CN219847687U - Hand fixing device for venous indwelling needle - Google Patents

Abstract

The utility model relates to a hand fixing device for a venous indwelling needle, which comprises a wrist supporting plate and a palm supporting plate, wherein the wrist supporting plate structure is attached to the physiological curve of the inner side of a wrist; the palm support plate structure is attached to the palm physiological curve; the palm support plate and the wrist support plate have 140-160-degree arc-shaped bending and are integrated panels; the edge of one side of the palm supporting plate is provided with a first fixing ring fixed with the thumb, and the edge of the other side of the palm supporting plate is provided with a second fixing ring fixed with the little finger; the hand-held device is good in hand fixing effect, less in constraint on the hand, and greatly improved in comfort level of the child patient; the operation on the back of the hand is not hindered; the medical care does not need to use the adhesive tape to paste the extension tube and the head, thereby saving the operation time and more importantly reducing the stimulation of the adhesive tape to the skin of the child.

Description

Hand fixing device for venous indwelling needle

Technical Field

The utility model belongs to the technical field of syringe fixing tools, and particularly relates to a hand fixing device for a venous indwelling needle.

Background

At present, the use rate of intravenous indwelling needles is increasing, and particularly in pediatrics, the intravenous indwelling needles are almost becoming necessary infusion tools. The biggest problem of using the vein indwelling needle is the problem of unplanned tube drawing, foreign research results show that unplanned tube drawing is easier to occur for children under 2 years old, new beam research shows that the unplanned tube drawing of the vein indwelling needle for children under 5 years old accounts for 97.8%, and the unplanned tube drawing rate of the vein indwelling needle for children under the older age is higher.

The general intravenous transfusion is carried out on the hand, in order to avoid the occurrence of tube detachment in the hand movement, the installation process of the intravenous retention needle comprises the steps that a trocar is firstly inserted into a vein of a patient, then a needle point is taken out, and a needle seat and a Y interface are adhered to the surface of the back of the hand by using a film; the extension tube is then adjusted to the appropriate bend, and the indwelling needle connection port is then secured to the palm base or elbow joint with a piece of tape for about 30 seconds during the entire procedure. Not only does the unplanned extubation increase patient pain, risk of infection, but also increases nurse workload. There is a need for a device that reduces unintended extubation and facilitates medical care in installing a venous indwelling needle.

In the prior art, a plurality of hand fixing devices are provided, such as the patent of our country, patent number 202021601535.1 and application date 2020.08.04, an arc fixing hand plate for intravenous needle transfusion for children is disclosed, the arc-shaped tail end of a wrist supporting plate horizontally extends outwards to form a palm supporting part for supporting the hand, and the wrist supporting plate and the palm supporting plate are both structures conforming to the physiological bending radian of a human body and are fixed to the hand through binding bands. The device avoids too much hand movement with the venous indwelling needle mounted.

The problems still exist in the scheme: 1) The scheme only pays attention to palm adaptability curve support, does not carry out optimization constraint on the curvature of the wrist, and cannot enable the included angle between the palm and the arm to reach the angle most suitable for the indwelling needle; 2) The multiple band structure, particularly the bands on the palm, tend to interfere with the indwelling needle.

Disclosure of Invention

The utility model aims to solve the problems that: 1) In the prior art, the hand fixing device cannot be fully suitable for the indwelling needle; 2) The procedure of the needle mounting operation cannot be simplified.

The utility model solves the problems, and adopts the following technical scheme:

the hand fixing device of the venous indwelling needle comprises a wrist supporting plate and a palm supporting plate, wherein the wrist supporting plate structure is attached to the physiological curve of the inner side of a wrist; the palm support plate structure is attached to the palm physiological curve; the palm support plate and the wrist support plate have 140-160 degree arc-shaped bending and are integrated panels; the edge of one side of the palm supporting plate is provided with a first fixing ring fixed with the thumb, and the edge of the other side of the palm supporting plate is provided with a second fixing ring fixed with the little finger; the hand rest is characterized by further comprising a curve supporting rod, wherein the lower end of the curve supporting rod is connected with the palm supporting plate, the upper end of the curve supporting rod winds onto the back of the hand, and a clamp is arranged at the upper end of the curve supporting rod.

Compared with the prior art, the utility model adopting the technical scheme has the beneficial effects that:

1) The palm support plate is fixed with the thumb and the little finger, so that the fixing effect on the hand is good, the restriction on the hand is less, and the comfort level of the child patient is greatly improved; 2) The fingers on the two sides are fixed, so that the operation on the back of the hand is not hindered; 3) The curve supporting rod can fix the indwelling needle extension tube, so that medical care does not need to stick the extension tube and the head by using an adhesive tape, the operation time is saved, the higher the activity degree of the connecting port is due to the fixation of the clamp, and the medical care is convenient to connect the infusion tube into the indwelling needle; 4) Reduces the use of the adhesive tape and the irritation to the skin of the child.

