Artery puncture needle structure for anesthesia
By introducing a core protection structure and an anticoagulant coating into the arterial puncture needle, the safety risks and blood clotting problems caused by repeated punctures are solved, thereby improving safety and stability.
Patent Information
- Application Number
- CN202520222598.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing arterial puncture needles require multiple punctures during surgery and lack protective structures, which could cause the needle core tip to prick medical staff, posing a safety risk.
A structure including a needle core protective sleeve, a sliding rod, a sliding hole, a conical rubber sleeve, and a limiting plate was designed. The needle core retraction protection is achieved through sliding fit, and an anticoagulant coating, a flip-up sealing plate, and a stainless steel spring are used to prevent blood clotting and backflow.
It effectively prevents needle core injuries to medical staff, improves safety, and prevents blood clotting and backflow, thus improving stability during use.
Smart Images
Figure CN223695974U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to puncture needle technical field, concretely relates to an artery puncture needle structure for anesthesia. BACKGROUND
[0002] Artery puncture needle is mainly used for artery blood vessel puncture and catheterization, and its functions are as follows: used for measuring arterial blood pressure, used for arterial blood pressure monitoring in anesthesia, monitoring patient's vital sign changes, adjusting the dosage of anesthetic and the application of muscle relaxant, the puncture needle is first inserted into the patient's artery at thirty degrees, the needle core is slightly longer than the sleeve, and the sleeve is pushed forward after bleeding, then the puncture needle is pulled out, and the sleeve is connected with the transducer.
[0003] Because the existing artery puncture needle needs to puncture the anesthetized patient multiple times during the operation, the needle core needs to be pulled out and replaced with a new puncture needle, but the needle core lacks a protection structure, so the long front end of the needle core may stab the medical staff, causing certain safety risk problems. INVENTION CONTENTS
[0004] The utility model provides an artery puncture needle structure for anesthesia to solve the problems in the above background technology.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme:
[0006] An artery puncture needle structure for anesthesia, comprising a puncture needle barrel, a puncture needle core mechanism is arranged on the front side of the puncture needle barrel, a sleeve mechanism is arranged on the outer wall of the puncture needle core mechanism, a fixed plate is fixedly installed on the outer wall front side of the puncture needle barrel, extension plates are fixedly installed on the left and right sides of the fixed plate, front and rear through sliding holes are formed in the two extension plates, sliding rods are slidably installed in the inner circles of the two sliding holes, connecting rods are fixedly installed on the opposite faces of the outer wall frontmost sides of the two sliding rods, and needle core protection barrels are fixedly installed at the opposite ends of the two connecting rods.
[0007] The further improvement of the utility model technical scheme is that limit discs are fixedly installed at the rear ends of the two sliding rods, and conical rubber sleeves are fixedly installed at the front ends of the two limit discs and are respectively sleeved on the outer wall last sides of the two sliding rods.
[0008] The further improvement of the utility model technical scheme is that a butt joint pipe penetrating the inner cavity of the puncture needle barrel is fixedly connected to the front end of the puncture needle barrel, the puncture needle core mechanism comprises a needle core butt joint pipe, a threaded pipe is fixedly connected to the rear side of the needle core butt joint pipe, the outer wall of the threaded pipe is screw-connected with the inner circle of the butt joint pipe, and a limit ring is fixedly installed on the outer wall front side of the threaded pipe.
[0009] The further improvement of the utility model technical scheme lies in that the front end of the needle core butt joint pipe is fixedly connected with a puncture needle core penetrating through the inner cavity thereof, and the inner wall of the puncture needle core is fixedly coated with an anticoagulant coating.
[0010] The further improvement of the utility model technical scheme lies in that the sleeve pipe mechanism comprises a blood temporary storage tank, the blood temporary storage tank is sleeved on the outer wall of the needle core protection cylinder, and the front end of the blood temporary storage tank is fixedly connected with a sleeve pipe penetrating through the inner cavity thereof, and the sleeve pipe is sleeved on the outer wall of the puncture needle core.
