CN210962001U - Auxiliary device for arm radial artery puncture - Google Patents

Abstract

The utility model provides an auxiliary device for puncturing the radial artery of the arm, which comprises a base, a column, an arm support frame and a locking device; the bottom of the base is provided with a roller; the column is fixed on the base, and the side of the column is provided with a vertical direction The chute; the arm support frame includes a support plate, a connecting plate, a sliding plate, a restraint belt 1, a restraint belt 2, and a protrusion. The supporting plate is horizontally arranged on the outside of the column corresponding to the sliding groove; the sliding plate is embedded in the sliding groove and can follow the sliding groove. Move up and down; one end of the connecting plate protrudes from the slot of the chute into the chute and is fixedly connected with the slide plate, and the other end is fixedly connected with the support plate; the first locking device includes a screw rod, a nut, and a backing plate, and one end of the screw rod is vertical It is fixed on the sliding plate, the other end protrudes out of the chute from the slot of the chute, the nut one is screwed on the screw one, and the backing plate is sleeved on the screw one. The utility model has the advantages of reasonable structure, simple operation and complete functions, which can not only adjust the height of the arm placement, but also firmly fix the upper limb.

Description

An auxiliary device for arm radial artery puncture

technical field

The utility model relates to the field of medical instruments, in particular to an auxiliary device for puncturing the radial artery of an arm.

Background technique

Radial artery puncture is often used for coronary heart disease interventional therapy, invasive blood pressure monitoring in anesthesiology department, and puncture blood collection during arterial blood gas analysis. Arterial blood gas analysis can objectively reflect the nature and degree of respiratory failure, and is a reliable method to determine whether patients have hypoxia and carbon dioxide retention. It is of great significance for guiding oxygen therapy, adjusting various parameters of mechanical ventilation, and correcting acid-base and electrolyte imbalances. In clinical practice, radial artery puncture is often used to collect arterial blood samples for blood gas analysis.

During the conventional puncture, the patient's arm is naturally flat. Since the operator holds the needle with the right hand and the left hand index finger needs to touch the radial artery pulsation, the skin at the puncture site cannot be tightened, so that the skin at the puncture site is loose, and the radial artery cannot be well fixed. When the radial artery slides easily, repeated puncture or puncture failure is easy; when the operator's left index finger is placed flat on the radial artery, the range of the selected puncture point increases accordingly, and it is difficult to find the best puncture point, which is also the cause of repeated punctures and failures. At present, after improving the method, the patient's arm is straightened, raised, and slightly outwardly extended; the palm of the finger is pressed down, and the dorsal curvature of the palm is in a reversed arcuate shape, so that the skin at the puncture site is naturally tightened, and the radial artery blood vessels are also straightened and fixed accordingly. It is not easy to roll during puncture, and the radial artery is also closer to the body surface at this time, and it is easy to grasp the depth of needle insertion.

However, there is currently no clinical auxiliary device that can simultaneously raise the arm, press the palm of the finger downward, and the dorsum of the palm is curved in an inverted arcuate shape, so that the skin at the puncture site is naturally tightened.

Utility model content

In view of the above problems, the purpose of the present utility model is to provide an auxiliary device for radial artery puncture of the arm, which has a reasonable structure and is easy to operate, which can not only adjust the height of the arm, assist the hand to set the puncture position, but also firmly fix the upper limb. . The specific technical solutions are as follows:

An auxiliary device for arm radial artery puncture, comprising a base, a column, an arm support frame, and a locking device; the bottom of the base is provided with a roller with a braking device; A chute with a T-shaped cross section is arranged in the vertical direction; the arm support frame includes a support plate, a connecting plate, and a slide plate, and the support plate is horizontally arranged on the outside of the column corresponding to the chute; the slide plate is embedded in the chute It can move up and down along the chute; one end of the connecting plate protrudes from the slot of the chute into the chute and is fixedly connected with the slide plate, and the other end is fixedly connected with the support plate; the support plate and the connecting plate can slide along the slide plate. The groove moves up and down; two sets of restraint belts for constraining the palm and two restraint belts for restraining the front end of the arm are respectively provided on both sides of the support plate. It is used to restrain the arm and prevent the arm from sliding; in order to facilitate the puncture, the puncture point is exposed, and the comfort of the patient's hand is improved; the upper surface of the support plate is also provided with an elastic protrusion for supporting the wrist to support the wrist, and the upper surface of the protrusion is It is an arc surface; the first locking device includes a screw rod, a nut, and a backing plate. One end of the screw rod is vertically fixed on the slide plate, and the other end extends out of the chute from the slot of the chute. The first cap is screwed on the first screw; the backing plate is sleeved on the first screw and located between the first nut and the upright column.

