CN219251231U - Disposable self-destruction type safety propeller - Google Patents
Disposable self-destruction type safety propeller Download PDFInfo
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- CN219251231U CN219251231U CN202320012822.6U CN202320012822U CN219251231U CN 219251231 U CN219251231 U CN 219251231U CN 202320012822 U CN202320012822 U CN 202320012822U CN 219251231 U CN219251231 U CN 219251231U
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- needle
- core rod
- injection tube
- needle seat
- disposable self
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Abstract
The utility model discloses a disposable self-destruction type safety propeller which comprises an injection tube, a needle head, a needle seat sleeve, a needle seat, a core bar and a clamping piece, wherein the needle seat sleeve is detachably and fixedly arranged at one end of the injection tube; the needle seat is detachably and fixedly arranged in the needle seat sleeve, one end of the needle is fixedly embedded in the needle seat, and the other end of the needle penetrates through the top of the needle seat sleeve; the core rod is movably arranged in the injection tube, the end part of the core rod is sleeved with a rubber piston, and the rubber piston is in sliding fit with the inner wall of the injection tube; the clamping piece is arranged between the needle seat and the core rod, and can clamp and connect the core rod and the needle seat together; the disposable self-destruction type safety propeller can recycle the needle into the injection tube, so that a sleeve needle cap is not required to be returned, and the needle is fundamentally prevented from being exposed.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a disposable self-destruction type safety propeller.
Background
The syringe (propeller) is a common medical instrument in the medical field, in order to avoid virus cross infection caused by repeated use of the syringe, the current syringe is usually disposable, one person uses the disposable syringe, after the medical staff injects the liquid medicine into a patient, the needle head of the used syringe is exposed, if the syringe is thrown into a dustbin directly, the sanitation worker is easy to be stabbed, if the medical staff is covered with a protective cover, the protective cover is required to be sleeved on the needle point, and the medical staff is also easy to be stabbed.
To above-mentioned problem, chinese patent publication No. CN209004916U discloses a syringe needle and syringe, the syringe needle includes the needle, the needle file, stop the unit, locking separation unit, the one end that the needle kept away from the needle point sets up in the needle file, stop the unit setting in the position of needle bottom and needle file butt, locking separation unit includes the grip block, the grip channel, the worm wheel, worm and worm wheel support, the grip channel sets up on the needle file and the extending direction perpendicular to needle's extending direction, the grip block sets up in the grip channel, the worm sets up in the grip block bottom, the worm wheel sets up in the grip channel with the position that the worm bottom corresponds, the worm wheel support is used for fixed worm wheel, the grip block passes through worm wheel worm and moves in the grip channel.
The syringe in the prior art can separate and recover the needle head and the needle seat, and omits the operation of returning the trocar cap, but the needle head is still exposed outside, and the risk of puncture and puncture exists during the subsequent recovery of the needle head, so that the problem is not fundamentally solved.
Disclosure of Invention
The utility model aims to provide a disposable self-destruction type safety propeller which can recover a needle into an injection cylinder, does not need to return a trocar cap, and fundamentally avoids the exposure of the needle so as to solve the problems in the prior art.
The aim of the utility model can be achieved by the following technical scheme:
a disposable self-destroying safety propeller, comprising a syringe and a needle, further comprising:
the needle seat sleeve is detachably and fixedly arranged at one end of the injection tube;
the needle seat is detachably and fixedly arranged in the needle seat sleeve, one end of the needle is fixedly embedded in the needle seat, and the other end of the needle penetrates through the top of the needle seat sleeve;
the core rod is movably arranged in the injection tube, the end part of the core rod is sleeved with a rubber piston, and the rubber piston is in sliding fit with the inner wall of the injection tube;
the clamping piece is arranged between the needle seat and the core rod, and the core rod and the needle seat can be clamped and connected together by the clamping piece.
