CN104857599B - Safety operating device for injector - Google Patents
Safety operating device for injector Download PDFInfo
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- CN104857599B CN104857599B CN201510190250.0A CN201510190250A CN104857599B CN 104857599 B CN104857599 B CN 104857599B CN 201510190250 A CN201510190250 A CN 201510190250A CN 104857599 B CN104857599 B CN 104857599B
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- baffle
- round
- head
- double
- injector
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Abstract
The invention discloses a safe operation device of an injector, which comprises the injector, an injector sheath, a spring, an outer hexagon nut, a first baffle, a second baffle, a guide pin, a third baffle, a fourth baffle, a fifth baffle and a limiting pin, wherein the guide pin is sequentially connected with the first baffle, the second baffle, the third baffle, the fourth baffle and the fifth baffle, the first baffle and the second baffle are rigidly connected together, the third baffle, the fourth baffle and the fifth baffle are sequentially fixed along the axial direction of the guide pin, the spring sequentially passes through pore passages on the second baffle, the third baffle and the fourth baffle, one end of the spring is pressed on the second baffle, the other end of the spring is pressed on the fifth baffle, one end of the guide pin is in threaded connection with the fifth baffle, the other end of the guide pin is in threaded connection with the outer hexagon nut, the first baffle is pressed on the outer hexagon nut under the action of the spring, and the limiting pin is fixed below the second baffle. The invention has simple operation and safe use, and is a device integrating the extraction and the return of the sheath of the injector.
Description
Technical Field
The present invention relates to a syringe operating device, and more particularly, to a syringe safety operating device.
Background
The injector is an important device for injection administration, and requires a clean and clean injection environment when injection administration is performed. In operating a sterile syringe, it is desirable to maintain sterility of the tip of the syringe needle, the needle stem, the interior wall of the pintle, and the nipple of the barrel. However, since the sheath and the needle portion of the syringe are normally interference fit together, there is a relatively high friction between the sheath and the needle connection, so that a caregiver must expend a relatively high amount of force to remove the sheath when removing the sheath from the syringe. At this time, under the action of a large pulling force, the sheath and the needle part of the syringe may be separated suddenly, so that nursing operators are very easy to prick themselves under the condition of no reaction in time, and occupational exposure is easily caused.
Disclosure of Invention
The invention aims to provide a safe operation device of a syringe, which is simple to operate and safe to use, and is equipment integrating syringe sheath picking and sheath returning.
The technical scheme adopted by the invention is as follows:
the invention relates to a safe operation device of an injector, which comprises an injector, an injector sheath, a spring, an outer hexagon nut, a first baffle, a second baffle, a guide pin, a third baffle, a fourth baffle, a fifth baffle and a limiting pin, wherein the guide pin is sequentially connected with the first baffle, the second baffle, the third baffle, the fourth baffle and the fifth baffle; the diameter of the shoulder at the end part of the syringe needle is larger than the groove width of the double-round-head groove of the second baffle plate and smaller than the diameter of the round-head hole I of the double-round-head groove of the second baffle plate; the diameter of the shoulder of the injector sheath is larger than the groove width of the double-round-head groove of the third baffle plate and the fourth baffle plate and smaller than the diameter of the round-head hole I of the double-round-head groove of the third baffle plate.
The distance between the two opposite planes of the third baffle and the fourth baffle is 2mm.
Wherein, the limiting pin is inserted in the spring.
The groove width of the double-round-head groove of the first baffle is equal to the diameter of the round-head hole I of the double-round-head groove of the second baffle and the diameter of the round-head hole I of the double-round-head groove of the third baffle.
Wherein, one side of the third baffle plate is provided with two cylindrical end surfaces which are rigidly connected with the fourth baffle plate.
Wherein, the first round-head hole of the double round-head groove of the second baffle plate is aligned with the center of the round-head Kong Yitong of the double round-head groove of the third baffle plate.
The invention has the beneficial effects that:
when the syringe sheath is taken, the needle head of the syringe is inserted into the large hole of the baffle, the first baffle and the second baffle move towards the direction of the fifth baffle under the thrust action of the syringe, and when the limiting pin on the second baffle is propped against the fifth baffle, the first baffle and the second baffle move to the target positions, and at the moment, the second baffle and the third baffle are pushed to be positioned between the shoulder at the end part of the syringe sheath and the shoulder at the end part of the needle head. Then, the injector slides from the big hole end to the small hole end of the round head groove of the baffle, the thrust force of the second baffle and the third baffle in different directions is generated by the spring, the needle head of the injector and the sheath bear the acting force in opposite directions, the sheath is separated from the needle head, the compressed spring always has acting force in the back-off process of the injector, and the second baffle prevents the needle head from falling off from the nipple of the injector in the sheath picking process under the action of the spring pressure.
