Femoral arteriovenous puncture needle
By designing a femoral artery and vein puncture needle, the problem of blood spurting out and impacting the guidewire during arterial puncture was solved, achieving easy guidewire insertion and accurate puncture. It is suitable for femoral artery or vein puncture operations, improving the safety and efficiency of vascular interventional therapy.
Patent Information
- Application Number
- CN202422861077.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In existing vascular interventional treatments, the blood flow ejected during arterial puncture impacts the guidewire, making it difficult to insert the guidewire. Furthermore, high-risk puncture and catheterization procedures require rapid and accurate puncture operations.
A femoral artery and vein puncture needle was designed, comprising a puncture needle head and a syringe. The syringe contains a piston plate and a valve stem. The puncture needle head has a drainage hole on its tube wall. The piston plate can be used for aspiration verification during vein puncture. The guidewire through hole facilitates guidewire insertion.
It avoids excessive blood ejection pressure during arterial puncture, facilitates guidewire insertion, verifies successful puncture during venous puncture, and provides a convenient operating handle, thus improving the accuracy and safety of puncture.
Smart Images
Figure CN223746441U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical nursing technical field especially femoral artery and vein puncture needle. BACKGROUND
[0002] The existing blood vessel intervention treatment needs to utilize puncture needle to first puncture into the artery and vein blood vessel of patient, then places guide wire into the artery and vein blood vessel of patient, and under the observation of image equipment, next step diagnosis and treatment are carried out, and in the high risk artery and vein puncture catheterization operation, puncture to blood vessel needs to be carried out quickly and accurately to guarantee subsequent rescue. SUMMARY
[0003] The utility model discloses a puncture needle which can be applied to artery and vein puncture operation.
[0004] To achieve the above object, the utility model provides the following technical scheme: femoral artery and vein puncture needle, including puncture needle head and the needle cylinder that is located puncture needle head rear side and puncture needle head inner chamber intercommunication, the needle cylinder is built -in piston piece, the piston piece rear -fixed has the valve stem that protrudes needle cylinder, the valve stem and piston piece are penetrated and the through -hole that the outside guide wire is worn and enters, the puncture needle head is fixed in the front end of needle cylinder, and the pipe wall on one end that puncture needle head is located in needle cylinder has drainage fine hole.
[0005] Preferably, the one end of the needle cylinder towards the puncture needle head has the communication connector fixed to the outside of the puncture needle head, the front end of the needle cylinder has the convex thread pipe, and the communication connector is threadedly connected to the outside of the thread pipe.
[0006] Preferably, the front end of the piston piece is in the form of a convex cone, the through-hole is located at the center of the piston piece, and the through-hole corresponds to the inner cavity of the puncture needle head.
[0007] Preferably, the communication connector extends symmetrically on both sides with the sheet-shaped handle.
[0008] Preferably, the valve stem is fixed with a push plate at the end, the push plate has an opening communicating with the through-hole, the opening is closed with a buckle cover, and the buckle cover is matched with the opening through buckling.
[0009] Preferably, the drainage fine hole has a plurality of.
[0010] The utility model has the following beneficial effects:
[0011] (1) the utility model discloses a puncture needle can adapt to femoral artery or venous puncture, if carrying out arterial puncture utilizes the drainage fine hole that puncture needle head has on the pipe wall of one end in needle cylinder can guide blood from drainage fine hole, avoids the opening pressure of needle head one end in needle cylinder to be too big and leads to the difficulty of guide wire and is inserted, if carrying out venous puncture, then can utilize the piston sheet in needle cylinder to suck and verify whether puncture succeeds or not.
[0012] (2) in addition, the front end of the piston sheet in the utility model is convex conical, the through hole is located at the center of the piston sheet, and the through hole corresponds to the inner cavity of the puncture needle head, which can improve the centering ability of the guide wire.
[0013] (3) the two sides of the communication connector extend the symmetrically arranged sheet-shaped handle, which can assist medical staff in holding during the puncture process to facilitate operation. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the whole structure schematic diagram of femoral vein puncture needle of the utility model embodiment;
[0015] Figure 2 It is the puncture needle head structure schematic diagram of the utility model;
[0016] Figure 3 It is the valve rod and guide wire structure schematic diagram of the utility model;
[0017] Figure 4 It is the buckle cover partial structure schematic diagram of the utility model;
[0018] In the drawing, 10-puncture needle head, 100-guide wire, 101-drainage fine hole, 110-communication connector, 20-needle cylinder, 201-through hole, 210-piston sheet, 220-valve rod, 230-threaded pipe, 240-pushing plate, 241-buckle cover, 30-sheet-shaped handle. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0020] REFERENCE Figures 1-3The femoral artery and vein puncture needle comprises a puncture needle head 10 and a needle cylinder 20 which is connected with the inner cavity of the puncture needle head at the rear side of the puncture needle head, the needle cylinder 20 is internally provided with a piston sheet 210, the rear part of the piston sheet 210 is fixedly provided with a valve rod 220, the valve rod 220 and the piston sheet 210 are penetrated by a through hole 201 for the external guide wire to pass through, the puncture needle head 10 is fixedly arranged at the front end of the needle cylinder 20, and the puncture needle head 10 is provided with drainage fine holes 101 on the pipe wall of one end of the puncture needle head 10 which is arranged in the needle cylinder 20.
