CN219071581U - Safety butterfly needle for preventing accidental injury - Google Patents
Safety butterfly needle for preventing accidental injury Download PDFInfo
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- CN219071581U CN219071581U CN202222626974.3U CN202222626974U CN219071581U CN 219071581 U CN219071581 U CN 219071581U CN 202222626974 U CN202222626974 U CN 202222626974U CN 219071581 U CN219071581 U CN 219071581U
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Abstract
The utility model relates to the technical field of medical appliances, in particular to a safe butterfly needle capable of preventing accidental injury, which comprises a needle seat and a needle body fixedly connected with the needle seat, wherein a cavity is arranged in the needle seat, the needle seat comprises a horizontal part and a vertical part, and the needle body is connected to the bottom of the vertical part in a penetrating way; the top of one end of the horizontal part, which is close to the vertical part, is provided with a pressing part, and the pressing part comprises a pressing piece, a resetting piece and a limiting piece; the top of the needle body is fixedly connected to the bottom of the pressing piece. By the technical scheme, the problem that a medical staff can easily prick the hand pressing the transfusion port when pulling out the butterfly needle can be solved.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a safe butterfly needle capable of preventing accidental injury.
Background
The transfusion port is a closed transfusion device completely implanted in a human body, comprises a catheter part with a tip end positioned in an upper vena cava and an injection seat implanted under the skin, and can provide safe and reliable intravenous medicine channels for patients who are infused with chemotherapy medicines for a long time, transfusions, enteral nutrition for a long time and chronic diseases for long-term transfusion, such as: the medicine is used for chemotherapy of tumor patients, can well reduce the risk of infection and simultaneously reduce the times of venipuncture. When the patient is infused by the infusion port, a special butterfly needle (also called a butterfly wing needle) is needed.
The existing butterfly needle generally comprises a needle wing and a 7-shaped needle body connected with the needle wing, when the butterfly needle is used, the vertical part of the 7-shaped needle body is penetrated into the skin of a patient and then enters an infusion port for infusion, a piece of small gauze is padded between the needle wing and the skin of the patient, and then the needle wing and the needle body are fixed on the skin of a human body by transparent application; and when the transparent application is fixed, the whole butterfly needle can be covered. When the needle is withdrawn after the patient is completely infused, the healthcare worker needs to separate the transparent application from the skin and then push one hand against the port seat of the infusion port and withdraw the butterfly needle with the other hand. However, in the actual operation process, because the connection between the infusion port and the butterfly needle is relatively tight, the hand tends to return forward at the moment when the medical staff pulls out the needle, and then the pulled needle point is easy to prick the hand of the medical staff for pressing the infusion port, so that the medical staff is very dangerous.
Disclosure of Invention
The utility model provides a safe butterfly needle capable of preventing accidental injury, which can solve the problem that medical staff easily pricks hands pressing an infusion port when pulling out the butterfly needle.
The application provides the following technical scheme:
the safe butterfly needle comprises a needle seat and a needle body fixedly connected with the needle seat, wherein a cavity is formed in the needle seat, the needle seat comprises a horizontal part and a vertical part, and the needle body is connected to the bottom of the vertical part in a penetrating way; the top of one end of the horizontal part, which is close to the vertical part, is provided with a pressing part, and the pressing part comprises a pressing piece, a resetting piece and a limiting piece; the top of the needle body is fixedly connected to the bottom of the pressing piece.
The beneficial effect of this scheme lies in:
1. the condition that is stabbed when medical personnel pull out the butterfly needle can be fine avoided takes place: according to the technical scheme, the pressing part is arranged at one end, close to the vertical part, of the horizontal part, the pressing part comprises the pressing part, the resetting part and the limiting part capable of limiting the pressing part, the needle body is fixedly connected to the bottom of the pressing part, when a patient who uses the transfusion port for transfusion is transfused, the needle body is only required to be aligned with the transfusion port, then the pressing part is pressed, the pressing part pushes the needle body to enter the transfusion port, and at the moment, the limiting part can limit the pressing part to prevent the pressing part from bouncing, so that the patient can be transfused smoothly. When the needle is required to be pulled out after the transfusion is finished, the pressing piece is only required to be pressed again, the limiting piece is not used for limiting the pressing piece any more, the reset piece is used for enabling the pressing piece to bounce, and then the needle body is driven to be pulled out of the transfusion port, so that the needle body can be pulled out of the transfusion port without pressing one hand of a medical staff by the other hand of the medical staff, and the situation that the hand of the medical staff for pulling out the needle returns to the direction of the other hand due to inertia when the medical staff pulls out the needle can be well avoided, and the hand of the transfusion port is pressed by the medical staff to be injured.