[0011] The further improvement of the utility model technical scheme lies in that the rear side of the inner wall of the blood temporary storage tank is fixedly installed with a sealing plate, the center of the sealing plate is provided with a needle core insertion hole penetrating through the front and rear sides, the front side of the sealing plate is movably installed with a turnover sealing plate, the rear side center of the turnover sealing plate is fixedly installed with a sealing plug, the sealing plug is clamped with the needle core insertion hole, the front side of the turnover sealing plate is fixedly installed with a stainless steel spring below, and the bottom end of the stainless steel spring is fixedly connected with the inner wall of the blood temporary storage tank.
[0012] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:
[0013] 1. The utility model provides an arterial puncture needle structure for anesthesia, through the mutual cooperation between the needle core protection cylinder, the sliding hole and the sliding rod, the overall puncture needle core mechanism can be retracted, the needle core protection cylinder gradually advances forward, when the advancement is impossible, the front end sharp part of the puncture needle core can be completely protected, the safety is improved.
[0014] 2. The utility model provides an arterial puncture needle structure for anesthesia, through the mutual cooperation between the anticoagulant coating, the turnover sealing plate, the sealing plug and the stainless steel spring, the puncture needle core can effectively prevent the inner wall blood coagulation blockage, when the sleeve pipe is pulled out, the blood reflux and overflow in the sleeve pipe can also be prevented, the docking of the transducer is convenient, and the stability of use is improved. DRAWINGS
[0015] Figure 1 It is the overall schematic view of the utility model structure;
[0016] Figure 2 It is the needle core protection cylinder schematic view of the utility model structure;
[0017] Figure 3 It is the utility model Figure 2 It is the enlarged schematic view of A place in the utility model;
[0018] Figure 4 It is the puncture needle core mechanism schematic view of the utility model structure;
[0019] Figure 5 The schematic diagram of the sleeve mechanism of the utility model structure.
[0020] In the figure: 1, puncture needle cylinder; 11, fixed plate; 12, extension plate; 121, sliding hole; 122, sliding rod; 1221, limiting disc; 1222, conical rubber sleeve; 123, connecting rod; 13, needle core protection cylinder; 14, butt joint pipe; 2, puncture needle core mechanism; 21, needle core butt joint pipe; 22, puncture needle core; 23, anticoagulant coating; 24, threaded pipe; 25, limiting ring; 3, sleeve mechanism; 31, blood temporary storage tank; 32, sleeve; 33, sealing plate; 34, needle core insertion hole; 35, overturning sealing plate; 36, sealing plug; 37, stainless steel spring. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0022] As shown in Figure 1 , Figure 2 , Figure 3 The utility model provides an artery puncture needle structure for anesthesia, including puncture needle cylinder 1, the front side of puncture needle cylinder 1 is provided with puncture needle core mechanism 2, the outer wall of puncture needle core mechanism 2 is provided with sleeve mechanism 3, the outer wall front side of puncture needle cylinder 1 is fixedly installed with fixed plate 11, and the left and right sides of fixed plate 11 are both fixedly installed with extension plate 12, two extension plates 12 are all provided with the sliding hole 121 that passes through in front and back, and the inner ring of two sliding holes 121 is all slidably installed with sliding rod 122, and the outer wall most front side of two sliding rods 122 is all fixedly installed with connecting rod 123, and the opposite end of two connecting rods 123 is fixedly installed with needle core protection cylinder 13, and the rear end of two sliding rods 122 is fixedly installed with limiting disc 1221, and the front end of two limiting discs 1221 is all fixedly installed with conical rubber sleeve 1222, and two conical rubber sleeves 1222 are respectively set in the outer wall last side of two sliding rods 122;
[0023] The puncture needle core 22 removed can be protected by sliding needle core protection cylinder 13 forward, and the sliding connection of sliding rod 122 and the sliding hole 121 of extension plate 12 is used to keep stable when sliding, until the most forward end sharp part of puncture needle core 22 is shielded by needle core protection cylinder 13, at this time, a part of the front end of conical rubber sleeve 1222 will also be clamped into sliding hole 121 to prevent sliding rod 122 from shaking, and limiting disc 1221 can also prevent sliding rod 122 from falling off, and the retracted puncture needle core 22 can be protected by needle core protection cylinder 13 to prevent medical staff from being stabbed.
