Teaching aid for venous indwelling needle

Abstract

The utility model discloses a venous indwelling needle teaching aid, which comprises a supporting seat, a puncture die and an infusion mechanism. The puncturing mold comprises a first rotating cylinder rotationally connected to a connecting frame at the side end of the supporting base, a plurality of second rotating cylinders rotationally connected to the periphery of the first rotating cylinder, a plurality of puncturing pads wound around the second rotating cylinders, and limiting handles arranged at the side ends of the second rotating cylinders. The liquid conveying mechanism comprises a connecting frame, a liquid outlet cylinder detachably connected to one side of the connecting frame, a liquid collecting cylinder fixedly connected to the other side of the connecting frame, and a control module arranged at the side end of the supporting base. According to the utility model, through controllable solution flow, solutions with different color shades and puncture pads with different elasticity, the real vein blood flow state and different blood vessel characteristics are simulated, the diversity and practicability of training are enhanced, and the blood vessel recognition capability and puncture skills of an operator are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical auxiliary instrument, concretely relates to a venous indwelling needle teaching aid. BACKGROUND

[0002] As a common medical instrument, venous indwelling needle is widely used in clinic, especially in intravenous infusion, drug injection, blood extraction examination and other operations. Correctly and skillfully mastering the puncture skill of venous indwelling needle is of great significance to ensure patient safety and improve treatment effect. However, the technical requirement of venous puncture operation is high, especially in the selection of puncture site, the control of needle depth and angle, which requires the operator to have strong skills and experience.

[0003] With the continuous development of medical technology and the demand of medical education, simulation training gradually becomes an important means of skill training for medical staff.

[0004] However, in the existing venous indwelling needle training equipment, many devices only provide static puncture pad or no liquid flow simulation, which cannot effectively simulate the flow state of venous blood. The existing venous puncture training equipment provides a single training scene, and the hardness and color of the puncture pad are single, which cannot be adjusted according to the needs and training targets of the operator.

[0005] Therefore, the utility model provides a venous indwelling needle teaching aid. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of venous indwelling needle teaching aids to solve the problems existing in the above background technology.

[0007] In order to achieve the above technical effects, the utility model is implemented by the following technical scheme: a venous indwelling needle teaching aid, including support seat, puncture mold and infusion mechanism.

[0008] Further, the support seat is provided with a placing groove; the puncture mold includes a first rotating drum rotatably connected to a side end of the support seat, a plurality of second rotating drums rotatably connected around the first rotating drum, a plurality of puncture pads wound on the plurality of second rotating drums, and a limiting handle provided at a side end of the second rotating drum; the infusion mechanism includes a connecting frame, a liquid outlet cylinder detachably connected to one side of the connecting frame, a liquid collecting cylinder fixedly connected to the other side of the connecting frame, and a control module provided at a side end of the support seat.

[0009] Further, the placing groove is rotatably connected to a gland at the upper end, one end of the gland is detachably connected to the placing groove, and an elastic pad is arranged in the placing groove.

[0010] Further, the connecting frame is provided with a fixed block on one side.

[0011] Further, the first rotating drum is rotatably penetrated into the outer end of the fixed block.

[0012] Further, the limiting handle comprises a limiting rod rotatably connected to the fixed block, a rotating handle fixedly connected to the outer end of the first rotating drum, a limiting block arranged at the lower arm end of the rotating handle, a plurality of limiting grooves arranged at the inner end of the rotating handle, and an elastic member arranged between the upper arm end of the rotating handle and the fixed block, and the limiting block and the limiting grooves are in clamping connection.

[0013] Further, the liquid outlet cylinder is provided with a first liquid pump and a first liquid port, the liquid collecting cylinder is provided with a second liquid pump and a second liquid port, a liquid level sensor is arranged at the upper portion of the liquid collecting cylinder, the first liquid pump and the second liquid port are detachably connected with a second liquid pipe, and the second liquid pump and the first liquid port are detachably connected with a first liquid pipe; and the control module is electrically connected with the first liquid pump, the second liquid pump and the liquid level sensor.

[0014] Further, the control module is wirelessly connected with an external control panel.

[0015] The utility model discloses beneficial effects are:

[0016] 1, the utility model discloses a controllable infusion mechanism, and the solution flow is controlled through the liquid outlet cylinder, and the liquid flow in the second liquid pipe can generate internal pressure, and the flowing state of the venous blood is simulated realistically, and the operator can carry out puncture training in the near real environment, and the sensitivity and adaptability when actually operating are improved.

