CN219501721U - Atraumatic needle puncture fixing device - Google Patents

Abstract

The utility model discloses a nondestructive needle puncture fixing device, which comprises a base, a buffer piece and a supporting plate, wherein a sleeve is embedded on the base, a transparent diaphragm is arranged at the top of the sleeve, and a fixing rod is arranged at the outer side of the sleeve; the buffer piece comprises a buffer tube, a buffer rod and a rotating block, wherein a spring is connected to the inner bottom of the buffer tube, the spring is connected with the bottom of the buffer rod, and the upper end of the buffer rod is sleeved with the rotating block; wedge-shaped openings are formed in two ends of the supporting plate, the wedge-shaped openings are connected with the rotating blocks, and two groups of fixing seats for fixing the atraumatic needle disc wings are arranged above the supporting plate. The device presses the supporting plate, so that the rotating block and the wedge-shaped opening are meshed and fixed, the needle tail of the nondestructive needle is leveled when the disassembly and assembly are convenient, accordingly, the needle falling off and the puncture of the transfusion port puncture base by the nondestructive needle are prevented, the disc wing used for fixing the nondestructive needle is arranged on the fixing seat, the sliding block is stirred to be limited and fixed above the disc wing, and the problem that the nondestructive needle is easy to move or fall off when in use is solved.

Description

Atraumatic needle puncture fixing device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a nondestructive needle puncture fixing device.

Background

The port is a closed infusion device which is fully implanted in a human body and comprises a catheter part with a tip end positioned in an upper vena cava and a port seat which is implanted subcutaneously, wherein the port seat generally comprises a puncture membrane, a liquid storage tank, a puncture base and a catheter. After the transfusion port seat is placed, the special puncture needle is used for puncturing the transfusion port seat, so that intravenous transfusion or venous blood drawing can be performed, the transfusion port is a fully-implanted catheter, all structures are in the body, the transfusion port seat is positioned subcutaneously, the appearance is attractive and convenient, the infection risk is lower, and the service life is longer. The length of the existing nondestructive needle is required to be selected according to the depth of a liquid storage tank of a transfusion port seat and the thickness of subcutaneous tissue, the nondestructive needle is too short to cause skin injury or the needle point to deviate from the liquid storage tank, and the needle point is not stable due to too long. The individual differences in the patient, the needle length selected, too, will vary. Aiming at the tail end of the non-damaged needle exposed outside the body after the non-damaged needle is punctured, the tail end of the non-damaged needle is leveled by using sterile gauze and then fixed by applying, the size of the sterile gauze is too large, the sterile gauze is not easy to adjust, and the applying is easy to turn up; when the application is used, the operator may lack the practical experience of maintenance, and the split part is not downward, so that the puncture point is not positioned in the center of the application; the sterile gauze applied on the patch is easy to cover the puncture points, and the evaluation of the puncture points can be influenced; and the infusion tube part with the prolonged atraumatic needle is not fixed properly, which is easy to lead to traction. Aiming at the problems, the puncture fixing device of the atraumatic needle is designed to solve the problems, so that the atraumatic needle can be matched with different individuals.

Disclosure of Invention

Aiming at the prior art, the utility model aims to provide a nondestructive needle puncture fixing device, which solves the problem that the existing nondestructive needle is easy to move or fall off when in use.

The technical scheme of the utility model is realized as follows:

the atraumatic needle puncture fixing device comprises a base, wherein buffer pieces are arranged above two ends of the base, and support plates are movably connected above the buffer pieces; the base is embedded with a sleeve, the bottom of the sleeve is provided with a through hole, the top of the sleeve is provided with a transparent diaphragm, and the outer side of the sleeve is provided with a fixed rod; the buffer piece comprises a buffer tube, a buffer rod and a rotating block, wherein a spring is connected to the inner bottom of the buffer tube, the spring is connected with the bottom of the buffer rod, and the rotating block is sleeved at the upper end of the buffer rod; wedge-shaped openings are formed in two ends of the supporting plate, the wedge-shaped openings are connected with the rotating blocks, two groups of fixing seats used for fixing the intact needle disc wings are arranged above the supporting plate, sliding grooves are formed in the fixing seats, sliding blocks are arranged on the sliding grooves in a sliding mode, limiting blocks are arranged at two ends of the sliding blocks, and penetrating holes are formed in the supporting plate.

Further, the sliding groove is in an inverted U shape.

