CN106730175B - Integrated safety syringe - Google Patents
Integrated safety syringe Download PDFInfo
- Publication number
- CN106730175B CN106730175B CN201710021861.1A CN201710021861A CN106730175B CN 106730175 B CN106730175 B CN 106730175B CN 201710021861 A CN201710021861 A CN 201710021861A CN 106730175 B CN106730175 B CN 106730175B
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- China
- Prior art keywords
- clamping piece
- needle
- needle cap
- head
- conical head
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3293—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle hub
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/46—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for controlling depth of insertion
Abstract
The invention discloses an integrated safety syringe, belongs to the technical field of medical supplies, and solves the problems that in the prior art, the syringe is inconvenient and unsafe to operate, acupuncture events and pollution are easy to occur, a needle stem is easy to break, and a beginner nurse is difficult to master the injection depth; the outer sleeve comprises a core rod and an outer sleeve, wherein the front end of the outer sleeve is provided with a conical head, the outer sleeve further comprises a needle head fixed on the conical head, and a needle cap clamped on the conical head and used for covering the needle head, a first clamping piece is located at the joint of the conical head and the needle head, a third clamping piece is located at the root of the conical head, a second clamping piece is located between the first clamping piece and the third clamping piece, the distance between the third clamping piece and the first clamping piece is 2/3 times of the length of the needle head, the open end of the needle cap is provided with a semicircular convex edge, the other end of the needle cap is sealed through a silica gel section, the length of the silica gel section which is not sealed by the needle cap is the same as the length of the needle head, and the distance between the second clamping piece and the first clamping piece is larger than the thickness of the silica gel section. The invention has simple structure, scientific and reasonable design and convenient operation.
Description
Technical Field
The invention belongs to the technical field of medical supplies, and particularly relates to an integrated safety syringe.
Background
In the prior art, an injector and a needle head are separated, and when the injector is used, a needle base covered with a needle cap is arranged on a conical head of the injector, and then the needle cap is pulled out to expose the needle head; after use, the needle cap is covered back to the needle base, and the needle head is arranged in the needle cap. In actual operation, the force for pulling out the needle cap is not controlled well, and a nurse is easy to be stabbed by the needle head. In addition, after the syringe is used, when the needle cap is sleeved back on the needle head, the needle head is small and easy to be sleeved, so that a nurse is stabbed, and the infection risk of the nurse is increased. Therefore, the nurse is generally not clinically advised to use the syringe and then back set the needle cap. However, the nurse does not need to back sleeve the needle cap after injecting or drawing blood for the patient, and the naked needle is easy to cause puncture injury to the patient, family members and other workers, thereby increasing the infection risk. After the nurse dispenses the medicine by using the syringe, the nurse places the injection needle in the opened ampoule bottle without sleeving the needle cap back, and the injection needle is exposed in the air, so that the pollution is easily caused.
In addition, when the existing syringe is used for intramuscular injection, the nurse can pay great attention to the fact that the needle stalk is not completely penetrated into the muscle so as to prevent the needle stalk from being broken from the root connection part. If the needle head is broken in an unexpected situation, a patient needs to keep the local part and the limb still, and a nurse clamps the broken end of the needle head by using vascular forceps quickly and pulls out the broken end; if the needle is completely embedded into the muscle, the needle needs to be taken out by a surgeon, which causes pain to the patient. Therefore, clinically, the injection depth is generally required to be not more than two thirds of the needle point, but the handling by a beginner nurse is difficult.
Therefore, the syringe is easy and convenient to operate, can avoid the threat of acupuncture, avoids the pollution of the syringe when in use, avoids the breaking of the needle stalk, is convenient for beginners to master and use, and becomes a problem to be solved by technical staff in the field.
Disclosure of Invention
The invention provides an integrated safety syringe, which solves the problems that the syringe in the prior art is inconvenient and unsafe to operate and is easy to have acupuncture events and pollution when in use. The technical scheme adopted by the invention is as follows:
the technical scheme adopted by the invention is as follows:
an integrated safety syringe comprises an outer sleeve, a piston and a core rod, wherein the front end of the outer sleeve is provided with a conical head, the rear end of the outer sleeve is provided with an outer sleeve turned edge, the core rod is provided with the piston and the rear end of the outer sleeve turned edge, and the periphery of the piston is provided with a sealing ring and is arranged in the outer sleeve; the needle cap is characterized by further comprising a needle head fixed on the conical head and a needle cap clamped on the conical head and used for sleeving the needle head, wherein a first clamping piece, a second clamping piece and a third clamping piece are arranged on the conical head, the first clamping piece is located at the connecting position of the conical head and the needle head, the third clamping piece is located at the root of the conical head, the second clamping piece is located between the first clamping piece and the third clamping piece, the distance between the third clamping piece and the first clamping piece is 2/3 times of the length of the needle head, a semicircular convex edge matched with the first clamping piece, the second clamping piece and the third clamping piece is arranged at the opening end of the needle cap, the other end of the needle cap is sealed through a silica gel section, the length of the silica gel section which is not sealed by the needle cap is the same as that of the needle head, and the distance between the second clamping piece and the first clamping piece is larger than the thickness of the silica gel section so that the convex edge can smoothly break through the silica gel section to push medicine at the needle head of the second clamping piece.