2. The operation is simple and convenient when the needle is pulled out: according to the technical scheme, when the needle is pulled out, the pressing piece is only required to be pressed, the limiting piece is not used for limiting the pressing piece any more, the pressing piece is sprung up under the action of the resetting piece, the needle body is driven to be pulled out of the transfusion port, the whole process can be completed even if a medical staff only uses one hand, and the operation is simpler and more convenient.
3. Preventing the infusion tube from bending and leading to the failure of liquid to be successfully infused into the patient: according to the technical scheme, the cavity is formed in the needle seat, the needle seat is in the shape of the horizontal part and the vertical part, the infusion tube can be connected to one end, far away from the vertical part, of the horizontal part, and liquid enters the vertical part through the cavity and then enters a patient through the needle body. Because the infusion port is generally embedded in the chest of a patient, the infusion tube is connected with the infusion tube through the horizontal part, so that the infusion tube is in a more gentle state, and compared with the infusion tube which is directly connected with a vertical needle body, the infusion tube can be prevented from being excessively bent at the joint of the infusion tube and the needle body due to gravity, so that liquid cannot be successfully input into the patient.
Further, fixedly connected with transparent lag that can deform on the vertical portion outer wall, the one end that vertical portion was kept away from to transparent lag is equipped with cross opening, and transparent lag is including the needle body cover.
By adopting the technical scheme, the deformable transparent protective sleeve is fixedly connected to the outer wall of the vertical part, and the needle body is wrapped by the transparent protective sleeve, so that the needle body can be prevented from being polluted before use; when the needle is used, the medical staff only needs to press the pressing piece, and the needle body can extend out of the transparent protective sleeve from the cross-shaped opening under the pushing of the pressing piece, so that the needle is very convenient; when the infusion is finished and the needle is pulled out, the medical staff presses the pressing piece, the needle body automatically retracts into the transparent protective sleeve, and the medical staff can be prevented from being accidentally stabbed when the infusion tube, the application and the butterfly needle are processed after being used
Further, the horizontal part is fixedly connected with a needle wing; the bottom of the needle wing is connected with a gasket; the bottom of the pad is provided with an adhesive layer.
By adopting the technical scheme, the pad is connected to the bottom of the needle wing, the bottom of the pad is connected with the adhesive layer, when the needle body is punctured into the transfusion port, the pad can fill the gap between the needle wing and the skin of a patient, the adhesive layer can be adhered to the skin of the patient to fix the pad and the needle wing, and then the needle wing, the butterfly needle and the needle are prevented from moving and falling.
Further, the pad is embodied as a foam having elasticity.
By adopting the technical scheme, the elastic foam is used as the pad, so that the pad can be suitable for patients with different body types, if the patient foam is weak, the gap between the needle wing and the skin of the patient can be filled by expanding, and if the patient foam is fat and good in physique, the gap between the needle wing and the skin of the patient can be filled by contracting, so that the pad is very convenient.