Preferably, the utility model further adopts the technical scheme that:

the clip is a movable C-shaped hook, and the outer end of the retention needle extension tube is pressed in the clip. The C-shaped hook is convenient for fixing the extension tube and has high fixing and detaching speeds.

The curve supporting rod is a steel bar which is not broken by a large force and can not deform the original curve, and the lower end of the curve supporting rod is inserted and fixed on the side edge of the palm supporting plate. The steel bar in the scheme can fix and support the extension tube, and can also adjust the distance between the clamp and the palm fixing plate, so that the palm fixing plate is suitable for palms with different thicknesses.

The curve supporting rod comprises a fixing part fixedly connected with the palm supporting plate and a cantilever part provided with a clip; the outer end of the fixed part is provided with a screw, the lower end of the screw is fixedly connected with a poking wheel, the poking wheel is embedded in the fixed part, at least a part of circumference of the poking wheel is positioned outside the fixed part, and the screw vertically penetrates out of the fixed part; the upper part of the screw rod is sheathed with a sliding block through threads; one end of the overhanging part far away from the clip is fixedly connected with the sliding block. The curve supporting rod is of a solid structure, so that the phenomenon that the clip moves downwards under pressure to press the back of the hand is avoided; the height of the clip can be adjusted according to the hand of the patient.

The outside of the sliding block is also provided with a guide tail which is arranged in the sliding groove, and the lower end of the sliding groove is fixedly connected with the fixing part. The position of the cantilever part is automatically limited, and the height of the cantilever part can be adjusted by one hand.

The palm backup pad corresponds palm area and is equipped with the arc breach, installs spherical gasbag in the arc breach, and this spherical gasbag both sides are equipped with the engaging lug, engaging lug and palm backup pad fixed connection, and the inflation inlet is established to one side that spherical gasbag kept away from the palm. The scheme air bag controls the inflation amount according to the hand shape, is suitable for more patients, and improves the comfort level.

Drawings

FIG. 1 is a diagram of the structure of the palm side of the present utility model;

FIG. 2 is a view showing an improved construction of the palm support plate of the present utility model;

FIG. 3 is a schematic view showing the relative angles of the palm support plate and the wrist support plate according to the present utility model;

FIG. 4 is a view of the back side of the hand of the present utility model;

FIG. 5 is a schematic view of a curved support bar embodiment;

FIG. 6 is a schematic diagram of a second embodiment of a curved support bar;

in the figure: 1. a palm support plate; 2. a wrist support plate; 3. a strap; 4. a first fixing ring; 5. a curved support bar; 6. a clip; 7. a thumb wheel; 8. a screw; 9. the sliding block, 10 and the sliding chute; 11. and guiding the tail.

Detailed Description

The utility model is further described below in connection with the following examples which are provided for the purpose of better understanding of the present utility model and are, therefore, not to be construed as limiting the scope of the utility model.

The length of the retaining needle is longer for the blood vessel of the back of the hand of the child, part of the retaining needle can extend to the wrist, in order to maintain the smooth dripping of liquid, the wrist is required to keep the palm curvature at about 140 degrees, and the retaining needle extension tube is fixed by the traditional rubberized fabric, which can not achieve the Gao Juping lifting effect due to the unstable rubberized fabric fixation or the nonstandard operation of nurses

Referring to fig. 1 to 4, the venous indwelling needle hand fixing device provided by the utility model comprises a wrist support plate 2 and a palm support plate 1, wherein the wrist support plate 2 is structurally attached to the physiological curve of the inner side of a wrist; the palm support plate 1 is structurally attached to a palm physiological curve; the palm support plate 1 and the wrist support plate 2 have arc-shaped bends of 140 degrees to 160 degrees, and they are integrated panels; the edge of one side of the palm support plate 1 is provided with a first fixing ring 4 fixed with the thumb, and the edge of the other side is provided with a second fixing ring fixed with the little finger; the hand-back-rest device also comprises a curve supporting rod 5, wherein the lower end of the curve supporting rod 5 is connected with the palm supporting plate 1, the upper end of the curve supporting rod is wound on the hand back, and the upper end of the curve supporting rod is provided with a clip 6.