Furthermore, the first clamping piece, the second clamping piece and the third clamping piece are all annular grooves which are inwards sunken on the outer surface of the conical head.
Further, the diameter of the outer end face of the closed end of the needle cap is the same as that of the outer end face of the scalp needle catheter connector.
Further, the needle cap is in a circular truncated cone shape, and the diameter of the opening end of the needle cap is larger than that of the closing end of the needle cap.
Furthermore, the back half section of the needle cap is cylindrical, the front half section is in a circular truncated cone shape, the diameter of the joint of the front half section and the back half section of the needle cap gradually decreases to the diameter of the closed end, a fourth clamping piece in the shape of an annular groove is arranged on the periphery of the joint of the front half section and the back half section of the needle cap, and an outer needle cap with one end closed and the other end opened and used for covering the front half section of the needle cap is clamped on the fourth clamping piece.
Furthermore, the inner surface of the opening end of the outer needle cap is provided with a semicircular convex rib of the outer needle cap matched with the fourth clamping piece.
Further, the inner diameter of the opening end of the outer needle cap is the same as the outer diameter of the infusion apparatus connector.
Further, the thickness of the silicone segment is less than 1/10 times the length of the needle tip.
The cone head is also referred to as a nipple in the present invention.
Compared with the prior art, the invention has the following beneficial effects:
the invention has simple structure, scientific and reasonable design, convenient and safe operation and can effectively avoid the problems of easy occurrence of acupuncture events and pollution when the injector is used.
The needle head is fixedly connected with the conical head, the first clamping piece is positioned at the connecting part of the conical head and the needle head, and the needle cap is connected with the conical head through the first clamping piece so as to cover the needle head; the distance between the second clamping piece and the first clamping piece is larger than the thickness of the silica gel section, so that the needle can smoothly break through the silica gel section to push the medicine when the convex edge is clamped and fixed on the second clamping piece; the distance between the third clamping piece and the first clamping piece is 2/3 the length of the needle head, so that when the needle cap slides to the third clamping piece, the exposed needle point of the liquid medicine suction and intramuscular injection is not more than 2/3, the requirements of injection and dosage can be met, and the situation that all needle stems penetrate into muscles and the needle stems are broken off from the root joints during intramuscular injection is avoided; exposing 2/3 the tip of the needle no more than the length of the needle also facilitates the handling of the injection depth by a novice nurse. The diameter of the outer end face of the closed end of the needle cap is the same as that of the outer end face of the scalp needle catheter connector, so that the medicine is convenient to push. The inner diameter of the opening end of the outer needle cap is the same as the outer diameter of the infusion apparatus connector, so that the infusion apparatus can be conveniently covered when medicine is pushed.
The nurse when using, with the needle cap by the solid gliding of first card to the solid of second card or the solid of third card, the needle point punctures needle cap blind end, exposes the syringe needle, can push away the medicine, dispense or operation such as intramuscular injection, has avoided among the prior art the nurse that does not well control the dynamics and lead to when pulling out the needle cap to be stabbed the problem. After the operation is finished, the needle cap is pushed up to the first clamping piece, and the needle point is placed in the needle cap.
The invention has simple and convenient operation, can complete the downward sliding of the needle cap and the upward pushing of the needle cap by one hand, is safe and convenient, avoids the problem that nurses are easy to be stabbed when the needle cap is pulled off and sleeved back in the prior art, avoids the stabbed threat to patients, family members and other workers, and avoids the risk of polluting the syringe. The outer needle cap can cover the infusion apparatus when a patient needs to inject medicine into veins during infusion, so as to avoid bacteria infection and pollution.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of the structure of the cone head and the needle head of the invention.
Fig. 3 is a schematic view of the structure of the needle cap and the outer needle cap of the present invention.
Fig. 4 is an enlarged view of a portion a of fig. 3.
Fig. 5 is a view showing the state of intramuscular injection according to the present invention.
Fig. 6 is a diagram of the drug-pushing state when the scalp acupuncture is connected.
Fig. 7 is a schematic view of the external needle cap of the present invention being connected to an infusion set connector.
