CN113893413A - Remaining needle with blood blocking and acupuncture preventing functions - Google Patents
Remaining needle with blood blocking and acupuncture preventing functions Download PDFInfo
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- CN113893413A CN113893413A CN202111015289.0A CN202111015289A CN113893413A CN 113893413 A CN113893413 A CN 113893413A CN 202111015289 A CN202111015289 A CN 202111015289A CN 113893413 A CN113893413 A CN 113893413A
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- needle
- valve core
- steel needle
- seat
- elastic sheet
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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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a remaining needle with blood blocking and acupuncture preventing functions, which comprises a catheter seat and a steel needle seat connected to the catheter seat, wherein a steel needle is fixed on the steel needle seat; a valve core pipe and a plastic valve plate are arranged in the catheter seat, and a pipe cavity of the valve core pipe is communicated with a liquid inlet flow passage in the catheter seat to form a liquid channel; one end of the valve core pipe is sealed by the plastic valve plate, so that the liquid channel is sealed; at least one of the valve core pipe and the plastic valve plate is arranged in the conduit seat in a sliding manner; when the valve core pipe and the plastic valve plate move relatively, the valve core pipe pierces the plastic valve plate and leads the liquid channel to be conducted; a cavity is formed between the catheter seat and the steel needle seat, a sliding lock is arranged in the cavity and is arranged on the steel needle in a sliding mode, and an elastic sheet is further arranged in the sliding lock. The indwelling needle has the advantages of simple structure, convenient and practical clinical operation, and has the functions of blood blocking and needle puncture prevention, thereby avoiding blood-borne pollution and accidental puncture of the needle tip.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an indwelling needle with blood blocking and needle prick preventing functions.
Background
Intravenous infusion is the most common medical treatment means, and the basic principle is to input liquid into the venous blood vessel of a human body through an infusion pipeline and a hollow needle. When infusion is started, the hollow needle needs to be punctured into a vein. The puncture process needs to be repeated every time due to the need of repeated infusion.
In order to protect the blood vessel, the blood vessel injury and the mental pain of the patient caused by repeated puncture are reduced; the patient can move and carry the infusion bag easily, and the infusion leakage is reduced; the vein channel is kept smooth at any time, so that the medicine is convenient to be administered in time and emergently rescued; the workload of nurses is reduced, and the working efficiency is improved. Therefore, indwelling needles have been widely used clinically in recent years.
The traditional pen-holder type indwelling needle has two defects in structure, and is very inconvenient in clinical practice.
1. After the traditional pen-holder type indwelling needle successfully punctures the catheter and enters the blood vessel, because the infusion interface at the tail end of the catheter is in an open state, a medical worker must rapidly draw out the puncture steel needle and simultaneously press the puncture part with the other hand after the puncture is successful, the aim is to ensure that the catheter detained in the blood vessel is temporarily collapsed and closed, and the problem that blood flows out from the open infusion interface of the catheter to cause blood-borne pollution when the medical worker does not reach to connect the infusion interface at the tail end of the catheter with other infusion devices due to the blood pressure of a human body is avoided;
2. after the medical staff successfully puncture, when the puncture steel needle is drawn out, the steel needle tip is exposed outside, which is very easy to puncture the staff and cause cross infection.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the indwelling needle with the blood blocking and acupuncture preventing functions, the indwelling needle is simple in structure, convenient and practical in clinical operation, has the blood blocking and acupuncture preventing functions, and avoids blood-borne pollution and accidental puncture of a needle point.