The wrist support plate 2 is fixed with the arm through the binding belt 3, two sides of the palm support plate 1 are fixed with the thumb and the little finger, the whole palm can basically keep stable and smooth after the two fingers are supported and fixed, the movements of the middle three fingers can not influence the remaining needle, and the restriction feeling is reduced for a patient, so that the wrist support plate is more comfortable. The retaining needle extension tube is not required to be fixed by using adhesive, and can be fixed or separated from the clamp 6 only by pushing and pulling, so that the process of tearing off old adhesive and finding out new adhesive tape for replacement is saved, the effect of saving time can be particularly obvious in practical operation, and the skin condition of an infant or adult patient is tender and fragile, and the adhesive tape is usually carefully and deliberately torn off, so that the time is slightly long, and the damage to the skin is large due to long-term adhesive tape covering and repeated adhesive tape replacement.

At least the palm support plate 1 and the wrist support plate 2 are manufactured by 3D printing; the 3D printing can also be done synchronously with the curved support bar 5.

The palm support plate 1 and the wrist support plate 2 are also provided with a plurality of heat dissipation holes.

The first fixing ring 4 and the second fixing ring for 3D printing can be circular rings or split rings, and are preferably made of softer rubber, and are secondarily fixed with the palm support plate 1 through clamping or hot melting. The first fixing ring 4 and the second fixing ring can be 3D printed with the palm supporting plate 1 at the same time, and can also be a binding belt 3 and a magic tape.

The clip 6 is a movable C-shaped hook, and the outer end of the retention needle extension tube is pressed in the clip 6. The size of the C-shaped hook is matched with that of the extension tube, the extension tube is pressed into the C-shaped hook when the extension tube is used, the C-shaped hook can clamp the extension tube, when the extension tube is pulled outwards, the C-shaped hook can be pulled out of the extension tube conveniently, the clip 6 is hung on the back of the hand, the distance between the clip and the skin of the back of the hand is generally 2mm to 5mm, and the extension tube is lifted according with Gao Juping.

Because of different hand shapes of people and different palm thicknesses, the distance between the clamp 6 and the palm support plate 1 can adapt to different hand shapes, or the thickness of people changes or the swelling of the palm support plate 1 in a short time, the utility model designs a structure with the height of the clamp 6 adjustable, and particularly provides two embodiments of a connecting structure of the curve support rod 5 and the palm support plate 1:

example 1: referring to fig. 5, the curve supporting rod 5 is a steel bar which is not broken by a large force and can not deform the original curve, and the lower end of the curve supporting rod is inserted and fixed on the side edge of the palm supporting plate 1. The steel bar of the scheme is broken outwards by a large force, so that the height of the clamp 6 is increased, or when the development position is higher, the steel bar is pressed downwards by force, and the bending state of the steel bar is changed. After the position of the clamp 6 is set, the embodiment can stably support the height of the extension tube in a non-pressed state, and the supporting force is slightly insufficient when other objects press the curve supporting rod 5.

Example 2: referring to fig. 6, the curved support bar 5 includes a fixing portion fixedly connected with the palm support plate 1, and a cantilever portion provided with a clip 6; the outer end of the fixed part is provided with a screw rod 8, the lower end of the screw rod 8 is fixedly connected with a thumb wheel 7, the thumb wheel 7 is embedded in the fixed part, at least a part of circumference of the thumb wheel is positioned outside the fixed part, and the screw rod 8 vertically penetrates out of the fixed part; the upper part of the screw rod 8 is sheathed with a sliding block 9 through threads; one end of the overhanging part far away from the clip 6 is fixedly connected with the sliding block 9. The fixing part and the overhanging part of the proposal are both in a structure with larger hardness, and the height of the overhanging part is controlled by the height adjusting screw rod 8, thereby adjusting the distance between the clip 6 and the skin. Specifically, during adjustment, one hand holds the overhanging portion, the other hand rotates the thumb wheel 7, and the axial rotation of the screw rod 8 is converted into linear motion of the sliding block 9.

In this embodiment, the hole of the fixing portion through which the screw rod 8 passes is a through hole having a diameter slightly larger than that of the screw rod 8, and the screw rod 8 in the through hole is made into a flat rod without threads. The length of the section of the screw rod 8 protruding out of the fixing part is the adjustment range of the height of the clamp 6, and the screw rod 8 is designed according to the requirement. The driving wheel 7 is designed to be radially inserted into the fixing part, and the lower side can support the driving wheel 7 to prevent the screw rod 8 from downwards moving.