As a further scheme of the utility model: the fastener includes:
the splayed back-off is arranged at one end of the needle seat far away from the needle head, and a buckling position is arranged on the splayed back-off;
the push rod is arranged at the end part of the core rod and penetrates through the rubber piston, and a clamping groove matched with the buckling position is formed in the end part of the push rod far away from the core rod.
As a further scheme of the utility model: the injection tube is characterized in that a clamping ring is arranged in one end, far away from the needle head, of the injection tube, an annular step is formed on the inner wall of the injection tube by the clamping ring, and an annular clamping ring attached to the inner wall of the injection tube is fixedly sleeved on the core rod.
As a further scheme of the utility model: the core rod is also provided with an annular gap, and the annular clamping ring is positioned between the rubber piston and the annular gap.
As a further scheme of the utility model: the end part of the injection tube is provided with a standard medical luer connector, and the needle seat sleeve is connected with the end part of the injection tube through the screw thread of the luer connector.
As a further scheme of the utility model: the splayed back-off is also provided with a hanging table which can be clamped with a blind hole arranged at the end part of the injection tube.
As a further scheme of the utility model: the needle stand also comprises a protective cap for protecting the needle head, and the protective cap is detachably arranged on the needle stand sleeve.
The utility model has at least the following beneficial effects:
(1) By arranging the needle seat sleeve, the needle seat, the core rod and the clamping piece, after injection is finished, the core rod is continuously pushed, the splayed back-off is extruded to shrink, and the clamping groove at the head of the push rod is clamped into the buckling position at the end part of the splayed back-off, so that the splayed back-off is clamped with pushing, and then the needle seat and the needle head can be pulled into the inner space of the injection tube by pulling the core rod, thereby realizing recovery of the needle head, and fundamentally avoiding exposure of the needle head;
(2) When the core rod is pulled outwards until the annular clamping ring moves to be attached to the end face of the annular step formed by the clamping ring, the core rod can be blocked from being pulled outwards, and the core rod is broken off from the annular notch, so that self-destruction of the propeller is realized;
(3) Through setting up the hanging platform at the splayed back-off, hanging platform and seting up the blind hole block at the syringe tip to guarantee that needle file and syringe needle can't back, prevent to receive the resistance and roll back when the syringe needle pierces skin, improve the security of whole propeller.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the overall structure of the present utility model;
FIG. 3 is an exploded schematic view of the overall structure of the present utility model;
FIG. 4 is a schematic view of the inverted splayed structure of the present utility model.
In the figure: 1. a syringe; 2. a needle; 3. a hub sleeve; 4. a needle stand; 5. a core bar; 6. a rubber piston; 7. inverted V-shaped buckle; 8. a buckling position; 9. a push rod; 10. a clamping groove; 11. a collar; 12. a step; 13. a ring-shaped clasp; 14. an annular gap; 15. and (5) hanging a table.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model is a disposable self-destroying type safety propeller, which comprises an injection tube 1, a needle head 2, a needle seat sleeve 3, a needle seat 4, a core rod 5 and a clamping piece.
Wherein, the needle seat sleeve 3 is detachably and fixedly arranged at one end of the injection tube 1, so that the needle seat sleeve 3 can be replaced; the needle seat 4 is detachably and fixedly arranged in the needle seat sleeve 3, one end of the needle head 2 is fixedly embedded in the needle seat 4, the other end penetrates through the top of the needle seat sleeve 3, and the needle head 2 can be fixedly embedded in the needle seat 4 by using light-curing adhesive, preferably, a protective cap for protecting the needle head 2 is detachably arranged on the needle seat sleeve 3, so that the needle head 2 is prevented from being polluted and stabbed medical staff; the core rod 5 is movably arranged in the injection tube 1, the end part of the core rod 5 is sleeved with the rubber piston 6, the rubber piston 6 is in sliding fit with the inner wall of the injection tube 1, and the core rod 5 is pushed to move towards the injection tube 1, so that the liquid medicine in the injection tube 1 can be injected into a human body through the needle head 2; the clamping piece is arranged between the needle seat 4 and the core rod 5, the core rod 5 and the needle seat 4 can be clamped and connected together by the clamping piece, after injection is completed, the core rod 5 and the needle seat 4 are connected together by the clamping piece, and then the core rod 5 is pulled outwards, the needle seat 4 and the needle head 2 can be pulled into the inner space of the injection cylinder 1, so that the recovery function of the needle head 2 is realized, the needle head 2 is fundamentally prevented from being exposed, the risk of puncture by the needle head 2 is avoided in the subsequent recovery treatment, and the process of returning a trocar cap is omitted.