In order to achieve the purpose, the invention provides the following technical scheme: the indwelling needle with the blood blocking and acupuncture preventing functions comprises a catheter seat and a steel needle seat connected to the catheter seat, wherein a steel needle is fixed on the steel needle seat; a valve core pipe and a plastic valve plate are arranged in the catheter seat, and a pipe cavity of the valve core pipe is communicated with a liquid inlet flow passage in the catheter seat to form a liquid channel;
one end of the valve core pipe is sealed by the plastic valve plate, so that the liquid channel is sealed; at least one of the valve core pipe and the plastic valve plate is arranged in the conduit seat in a sliding manner; when the valve core pipe and the plastic valve plate move relatively, the valve core pipe pierces the plastic valve plate and leads the liquid channel to be conducted;
a cavity is formed between the catheter seat and the steel needle seat, a sliding lock is arranged in the cavity and is arranged on the steel needle in a sliding mode, an elastic sheet is further arranged in the sliding lock, and the elastic sheet comprises an elastic sheet main body and an elastic sheet bending part which is integrally formed with the elastic sheet main body;
the elastic piece bending part is also provided with a shoulder, a clamping groove is formed in the position, located on the shoulder, of the catheter seat, the shoulder is embedded into the clamping groove, and then the sliding lock is limited on the catheter seat;
when the steel needle penetrates through the elastic sheet, the bending part of the elastic sheet deforms and abuts against the steel needle; when the needle point of the steel needle slides into the sliding lock, the bent part of the elastic sheet resets and prevents the steel needle from sliding forwards relative to the sliding lock, and meanwhile, the shoulder is separated from the clamping groove;
the elastic sheet main body is provided with a through hole, and the steel needle penetrates through the through hole; the steel needle is further provided with a limiting part, and when the needle tip of the steel needle slides into the sliding lock, the limiting part is limited by the through hole in the elastic sheet so as to prevent the steel needle from sliding backwards relative to the sliding lock.
On one hand, in the use process of the indwelling needle, the shoulder on the elastic sheet is embedded into the clamping groove on the catheter seat, so that the sliding lock is temporarily clamped with the catheter seat.
When the puncture is successful, three stepping contacts will be activated when the steel needle is withdrawn:
contact 1: when the steel needle is drawn back to enable the bent part of the elastic sheet to be separated from the support of the steel needle, the bent part of the elastic sheet is excited to reset, the bent part of the elastic sheet is reset and is arranged in front of the steel needle, the steel needle is prevented from sliding forwards relative to the sliding lock, and the needle point is hidden in the sliding lock;
contact 2: when the steel needle is withdrawn to separate the bending part of the elastic sheet from the support of the steel needle, the bending part of the elastic sheet is excited to reset, and the shoulder on the elastic sheet is separated from the clamping groove on the catheter seat to separate the sliding lock from the catheter seat;
contact 3: when the limiting part on the steel needle is interfered by the through hole of the sliding lock, the sliding lock and the steel needle are pulled out of the catheter seat together, and at the moment, the sliding lock is locked at the position of the needle point to shield the exposure of the needle point.
On the other hand, when the medical care personnel successfully puncture and pull out the steel needle, the plastic valve plate seals the valve core tube, the blood return is blocked at the front end of the catheter seat, and the back end of the catheter seat has no blood return to flow out, thereby avoiding the blood source pollution. When the infusion device is assembled to be connected with the catheter base, the luer cone head on the infusion device pushes the valve core pipe or the plastic valve plate to move, even if the valve core pipe and the plastic valve plate move relatively, the valve core pipe penetrates through the plastic valve plate and conducts the liquid channel, and therefore the infusion channel between the infusion device and the catheter base is established.
The indwelling needle has the advantages of simple structure, convenient and practical clinical operation, and has the functions of blood blocking and needle puncture prevention, thereby avoiding blood-borne pollution and accidental puncture of the needle tip.
Preferably, a cavity is arranged in the conduit seat, the valve core pipe is fixed in the cavity, and a pipe cavity of the valve core pipe is communicated with a liquid inlet flow passage in the conduit seat to form a liquid channel; the cavity is internally provided with the plastic valve plate in a sliding mode and is positioned behind the valve core pipe, and the valve core pipe is sealed by the plastic valve plate.
Preferably, a cavity is arranged in the catheter seat, the valve core pipe is arranged in the cavity in a sliding mode, the plastic valve plate is fixed in the cavity in front of the valve core pipe, and the valve core pipe is sealed by the plastic valve plate.