[0021] The puncture needle can adapt to femoral artery or vein puncture, if vein puncture is performed, the piston sheet 210 is used to move backward to form a vacuum, so that blood drawing is realized, and whether the puncture is successful or not can be verified by observing whether blood appears in the needle cylinder.
[0022] If artery puncture is performed, because the blood pressure of the artery blood itself is relatively high, the blood can enter the needle cylinder through the puncture needle head 10 after the puncture needle head is punctured, and because the puncture needle head 10 is provided with the drainage fine holes 101 at one end of the puncture needle head 10 which is arranged in the needle cylinder 20, the blood can enter the needle cylinder 20 from the drainage fine holes 101 on the pipe wall.
[0023] Compared with the prior art, the original puncture needle head is not provided with the drainage fine holes 101 on the pipe wall, the blood is directly sprayed out from the end of the puncture needle head 10 which is arranged in the needle cylinder 20, and the opening pressure of the puncture needle head 10 at one end of the puncture needle head 10 which is arranged in the needle cylinder 20 is too large, so that the guide wire 100 is difficult to be arranged.
[0024] The structure of the puncture needle head 10 of the utility model improves the opening pressure of the puncture needle head 10 at one end of the puncture needle head 10 which is arranged in the needle cylinder 20, and facilitates the arrangement operation of the guide wire 100.
[0025] In the embodiment, the drainage fine holes can be multiple.
[0026] In one embodiment of the utility model, one end of the needle cylinder 20 which faces the puncture needle head 10 is provided with a communication connector 110 which is fixedly arranged at the outside of the puncture needle head 10, the front end of the needle cylinder 20 is provided with a convex threaded pipe 230, the communication connector is screw-connected to the outside of the threaded pipe 230, and the middle part of the threaded pipe is provided with an insertion hole 220 for the needle head to be inserted.
[0027] During installation, the puncture needle head 10 is inserted into the insertion hole 220 and extends into the insertion hole 220, the puncture needle head 10 is attached to the outer periphery of the insertion hole 220, and the connection between the puncture needle head 10 and the needle cylinder 20 is realized by screw-connecting the communication connector 110 to the threaded pipe 230.
[0028] In the embodiment of the utility model, the front end of the puncture needle 10 has a sharp slope for piercing into blood vessels, the front end of the piston sheet 210 is convex and conical, the through hole is located at the center of the piston sheet 210, the through hole 201 corresponds to the setting of the puncture needle 10, so that the guide wire 100 is convenient to pass out from the through hole 201 and enter the inner cavity of the puncture needle 10, and it is not easy to coil in the needle cylinder 20.
[0029] The symmetrical sheet handles 30 are arranged on both sides of the communication joint, so that the sheet handles 30 are convenient to pinch during the puncture process and convenient to operate.
[0030] In the embodiment of the utility model, the valve rod tail end is fixed with a push plate 240, the push plate has an opening communicated with the through hole, the opening is closed with a buckle cover 241, the buckle cover 241 is matched with the opening through buckling, the buckle cover 241 is removed before the guide wire 100 is inserted, and then the guide wire 100 can be inserted.
[0031] Finally, it should be pointed out that: the above only for the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A femoral artery and vein puncture needle characterized by, The puncture needle and the needle cylinder which is in communication with the inner cavity of the puncture needle at the rear side of the puncture needle are included, the piston sheet is built-in the needle cylinder, the valve rod which extends out of the needle cylinder is fixed at the rear part of the piston sheet, the through hole which is used for the external guide wire to pass through is penetrated by the valve rod and the piston sheet, the puncture needle is fixed at the front end of the needle cylinder, the drainage fine hole is arranged on the tube wall of the end of the puncture needle which is located in the needle cylinder; The push plate is fixed at the end of the valve rod, the opening which is in communication with the through hole is arranged on the push plate, the buckle cover is closed at the opening, and the buckle cooperation is arranged between the buckle cover and the opening.
2. The femoral arteriovenous puncture needle of claim 1, wherein, The end of the needle cylinder which is towards the puncture needle has the communication connector which is fixed at the external part of the puncture needle, the front end of the needle cylinder has the convex thread tube, and the communication connector is threadedly connected at the external part of the thread tube.
3. The femoral arteriovenous puncture needle of claim 2, wherein, The front end of the piston sheet is in the convex conical shape, the through hole is located at the center of the piston sheet, and the through hole corresponds to the inner cavity of the puncture needle.
4. The femoral arteriovenous puncture needle of claim 2, wherein, The symmetrically arranged sheet-shaped handles are extended at the two sides of the communication connector.
5. The femoral artery and vein puncture needle according to claim 1 or 2, characterized by The drainage fine hole has a plurality.