[0017] 2, through the solution of various colors and depths and the puncture pad of different elasticity, the operator can simulate the color and elasticity of different blood vessels, and the diversity and practicality of training are enhanced. Different colors and depths help to improve the ability of the operator to identify blood vessels, and effectively train patients with different skin colors and blood vessel shapes. DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the enlarged schematic diagram of the structure of B in the utility model;

[0021] Figure 3 It is the plan view of the utility model;

[0022] Figure 4 is the utility model Figure 3 is the utility model

[0023] Figure 5 is the utility model second liquid pipe connection schematic diagram

[0024] In the drawings, the component list represented by each reference numeral is as follows:

[0025] 1, support seat;11, placing groove;12, fixed block;111, gland;112, elastic pad;2, puncture mold;21, first rotating drum;22, second rotating drum;23, puncture pad;24, limiting handle;241, limiting rod;242, handle;243, limiting block;244, limiting groove;245, elastic member;3, infusion mechanism;31, connecting frame;32, liquid outlet cylinder;321, first liquid pump;322, first liquid port;323, first liquid pipe;33, liquid collecting cylinder;331, second liquid pump;332, second liquid port;333, second liquid pipe;34, control module. DETAILED DESCRIPTION

[0026] 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, rather than 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.

[0027] Embodiment 1

[0028] Referring to Figures 1 to 5 As shown in the figure, a kind of intravenous indwelling needle teaching aid, including support seat 1, puncture mold 2 and infusion mechanism 3, it is characterized in that: support seat 1 is equipped with placing groove 11. Puncture mold 2 includes the first rotating drum 21 that is rotatably connected on the side end connecting frame of support seat 1 by bearing sleeve, multiple second rotating drums 22 rotatably connected around the first rotating drum 21, multiple puncture pads 23 respectively wound and fixed on multiple second rotating drums 22, limiting handle 24 arranged at the side end of second rotating drum 22. Infusion mechanism 3 includes connecting frame 31, liquid outlet cylinder 32 detachably connected on one side of connecting frame 31 by clamping groove, liquid collecting cylinder 33 fixedly connected on the other side of connecting frame 31, control module 34 arranged at the side end of support seat 1. The upper end of liquid outlet cylinder 32 and liquid collecting cylinder 33 is rotatably connected with cover.

[0029] Multiple second rotating drums 22 are respectively wound with puncture pads 23 of different hardness and different transparency, and puncture pads 23 are made of environmentally friendly thermoplastic body mixed glue material.

[0030] The upper end of the placing groove 11 is rotationally connected with a cover 111, one end of the cover 111 is detachably connected with the placing groove 11 through a buckle assembly, and the placing groove 11 is provided with an elastic pad 112.

[0031] The side of the connecting frame is provided with a fixed block 12.

[0032] One end of the first rotary drum 21 is rotationally penetrated to the outer end of the fixed block 12.

[0033] The limiting handle 24 comprises a limiting rod 241 rotationally connected with the fixed block 12 through a rotating shaft, a rotating handle 242 fixedly connected with the outer end of the first rotary drum 21, a limiting block 243 arranged at the lower arm end of the rotating handle 242, a plurality of limiting grooves 244 arranged at the inner end of the rotating handle 242, an elastic member 245 arranged between the upper arm end of the rotating handle 242 and the fixed block 12, and the limiting block 243 and the limiting grooves 244 are in clamping connection.

[0034] The liquid outlet cylinder 32 is provided with a first liquid pump 321 and a first liquid port 322, the liquid collecting cylinder 33 is provided with a second liquid pump 331 and a second liquid port 332, the liquid surface sensor is arranged at the upper portion of the liquid collecting cylinder 33, the second liquid pipe 333 is detachably connected between the first liquid pump 321 and the second liquid port 332, and the first liquid pipe 323 is detachably connected between the second liquid pump 331 and the first liquid port 322.

[0035] The electric elements in the utility model are all externally connected to 220V mains.

[0036] Embodiment 2

[0037] The operation principle of the utility model:

[0038] When the teaching aid is used, the operator first prepares a plurality of liquid outlet cylinders 32 by using pigments to prepare colored solutions, and pours solutions with different color depths into different liquid outlet cylinders 32.

[0039] The operator sends a starting instruction of the first liquid pump 321 through the control panel, the wireless signal module sends a signal to the central processor after receiving the signal, the central processor sends the signal to the first liquid pump 321, the first liquid pump 321 is started, the solution in the liquid outlet cylinder 32 is pumped out and flows into the liquid collecting cylinder 33 through the second liquid pipe 333.