Preferably, the shoulder is formed by bending the elastic bending part at the position of the clamping groove.
Preferably, the position of the steel needle at the position of the limiting part is flattened to form the limiting part.
Preferably, the elastic sheet main body is sleeved on the steel needle.
Preferably, the center of the plastic valve plate is punctured.
Preferably, the pipe wall of the rear part of the valve core pipe is in a sawtooth shape. The root part is provided with a liquid return groove,
preferably, the plastic valve plate comprises a valve plate main body and a convex ring integrally formed with the valve plate main body, and the convex ring is sleeved on the valve core pipe.
Preferably, the outer peripheral wall of the valve plate main body is attached to the inner wall of the cavity.
In conclusion, the invention has the following beneficial effects:
1. the remaining needle has the functions of blood blocking and needle prick prevention, avoids blood-borne pollution and avoids accidental pricking of a needle tip;
2. the indwelling needle has simple structure and convenient and practical clinical operation.
Drawings
FIG. 1 is a schematic view showing the structure of an indwelling needle;
FIG. 2 is a schematic view of the catheter hub separated from the steel needle hub;
FIG. 3 is a schematic view of the structure of the steel needle with the needle head hidden in the sliding lock;
FIG. 4 is a schematic view of a catheter hub;
fig. 5 is a schematic diagram of the catheter hub connected to the infusion set.
Reference numerals: 1. a catheter hub; 2. a steel needle seat; 3. an outer needle tube; 4. a sheath; 5. a steel needle; 6. a valve core tube; 7. a plastic valve plate; 8. a slide lock; 9. a spring plate; 10. a spring plate main body; 11. a shoulder; 12. a card slot; 13. a through hole; 14. an infusion device; 15. a valve plate main body; 16. a convex ring; 17. a first bending portion; 18. a second bending portion; 19. a limiting part.
Detailed Description
The invention is further described with reference to the accompanying drawings.
The embodiment discloses an indwelling needle with blood blocking and acupuncture preventing functions, as shown in fig. 1-5, comprising a catheter holder 1 and a steel needle holder 2 connected to the catheter holder 1, wherein an outer needle tube 3 is fixed at the front end of the catheter holder 1, a sheath 4 is sleeved on the catheter holder 1, and a steel needle 5 is fixed on the steel needle holder 2; a valve core pipe 6 and a plastic valve plate 7 are arranged in the catheter seat 1, and a pipe cavity of the valve core pipe 6 is communicated with a liquid inlet flow passage in the catheter seat 1 to form a liquid channel; one end of the valve core pipe 6 is sealed by a plastic valve plate 7, so that a liquid channel is sealed; at least one of the valve core tube 6 and the plastic valve plate 7 is arranged in the conduit seat 1 in a sliding manner, and the root of the valve core tube is provided with a liquid return groove, so that a dead space can be prevented from being formed between the periphery of the valve core tube and the plastic valve plate; when the valve core tube 6 and the plastic valve plate 7 move relatively, the valve core tube 6 pierces the plastic valve plate 7 and conducts the liquid channel; a cavity is formed between the catheter seat 1 and the steel needle seat 2, a sliding lock 8 is arranged in the cavity, the sliding lock 8 is arranged on the steel needle 5 in a sliding mode, a groove is formed in the sliding lock 8, an elastic sheet 9 is further arranged in the sliding lock 8, namely the elastic sheet 9 is installed in the groove, the elastic sheet 9 comprises an elastic sheet main body 10 and an elastic sheet bending portion which is integrally formed with the elastic sheet main body 10, and as an implementation mode, the elastic sheet main body 10 is sleeved on the steel needle 5; the elastic sheet bending part is also provided with a shoulder 11, a clamping groove 12 is formed in the position, located on the shoulder 11, of the catheter seat 1, the shoulder 11 is embedded into the clamping groove 12, and then the sliding lock 8 is limited on the catheter seat 1, and as an implementation mode, the position, located on the clamping groove 12, of the elastic bending part is bent towards the direction of the clamping groove 12 to form the shoulder 11; when the steel needle 5 penetrates through the elastic sheet 9, the bending part of the elastic sheet is deformed and is abutted against the steel needle 5; when the needle point of the steel needle 5 slides into the sliding lock 8, the bent part of the elastic sheet resets and prevents the steel needle 5 from sliding forwards relative to the sliding lock 8, and meanwhile, the shoulder 11 is separated from the clamping groove 12; the elastic sheet main body 10 is provided with a through hole 13, and the steel needle 5 penetrates through the through hole 13; the steel needle 5 is also provided with a limiting part 19, when the needle tip of the steel needle 5 slides into the sliding lock 8, the limiting part 19 is limited by the through hole 13 on the elastic sheet (9) so as to prevent the steel needle 5 from sliding backwards relative to the sliding lock 8; in one embodiment, the steel needle 5 is flattened at the position of the position-limiting part 19 to form a position-limiting part, i.e. the size of the flattened position on the steel needle 5 is larger than the size of the through hole 13.