As shown in fig. 4, in this embodiment, the engaging element includes a splayed back-off 7 and a push rod 9, the splayed back-off 7 is disposed at one end of the needle stand 4 away from the needle head 2, and a buckling position 8 is provided on the splayed back-off 7; the push rod 9 is arranged at the end part of the core rod 5 and penetrates through the rubber piston 6, and a clamping groove 10 matched with the buckling position 8 is formed in the end part of the push rod 9 away from the core rod 5; after injection is finished, the core rod 5 is pushed continuously, the core rod 5 pushes the push rod 9 to move towards the splayed back-off 7, when the push rod 9 is in conflict with the splayed back-off 7, the splayed back-off 7 is extruded to shrink, the core rod 5 is pushed continuously, the clamping groove 10 at the head of the push rod 9 is clamped into the buckling position 8 at the end part of the splayed back-off 7, so that the splayed back-off 7 is clamped with pushing, the needle seat 4 and the needle head 2 can be pulled into the inner space of the injection tube 1 by pulling the core rod 5, and the recovery of the needle head 2 is realized.
Further, as shown in fig. 2, a collar 11 is arranged in one end of the injection tube 1 far away from the needle head 2, the collar 11 forms an annular step 12 on the inner wall of the injection tube 1, and an annular clamping ring 13 attached to the inner wall of the injection tube 1 is fixedly sleeved on the core rod 5; the core bar 5 is also provided with an annular gap 14, and an annular clamping ring 13 is positioned between the rubber piston 6 and the annular gap 14; when the core rod 5 is pulled outwards, when the annular clamping ring 13 moves to be attached to the end face of the annular step 12 formed by the clamping ring 11, the core rod 5 is blocked and cannot be pulled outwards, so that the needle seat 4 and the needle head 2 cannot be pulled out of the injection tube 1, then the core rod 5 is broken off from the annular notch 14 by hand, at the moment, the self-destruction of the propeller is realized, and the needle head 2 and the needle seat 4 are also fixed in the injection tube 1, so that the needle head 2 is fundamentally prevented from being exposed.
Further, as shown in fig. 2 and 4, the splayed back-off 7 is further provided with a hanging table 15, and the hanging table 15 can be clamped with a blind hole formed at the end part of the injection tube 1; after the needle seat 4, the needle head 2 and the needle seat sleeve 3 are integrally arranged on the injection tube 1, the hanging table 15 at the bottom of the splayed back-off 7 is clamped with the blind hole formed at the end part of the injection tube 1, so that the needle seat 4 and the needle head 2 are prevented from retreating backwards, the needle head 2 is prevented from retreating due to resistance when penetrating the skin, and the safety of the whole propeller is improved.
The end of the syringe 1 can be set as a standard medical luer connector, and the needle seat sleeve 3 is connected to the end of the syringe 1 through the luer connector screw thread, so that standardized transfusion connection is realized, and the application range of the utility model is improved.