Further, a guiding tail 11 is further arranged on the outer side of the sliding block 9, the guiding tail 11 is installed in the sliding groove 10, and the lower end of the sliding groove 10 is fixedly connected with the fixing portion. The scheme realizes that the height of the overhanging part is adjusted by one hand, wherein the sliding chute 10 limits the sliding block 9 to rotate along with the screw rod 8, and the sliding block 9 and the guide tail 11 move up and down along the sliding chute 10 when the screw rod 8 rotates. The chute 10 is used for restraining the guide tail 11 to move up and down, the chute 10 is not limited to the structure shown in fig. 6, and other guide grooves and guide rods which can realize the functions can be adopted to replace the guide grooves and the guide rods; the structure that the cantilever part is slotted, the fixed part is fixedly connected with the guide rod, and the like can also be replaced, and the utility model is under the concept of the utility model.

Preferably, referring to fig. 2, the palm support plate 1 is provided with an arc notch corresponding to the palm area, a spherical air bag is installed in the arc notch, connecting lugs are arranged on two sides of the spherical air bag, the connecting lugs are fixedly connected with the palm support plate 1, and an inflation inlet is formed in one side, away from the palm, of the spherical air bag. The scheme air bag controls the inflation amount according to the hand shape, is suitable for more patients, and improves the comfort level.

The supporting and fixing structure accords with the physiological curve of the human hand, the equipment is attached to the curvature of the hand, the whole hand binding and fixing in the prior art is replaced by finger fixing, and the comfort level is high; the U-shaped fixation and the lifting fixation of the tail end of the trocar are facilitated; the winding of the adhesive tape is reduced, and the skin injury is reduced; the 3D printing technology is rapid in molding, can be manufactured according to the hand shape individuation of the infant, can be prefabricated into different models, has adjustable height of the clamp 6, has better adaptability to various hand shapes or hand changes (fat and thin changes and skin swelling), and has high matching degree to various hand shapes and low cost; the design shape has children interest, and the acceptance of the child patient is high; the 3D printing integrated molding design has the advantages that the device structure is stable, the device is not easy to damage, the 3D printing is made of resin materials, the device has slight elasticity, the supporting force is enough, and the pressure damage to the skin can not be generated; the adhesive tape adhered to the outer end of the extension tube is saved, and medical consumables are saved.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the scope of the claims, but rather to cover all equivalent modifications within the scope of the present utility model as defined by the appended claims.

Claims (6)

1. The hand fixing device of the venous indwelling needle comprises a wrist supporting plate (2) and a palm supporting plate (1), wherein the wrist supporting plate (2) is structurally attached to the physiological curve of the inner side of a wrist; the palm support plate (1) is structurally attached to a palm physiological curve; the method is characterized in that: the palm support plate (1) and the wrist support plate (2) have 140-160 degree arc-shaped bending and are integrated panels; a first fixing ring (4) fixed with the thumb is arranged at one side edge of the palm supporting plate (1), and a second fixing ring fixed with the little finger is arranged at the other side edge of the palm supporting plate;

also comprises a curve supporting rod (5), the lower end of the curve supporting rod (5) is connected with the palm supporting plate (1), the upper end is wound on the back of the hand, and the upper end is provided with a clip (6).

2. The iv needle hand fixation device of claim 1, wherein: the clip (6) is a movable C-shaped hook, and the outer end of the retention needle extension tube is pressed and plugged in the clip (6).

3. The iv needle hand fixation device of claim 1, wherein: the curve supporting rod (5) is a steel bar which is not broken by a large force and can not deform the original curve, and the lower end of the curve supporting rod is inserted and fixed on the side edge of the palm supporting plate (1).

4. The iv needle hand fixation device of claim 1, wherein: the curve supporting rod (5) comprises a fixing part fixedly connected with the palm supporting plate (1) and an overhanging part provided with a clip (6); the outer end of the fixed part is provided with a screw rod (8), the lower end of the screw rod (8) is fixedly connected with a poking wheel (7), the poking wheel (7) is embedded in the fixed part, at least a part of circumference of the poking wheel is positioned outside the fixed part, and the screw rod (8) vertically penetrates out of the fixed part; the upper part of the screw rod (8) is sheathed with a sliding block (9) through threads; one end of the overhanging part far away from the clip (6) is fixedly connected with the sliding block (9).

5. The iv needle hand fixation device of claim 4, wherein: the outside of the sliding block (9) is also provided with a guide tail (11), the guide tail (11) is arranged in the sliding groove (10), and the lower end of the sliding groove (10) is fixedly connected with the fixing part.

6. The iv needle hand fixation device of claim 1, wherein: the palm backup pad (1) corresponds palm area and is equipped with the arc breach, installs spherical gasbag in the arc breach, and this spherical gasbag both sides are equipped with the engaging lug, engaging lug and palm backup pad (1) fixed connection, and one side that spherical gasbag kept away from the palm is equipped with the inflation inlet.