Further, the pressing piece comprises a pressing cap and a locking rod, the bottom of the pressing cap is provided with rotary teeth, and the side wall of the pressing cap is provided with a guide strip; the locking rod is provided with a meshing tooth matched with the rotating tooth, and one end of the locking rod far away from the meshing tooth is inserted into the pressing cap so that the rotating tooth is contacted with the meshing tooth; the pressing piece further comprises a push rod arranged in the vertical part and a connecting cylinder fixedly connected to the bottom of the push rod, a plurality of through grooves are formed in the connecting cylinder, a connecting cylinder rubber pad is fixedly connected to the bottom of the connecting cylinder, and the needle body is fixedly connected to the connecting cylinder rubber pad; the limiting piece comprises a sleeve fixedly connected to the top of the horizontal part, the pressing cap and the lower end of the locking rod are both positioned in the sleeve, a guide groove is formed in the inner wall of the sleeve, and saw teeth matched with the meshing teeth are formed in the bottom of the groove wall of the guide groove; the reset piece is positioned between the bottom of the rubber pad of the connecting cylinder and the inner wall of the bottom of the vertical part.
By adopting the technical scheme, when the needle body is punctured into the transfusion port, the pressing cap is only required to be pressed, and the guide strip on the pressing cap slides along the guide groove on the inner wall of the sleeve, so that the pressing cap slides downwards, and then the locking rod, the push rod and the connecting cylinder are pushed downwards, and then the needle body is pressed downwards, so that the needle body enters the transfusion port; when the pressing cap is loosened, the reset piece pushes the pressing cap and the locking rod to lift, the meshing teeth are clamped at the sawtooth part of the sleeve, and then the locking rod is prevented from continuously lifting, so that the needle body is fixed in the transfusion port, and the transfusion system is very convenient. After the needle body is fixed in the transfusion port, liquid enters the cavity of the vertical part through the cavity of the horizontal part, then enters the connecting cylinder from the through groove on the connecting cylinder, and finally enters the patient from the needle body; and through connecting the connecting cylinder rubber pad in connecting cylinder bottom, the connecting cylinder rubber pad can be fine prevent that liquid from directly flowing out from vertical portion, can make liquid be located needle upper portion all the time, can only follow the internal outflow of needle. When the needle body is required to be pulled out after transfusion is finished, the pressing cap is only required to be pressed again, the pressing cap slides downwards along the inner wall of the sleeve, when the pressing cap slides to the sawtooth edge of the sleeve, the rotating teeth are matched with the meshing teeth so as to push the locking rod, the push rod and the connecting cylinder downwards, and at the moment, the locking rod rotates under the matching of the rotating teeth and the meshing teeth so that the meshing teeth are aligned with the guide groove on the sleeve, the pressing cap is loosened, the reset piece pushes the pressing cap and the locking rod to lift, and when the pressing cap and the locking rod lift to the sawtooth part of the sleeve, the guide strip and the meshing teeth on the pressing cap slide upwards continuously along the guide groove, so that the needle body is driven to pull out the transfusion port.
Further, the pressing piece comprises a pressing rod, a button which is connected to the top of the pressing rod in a sliding manner and a liquid inlet barrel which is fixedly connected to the bottom of the pressing rod, a plurality of through grooves are formed in the liquid inlet barrel, a liquid inlet barrel rubber pad is fixedly connected to the bottom of the liquid inlet barrel, and the needle body is fixedly connected to the liquid inlet barrel rubber pad; the limiting piece comprises a limiting block fixedly connected to the top of the horizontal part, and a clamping groove capable of clamping in the button is formed in the limiting block.
By adopting the technical scheme, when the needle body is required to be inserted into the transfusion port, the push button is only required to be pressed, the pressing rod and the liquid inlet barrel are pushed to move downwards, the needle body enters the transfusion port in the process of moving downwards the pressing rod and the liquid inlet barrel, after the needle body completely enters the transfusion port, the push button slides along the pressing rod, the end part of the push button is clamped into the clamping groove of the limiting block, the pressing rod and the connecting barrel are prevented from being reset under the action of the resetting piece, the needle body is taken out of the transfusion port, and the transfusion port is very convenient. After the needle body is fixed in the transfusion port, liquid enters the cavity of the vertical part through the cavity of the horizontal part, then enters the liquid inlet cylinder from the through groove on the liquid inlet cylinder, and finally enters the patient from the needle body; the liquid inlet cylinder rubber pad is connected to the bottom of the liquid inlet cylinder, so that liquid can be well prevented from directly flowing out of the vertical part, and the liquid can be always located on the upper part of the needle body and can only flow out of the needle body. When the needle body is required to be pulled out after transfusion is finished, the button only needs to slide along the pressing rod again, so that the end part of the button is separated from the clamping groove, and under the action of the resetting piece, the pressing rod and the liquid inlet barrel are pushed upwards, and then the needle body is pulled out of the transfusion port.