Further, the upper end of the buffer rod is sleeved with a circular ring, and two ends of the outer side of the circular ring are connected with the rotating blocks.

Further, the shape of the rotating block is a wedge shape.

Further, a damping block is arranged at the bottom of the buffer rod and is connected with the spring.

Further, the bottom of the base is provided with an application for being stuck on the skin.

The utility model has the beneficial effects that:

the device is characterized in that the base is stuck on the skin matched with the transfusion port, the supporting plate is pressed, the rotating block is fixedly matched with the wedge-shaped opening, the buffer rod is prevented from being separated from the supporting plate, the buffer rod is convenient to assemble and disassemble, the needle tail of the nondestructive needle is leveled, the needle falling is prevented, and the nondestructive needle is prevented from puncturing the transfusion port puncture base.

Further, the nondestructive needle passes through the puncture hole, the diaphragm is punctured through the through hole, the infusion is carried out at the liquid storage tank of the infusion port, the two disc wings of the nondestructive needle are respectively fixed by the fixing seat, and the sliding block is limited and fixed above the disc wings, so that the nondestructive needle is prevented from moving or falling off during use.

Further, the fixing rod is arranged to wind and fix the infusion tube at the tail end of the needle tube, so that the needle is prevented from being pulled and pulled.

Further, the transparent diaphragm on the sleeve not only can clearly observe the puncture condition of the skin puncture point, but also can fix the periphery of the needle tube.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a atraumatic needle penetration fixation device of the present utility model;

FIG. 2 is a schematic cross-sectional view of a atraumatic needle penetration fixation device of the present utility model;

FIG. 3 is an exploded view of a atraumatic needle penetration securement device of the present utility model;

fig. 4 is an enlarged schematic view at a of fig. 1.

In the figure: the device comprises a base 1, a buffer piece 2, a buffer tube 21, a buffer rod 22, a rotary block 23, a spring 24, a circular ring 25, a damping block 26, a support plate 3, a wedge-shaped opening 31, a puncture hole 32, a sleeve 4, a through hole 41, a diaphragm 42, a fixed rod 43, a fixed seat 5, a sliding groove 51, a sliding block 52, a limiting block 53 and a disc 6.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are provided below and the present utility model is further described with reference to the accompanying drawings.

Example 1

Referring to fig. 1-4, a nondestructive needle puncture fixing device comprises a base 1, wherein the base is stuck on skin, buffer pieces 2 are arranged above two ends of the base 1, a supporting plate 3 is movably connected above the buffer pieces 2, the buffer pieces 2 and the supporting plate 3 play a role in flattening the tail end of a needle tube and fixing the tail end of the needle, and the problems that a needle is removed and an overlong needle head pierces a base of a liquid storage tank are avoided. The base 1 is embedded with the sleeve 4, the bottom of the sleeve 4 is provided with the through hole 41, the through hole 41 is opposite to the transfusion port, the through hole 41 is aligned with and fixes the transfusion port for puncture operation, the top of the sleeve 4 is provided with the transparent diaphragm 42, and the diaphragm 42 can be applied in a medical transparent manner, so that the puncture point is convenient to replace and observe, and the puncture point is favorable for evaluation. The outside of the sleeve 4 is provided with a fixing rod 43, the fixing rod 43 is arc-shaped, and the infusion tube can be fixed on the fixing rod 43. The buffer 2 comprises a buffer tube 21, a buffer rod 22 and a rotating block 23, wherein a spring 24 is connected to the inner bottom of the buffer tube 21, the spring 24 is connected to the bottom of the buffer rod 22, the buffer rod 22 is compressible into the buffer tube 21, and the upper end of the buffer rod 22 is sleeved with the rotating block 23. Wedge-shaped openings 31 are formed at two ends of the support plate 3, the support plate 3 is pressed, and when the buffer rod 22 passes through the wedge-shaped openings 31, the buffer rod 22 deflects a certain angle under the inertia force of the spring 24, so that the buffer rod 22 and the wedge-shaped openings 31 are in a meshed fixed shape, namely, the shape of the rotating block 23 and the shape of the wedge-shaped openings 31 are matched with each other. Two groups of fixing seats 5 for fixing the atraumatic needle disc wings are arranged above the supporting plate 3, the left disc wings are fixed on the left fixing seat 5, and the right disc wings are fixed on the right fixing seat 5. A chute 51 is arranged in the fixed seat 5, a sliding block 52 is arranged on the chute 51 in a sliding way, limiting blocks 53 are arranged at two ends of the sliding block 52, and a puncture hole 32 is formed in the supporting plate 3 in a penetrating way.

