CN103815919B - Safety blood taking needle needle holder - Google Patents
Safety blood taking needle needle holder Download PDFInfo
- Publication number
- CN103815919B CN103815919B CN201410103898.5A CN201410103898A CN103815919B CN 103815919 B CN103815919 B CN 103815919B CN 201410103898 A CN201410103898 A CN 201410103898A CN 103815919 B CN103815919 B CN 103815919B
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- China
- Prior art keywords
- trocar sheath
- slide block
- inner sleeve
- chute
- blood taking
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Abstract
The present invention relates to a kind of safety blood taking needle needle holder, it comprises trocar sheath, inner sleeve, and described trocar sheath front-end port center is connected with a blood taking needle Connection Block by connecting gusset, overcoat tube wall is axially arranged with the chute of an open rearward end; Described inner sleeve is slidably installed in trocar sheath, inner sleeve tube wall is axially arranged with the gathering sill with the front opening being connected the alternate cooperation of gusset, outer wall be provided with one outwardly can along the slide block of the chute movement of trocar sheath; Be provided with a location slot coordinated with slide block near open rearward end position in described chute, chute front portion is provided with a groove that is locked and fastened coordinated with slide block.The present invention constructs rationally, loads and unloads easy to use, simple to operate, and use procedure can effectively avoid blood taking needle to stab medical worker and cleanup crew, thus avoids being caused cross infection by accidental needle sticks, and safety is good.
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.Past generally uses the blood drawing of traditional syringe, 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 the blood sampling means becoming more advanced.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 member.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 being separated needle holder and two-head blood-taking needle simultaneously, and being disposed by blood taking needle, troublesome poeration, complexity, also there is very large unsafe factor in exposed syringe needle.And if be not separated needle holder and blood taking needle, two external members process simultaneously, and needle holder is also the same with blood taking needle can only single use, which also improves blood sampling cost.
Summary of the invention
Technical problem to be solved by this invention overcomes above-mentioned the deficiencies in the prior art, and provide a kind of structure rationally, load and unload easy to use, simple to operate, use procedure effectively can avoid the safety blood taking needle needle holder of stabbing medical worker and cleanup crew.
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, overcoat tube wall is axially arranged with the chute of an open rearward end; Described inner sleeve is slidably installed in trocar sheath, inner sleeve tube wall is axially arranged with the gathering sill with the front opening being connected the alternate cooperation of gusset, outer wall be provided with one outwardly can along the slide block of the chute movement of trocar sheath; Be provided with a location slot coordinated with slide block near open rearward end position in described chute, chute front portion is provided with a groove that is locked and fastened coordinated 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 engages slot fit and locates with trapezoidal location and block slide block, and the integrated positioning realizing trocar sheath and inner sleeve assembles.
The described groove that is locked and fastened is provided with check boss.The described groove both sides that are locked and fastened are provided with hollow hole, described in the be locked and fastened two side of groove and check boss radially outward protrude.
Described connection gusset is three, inner sleeve tube wall is axially arranged with three with the gathering sill of front opening being connected the alternate cooperation of gusset.
Be arranged with trocar sheath handle outside described trocar sheath back-end ports, trocar sheath located slot top and be circumferentially with reinforcement.
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 engages slot fit with the location of chute, be positioned in the slot of location, complete the assembling of trocar sheath and inner sleeve, now, inner sleeve is coated in isometric trocar sheath completely, the connection gusset that the front opening of the gathering sill on inner sleeve tube wall is just in time provided with trocar sheath front-end port is alternate to be coordinated, and enforces slide block and can drive whole inner sleeve guiding movement forward.During 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, the firmly slide block of driven forward inner sleeve, it overcomes the resistance that location slot upper taper closes up, and whole inner sleeve moves along chute, until the slot fit that is locked and fastened of slide block and chute front portion locks, can not retreat.Now, the puncture needle of the complete coated blood taking needle Connection Block front portion of inner sleeve, makes it not expose.Against existing technologies, the present invention constructs rationally, loads and unloads easy to use, simple to operate, and use procedure can effectively avoid blood taking needle to stab medical worker and cleanup crew, thus 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 bit combination view 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, 2. inner sleeve, 3. blood taking needle in figure, 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. are locked and fastened groove, 113. hollow holes, 114. check boss.