Further, the reset piece is specifically a reset spring.
By adopting the technical scheme, the structure is simple, and the cost is low.
Further, the external diameter of the connecting cylinder is smaller than the internal diameter of the inner cavity of the vertical part, and the through groove is formed in the side wall of the connecting cylinder.
By adopting the technical scheme, after the liquid enters the vertical part through the cavity of the horizontal part, the liquid can enter the connecting cylinder through the through groove on the side wall of the connecting cylinder and then enter the patient from the needle body.
Further, the outer diameter of the liquid inlet barrel is smaller than the inner diameter of the inner cavity of the vertical part, and the through groove is formed in the side wall of the liquid inlet barrel.
By adopting the technical scheme, after the liquid enters the vertical part through the cavity of the horizontal part, the liquid can enter the liquid inlet cylinder through the through groove on the side wall of the liquid inlet cylinder and then enter the patient from the needle body.
Drawings
FIG. 1 is a top view of a first embodiment of a atraumatic safety butterfly needle of the utility model;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 (adhesive layer not shown);
FIG. 3 is an isometric view of a connecting barrel of a first embodiment of a atraumatic safety butterfly needle of the utility model;
FIG. 4 is an exploded view of a sleeve, a push cap and a locking lever in a first embodiment of a atraumatic safety butterfly needle of the utility model;
FIG. 5 is a schematic view showing a part of the inside of a sleeve in a first embodiment of a safety butterfly needle of the utility model;
FIG. 6 is a cross-sectional view (adhesive layer not shown) of a second embodiment of a atraumatic safety butterfly needle of the utility model;
fig. 7 is a cross-sectional view of a push button and a push rod in a second embodiment of a atraumatic safety butterfly needle of the utility model.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: needle stand 1, horizontal part 101, vertical part 102, needle wing 2, foam 3, sleeve 4, guide groove 401, saw tooth 402, pressing cap 5, guide bar 501, rotating tooth 502, locking lever 6, engaging tooth 601, push rod 7, connecting cylinder 8, through groove 801, connecting cylinder rubber pad 9, return spring 10, transparent protective cover 11, needle body 12, button 13, lateral sliding groove 1301, lateral groove 1302, pressing lever 14, lateral protrusion 1401, stopper 15, card slot 1501, liquid inlet cylinder 16, liquid inlet cylinder rubber pad 17.
Example 1
As shown in fig. 1, 2, 3, 4 and 5, a safety butterfly needle for preventing accidental injury comprises a needle seat 1 and a needle body 12 fixedly connected with the needle seat 1, wherein the needle seat 1 comprises a horizontal part 101 and a vertical part 102 integrally formed with the horizontal part 101. One end of the horizontal part 101, which is far away from the vertical part 102, is communicated with a pipeline for transfusion; the horizontal part 101 is fixedly connected with a needle wing 2, in particular, the top of the needle wing 2 is provided with a groove, and the horizontal part 101 is adhered or welded in the groove; the bottom of the needle wing 2 is adhered with a pad, in the embodiment, the pad is specifically elastic foam 3, and the bottom of the foam 3 is provided with an adhesive layer; the adhesive layer comprises adhesive arranged at the bottom of the foam 3 and release paper adhered to one side of the adhesive far away from the foam 3, and when the adhesive layer is used, the adhesive can be adhered to the skin of a patient only by tearing the release paper.