[0040] The operator presses the arm end of the limiting rod 241, the limiting rod 241 rotates, the limiting block 243 is separated from the limiting groove 244, and the elastic element 245 is in a compressed state. At this time, the limiting rod 241 releases the fixing of the handle 242 and the first rotating drum 21. The handle 242 is rotated, and the second rotating drum 22 of the required puncture pad 23 is rotated to the side end of the placing groove 11 through the first rotating drum 21. The limiting rod 241 is loosened, the limiting block 243 is inserted into the new limiting groove 244 under the rebounding action of the elastic element 245, and the fixing of the first rotating drum 21 is completed. The operator pulls the puncture pad 23 to make the puncture pad 23 cover the second liquid pipe 333 on the placing groove 11, and then covers the pressing cover 111, so that the puncture pad 23 is fixed on the placing groove 11, and the teaching aid is assembled.

[0041] The operator sends a starting instruction of the first liquid pump 321 through the control panel, controls the flow of the first liquid pump 321, and the first liquid pump 321 draws out the solution in the liquid outlet drum 32 and flows into the liquid collecting drum 33 through the second liquid pipe 333. The liquid in the second liquid pipe 333 simulates the blood flow in the human blood vessel, and internal pressure is generated. Then the operator can perform puncture training of the intravenous catheter by puncturing the second liquid pipe 333 through the puncture pad 23. After the second liquid pipe 333 is punctured for 7-8 times, the liquid pump is turned off, and a new second liquid pipe 333 is replaced. When the solution drawn into the liquid collecting drum 33 reaches the liquid level sensor position, the liquid level sensor sends a signal to the central sensor, the central sensor transmits the signal to the alarm, and the alarm gives an alarm to remind the operator that the liquid in the liquid collecting drum 33 is full. Then the operator sends a starting instruction of the second liquid pump 331 through the control panel, and the second liquid pump 331 draws out the solution in the liquid collecting drum 33 and flows back into the liquid outlet drum 32 through the first liquid pipe 323.

[0042] The operator can replace other liquid outlet drums 32 or rotate the first rotating drum 21 to replace other elastic puncture pads 23, so as to train different color depths of blood vessels or different elastic skins.

[0043] The controllable solution flow, the solutions with various color depths, and the puncture pads with different elasticity can simulate the real intravenous blood flow state and different blood vessel characteristics, enhance the diversity and practicality of training, and improve the blood vessel identification ability and puncture skill of the operator.

Claims

1. A intravenous indwelling needle teaching aid, comprising a supporting seat (1), a puncture mold (2) and an infusion mechanism (3), characterized in that: The support seat (1) is provided with a placing groove (11); the puncture mold (2) comprises a first rotating cylinder (21) rotatably connected to the side end of the support seat (1), a plurality of second rotating cylinders (22) rotatably connected around the first rotating cylinder (21), a plurality of puncture pads (23) wound on the plurality of second rotating cylinders (22), and a limiting handle (24) arranged at the side end of the second rotating cylinder (22); the infusion mechanism (3) comprises a connecting frame (31), a liquid outlet cylinder (32) detachably connected to one side of the connecting frame (31), a liquid collecting cylinder (33) fixedly connected to the other side of the connecting frame (31), and a control module (34) arranged at the side end of the support seat (1).

2. The intravenous indwelling needle teaching aid according to claim 1, wherein The upper end of the placing groove (11) is rotatably connected with a gland (111), one end of the gland (111) is detachably connected with the placing groove (11), and the placing groove (11) is provided with an elastic pad (112) inside.

3. The intravenous indwelling needle teaching aid according to claim 1, wherein One side of the connecting frame is provided with a fixed block (12).

4. The intravenous indwelling needle teaching aid according to claim 1, wherein One end of the first rotating cylinder (21) is rotatably penetrated to the outer end of the fixed block (12).

5. The intravenous indwelling needle teaching aid according to claim 1, wherein The limiting handle (24) comprises a limiting rod (241) rotatably connected to the fixed block (12), a rotating handle (242) fixedly connected to the outer end of the first rotating cylinder (21), a limiting block (243) arranged at the lower arm end of the rotating handle (242), a plurality of limiting grooves (244) arranged at the inner end of the rotating handle (242), an elastic member (245) arranged between the upper arm end of the rotating handle (242) and the fixed block (12), and the limiting block (243) and the limiting groove (244) are matched and clamped.

6. The intravenous indwelling needle teaching aid according to claim 1, wherein The liquid outlet cylinder (32) is provided with a first liquid pump (321) and a first liquid port (322), the liquid collecting cylinder (33) is provided with a second liquid pump (331) and a second liquid port (332), the inside of the liquid collecting cylinder (33) is provided with a liquid level sensor, the first liquid pump (321) and the second liquid port (332) are detachably connected with a second liquid pipe (333), the second liquid pump (331) and the first liquid port (322) are detachably connected with a first liquid pipe (323); the control module (34) is electrically connected with the first liquid pump (321), the second liquid pump (331) and the liquid level sensor.

7. The intravenous indwelling needle teaching aid according to claim 1, wherein The control module (34) is wirelessly connected with an external control panel.

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