On one hand, in the use process of the indwelling needle, the shoulder 11 on the elastic sheet 9 is embedded into the clamping groove 12 on the catheter base 1, so that the sliding lock 8 is temporarily clamped with the catheter base 1.
When the puncture is successful, three stepped contacts will be activated when the steel needle 5 is withdrawn:
contact 1: when the steel needle 5 is withdrawn to separate the bent part of the elastic sheet from the support of the steel needle 5, the reset of the bent part of the elastic sheet is excited, the reset of the bent part of the elastic sheet is arranged in front of the steel needle 5, the forward sliding of the steel needle 5 relative to the sliding lock 8 is prevented, and the needle point is hidden in the sliding lock 8;
contact 2: when the steel needle 5 is withdrawn to separate the bending part of the elastic sheet from the support of the steel needle 5, the bending part of the elastic sheet is stimulated to reset, and the shoulder 11 on the elastic sheet 9 is separated from the clamping groove 12 on the catheter seat 1, so that the sliding lock 8 is separated from the catheter seat 1;
contact 3: when the limiting part 19 on the steel needle 5 is interfered by the through hole 13, the sliding lock 8 and the steel needle 5 are pulled out of the catheter base 1 together, and at the moment, the sliding lock 8 is locked at the needle point position to shield the exposed needle point.
On the other hand, when the medical staff successfully punctures and pulls out the steel needle 5, the plastic valve plate 7 seals the valve core tube 6, the blood return is blocked at the front end of the catheter seat 1, and no blood return flows out of the rear end of the catheter seat 1, thereby avoiding the blood source pollution. When the infusion set 14 is assembled to connect with the catheter hub 1, the luer taper on the infusion set 14 pushes the valve core tube 6 or the plastic valve sheet 7 to move, even if the two move relatively, the valve core tube 6 penetrates the plastic valve sheet 7 and conducts the liquid channel, so that the infusion channel between the infusion set 14 and the catheter hub 1 is established.
The indwelling needle has the advantages of simple structure, convenient and practical clinical operation, and has the functions of blood blocking and needle puncture prevention, thereby avoiding blood-borne pollution and accidental puncture of the needle tip.
In some embodiments, a cavity is arranged in the catheter base 1, a valve core tube 6 is fixed in the cavity, and a tube cavity of the valve core tube 6 is communicated with a liquid inlet flow channel in the catheter base 1 and forms a liquid channel; the plastic valve plate 7 is arranged in the cavity behind the valve core tube 6 in a sliding mode, and the valve core tube 6 is sealed by the plastic valve plate 7. When the medical care personnel successfully puncture and pull out the steel needle 5, the plastic valve plate 7 seals the valve core tube 6, the blood return is blocked at the front end of the catheter seat 1, and the back end of the catheter seat 1 has no blood return to flow out, thereby avoiding the blood source pollution. When the infusion set 14 is assembled to connect with the catheter hub 1, as shown in fig. 5, the luer taper on the infusion set 14 pushes the plastic valve flap 7 forward, and the valve core tube 6 penetrates the plastic valve flap 7 and conducts the fluid passage, thereby establishing an infusion passage between the infusion set 14 and the catheter hub 1.