Specifically, the chute 51 is in an inverted U shape, and the slide block 52 fixes the wing when sliding inward of the chute 51, and releases the restriction of the wing when sliding outward of the chute 51.

Specifically, the upper end of the buffer rod 22 is sleeved with a circular ring 25, two ends of the outer side of the circular ring 25 are connected with rotating blocks 23, and the rotating blocks 23 are wedge-shaped with small upper part and large lower part.

Specifically, the shape of the rotating block 23 is a wedge shape, the rotating block 23 is matched with the wedge-shaped opening 31, and the rotating block 23 is clamped at the wedge-shaped opening 31 for limiting.

Specifically, a damping block 26 is arranged at the bottom of the buffer rod 22, and the damping block 26 is connected with the spring 24. The damping block 26 can increase the friction resistance of the buffer rod 22, and avoid the buffer rod 22 from repeatedly moving under the telescopic acting force of the spring 24.

Specifically, the bottom of the base 1 is provided with an application for sticking to the skin, and infusion or blood drawing is stable when sticking to the skin. The distance between the base 1 and the support plate 3 is about 5-15 mm, which can be matched not only with the common body type patient, but also with the fat body type patient.

The working principle of the atraumatic needle puncture fixing device is as follows:

the base 1 is stuck on the skin, the through holes 41 are opposite to the transfusion port, the puncture is convenient to fix, the supporting plate 3 is pressed into the buffer rod 2, the rotating block 23 and the wedge-shaped opening 31 are meshed and fixed, the buffer rod 22 is prevented from being separated from the supporting plate 3, the membrane 42 is convenient to assemble and disassemble, and the transfusion device can be used again. The atraumatic needle passes through the puncture hole 32, pierces the transparent diaphragm 42 on the sleeve 4, and passes through the through hole 41, punctures the liquid storage tank of the transfusion port for transfusion, at this moment, the transparent diaphragm 42 on the sleeve 4 can clearly observe the puncturing condition of the skin puncturing point, and the diaphragm 42 can play a fixed supporting role on the periphery of the needle. Two groups of fixed seats 5 are respectively fixed with two disc wings 6 of the nondestructive needle, and the sliding block 52 is limited and fixed to the position above the inner disc wings 6, so that the nondestructive needle is prevented from moving or falling off during use, and the sliding block 52 is slid to the outer side after the puncture is completed. The fixing rod 43 is arranged to wind and fix the infusion tube at the tail end of the needle tube, so that the pulling needle is avoided.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model.

Claims (6)

1. The nondestructive needle puncture fixing device is characterized by comprising a base, wherein buffer pieces are arranged above two ends of the base, and support plates are movably connected above the buffer pieces; the base is embedded with a sleeve, the bottom of the sleeve is provided with a through hole, the top of the sleeve is provided with a transparent diaphragm, and the outer side of the sleeve is provided with a fixed rod; the buffer piece comprises a buffer tube, a buffer rod and a rotating block, wherein a spring is connected to the inner bottom of the buffer tube, the spring is connected with the bottom of the buffer rod, and the rotating block is sleeved at the upper end of the buffer rod; wedge-shaped openings are formed in two ends of the supporting plate, the wedge-shaped openings are connected with the rotating blocks, a fixing seat for fixing the intact needle disc wings is arranged above the supporting plate, a sliding groove is formed in the fixing seat, a sliding block is arranged on the sliding groove in a sliding mode, limiting blocks are arranged at two ends of the sliding block, and penetrating holes are formed in the supporting plate in a penetrating mode.

2. The atraumatic needle penetration securement device of claim 1, wherein the chute is inverted U-shaped.

3. The atraumatic needle penetration fixation device of claim 1, wherein the upper end of the buffer rod is sleeved with a circular ring, and the outer two ends of the circular ring are connected with the rotating blocks.

4. A atraumatic needle penetration securement device in accordance with claim 3, wherein the rotatable block is wedge-shaped.

5. The atraumatic needle penetration securement device of claim 1, wherein the buffer rod bottom is provided with a dampening block, the dampening block being coupled to the spring.

6. A atraumatic needle penetration fixation apparatus in accordance with claim 1, wherein the base has a bottom portion provided with an application for adhering to the skin.