When the syringe sheath is sleeved, the syringe is only required to be disassembled into the small holes of the baffle plates, the first baffle plate and the second baffle plate move towards the direction of the fifth baffle plate under the thrust action of the syringe, and when the syringe needle is inserted into the sheath and continuously moves towards the direction of the fifth baffle plate, the fourth baffle plate with fixed position clamps the shoulder of the opening end of the sheath, so that the syringe needle is tightly inserted into the sheath. At this time, the injector is moved from the small hole end to the large hole end of the round head groove of the baffle to be directly pulled out, so that the sheath is retracted.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the jacket extraction of the present invention.
Fig. 3 is a schematic view of a jacket return of the present invention.
Fig. 4 is a block diagram of a first baffle of the present invention.
Fig. 5 is a structural view of a second baffle plate of the present invention.
Fig. 6 is a structural view of a third baffle plate of the present invention.
Fig. 7 is a structural view of a fourth baffle plate of the present invention.
Fig. 8 is a structural view of a fifth baffle plate of the present invention.
In the figure: 1. the injector comprises an injector, 2, a spring, 3, an outer hexagon nut, 4, a first baffle, 5, a second baffle, 6, a limiting pin, 7, a third baffle, 8, a fourth baffle, 9, a fifth baffle, 10, a first baffle double-round-head groove, 11, a second baffle double-round-head groove, 12, a third baffle double-round-head groove, 13, a fourth baffle double-round-head groove, 14, a fifth baffle double-round-head groove, 15, a second baffle double-round-head groove round-head hole I, 16, a second baffle double-round-head groove round-head hole II, 17, a second baffle double-round-head groove guide groove, 18, a third baffle double-round-head groove round-head hole I, 19, a third baffle double-round-head groove round-head hole II, 20, a third baffle double-round-head groove guide groove, 21, a shoulder of the end of the injector needle, 22 and a shoulder of the injector sheath.
Detailed Description
The invention is further described below with reference to the drawings and examples.
1-8, the safety operation device for the injector comprises the injector, an injector sheath, a spring, an outer hexagon nut, a first baffle, a second baffle, a guide pin, a third baffle, a fourth baffle, a fifth baffle and a limiting pin, wherein the guide pin is sequentially connected with the first baffle, the second baffle, the third baffle, the fourth baffle and the fifth baffle, the first baffle and the second baffle are rigidly connected together and can slide along the axial direction of the guide pin, the third baffle, the fourth baffle and the fifth baffle are sequentially fixed along the axial direction of the guide pin, the spring sequentially passes through pore canals on the second baffle, the third baffle and the fourth baffle, one end of the spring is pressed on the second baffle, the other end of the spring is pressed on the fifth baffle, one end of the guide pin is in threaded connection with the fifth baffle, the other end of the guide pin is in threaded connection with the outer hexagon nut, the first baffle is pressed on the outer hexagon nut under the action of the spring, the limiting pin is fixed below the second baffle, the first baffle is provided with a double-round-head groove with the same size of which is provided with the two round-head grooves with the same size, the second baffle is provided with the double-head round-head grooves with the same size, and the fourth baffle is provided with the double-head round-head grooves with the same size; the diameter of the shoulder at the end part of the syringe needle is larger than the groove width of the double-round-head groove of the second baffle plate and smaller than the diameter of the round-head hole I of the double-round-head groove of the second baffle plate; the diameter of the shoulder of the injector sheath is larger than the groove width of the double-round-head groove of the third baffle plate and the fourth baffle plate and smaller than the diameter of the round-head hole I of the double-round-head groove of the third baffle plate.
The second baffle double-round-head groove comprises a first round-head hole of the second baffle double-round-head groove, a second round-head hole of the second baffle double-round-head groove and a second double-round-head groove guide groove of the second baffle; the third baffle double-round-head groove comprises a first third baffle double-round-head groove round-head hole, a second third baffle double-round-head groove round-head hole and a third baffle double-round-head groove guide groove.
The distance between the two opposite planes of the third baffle and the fourth baffle is 2mm.
The limiting pin is inserted into the spring.
The groove width of the double-round-head groove of the first baffle is equal to the diameter of the round-head hole I of the double-round-head groove of the second baffle and the diameter of the round-head hole I of the double-round-head groove of the third baffle.