The top of one end of the horizontal portion 101, which is close to the vertical portion 102, is further provided with a pressing portion, and the pressing portion includes a pressing piece, a reset piece capable of resetting the pressing piece, and a limiting piece capable of limiting the pressing piece, where the reset piece is specifically a reset spring 10 in this embodiment. As shown in fig. 2, the pressing member includes a pressing cap 5, a locking lever 6, a push rod 7 provided in a vertical portion 102, and a connecting cylinder 8 welded to the bottom of the push rod 7, and a hole through which the push rod 7 protrudes is provided at the top of a horizontal portion 101. As shown in fig. 4, the bottom of the pressing cap 5 is provided with rotary teeth 502, and the side wall of the pressing cap 5 is provided with a guide strip 501; the side wall of the locking rod 6 is provided with meshing teeth 601 matched with the rotating teeth 502 on the pressing cap 5, the number of the meshing teeth 601 is smaller than that of the rotating teeth 502, the outer diameter of one end of the locking rod 6 far away from the meshing teeth 601 is smaller than that of one end close to the inner meshing teeth, so that one end of the locking rod 6 far away from the meshing teeth 601 can be inserted into the pressing cap 5, and the rotating teeth 502 are in contact with the meshing teeth 601; and the outer wall of the engagement tooth 601 protrudes from the outer wall of the thicker end of the locking lever 6. As shown in fig. 3, strip-shaped through grooves 801 are formed around the side wall of the connecting cylinder 8, and the outer diameter of the connecting cylinder 8 is smaller than the inner diameter of the cavity of the vertical part 102; the bottom of the connecting cylinder 8 is also welded with a connecting cylinder rubber gasket 9, a perforation is arranged on the connecting cylinder rubber gasket 9, and a needle body 12 is adhered in the perforation of the connecting cylinder rubber gasket 9; one end of the needle body 12 far away from the rubber pad 9 of the connecting cylinder extends out of the bottom of the vertical part 102, and a hole for extending out of the needle body 12 is formed in the bottom of the vertical part 102. The return spring 10 is arranged between the bottom of the connecting cylinder rubber pad 9 and the bottom inner wall of the vertical part 102, and the return spring 10 is welded with the bottom inner wall of the vertical part 102. The limiting piece comprises a sleeve 4 welded at the top of the horizontal part 101, the top of the horizontal part 101 is used for the push rod 7 to extend out of the hole in the sleeve 4, and the lower ends of the pressing cap 5 and the locking rod 6 and the upper end of the push rod 7 are both positioned in the sleeve 4; as shown in fig. 5, the inner wall of the sleeve 4 is provided with a protruding block, a guiding groove 401 is formed between every two adjacent protruding blocks, the bottom of the protruding block is provided with a saw tooth 402 matched with the engaging tooth 601, and the part of the engaging tooth 601 protruding from the outer wall of the thicker end of the locking rod 6 and the guiding strip 501 can slide in the guiding groove 401. ( The specific structure of the pressing part is the same as the pressing structure of the pressing rotary pen in the prior art, such as: ball point pens, so too much detail is not described here in too much detail )
The outer wall of the vertical part 102 is also adhered with a transparent protective sleeve 11, the part of the needle body 12 extending out of the bottom of the vertical part 102 is covered by the transparent protective sleeve 11, and the bottom of the transparent protective sleeve 11 is provided with a cross-shaped opening which can facilitate the extension of the needle body 12.