Wherein, the names corresponding to the reference numbers are:
1-conical head, 2-outer sleeve curled edge, 3-outer sleeve, 4-piston, 5-pressing hand, 6-core bar, 7-sealing ring, 8-needle head, 9-needle cap, 10-first clamping piece, 11-second clamping piece, 12-convex edge, 13-outer needle cap, 14-outer needle cap convex edge, 15-third clamping piece and 16-fourth clamping piece.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1-7, the integrated safety syringe comprises an outer sleeve 3 with a conical head 1 at the front end and an outer sleeve turned edge 2 at the rear end, a piston 4 at the front end and a core rod 6 with a press handle 5 at the rear end, wherein a sealing ring 7 is arranged on the periphery of the piston 4 and is arranged in the outer sleeve 3; the needle head comprises a conical head 1, a needle head 8 fixed on the conical head 1 and a needle cap 9 clamped on the conical head 1 and used for sleeving the needle head 8, wherein the conical head 1 is provided with a first clamping piece 10, a second clamping piece 11 and a third clamping piece 15, the first clamping piece 10, the second clamping piece 11 and the third clamping piece 15 are all annular grooves which are inwards recessed on the outer surface of the conical head 1, the first clamping piece 10 is positioned at the connecting part of the conical head 1 and the needle head 8, the third clamping piece 15 is positioned at the root part of the conical head 1, the second clamping piece 11 is positioned between the first clamping piece 10 and the third clamping piece 15, the distance between the third clamping piece 15 and the first clamping piece 10 is 2/3 of the length of the needle head 8, the open end of the needle cap 9 is provided with a semicircular convex edge 12 which is matched with the first clamping piece 10, the second clamping piece 11 and the third clamping piece 15 at the same time, and the other end of the needle cap 9 is sealed by a silica gel section, the diameter of the outer end face of the closed end of the needle cap 9 is the same as the diameter of the outer end face of the scalp needle catheter connector, the length of the silica gel section which is not sealed by the needle cap 9 is the same as the length of the needle head 8, the needle cap 9 is in a circular truncated cone shape, the diameter of the open end of the needle cap 9 is larger than the diameter of the closed end, the distance between the second clamping piece 11 and the first clamping piece 10 is larger than the thickness of the silica gel section, so that the needle head 8 can smoothly break through the silica gel section to push medicine when the convex edge 12 is clamped and fixed on the second clamping piece 11, the rear half section of the needle cap 9 is cylindrical, the front half section is in a circular truncated cone shape, the diameter of the joint of the front half section and the rear half section of the needle cap 9 is gradually reduced to the diameter of the closed end, a fourth clamping piece 16 in an annular groove shape is arranged on the periphery of the joint of the front half section and the rear half section of the needle cap 9, an outer needle cap 13 used for covering the front half section of the needle cap 9 is clamped on the fourth clamping piece 16, the inner surface of the opening end of the outer needle cap 13 is provided with a semicircular outer needle cap convex edge 14 matched with the fourth clamping piece 16, the inner diameter of the opening end of the outer needle cap 13 is the same as the outer diameter of the infusion apparatus connector, and the thickness of the silica gel section is less than 1/10 times of the length of the needle point 8.
When not in use, the needle cap 9 is connected with the conical head 1 through the first clamping piece 10 to cover the needle head 8.
When dispensing is needed, the outer needle cap 13 is taken down from the needle cap 9, the needle cap 9 slides downwards to the third clamping piece 15 through the second clamping piece 11 from the first clamping piece 10, the needle point punctures the closed end of the needle cap 9, the length of the exposed needle 8 is 2/3 of the length of the whole needle, and dispensing operation is carried out.
When medicine needs to be pushed after medicine dispensing is finished, the needle cap 9 is pushed up to the second clamping piece 11 through the third clamping piece 15 and is connected with a scalp needle to push medicine, and the outer needle cap 13 is used for covering a connector of an infusion apparatus. After the medicine is pushed, the injector is separated from the scalp needle, the needle cap 9 is pushed up to the first clamping piece 10 from the second clamping piece 11, the needle head 8 is arranged in the needle cap 9, the outer needle cap 13 connected with the filter is taken down, and the infusion apparatus is connected with the scalp needle.