Detailed description of the invention
As can be seen from Fig. 1, Fig. 2, Fig. 3, Fig. 4, 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 hole.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.
It can also be seen that from Fig. 2, Fig. 3, described trocar sheath 1 front-end port center is connected with a blood taking needle Connection Block 12 by connecting gusset 13.Trocar sheath 1 wall is axially arranged with the chute 11 of an open rearward end.Be provided with a location slot 111 coordinated with slide block near open rearward end position in described chute 11, chute front portion is provided with a groove 112 that is locked and fastened coordinated with slide block.
It can also be seen that from Fig. 4, described inner sleeve 2 is slidably installed in trocar sheath 1, inner sleeve 2 wall is axially arranged with the gathering sill 21 with the front opening being connected the alternate cooperation of gusset 13, outer wall be provided with one outwardly can along the slide block 22 of chute 11 movement of trocar sheath.
It can also be seen that from Fig. 2, Fig. 3, Fig. 4, be provided with a location slot 111 coordinated with slide block 22 in described chute 11 near open rearward end position, chute front portion is provided with a groove 112 that is locked and fastened coordinated 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 engages slot fit and locates with trapezoidal location and block slide block, realizes the integrated positioning assembling of trocar sheath 1 and inner sleeve 2.
The described groove 112 that is locked and fastened is provided with check boss 114.Described groove 112 both sides that are locked and fastened are provided with hollow hole 113, described in the be locked and fastened two side of groove and check boss 114 radially outward protrude.
Described connection gusset 13 is three, inner sleeve 1 wall is axially arranged with three with the gathering sill 21 of front opening being connected the alternate cooperation of gusset 13.
Be arranged with trocar sheath handle 14 outside described trocar sheath 1 back-end ports, trocar sheath 1 located slot 111 top and be circumferentially with reinforcement 15.
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 in the slot of location, 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 the connection gusset 13 that the front opening of the gathering sill 21 on inner sleeve tube wall is just in time provided with trocar sheath front-end port is alternate to be coordinated, and enforces slide block and can drive whole inner sleeve guiding movement forward.During 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, the firmly slide block 22 of driven forward inner sleeve 2, it overcomes the resistance that location slot 111 upper taper closes up, whole inner sleeve 2 moves along chute 11, lock until slide block 22 coordinates with the groove 112 that is locked and fastened of chute 11 front portion, the check boss 114 that slide block 22 is locked slot 112 locks, and can not retreat.As shown in Figure 8, Figure 9.Now, the puncture needle 3 of complete coated blood taking needle Connection Block 12 front end of inner sleeve 2, makes it not expose.Use procedure can effectively avoid blood taking needle to stab medical worker and cleanup crew, thus avoids being caused cross infection by accidental needle sticks, and safety is good.
Claims (1)
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, overcoat tube wall is axially arranged with the chute of an open rearward end; Described inner sleeve is slidably installed in trocar sheath, inner sleeve tube wall is axially arranged with the gathering sill with the front opening being connected the alternate cooperation of gusset, outer wall be provided with one outwardly can along the slide block of the chute movement of trocar sheath; Be provided with a location slot coordinated with slide block near open rearward end position in described chute, chute front portion is provided with a groove that is locked and fastened coordinated 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 engages slot fit and locates with trapezoidal location and block slide block, and the integrated positioning realizing trocar sheath and inner sleeve assembles; The described groove that is locked and fastened is provided with check boss; The described groove both sides that are locked and fastened are provided with hollow hole, described in the be locked and fastened two side of groove and check boss radially outward protrude; Described connection gusset is three, inner sleeve tube wall is axially arranged with three with the gathering sill of front opening being connected the alternate cooperation of gusset; Be arranged with trocar sheath handle outside described trocar sheath back-end ports, trocar sheath located slot top and be circumferentially with reinforcement; 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 CN103815919A (en) | 2014-05-28 |
| CN103815919B true CN103815919B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410103898.5A Active CN103815919B (en) | 2014-03-20 | 2014-03-20 | Safety blood taking needle needle holder |
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| Country | Link |
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| CN (1) | CN103815919B (en) |
Families Citing this family (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 |
| CN113229817B (en) * | 2021-05-17 | 2022-08-30 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103815919A (en) | 2014-05-28 |
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