The specific implementation process is as follows:
when a patient who needs to be infused by using the infusion port is infused, the medical staff firstly tears the anti-sticking paper adhered to the adhesive, then aligns the needle body 12 to the infusion port, and then uses the adhesive to adhere the needle seat 1 to the skin of the patient. Then the pressing cap 5 is pressed, the guide strip 501 on the pressing cap 5 slides along the guide groove 401 on the inner wall of the sleeve 4, so that the pressing cap 5 slides downwards, the locking rod 6, the push rod 7 and the connecting cylinder 8 are pushed downwards, and the needle body 12 is pressed downwards, so that the needle body 12 enters the transfusion port; when the pressing cap 5 is released, the reset spring 10 pushes the pressing cap 5 and the locking rod 6 to lift, the meshing teeth 601 are clamped at the saw teeth 402 of the sleeve 4, so that the locking rod 6 is prevented from lifting continuously, the needle body 12 is fixed in the transfusion port, and the transparent protective sleeve 11 is contracted between the bottom of the horizontal part 101 and the skin of a patient; after the needle body 12 is fixed in the transfusion port, liquid enters the cavity of the vertical part 102 through the cavity of the horizontal part 101, then enters the connecting cylinder 8 from the strip-shaped through groove 801 on the connecting cylinder 8, and finally enters the patient from the needle body 12; when the needle body 12 is required to be pulled out after transfusion is finished, the pressing cap 5 is only required to be pressed again, the pressing cap 5 slides downwards along the inner wall of the sleeve 4, when the pressing cap 5 slides to the edge of the sawtooth 402 of the sleeve 4, the rotating teeth 502 are matched with the meshing teeth 601 so as to push the locking rod 6, the push rod 7 and the connecting cylinder 8 downwards, and at the moment, the locking rod 6 rotates under the matching of the rotating teeth 502 and the meshing teeth 601 so that the meshing teeth 601 are aligned with the guide groove 401 on the sleeve 4, the pressing cap 5 is loosened, the reset spring 10 pushes the pressing cap 5 and the locking rod 6 to rise, and when the pressing cap 5 and the locking rod 6 rise to the sawtooth 402 of the sleeve 4, the guide strip 501 and the meshing teeth 601 on the pressing cap 5 continuously slide upwards along the guide groove 401 so as to drive the needle body 12 to be pulled out of the transfusion (the moving process of each part of the pressing part is the same as the pressing structure of the pressing rotary pen in the prior art, for example, too many details are not repeated here).
Example two
As shown in fig. 6 and 7, the difference between the present embodiment and the first embodiment is that the pressing member in the present embodiment includes a pressing rod 14, a button 13 slidably connected to the top of the pressing rod 14, and a liquid inlet tube 16 welded or adhered to the bottom of the pressing rod 14. Specifically, the bottom of the button 13 is provided with a transverse chute 1301, side grooves 1302 are formed in the side walls of two sides of the transverse chute 1301 of the button 13, a side protrusion 1401 extending into the side grooves 1302 is arranged at the top of the pressing rod 14, and the sliding connection between the button 13 and the pressing rod 14 can be realized by matching the side protrusion 1401 at the top of the pressing rod 14 with the side grooves 1302 on the side walls of two sides of the transverse chute 1301 of the bottom of the button 13. The periphery of the side wall of the liquid inlet cylinder 16 is provided with a strip-shaped through groove 801, and the outer diameter of the connecting cylinder 8 is smaller than the inner diameter of the cavity on the vertical part 102; the bottom of the liquid inlet cylinder 16 is welded with a liquid inlet cylinder rubber gasket 17, a perforation is arranged on the liquid inlet cylinder rubber gasket 17, and the needle body 12 is adhered in the perforation of the liquid inlet cylinder rubber gasket 17. The limiting block 15 comprises a limiting block 15 welded at the top of the horizontal part 101 and positioned at the left side of the button 13, a clamping groove 1501 is formed in one side, close to the button 13, of the limiting block 15, and one end, close to the limiting block 15, of the button 13 can be clamped into the clamping groove 1501.
During the use, medical personnel presses button 13 downwards for needle 12 enters into the transfusion harbor, then slides button 13 along pressing bar 14 upside protruding 1401 to stopper 15's direction, in the draw-in groove 1501 of stopper 15 is blocked to the tip of button 13, makes reset spring 10 unable to jack up pressing bar 14 and button 13 after loosening button 13, and then makes this needle 12 can not be pulled out the transfusion harbor. When the needle body 12 needs to be taken down after the transfusion is finished, medical staff only need to slide the button 13 in the direction away from the limiting block 15, so that the end part of the button 13 is not clamped in the clamping groove 1501 of the limiting block 15 any more, the pressing rod 14 and the button 13 automatically move upwards under the action of the reset spring 10, and the needle body 12 is driven to pull out the transfusion port, so that the transfusion system is very convenient.