And two cylindrical end surfaces are arranged on one side of the third baffle plate and are rigidly connected with the fourth baffle plate.
The first round head hole of the double round head groove of the second baffle is aligned with the center of the round head Kong Yitong of the double round head groove of the third baffle.
As shown in fig. 2, in the invention, when the syringe jacket is taken out, the needle part of the syringe 1 is inserted from the big hole of the second baffle plate 5, the first baffle plate 4 and the second baffle plate 5 move towards the fifth baffle plate 9 under the thrust action of the syringe 1, when the limiting pin on the second baffle plate 5 is propped against the fifth baffle plate 9, the first baffle plate 4 and the second baffle plate 5 move to the target positions, and at the moment, the second baffle plate 5 and the third baffle plate 7 are pushed between the shoulder at the end part of the syringe 1 jacket and the shoulder at the end part of the needle of the syringe 1; then, the injector 1 is slipped from one end of the round head hole of the double round head groove of the second baffle to two ends of the round head hole of the double round head groove of the second baffle, and as the shoulder at the end part of the injector sheath is clamped between the third baffle and the fourth baffle, the thrust force in different directions generated by the second baffle 5 and the third baffle 7 is utilized by the spring 2, so that the needle head of the injector 1 bears the acting force in opposite directions with the injector 1 sheath, the compressed spring 2 always has the acting force in the retracting process of the injector 1 in the process of separating the injector 1 sheath from the needle head, and the second baffle 5 prevents the needle head from falling off from the nipple of the injector in the sheath picking process under the pressure action of the spring 2
As shown in fig. 3, in the invention, when the sheath is sleeved, the injector 1 is inserted into the round-head hole II of the double round-head groove of the second baffle, the first baffle 4 and the second baffle 5 move towards the fifth baffle 9 under the thrust of the injector 1, and when the needle head of the injector 1 is inserted into the sheath and moves towards the fifth baffle 9, the fourth baffle 8 with fixed position clamps the shoulder of the sheath of the injector, so that the needle head of the injector 1 is tightly inserted into the sheath. At this time, the injector 1 is moved from the two ends of the round head hole of the double round head groove of the second baffle to one end of the round head hole of the double round head groove of the second baffle to be directly pulled out, so that the sheath is retracted.
As shown in fig. 4, the first baffle 4 is provided with a round-head groove with the same aperture size at both ends.
As shown in fig. 5, the second baffle 5 is provided with a round-head groove with different pore sizes at two ends, wherein the diameter of the round-head hole of the double round-head grooves of the second baffle is the same as that of the round-head groove of the first baffle 4, and 2 limiting pins are fixed at one side of the second baffle.
As shown in fig. 6, the third baffle 7 is provided with round-head grooves with different pore sizes at two ends, wherein the round-head groove of the third baffle has the same size as the round-head groove of the second baffle.
As shown in fig. 7, the fourth baffle plate 8 is provided with a circular head groove with the same pore size, wherein the pore size of the circular head groove is the same as that of the circular head groove of the second baffle plate 5.
As shown in fig. 8, the fifth baffle 9 is provided with a round-head groove with the same pore size at two ends, wherein the pore size of the round-head groove of the fifth baffle is the same as that of the round-head hole two of the double round-head groove of the second baffle. When the sheath of the injector 1 is taken off, the fourth baffle 8 and the fifth baffle 9 clamp the sheath of the injector 1 in the round head groove.