[0024] As shown in Figure 4As shown, the front end of the puncture needle cylinder 1 is fixedly connected with a butt joint pipe 14 penetrating through the inner cavity thereof, the puncture needle core mechanism 2 comprises a needle core butt joint pipe 21, the rear side of the needle core butt joint pipe 21 is fixedly connected with a threaded pipe 24, the outer wall of the threaded pipe 24 is threadedly connected with the inner ring of the butt joint pipe 14, the outer wall front side of the threaded pipe 24 is fixedly installed with a limiting ring 25, the front end of the needle core butt joint pipe 21 is fixedly connected with a puncture needle core 22 penetrating through the inner cavity thereof, the inner wall of the puncture needle core 22 is fixedly coated with an anticoagulant coating 23;
[0025] During the removal of the puncture needle core 22, once damage occurs, the whole puncture needle core 22 can be removed by rotating the needle core butt joint pipe 21 through the threaded connection of the threaded pipe 24 and the butt joint pipe 14, facilitating replacement, and the blood passing through the puncture needle core 22 can be effectively prevented from coagulation by the anticoagulant coating 23, the anticoagulant coating 23 is made of heparin and uniformly coated on the inner wall of the puncture needle core 22 through ultrasonic atomization spraying technology.
[0026] As shown in the drawings, Figure 5 The sleeve mechanism 3 comprises a blood temporary storage tank 31, the blood temporary storage tank 31 is sleeved on the outer wall of the needle core protection cylinder 13, the front end of the blood temporary storage tank 31 is fixedly connected with a sleeve 32 penetrating through the inner cavity thereof, the sleeve 32 is sleeved on the outer wall of the puncture needle core 22, the inner wall rear side of the blood temporary storage tank 31 is fixedly installed with a sealing plate 33, the center of the sealing plate 33 is provided with a front and rear penetrating needle core insertion hole 34, the front side of the sealing plate 33 is movably installed with a turnover sealing plate 35, the rear side center of the turnover sealing plate 35 is fixedly installed with a sealing plug 36, the sealing plug 36 is clamped with the needle core insertion hole 34, the front side lower side of the turnover sealing plate 35 is fixedly installed with a stainless steel spring 37, the bottom end of the stainless steel spring 37 is fixedly connected with the inner wall of the blood temporary storage tank 31;
[0027] In use, the whole puncture needle core mechanism 2 is inserted into the patient's artery together with the sleeve mechanism 3, then the sleeve 32 contained in the sleeve mechanism 3 is pushed to the artery by means of the blood temporary storage tank 31 until the blood temporary storage tank 31 abuts against the patient's skin, then the puncture needle core 22 contained in the puncture needle core mechanism 2 can be extracted, and when the puncture needle core 22 is extracted, the turnover sealing plate 35 in the inner cavity of the blood temporary storage tank 31 is turned upward under the rebounding action of the stainless steel spring 37, so that the sealing plug 36 is clamped into the needle core insertion hole 34 provided in the sealing plate 33 to complete sealing, preventing blood backflow and facilitating the docking of the transducer.
[0028] The working principle of the arterial puncture needle structure for anesthesia will be described in detail below.