Further, in order to facilitate access to alcohol, iodophor, cotton swabs, dressings, etc. during puncture, and make the operation more convenient, the auxiliary device is also provided with a carrier plate for placing alcohol, iodophor, cotton swabs, dressings, and a carrier for placing The sharps box bracket of the sharps box; the object carrier and the sharps box bracket are horizontally fixed on the other side of the column relative to the chute, and the object carrier is located above the sharps box bracket.

Further, in order to fold the sharps box bracket after puncturing to save space; the sharps box bracket includes a support bracket, a mounting plate, a mounting box, and a locking device for supporting the sharps box; the installation The box is vertically fixed on the column, and the side of the installation box that is not in contact with the column is open and the other sides are closed. The front end of the strip-shaped through hole is close to the end of the extension section of the side plate of the installation box; one end of the installation plate is parallel to the edge of the fixed bearing bracket, and the other end extends into the installation box from the opening of the installation box and the end There is also a positioning hole parallel to the column; the second locking device includes a second screw and a second nut. One end protrudes out and passes through the bar-shaped through hole on the other side of the installation box, and is then connected with the second threaded nut.

When puncturing, hold the bearing bracket and push the mounting plate into the installation box, tighten the second nut, and put the sharps box on the bearing bracket; after puncturing, remove the sharps box and loosen the second nut , grab the bearing bracket and pull it outward, and pull the mounting plate out of the installation box. Since the two ends of the mounting plate are hinged in the strip through holes of the extended section of the side plate of the installation box through the second screw, after releasing the bearing bracket, Under the action of gravity, the support bracket and the mounting plate naturally rotate downward and lean against the upright column, so as to realize the folding of the sharps box bracket.

Further, it also includes an infusion stand, the infusion stand is locked on the top of the upright post by a locking screw and can be retracted into the upright post.

The utility model has the advantages of reasonable structure, simple operation and complete functions, which can not only adjust the height of the arm placement, but also firmly fix the upper limb.

Description of drawings

Fig. 1 is the structural representation of a kind of auxiliary device for puncturing the radial artery of the arm of the present invention;

Fig. 2 is the structural representation of the arm support frame on the auxiliary device for puncturing the radial artery of the arm of the present invention;

3 is a schematic diagram of the exploded structure of a sharps box bracket on an auxiliary device for arm radial artery puncture of the present utility model;

As shown in the picture: 1-base, 2-post, 3-chute, 4-arm support frame, 41-support plate, 42-connecting plate, 43-slide plate, 44-protrusion, 45-restraining belt one, 46 - Restraining belt two, 5-locking device one, 51-nut one, 51-backing plate, 53-screw one, 6-infusion stand, 7-locking screw, 8-object plate, 9-sharp box Bracket, 91-bearing bracket, 92-installation plate, 93-positioning hole, 94-installation box, 95-strip through hole, 96-screw two, 97-nut, 10-roller.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, an auxiliary device for arm radial artery puncture of the present invention includes a base 1, a column 2, an arm support frame 4, and a locking device 1 5; the bottom of the base 1 is provided with a belt brake The roller 10 of the device; the column 2 is vertically fixed on the base 1, and the side of the column 2 is provided with a T-shaped chute 3 in the vertical direction; the arm support frame 4 includes a support plate 41, a connecting plate 42. The sliding plate 43, the support plate 41 is horizontally arranged on the outside of the column 2 corresponding to the chute 3; the sliding plate 43 is embedded in the chute 3 and can move up and down along the chute 3; The slot of the slot 3 extends into the chute 3 and is fixedly connected with the slide plate 43, and the other end is fixedly connected with the support plate 41; the support plate 41 and the connection plate 42 can move up and down along the slide slot 3 with the slide plate 43; the support plate 41 Two sets of restraint belts 45 for restraining the palm and two restraint belts 46 for restraining the front end of the arm are respectively provided on both sides. To prevent the arm from sliding; in order to facilitate the puncture, the puncture point is exposed, and the comfort of the patient's hand is improved; the upper surface of the support plate 41 is also provided with an elastic protrusion 44 for supporting the wrist to support the wrist. The upper surface of the protrusion 44 is an arc surface; the locking device 1 5 includes a screw rod 1 53, a nut 1 51 and a backing plate 52, one end of the screw rod 1 53 is vertically fixed on the slide plate 43, and the other end protrudes from the slot of the chute 3 Outside the chute 3 , the nut 1 51 is threadedly connected to the screw 1 53 ;