The above is merely an embodiment of the present utility model, and the present utility model is not limited to the field of the present embodiment, but the specific structure and characteristics of the present utility model are not described in detail. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (9)
1. A safety butterfly needle for preventing accidental injury, which is characterized in that: the needle comprises a needle seat and a needle body fixedly connected with the needle seat, wherein a cavity is arranged in the needle seat, the needle seat comprises a horizontal part and a vertical part, and the needle body is connected to the bottom of the vertical part in a penetrating way; the top of one end of the horizontal part, which is close to the vertical part, is provided with a pressing part, and the pressing part comprises a pressing piece, a resetting piece and a limiting piece; the top of the needle body is fixedly connected to the bottom of the pressing piece.
2. A atraumatic safety butterfly needle as set forth in claim 1, wherein: the utility model discloses a needle body, including vertical portion, transparent lag, the transparent lag is fixedly connected with deformable on the vertical portion outer wall, the one end that vertical portion was kept away from to transparent lag is equipped with the opening of cross, and transparent lag is including the needle body cover.
3. A atraumatic safety butterfly needle as set forth in claim 2, wherein: the horizontal part is fixedly connected with a needle wing; the bottom of the needle wing is connected with a gasket; the bottom of the pad is provided with an adhesive layer.
4. A atraumatic safety butterfly needle as set forth in claim 3, wherein: the cushion is in particular a foam having elasticity.
5. A atraumatic safety butterfly needle as set forth in claim 4, wherein: the pressing piece comprises a pressing cap and a locking rod, the bottom of the pressing cap is provided with rotary teeth, and the side wall of the pressing cap is provided with a guide strip; the locking rod is provided with a meshing tooth matched with the rotating tooth, and one end of the locking rod far away from the meshing tooth is inserted into the pressing cap so that the rotating tooth is contacted with the meshing tooth; the pressing piece further comprises a push rod arranged in the vertical part and a connecting cylinder fixedly connected to the bottom of the push rod, a plurality of through grooves are formed in the connecting cylinder, a connecting cylinder rubber pad is fixedly connected to the bottom of the connecting cylinder, and the needle body is fixedly connected to the connecting cylinder rubber pad; the limiting piece comprises a sleeve fixedly connected to the top of the horizontal part, the pressing cap and the lower end of the locking rod are both positioned in the sleeve, a guide groove is formed in the inner wall of the sleeve, and saw teeth matched with the meshing teeth are formed in the bottom of the groove wall of the guide groove; the reset piece is positioned between the bottom of the rubber pad of the connecting cylinder and the inner wall of the bottom of the vertical part.
6. A atraumatic safety butterfly needle as set forth in claim 4, wherein: the pressing piece comprises a pressing rod, a button which is connected to the top of the pressing rod in a sliding manner and a liquid inlet barrel which is fixedly connected to the bottom of the pressing rod, a plurality of through grooves are formed in the liquid inlet barrel, a liquid inlet barrel rubber pad is fixedly connected to the bottom of the liquid inlet barrel, and the needle body is fixedly connected to the liquid inlet barrel rubber pad; the limiting piece comprises a limiting block fixedly connected to the top of the horizontal part, and a clamping groove capable of clamping in the button is formed in the limiting block.
7. A atraumatic safety butterfly needle as set forth in any one of claims 5 or 6, wherein: the reset piece is specifically a reset spring.
8. A atraumatic safety butterfly needle as set forth in claim 5, wherein: the external diameter of the connecting cylinder is smaller than the internal diameter of the inner cavity of the vertical part, and the through groove is arranged on the side wall of the connecting cylinder.
9. A atraumatic safety butterfly needle as set forth in claim 6, wherein: the outer diameter of the liquid inlet cylinder is smaller than the inner diameter of the inner cavity of the vertical part, and the through groove is formed in the side wall of the liquid inlet cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222626974.3U CN219071581U (en) | 2022-09-30 | 2022-09-30 | Safety butterfly needle for preventing accidental injury |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222626974.3U CN219071581U (en) | 2022-09-30 | 2022-09-30 | Safety butterfly needle for preventing accidental injury |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219071581U true CN219071581U (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222626974.3U Active CN219071581U (en) | 2022-09-30 | 2022-09-30 | Safety butterfly needle for preventing accidental injury |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219071581U (en) |
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2022
- 2022-09-30 CN CN202222626974.3U patent/CN219071581U/en active Active
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