In other embodiments, a cavity is provided in the catheter base 1, the valve core tube 6 is slidably disposed in the cavity, the plastic valve sheet 7 is fixed in the cavity in front of the valve core tube 6, and the valve core tube 6 is sealed by the plastic valve sheet 7. When the medical care personnel successfully puncture and pull out the steel needle 5, the plastic valve plate 7 seals the valve core tube 6, the blood return is blocked at the front end of the catheter seat 1, and the back end of the catheter seat 1 has no blood return to flow out, thereby avoiding the blood source pollution. When the infusion set 14 is assembled to connect with the catheter hub 1, the luer taper on the infusion set 14 pushes the valve core tube 6 forward, and the valve core tube 6 penetrates the plastic valve sheet 7 and conducts the liquid passage, thereby establishing an infusion passage between the infusion set 14 and the catheter hub 1.
In the above technical solution, preferably, the center of the plastic valve plate 7 is punctured; thus, the steel needle 5 and the valve core tube 6 are conveniently punctured. Further, the pipe wall of the rear part of the valve core pipe 6 is in a sawtooth shape. Therefore, the valve core pipe 6 and the plastic valve plate 7 can be connected conveniently.
The plastic valve plate 7 includes a valve plate main body 15 and a convex ring 16 integrally formed with the valve plate main body 15, and the convex ring 16 is sleeved on the valve core tube 6. In addition, the outer peripheral wall of the valve sheet main body 15 is attached to the inner wall of the chamber so that liquid does not leak between the two.
In the above technical solution, as an implementation manner, the bending portion of the elastic sheet includes a first bending portion 17 and a second bending portion 18 integrally formed with the first bending portion 17, and when the steel needle 5 penetrates through the sliding lock 8, a free end of the second bending portion abuts against the steel needle 5; the second bend 18 is positioned in front of the needle tip when the needle tip of the steel needle 5 slides into the slide lock 8.
In the present invention, it should be understood that the terms "front", "back", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and thus, should not be construed as limiting the present invention.
The directions given in the present embodiment are merely for convenience of describing positional relationships between the respective members and the relationship of fitting with each other. The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The indwelling needle with the functions of blood blocking and acupuncture prevention comprises a catheter seat (1) and a steel needle seat (2) connected to the catheter seat (1), wherein a steel needle (5) is fixed on the steel needle seat (2); the method is characterized in that: a valve core pipe (6) and a plastic valve plate (7) are arranged in the catheter seat (1), and a pipe cavity of the valve core pipe (6) is communicated with a liquid inlet flow channel in the catheter seat (1) to form a liquid channel;
one end of the valve core pipe (6) is sealed by the plastic valve plate (7) so as to seal the liquid channel; at least one of the valve core tube (6) and the plastic valve plate (7) is arranged in the conduit seat (1) in a sliding manner; when the valve core pipe (6) and the plastic valve plate (7) move relatively, the valve core pipe (6) pierces the plastic valve plate (7) and leads the liquid channel to be conducted;
a cavity is formed between the catheter seat (1) and the steel needle seat (2), a sliding lock (8) is arranged in the cavity, the sliding lock (8) is arranged on the steel needle (5) in a sliding mode, an elastic sheet (9) is further arranged in the sliding lock (8), and the elastic sheet (9) comprises an elastic sheet main body (10) and an elastic sheet bending portion which is integrally formed with the elastic sheet main body (10);
the elastic piece bending part is also provided with a shoulder (11), a clamping groove (12) is formed in the position, located on the shoulder (11), of the catheter seat (1), the shoulder (11) is embedded into the clamping groove (12), and then the sliding lock (8) is limited on the catheter seat (1);
when the steel needle (5) penetrates through the elastic sheet (9), the bending part of the elastic sheet is deformed and is abutted against the steel needle (5); when the needle point of the steel needle (5) slides into the sliding lock (8), the bent part of the elastic sheet resets and prevents the steel needle (5) from sliding forwards relative to the sliding lock (8), and meanwhile, the shoulder (11) is separated from the clamping groove (12);
the elastic sheet main body (10) is provided with a through hole (13), and the steel needle (5) penetrates through the through hole (13); the steel needle (5) is further provided with a limiting part (19), and when the needle tip of the steel needle (5) slides into the sliding lock (8), the limiting part (19) is limited by the through hole (13) in the elastic sheet (9) so as to prevent the steel needle (5) from sliding backwards relative to the sliding lock (8).