When intramuscular injection is needed after the dispensing is finished, the needle cap 9 is placed at the third fastener 15, and the exposed needle point does not exceed 2/3 of the length of the needle head, so that the requirement of clinical injection depth is met, and meanwhile, a beginner nurse can conveniently master the injection depth; after completion of the intramuscular injection, the needle cap 9 is pushed up to the first catch 10, and the needle 8 is placed in the needle cap 9.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (6)
1. An integrated safety syringe comprises an outer sleeve (3) with a conical head (1) at the front end and an outer sleeve turned edge (2) at the rear end, a piston (4) at the front end and a core rod (6) with a press handle (5) at the rear end, wherein a sealing ring (7) is arranged on the periphery of the piston (4) and is arranged in the outer sleeve (3); the method is characterized in that: the needle comprises a conical head (1), a needle head (8) and a needle cap (9), wherein the needle head (8) is fixed on the conical head (1), the needle cap (9) is clamped on the conical head (1) and used for sleeving the needle head (8), a first clamping piece (10), a second clamping piece (11) and a third clamping piece (15) are arranged on the conical head (1), the first clamping piece (10) is located at the connecting position of the conical head (1) and the needle head (8), the third clamping piece (15) is located at the root of the conical head (1), the second clamping piece (11) is located between the first clamping piece (10) and the third clamping piece (15), the distance between the third clamping piece (15) and the first clamping piece (10) is 2/3 times of the length of the needle head (8), the needle cap (9) is provided with a semicircular convex rib (12) which is matched with the first clamping piece (10), the second clamping piece (11) and the third clamping piece (15) at the same time, the other end of the needle cap (9) is sealed through the silica gel section, the length of the silica gel section which is not sealed on the needle cap (9) is the same as that of the needle head (8), and the distance between the second clamping piece (11) and the first clamping piece (10) is larger than the thickness of the silica gel section, so that the needle head (8) can smoothly break through the silica gel section to push medicine when the convex edge (12) is clamped on the second clamping piece (11);
The needle cap (9) is in a round table shape, and the diameter of the opening end of the needle cap is larger than that of the closed end of the needle cap; the needle cap comprises a needle cap body (9), and is characterized in that the rear half section of the needle cap body (9) is cylindrical, the front half section of the needle cap body is in a round table shape, the diameter of the joint of the front half section and the rear half section of the needle cap body (9) is gradually reduced to the diameter of the closed end, a fourth clamping piece (16) in an annular groove shape is arranged on the periphery of the joint of the front half section and the rear half section of the needle cap body (9), and an outer needle cap (13) with one closed end and the other open end and used for covering the front half section of the needle cap body (9) is clamped on the fourth clamping piece (16).
2. The integrated safety syringe of claim 1, wherein: the first clamping piece (10), the second clamping piece (11) and the third clamping piece (15) are all annular grooves which are inwards sunken on the outer surface of the conical head (1).
3. The integrated safety syringe according to claim 2, wherein: the diameter of the outer end face of the closed end of the needle cap (9) is the same as that of the outer end face of the scalp needle catheter connector.
4. The integrated safety syringe according to claim 3, wherein: the inner surface of the opening end of the outer needle cap (13) is provided with a semicircular outer needle cap convex rib (14) matched with the fourth clamping piece (16).
5. The integrated safety syringe of claim 4, wherein: the inner diameter of the opening end of the outer needle cap (13) is the same as the outer diameter of the infusion apparatus connector.
6. An integrated safety syringe according to any one of claims 1 to 5, wherein: the thickness of the silicone section is less than 1/10 times the length of the needle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021861.1A CN106730175B (en) | 2017-01-12 | 2017-01-12 | Integrated safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710021861.1A CN106730175B (en) | 2017-01-12 | 2017-01-12 | Integrated safety syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106730175A CN106730175A (en) | 2017-05-31 |
| CN106730175B true CN106730175B (en) | 2022-06-28 |
Family
ID=58947408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710021861.1A Active CN106730175B (en) | 2017-01-12 | 2017-01-12 | Integrated safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106730175B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113952001B (en) * | 2021-10-22 | 2023-04-07 | 首都医科大学宣武医院 | Bone marrow puncture needle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050334U (en) * | 1989-03-08 | 1990-01-03 | 王正忠 | Long arm injector for livestock |
| US5779683A (en) * | 1994-02-14 | 1998-07-14 | Medicorp Holding S.A. | Injector module for a syringe and pre-filled syringe provided therewith |
| US5957892A (en) * | 1998-03-12 | 1999-09-28 | Specialized Health Products, Inc. | Safety catheter insertion apparatus and methods |
| CN102091372A (en) * | 2009-12-11 | 2011-06-15 | 富医科技股份有限公司 | Sheath cover structure of needle head of injector |
| CN204521810U (en) * | 2015-02-06 | 2015-08-05 | 吴妮 | Disposable safe venous needle |
-
2017
- 2017-01-12 CN CN201710021861.1A patent/CN106730175B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050334U (en) * | 1989-03-08 | 1990-01-03 | 王正忠 | Long arm injector for livestock |
| US5779683A (en) * | 1994-02-14 | 1998-07-14 | Medicorp Holding S.A. | Injector module for a syringe and pre-filled syringe provided therewith |
| US5957892A (en) * | 1998-03-12 | 1999-09-28 | Specialized Health Products, Inc. | Safety catheter insertion apparatus and methods |
| CN102091372A (en) * | 2009-12-11 | 2011-06-15 | 富医科技股份有限公司 | Sheath cover structure of needle head of injector |
| CN204521810U (en) * | 2015-02-06 | 2015-08-05 | 吴妮 | Disposable safe venous needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106730175A (en) | 2017-05-31 |
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