and trocar sheath locking schematic diagram.
1. trocar sheaths in figure, 2. inner sleeve, 3. blood taking needle, 11. chutes, 12. blood taking needle Connection Blocks, 13. connect gusset, 14. trocar sheath handles, 15. reinforcements, 21. gathering sills, 22. slide blocks, 23. push pedals; 111. location slots, 112. grooves that are locked and fastened, 113. hollow holes, 114. check boss.
The specific embodiment
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, can find out, a kind of safety blood taking needle needle holder of the present invention, it comprises trocar sheath 1, inner sleeve 2.The length of trocar sheath 1, inner sleeve 2 is identical, and the external diameter of inner sleeve 2 is consistent with the internal diameter of trocar sheath 1.Trocar sheath 1, inner sleeve 2 one central through holes.Described inner sleeve 2 is slidably installed in trocar sheath 1, and the central through hole of inner sleeve 2 can insert vacuum test tube, and two-head blood-taking needle assembly connection.
From Fig. 2, Fig. 3, it can also be seen that, described trocar sheath 1 front end port center is connected with a blood taking needle Connection Block 12 by connecting gusset 13.On trocar sheath 1 wall, be axially arranged with the chute 11 of an open rearward end.In described chute 11, be provided with a location slot 111 coordinating with slide block near open rearward end position, chute front portion is provided with a groove 112 that is locked and fastened coordinating with slide block.
From Fig. 4, it can also be seen that, described inner sleeve 2 is slidably installed in trocar sheath 1, on inner sleeve 2 walls, be axially arranged with and the gathering sill 21 of front opening that is connected gusset 13 alternate cooperations, outer wall is provided with an outwardly slide block 22 that can move along the chute of trocar sheath 11.
From Fig. 2, Fig. 3, Fig. 4, it can also be seen that, in described chute 11, be provided with a location slot 111 coordinating with slide block 22 near open rearward end position, chute front portion is provided with a groove 112 that is locked and fastened coordinating with slide block.Described slide block 22 is ladder type slide block, its longitudinal cross-section is ladder type, and described location slot 111 is dovetail groove, and its top is provided with taper and closes up, ladder type slide block coordinates location to block slide block with trapezoidal location slot, realize the integrated positioning assembling of trocar sheath 1 and inner sleeve 2.
The described groove 112 that is locked and fastened is provided with and check boss 114.Described groove 112 both sides that are locked and fastened are provided with hollow hole 113, described in be locked and fastened two side and the check boss 114 of groove radially outward protrude.
Described connection gusset 13 is three, on inner sleeve 1 wall, be axially arranged with three with the gathering sill 21 of front opening that is connected gusset 13 alternate cooperations.
Described trocar sheath 1 rear end port is arranged with trocar sheath handle 14 outward, locates slot 111 tops and be circumferentially with reinforcement 15 on trocar sheath 1.
The outside of described inner sleeve slide block 22 is also provided with a push pedal 23.The movement of handled easily inner sleeve 2.
When the present invention assembles, inner sleeve 2 inserts from the rear end of trocar sheath 1, slide block 22 on its outer wall moves forward along chute 11 open rearward end, slide block 22 coordinates location to block slide block with the location slot 111 of chute 11, be positioned to locate in slot, realize the integrated positioning assembling of trocar sheath 1 and inner sleeve 2.As shown in Fig. 5, Fig. 6, Fig. 7.Now, inner sleeve 2 is coated in isometric trocar sheath 1 completely, and what the front opening of the gathering sill 21 on inner sleeve tube wall was just in time provided with trocar sheath front end port is connected the alternate cooperation of gusset 13, enforces slide block and can drive whole inner sleeve guiding movement forward.When use, two-head blood-taking needle 3 is mounted on blood taking needle Connection Block 12, and puncture needle is positioned at the front end of needle holder, and for puncture, the other end is arranged in the inner sleeve 2 of needle holder, coordinates blood sampling for being connected with vacuum test tube.After blood sampling, firmly promote forward the slide block 22 of inner sleeve 2, it overcomes the resistance that location slot 111 upper taper close up, whole inner sleeve 2 moves along chute 11, until slide block 22 coordinates locking with the groove 112 that is locked and fastened of chute 11 front portions, the check boss 114 of the locked slot 112 of slide block 22 locks, and can not retreat.As shown in Figure 8, Figure 9.Now, the puncture needle 3 of completely coated blood taking needle Connection Block 12 front ends of inner sleeve 2, does not expose it.Use procedure can effectively avoid blood taking needle to stab medical worker and cleanup crew, thereby avoids being caused cross infection by accidental needle sticks, and safety is good.
Claims (7)
1. a safety blood taking needle needle holder, it comprises trocar sheath, inner sleeve, it is characterized in that: described trocar sheath front end port center is connected with a blood taking needle Connection Block by connecting gusset, is axially arranged with the chute of an open rearward end on overcoat tube wall; Described inner sleeve is slidably installed in trocar sheath, is axially arranged with and the gathering sill of front opening that is connected the alternate cooperation of gusset on inner sleeve tube wall, and outer wall is provided with an outwardly slide block that can move along the chute of trocar sheath; In described chute, be provided with a location slot coordinating with slide block near open rearward end position, chute front portion is provided with a groove that is locked and fastened coordinating with slide block.