2. The indwelling needle with blood blocking and needle stick prevention functions according to claim 1, wherein: a cavity is arranged in the catheter seat (1), the valve core tube (6) is fixed in the cavity, and a tube cavity of the valve core tube (6) is communicated with a liquid inlet flow channel in the catheter seat (1) to form a liquid channel; the plastic valve plate (7) is arranged in the cavity behind the valve core pipe (6) in a sliding mode, and the valve core pipe (6) is sealed by the plastic valve plate (7).
3. The indwelling needle with blood blocking and needle stick prevention functions according to claim 1, wherein: the novel valve core is characterized in that a cavity is arranged in the catheter base (1), the valve core tube (6) is arranged in the cavity in a sliding mode, the plastic valve block (7) is fixed in the cavity in front of the valve core tube (6), and the valve core tube (6) is sealed by the plastic valve block (7).
4. The indwelling needle with blood blocking and needle stick prevention functions according to claim 2 or 3, wherein: the shoulder (11) is formed by bending the part of the elastic sheet bending part, which is positioned on the clamping groove (12).
5. The indwelling needle with blood blocking and needle stick prevention functions according to claim 2 or 3, wherein: the position of the steel needle (5) on the limiting part (19) is flattened to form the limiting part.
6. The indwelling needle with blood blocking and needle stick prevention functions according to claim 2 or 3, wherein: the elastic sheet main body (10) is sleeved on the steel needle (5).
7. The indwelling needle with blood blocking and needle stick prevention functions according to claim 1, wherein: the center of the plastic valve plate (7) is punctured.
8. The indwelling needle with blood blocking and needle stick prevention functions according to claim 1, wherein: the pipe wall of the rear part of the valve core pipe (6) is in a sawtooth shape.
9. The indwelling needle with blood blocking and needle stick prevention functions according to claim 1, wherein: the plastic valve plate (7) comprises a valve plate main body (15) and a convex ring (16) integrally formed with the valve plate main body (15), and the convex ring (16) is sleeved on the valve core pipe (6).
10. The indwelling needle with blood blocking and needle stick prevention functions according to claim 1, wherein: the periphery wall of valve block main part (15) laminates with the inner wall of cavity mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015289.0A CN113893413A (en) | 2021-08-31 | 2021-08-31 | Remaining needle with blood blocking and acupuncture preventing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015289.0A CN113893413A (en) | 2021-08-31 | 2021-08-31 | Remaining needle with blood blocking and acupuncture preventing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113893413A true CN113893413A (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111015289.0A Pending CN113893413A (en) | 2021-08-31 | 2021-08-31 | Remaining needle with blood blocking and acupuncture preventing functions |
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| Country | Link |
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| CN (1) | CN113893413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870208A (en) * | 2022-07-12 | 2022-08-09 | 山东安得医疗用品股份有限公司 | Intubation device integrating catheter, guide wire and puncture needle |
-
2021
- 2021-08-31 CN CN202111015289.0A patent/CN113893413A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870208A (en) * | 2022-07-12 | 2022-08-09 | 山东安得医疗用品股份有限公司 | Intubation device integrating catheter, guide wire and puncture needle |
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