Before the puncture, place the arm on the arm support frame 4 and straighten it out, loosen the nut 1 51, then the arm support frame 4 can move up and down along the chute 3, adjust it to a suitable height, and then tighten the nut 1. 51, that is, the adjustment of the height of the arm is realized; then the palm is facing down, and the wrist is placed on the elastic protrusion 44, so that the palm is raised and slightly spread out; After reversing the arcuate shape, use restraint belt 1 45 to tie the back of the hand to fix the palm position, and then use restraint belt 2 46 to tie the arm, so that the skin at the puncture site is naturally taut, and the radial artery blood vessels are also straightened and fixed accordingly. It is not easy to roll, and the radial artery is also closer to the body surface at this time, fully exposing the puncture point, which is helpful for the operator to grasp the depth of needle insertion (the wrist is raised by the elastic protrusion 44, the palm is raised, and then the back of the hand is pressed down, and the restraint belt 45 The second restraining band 46 is respectively tied to the front and back of the wrist, so that the radial artery blood vessels will protrude accordingly, so as to facilitate the needle and improve the puncture efficiency) and then the puncture can be performed.

Further, in order to facilitate access to alcohol, iodophor, cotton swabs, dressings, etc. during puncture, making the operation more convenient, the auxiliary device is also provided with a carrier plate 8 for placing alcohol, iodophor, cotton swabs, dressings, and The sharps box bracket 9 for placing the sharps box; the object plate 8 and the sharps box bracket 9 are horizontally fixed on the other side of the column 2 relative to the chute 3, and the object plate 8 is located above the sharps box bracket 9 .

Further, in order to fold the sharps box bracket 9 after puncturing to save space; the sharps box bracket 9 includes a support bracket 91 for supporting the sharps box, an installation plate 92, an installation box 94, and a locking device Two; the installation box 94 is vertically fixed on the column 2, and the side of the installation box 94 that is not in contact with the column 2 is open and other surfaces are closed, the two sides of the installation box 94 extend outward, and the length of the extension is greater than the thickness of the installation plate 92 There are also strip-shaped through holes 95 on both sides of the installation box 94, the front end of the strip-shaped through holes 95 is close to the end of the extension section of the side plate of the installation box 94; one end of the installation plate 92 is parallel to the edge of the fixed bearing bracket 91 , the other end extends into the installation box 94 from the opening of the installation box 94, and this end is also provided with a positioning hole 93 parallel to the column 2; the second locking device includes a second screw 96 and a second nut 97. The screw The second 96 extends from the bar-shaped through hole 95 on one side of the installation box 94 into the positioning hole 93, and then protrudes from the other end of the positioning hole 93 and passes through the bar-shaped through hole 95 on the other side of the installation box 94 to connect with the nut Two 97 threaded connections.

When puncturing, hold the bearing bracket 91 and push the mounting plate 92 into the installation box 94, tighten the second nut 97, and put the sharps box on the bearing bracket 91; after the puncturing, remove the sharps box, Loosen the second nut 97, grab the bearing bracket 91 and pull it outward, and pull the mounting plate 92 out of the mounting box 94. Since the two ends of the mounting plate 92 are hinged to the bar-shaped passages of the extended section of the side plate of the mounting box 94 through the second screw 96, In the hole 95, after the hand releases the support bracket 91, under the action of gravity, the support bracket 91 and the mounting plate 92 naturally rotate downward and lean against the upright column 2 to realize the folding of the sharps box bracket 9.