2. safety blood taking needle needle holder according to claim 1, it is characterized in that: described slide block is ladder type slide block, its longitudinal cross-section is ladder type, described location slot is dovetail groove, its top is provided with taper and closes up, ladder type slide block coordinates location to block slide block with trapezoidal location slot, realize the integrated positioning assembling of trocar sheath and inner sleeve.
3. safety blood taking needle needle holder according to claim 1, is characterized in that: described in the groove that is locked and fastened be provided with and check boss.
4. safety blood taking needle needle holder according to claim 3, is characterized in that: described in the groove both sides that are locked and fastened be provided with hollow hole, described in be locked and fastened two side and the check boss of groove radially outward protrude.
5. safety blood taking needle needle holder according to claim 1, is characterized in that: described connection gusset is three, on inner sleeve tube wall, be axially arranged with three with the gathering sill of front opening that is connected the alternate cooperation of gusset.
6. safety blood taking needle needle holder according to claim 1, is characterized in that: described trocar sheath rear end port is arranged with trocar sheath handle outward, locates slot top and be circumferentially with reinforcement on trocar sheath.
7. safety blood taking needle needle holder according to claim 1, is characterized in that: the outside of described inner sleeve slide block is also provided with a push pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103898.5A CN103815919B (en) | 2014-03-20 | 2014-03-20 | Safety blood taking needle needle holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410103898.5A CN103815919B (en) | 2014-03-20 | 2014-03-20 | Safety blood taking needle needle holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103815919A true CN103815919A (en) | 2014-05-28 |
| CN103815919B CN103815919B (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410103898.5A Active CN103815919B (en) | 2014-03-20 | 2014-03-20 | Safety blood taking needle needle holder |
Country Status (1)
| Country | Link |
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| CN (1) | CN103815919B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742494A (en) * | 2018-05-03 | 2018-11-06 | 何勇 | A kind of visualization anal intestine mirror |
| CN113229817A (en) * | 2021-05-17 | 2021-08-10 | 北京普诺恒科技有限公司 | Blood taking needle holder |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895633A (en) * | 1973-09-27 | 1975-07-22 | Survival Technology | Large capacity syringe |
| US5211628A (en) * | 1991-09-30 | 1993-05-18 | Marshall John M | Syringe with automatic retracting needle |
| WO1995019195A1 (en) * | 1994-01-12 | 1995-07-20 | Debiotech S.A. | Cartridge unit for the distribution of a liquid |
| CN1621101A (en) * | 2003-11-25 | 2005-06-01 | 许明正 | Medical appliances |
| CN101049524A (en) * | 2007-05-10 | 2007-10-10 | 魏川人 | Safe self-destruction type transfusion needle and blood taking needle |
| CN102512182A (en) * | 2011-12-31 | 2012-06-27 | 山东新华安得医疗用品有限公司 | Safe needle holder for blood taking needle |
| CN102525488A (en) * | 2011-12-01 | 2012-07-04 | 上海金塔医用器材有限公司 | Disposable sterile retraction safety blood sampling needle |
| CN202497156U (en) * | 2012-01-17 | 2012-10-24 | 张亚平 | Safe vein blood sampling system with self-locking apparatus |
| CN202654134U (en) * | 2011-12-26 | 2013-01-09 | 天津华鸿科技有限公司 | Bottom cover of blood taking needle |
| CN203749426U (en) * | 2014-03-20 | 2014-08-06 | 威海鸿宇医疗器械有限公司 | Safety-typed blood taking needle holder |
-
2014
- 2014-03-20 CN CN201410103898.5A patent/CN103815919B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895633A (en) * | 1973-09-27 | 1975-07-22 | Survival Technology | Large capacity syringe |
| US5211628A (en) * | 1991-09-30 | 1993-05-18 | Marshall John M | Syringe with automatic retracting needle |
| WO1995019195A1 (en) * | 1994-01-12 | 1995-07-20 | Debiotech S.A. | Cartridge unit for the distribution of a liquid |
| CN1621101A (en) * | 2003-11-25 | 2005-06-01 | 许明正 | Medical appliances |
| CN101049524A (en) * | 2007-05-10 | 2007-10-10 | 魏川人 | Safe self-destruction type transfusion needle and blood taking needle |
| CN102525488A (en) * | 2011-12-01 | 2012-07-04 | 上海金塔医用器材有限公司 | Disposable sterile retraction safety blood sampling needle |
| CN202654134U (en) * | 2011-12-26 | 2013-01-09 | 天津华鸿科技有限公司 | Bottom cover of blood taking needle |
| CN102512182A (en) * | 2011-12-31 | 2012-06-27 | 山东新华安得医疗用品有限公司 | Safe needle holder for blood taking needle |
| CN202497156U (en) * | 2012-01-17 | 2012-10-24 | 张亚平 | Safe vein blood sampling system with self-locking apparatus |
| CN203749426U (en) * | 2014-03-20 | 2014-08-06 | 威海鸿宇医疗器械有限公司 | Safety-typed blood taking needle holder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742494A (en) * | 2018-05-03 | 2018-11-06 | 何勇 | A kind of visualization anal intestine mirror |
| CN113229817A (en) * | 2021-05-17 | 2021-08-10 | 北京普诺恒科技有限公司 | Blood taking needle holder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103815919B (en) | 2015-12-30 |
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