[0029] As shown in the drawings, Figures 1-5As shown, in use, the whole puncture needle core mechanism 2 is inserted into the patient's artery together with the sleeve mechanism 3, then the sleeve 32 contained in the sleeve mechanism 3 is pushed to the artery by means of the blood temporary storage tank 31 until the blood temporary storage tank 31 abuts against the patient's skin, then the puncture needle core 22 contained in the puncture needle core mechanism 2 is extracted, and when the puncture needle core 22 is extracted, the turnover sealing plate 35 in the inner cavity of the blood temporary storage tank 31 is turned upward under the rebounding action of the stainless steel spring 37, so that the sealing plug 36 is clamped into the needle core insertion hole 34 opened in the sealing plate 33 to complete sealing, prevent blood backflow, facilitate docking of the transducer, and the removed puncture needle core 22 can be protected by sliding the needle core protection cylinder 13 forward, and the sliding rod 122 is kept stable by the sliding connection with the sliding hole 121 opened in the extension plate 12 during sliding, until the needle core protection cylinder 13 shields the sharpest part of the front end of the puncture needle core 22, at this time, part of the front end of the conical rubber sleeve 1222 will also be clamped into the sliding hole 121 to prevent the sliding rod 122 from shaking, and the limiting disc 1221 can also prevent the sliding rod 122 from falling off, and the retracted puncture needle core 22 can be protected by the needle core protection cylinder 13 to prevent medical staff from being stabbed, and during the removal of the puncture needle core 22, if damage occurs, the whole puncture needle core 22 can be disassembled by rotating the needle core docking pipe 21 and using the threaded connection between the threaded pipe 24 and the docking pipe 14, which facilitates replacement, and the blood passing through the puncture needle core 22 can be effectively prevented from coagulating by the anticoagulant coating 23, and the anticoagulant coating 23 is made of heparin and uniformly coated on the inner wall of the puncture needle core 22 by ultrasonic atomization spraying technology.
[0030] The above has made a detailed description of the present application in general, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the scope of the present application.
Claims
1. A structure for anesthesia arterial puncture needle, comprising a puncture needle barrel (1), characterized in that: The puncture syringe (1) is provided with a puncture needle core mechanism (2) on the front side. The outer wall of the puncture needle core mechanism (2) is provided with a sleeve mechanism (3). A fixing plate (11) is fixedly installed on the front side of the outer wall of the puncture syringe (1). Extension plates (12) are fixedly installed on both the left and right sides of the fixing plate (11). Both extension plates (12) are provided with sliding holes (121) that pass through from front to back. Sliding rods (122) are slidably installed on the inner rings of both sliding holes (121). Connecting rods (123) are fixedly installed on the frontmost opposite surfaces of the outer walls of both sliding rods (122). Needle core protective sleeves (13) are fixedly installed on the opposite ends of the two connecting rods (123).
2. The structure of an anesthesia arterial puncture needle according to claim 1, characterized in that: Limiting discs (1221) are fixedly installed at the rear ends of the two slide rods (122), and conical rubber sleeves (1222) are fixedly installed at the front ends of the two limiting discs (1221). The two conical rubber sleeves (1222) are respectively sleeved on the last side of the outer wall of the two slide rods (122).
3. The structure of an anesthesia arterial puncture needle according to claim 1, characterized in that: The front end of the puncture needle (1) is fixedly connected to a connecting tube (14) that passes through its inner cavity. The puncture needle core mechanism (2) includes a needle core connecting tube (21). A threaded tube (24) is fixedly connected to the rear side of the needle core connecting tube (21). The outer wall of the threaded tube (24) is threadedly connected to the inner ring of the connecting tube (14). A limit ring (25) is fixedly installed on the front side of the outer wall of the threaded tube (24).
4. The structure of an anesthesia arterial puncture needle according to claim 3, characterized in that: The front end of the needle core connector (21) is fixedly connected to a puncture needle core (22) that penetrates its inner cavity, and the inner wall of the puncture needle core (22) is fixedly coated with an anticoagulant coating (23).
5. The structure of an anesthesia arterial puncture needle according to claim 1, characterized in that: The cannula mechanism (3) includes a blood storage tank (31), which is sleeved on the outer wall of the needle core protective tube (13). The front end of the blood storage tank (31) is fixedly connected to a cannula (32) that penetrates its inner cavity, and the cannula (32) is sleeved on the outer wall of the puncture needle core (22).
6. The structure of an anesthesia arterial puncture needle according to claim 5, characterized in that: A sealing plate (33) is fixedly installed on the rear side of the inner wall of the blood storage tank (31). A needle insertion hole (34) that runs through the front and back is opened at the center of the sealing plate (33). A flip sealing plate (35) is movably installed on the front side of the sealing plate (33). A sealing plug (36) is fixedly installed at the center of the rear side of the flip sealing plate (35). The sealing plug (36) is engaged with the needle insertion hole (34). A stainless steel spring (37) is fixedly installed on the lower front side of the flip sealing plate (35). The bottom end of the stainless steel spring (37) is fixedly connected to the inner wall of the blood storage tank (31).