The working principle of the utility model is as follows:
the method comprises the steps of slowly pushing the core rod 5 to inject liquid medicine in the injection tube 1 into a human body, pulling out the needle head 2 from the human body after injection is completed, continuously pushing the core rod 5, pushing the push rod 9 to move towards the splayed back-off 7 by the core rod 5, extruding and shrinking the splayed back-off 7 when the push rod 9 is in contact with the splayed back-off 7, clamping the clamping groove 10 at the head of the push rod 9 into the buckling position 8 at the end part of the splayed back-off 7, clamping the splayed back-off 7 with the core rod 5, pulling the needle seat 4 and the needle head 2 into the inner space of the injection tube 1 by pulling the core rod 5, stopping pulling the core rod 5 when the annular clamping ring 13 moves to the end face of the annular step 12 formed by the clamping ring 11, and then manually breaking the core rod 5 from the annular notch 14, so that the propeller is self-destructed, and the needle head 2 and the needle seat 4 are also fixed in the injection tube 1, thereby fundamentally avoiding the needle head 2 from being exposed.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present utility model.
In addition, unless explicitly stated or limited otherwise, the terms "mounted," "connected," "coupled," and the like should be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The foregoing detailed description of the preferred embodiments of the utility model should not be taken as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (7)
1. The disposable self-destruction type safety propeller comprises a syringe (1) and a needle (2), and is characterized by further comprising:
a needle seat sleeve (3) which is detachably and fixedly arranged at one end of the injection tube (1);
the needle seat (4) is detachably and fixedly arranged in the needle seat sleeve (3), one end of the needle head (2) is fixedly embedded in the needle seat (4), and the other end of the needle head penetrates through the top of the needle seat sleeve (3);
the core rod (5) is movably arranged in the injection tube (1), a rubber piston (6) is sleeved at the end part of the core rod (5), and the rubber piston (6) is in sliding fit with the inner wall of the injection tube (1);
the clamping piece is arranged between the needle seat (4) and the core rod (5), and the core rod (5) and the needle seat (4) can be clamped and connected together by the clamping piece.
2. The disposable self-destructing safety pusher of claim 1 wherein the snap-fit member comprises:
the splayed back-off (7) is arranged at one end of the needle seat (4) far away from the needle head (2), and a buckling position (8) is arranged on the splayed back-off (7);
the push rod (9) is arranged at the end part of the core rod (5) and penetrates through the rubber piston (6), and a clamping groove (10) matched with the buckling position (8) is formed in the end part of the push rod (9) far away from the core rod (5).
3. The disposable self-destruction type safety propeller according to claim 2, wherein a collar (11) is arranged in one end of the injection tube (1) far away from the needle head (2), the collar (11) forms an annular step (12) on the inner wall of the injection tube (1), and an annular clamping ring (13) attached to the inner wall of the injection tube (1) is fixedly sleeved on the core rod (5).
4. A disposable self-destroying safety propeller according to claim 3, wherein the core rod (5) is further provided with an annular gap (14), and the annular clasp is located between the rubber piston (6) and the annular gap (14).
5. A disposable self-destructing safety pusher according to any of the claims from 2 to 4 characterised in that the end of the syringe (1) is provided as a standard medical luer, the hub sleeve (3) being screwed to the end of the syringe (1) by means of a luer screw.
6. The disposable self-destruction type safety propeller according to claim 5, wherein a hanging table (15) is further arranged on the splayed back-off (7), and the hanging table (15) can be clamped with a blind hole formed in the end part of the injection tube (1).
7. A disposable self-destructing safety pusher according to claim 1 and characterized in that it also comprises a protective cap for protecting the needle (2), the cap being removably mounted on the hub sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320012822.6U CN219251231U (en) | 2023-01-04 | 2023-01-04 | Disposable self-destruction type safety propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320012822.6U CN219251231U (en) | 2023-01-04 | 2023-01-04 | Disposable self-destruction type safety propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219251231U true CN219251231U (en) | 2023-06-27 |
Family
ID=86864521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320012822.6U Active CN219251231U (en) | 2023-01-04 | 2023-01-04 | Disposable self-destruction type safety propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219251231U (en) |
-
2023
- 2023-01-04 CN CN202320012822.6U patent/CN219251231U/en active Active
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