Claims (6)
1. A safe operation device of a syringe, comprising a syringe (1) and a syringe sheath, and is characterized in that: the novel high-strength steel plate structure further comprises a spring (2), an outer hexagon nut (3), a first baffle (4), a second baffle (5), a guide pin (6), a third baffle (7), a fourth baffle (8), a fifth baffle (9) and a limiting pin, wherein the guide pin (6) is sequentially connected with the first baffle (4), the second baffle (5), the third baffle (7), the fourth baffle (8) and the fifth baffle (9), the first baffle (4) and the second baffle (5) are rigidly connected together and can slide along the axial direction of the guide pin (6), the third baffle (7), the fourth baffle (8) and the fifth baffle (9) are sequentially fixed along the axial direction of the guide pin (6), the spring (2) sequentially passes through the pore canal on the second baffle (5), the third baffle (7) and the fourth baffle (8), one end of the spring (2) is pressed on the second baffle (5), the other end is pressed on the fifth baffle (9), one end of the guide pin (6) is in threaded connection with the fifth baffle (9), the other end of the guide pin is in threaded connection with the outer hexagonal nut (3), the first baffle (4) is pressed on the outer hexagonal nut (3) under the action of the spring (2), the limiting pin is fixed below the second baffle (5), the first baffle (4) is provided with a double-round-head groove with the same size as the round heads at the two ends, the second baffle (5) is provided with double-round-head grooves with round-head sizes different at two ends, the third baffle (7) is provided with double-round-head grooves with round-head sizes different, the fourth baffle (8) is provided with double-round-head grooves with round-head sizes identical, and the fifth baffle (9) is provided with double-round-head grooves with round-head sizes identical; the diameter of the shoulder at the end part of the needle head of the injector (1) is larger than the groove width of the double-round-head groove of the second baffle (5) and smaller than the diameter of the round-head hole I of the double-round-head groove of the second baffle (5); the diameter of the shoulder of the sheath of the injector (1) is larger than the groove width of the double-round-head grooves of the third baffle (7) and the fourth baffle (8) and smaller than the diameter of the round-head hole I of the double-round-head groove of the third baffle (7);
when the syringe sheath is taken out, the needle head part of the syringe is inserted from the large hole of the second baffle, the first baffle and the second baffle move towards the direction of the fifth baffle under the thrust action of the syringe, and when the limiting pin on the second baffle is propped against the fifth baffle, the first baffle and the second baffle move to the target position, and at the moment, the second baffle and the third baffle are pushed between the shoulder at the end part of the syringe sheath and the shoulder at the end part of the syringe needle; then, the injector is slipped from one end of the round head hole of the double round head groove of the second baffle to two ends of the round head hole of the double round head groove of the second baffle, and as the shoulder at the end part of the injector sheath is clamped between the third baffle and the fourth baffle, the thrust in different directions generated by the second baffle and the third baffle is generated by the spring, so that the injector needle and the injector sheath bear the acting force in opposite directions, the injector sheath is separated from the needle, the compressed spring always has acting force in the backspacing process of the injector, and the second baffle prevents the needle from falling from the nipple of the injector in the sheath picking process under the action of the spring pressure.
2. A safety operating device for a syringe according to claim 1, wherein: the distance between the opposite planes of the third baffle (7) and the fourth baffle (8) is 2mm.
3. A safety operating device for a syringe according to claim 1, wherein: the limiting pin is inserted into the spring (2).
4. A safety operating device for a syringe according to claim 1, wherein: the groove width of the double-round-head groove of the first baffle plate (4) is equal to the diameter of the round-head hole I of the double-round-head groove of the second baffle plate and the diameter of the round-head hole I of the double-round-head groove of the third baffle plate.
5. A safety operating device for a syringe according to claim 1, wherein: two cylindrical end surfaces are arranged on one side of the third baffle (7) and rigidly connected with the fourth baffle (8).
6. A safety operating device for a syringe according to claim 1, wherein: the first round head hole of the double round head groove of the second baffle plate (5) is aligned with the center of the round head Kong Yitong of the double round head groove of the third baffle plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190250.0A CN104857599B (en) | 2015-04-21 | 2015-04-21 | Safety operating device for injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190250.0A CN104857599B (en) | 2015-04-21 | 2015-04-21 | Safety operating device for injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104857599A CN104857599A (en) | 2015-08-26 |
| CN104857599B true CN104857599B (en) | 2023-06-13 |
Family
ID=53904045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510190250.0A Active CN104857599B (en) | 2015-04-21 | 2015-04-21 | Safety operating device for injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104857599B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3865591D1 (en) * | 1987-07-31 | 1991-11-21 | Nissho Kk | INJECTION NEEDLE DUCTING DEVICE AND CONTAINER WITH THIS DEVICE. |
| JPH09192180A (en) * | 1996-01-18 | 1997-07-29 | Heisei Denshi Kk | Syringe needle extractor |
| JP2990213B1 (en) * | 1998-07-08 | 1999-12-13 | 有限会社医療化学 | Injection needle removal tool |
| CN201855481U (en) * | 2010-09-30 | 2011-06-08 | 张新华 | Needle cap removing device of injector |
| CN202459647U (en) * | 2012-01-18 | 2012-10-03 | 河南科技大学第一附属医院 | Needle head capping device |
| CN103691038B (en) * | 2013-12-31 | 2016-04-20 | 苏州大学 | Multifunctional needle-syringe separator |
| CN204723519U (en) * | 2015-04-21 | 2015-10-28 | 湖南中医药大学 | A kind of syringe safe operating means |
-
2015
- 2015-04-21 CN CN201510190250.0A patent/CN104857599B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104857599A (en) | 2015-08-26 |
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