Further, the infusion stand 6 is also included. The infusion stand 6 is locked on the top of the upright column 2 by the locking screw 7 and can be retracted into the upright column 2 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (4)

1. The utility model provides an arm auxiliary device for radial artery puncture which characterized in that: comprises a base (1), a column (2), an arm support frame (4) and a locking device I (5); the bottom of the base (1) is provided with a roller (10) with a braking device; the upright post (2) is vertically fixed on the base (1), and a sliding chute (3) with a T-shaped cross section is arranged on the side surface of the upright post (2) along the vertical direction; the arm support frame (4) comprises a support plate (41), a connecting plate (42) and a sliding plate (43), and the support plate (41) is horizontally arranged on the outer side of the upright post (2) corresponding to the sliding groove (3); the sliding plate (43) is embedded in the sliding groove (3) and can move up and down along the sliding groove (3); one end of the connecting plate (42) extends into the sliding chute (3) from the notch of the sliding chute (3) to be fixedly connected with the sliding plate (43), and the other end of the connecting plate is fixedly connected with the supporting plate (41); the supporting plate (41) and the connecting plate (42) can move up and down along the sliding chute (3) along with the sliding plate (43); two groups of restraint belts I (45) used for restraining palms and restraint belts II (46) used for restraining the front ends of the arms are arranged on the two sides of the supporting plate (41); the upper surface of the supporting plate (41) is also provided with an elastic bulge (44) for supporting the wrist; the upper surface of the bulge (44) is an arc surface; the locking device I (5) comprises a screw rod I (53), a nut I (51) and a base plate (52), one end of the screw rod I (53) is vertically fixed on the sliding plate (43), the other end of the screw rod I (53) extends out of the sliding groove (3) from a notch of the sliding groove (3), and the nut I (51) is in threaded connection with the screw rod I (53); the backing plate (52) is sleeved on the first screw rod (53) and is located between the first screw cap (51) and the upright post (2).

2. The auxiliary device for radial arm artery puncture according to claim 1, wherein: the multifunctional medical instrument box also comprises a carrying plate (8) for placing alcohol, iodophor, cotton swabs and dressing and a sharp instrument box bracket (9) for placing a sharp instrument box; the carrying plate (8) and the sharp instrument box support (9) are horizontally fixed on the other side surface of the upright post (2) relative to the sliding groove (3), and the carrying plate (8) is positioned above the sharp instrument box support (9).

3. The auxiliary device for radial arm artery puncture according to claim 2, wherein: the sharp instrument box support (9) comprises a support bracket (91) for supporting a sharp instrument box, a mounting plate (92), a mounting box (94) and a locking device II; the mounting box (94) is vertically fixed on the upright post (2), and the side of the mounting box (94) which is not contacted with the upright post (2) is opened, while the other sides are closed; two side plates of the installation box (94) extend outwards, the length of the extending section is greater than the thickness of the installation plate (92), strip-shaped through holes (95) are further formed in the two side plates of the installation box (94), and the front ends of the strip-shaped through holes (95) are close to the end parts of the extending sections of the side plates of the installation box (94); one end of the mounting plate (92) is fixed on the edge of the support bracket (91) in parallel, the other end of the mounting plate extends into the mounting box (94) from the opening of the mounting box (94), and the end is also provided with a positioning hole (93) parallel to the upright post (2); the second locking device comprises a second screw rod (96) and a second screw cap (97), wherein the second screw rod (96) extends into the positioning hole (93) from the strip-shaped through hole (95) on one side of the installation box (94), extends out from the other end of the positioning hole (93) and penetrates through the strip-shaped through hole (95) on the other side of the installation box (94), and then is in threaded connection with the second screw cap (97).

4. An auxiliary device for radial arm artery puncture according to claim 3, wherein: the infusion support is characterized by further comprising an infusion support (6), wherein the infusion support (6) is locked at the top end of the upright post (2) through a locking screw (7) and can be retracted into the upright post (2).

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