KR102701157B1 - A vascular injection-based blood collection device - Google Patents

Abstract

A blood collection device based on a vascular injection, comprising: a cuff into which a patient's arm is inserted; and a holder for sliding a syringe on the upper part of the cuff, wherein the angle of the holder can be lowered from a specific angle to a lower angle, the device comprises: a cuff that penetrates longitudinally to form a receiving tube; a supporter that is longitudinally installed on the cuff and has a guide hole formed on the front side; a cylinder that is vertically installed on the rear side of the supporter and has a vertical rod that is vertically inserted into or discharged from a main body, the cylinder having a rod head on the upper end of the vertical rod; a lower guide that is installed on the front side of the supporter so as to be inclined downwardly toward the front side; a holder that is installed so as to be inclined downwardly toward the front side, but is coupled with the rod head at the lower end of the rear side, and has a slide block formed at the end of the front side, the slide block sliding along the lower guide; and a fixing member that slides on the holder and can fix a syringe, the device comprising a hole formed on the upper end of the cuff opposite the guide hole.
By using the above device, a holder for holding a syringe is provided on the upper part of the cuff, and by inserting the syringe through the holder, it is possible to assist the injection work of a nurse while using a conventional syringe.

Description

{ A vascular injection-based blood collection device }

The present invention relates to a blood collection device based on a vascular injection, which comprises a cuff into which a patient's arm is inserted, and a holder for sliding a syringe on the upper part of the cuff, wherein the angle of the holder is configured to be lowered from a specific angle to a lower angle.

Syringes are generally used for blood collection or for suctioning or injecting liquids. Recently, interest in safety syringes to protect practitioners from infections caused by accidental punctures during medical procedures has been increasing.

Meanwhile, as a method for safely handling conventional injection needles, a method of inserting the injection needle into an injection cap and storing it has been used, but there are frequent cases where the injection needle accidentally pricks the practitioner's hand during the insertion process. Therefore, a safety syringe that can secure the safety of the injection needle and is convenient to operate is required.

To solve these problems, technologies for syringe assemblies that can safely inject while protecting the injection needle have been proposed [Patent Documents 1, 2, 3]. The above-mentioned prior technologies are provided with means for fixing the injection needle to the syringe or a guide means for guiding the injection needle to be accurately inserted into the patient's skin.

However, the above prior art increases the manufacturing cost of the syringe by adding various means to the conventional syringe. In particular, syringes are mostly used only for single use due to the risk of infection, etc.

Therefore, a technology is needed that allows nurses and others to easily give injections using conventional syringes.

Meanwhile, as shown in Fig. 1, for blood collection, etc., a blood vessel injection involves inserting a needle into the body in approximately two steps. First, as shown in Fig. 1(a), a syringe (1) is inserted at an angle of approximately 30 degrees to pierce a blood vessel (4) in the body (3). Next, as shown in Fig. 1(b), when the syringe needle (2) pierces the blood vessel (4), the angle of the syringe (1) is lowered to approximately 15 degrees so that the syringe needle (2) can be stably inserted into the blood vessel (4). That is, after the syringe needle (2) enters the blood vessel (4), the angle of the syringe (1) is laid down.

However, the above conventional technologies only present techniques for easy insertion into the skin without considering the angle at all. Therefore, an injection assistance technique suitable for vascular injection is needed.

Korean Patent Publication No. 10-2023-0021522 (Published on February 14, 2023) Korean Utility Model Registration No. 20-0438750 (announced on March 3, 2008) Korean Patent Registration No. 10-1599499 (announced on March 3, 2016)

The purpose of the present invention is to solve the above-described problems, and to provide a blood collection device based on a vascular injection, which comprises a cuff into which a patient's arm is inserted, and a holder for sliding a syringe on the upper part of the cuff, wherein the angle of the holder is configured to be lowered from a specific angle to a lower angle.

In addition, an object of the present invention is to provide a blood collection device based on a vascular injection, which has a sliding block at the front end of a stand, a lower guide for allowing the sliding block to move obliquely, and a vertical cylinder at the rear end of the stand, so that when the rear end of the stand is pressed, the rear end of the stand is lowered and at the same time the sliding block moves to the floor.

In order to achieve the above object, the present invention relates to a blood collection device based on a vascular injection, comprising: a cuff that penetrates longitudinally to form a receiving tube; a support that is installed longitudinally on the cuff and has a guide hole formed on a front side; a cylinder that is installed vertically on a rear side of the support and has a vertical rod that is vertically inserted or discharged into a main body, the cylinder having a rod head on an upper end of the vertical rod; a lower guide that is installed on a front side of the support so as to be inclined downwardly on the front side; a holder that is installed so as to be inclined downwardly on the front side, is coupled with the rod head on a lower part of the rear side, and has a slide block formed on an end of the front side, the slide block sliding along the lower guide; and a fixing portion that slides on the holder and can fix a syringe, the holder characterized in that a hole is formed on an upper end of the cuff opposite the guide hole.

In addition, the present invention is characterized in that, in a blood collection device based on a vascular injection, the lower guide is configured such that, when the cylinder is in a discharge state in which the vertical rod is discharged, the slide head is positioned at the upper end of the lower guide, and when the cylinder is in an insertion state in which the vertical rod is inserted, the slider head is positioned at the lower end of the lower guide, and the angle formed by the lower guide and the support member is greater than the angle formed by the support member of the stand.

In addition, the present invention is characterized in that, in a blood collection device based on a vascular injection, the slide block is formed on both sides of the end of the front side of the holder, and the lower guide is formed downward on the front side from both sides of the end of the front side of the holder.

In addition, the present invention is characterized in that, in a blood collection device based on a vascular injection, a spring is provided within the cylinder body, a stopper is provided on one side of the lower end of the vertical bar, a stopping hole is formed on one side of the lower end of the cylinder body, and the stopper and the stopping hole are positioned on the same vertical line.

In addition, the present invention is characterized in that, in a blood collection device based on a vascular injection, an air bladder is provided within the cuff, and air is injected into the air bladder by pumping it by a pump.

In addition, the present invention is characterized in that the blood collection device based on a vascular injection further comprises a shield installed on the front side of the guide hole of the support.

As described above, according to the blood collection device based on a vascular injection according to the present invention, by providing a holder for holding a syringe on the upper part of a cuff and inserting the syringe by means of the holder, the effect of being able to assist a nurse's injection work while using a conventional syringe as is is obtained.

In addition, according to the blood collection device based on a vascular injection according to the present invention, simply pressing the rear part of the holder causes the holder to advance while lowering from the initial angle, thereby automatically inserting the syringe at the blood collection injection angle, thereby making the blood collection injection operation easier.

Figure 1 is a drawing illustrating a conventional method of administering a vascular injection.
FIG. 2 is a front view of a blood collection device based on a vascular injection according to an embodiment of the present invention.
FIG. 3 is a side view of a blood collection device based on a vascular injection according to one embodiment of the present invention.
FIG. 4 is a drawing showing a state in which a human arm is inserted into a blood collection device based on a vascular injection according to one embodiment of the present invention.
FIG. 5 is a configuration diagram of a cylinder according to one embodiment of the present invention, including configuration diagrams for (a) a discharge state and (b) an insertion state.
Figure 6 is a perspective view showing the combined state of a support, a lower guide, and a cylinder according to one embodiment of the present invention.
FIG. 7 is a drawing explaining the configuration and operating principle of a lower guide according to one embodiment of the present invention.
Figure 8 is a plan view of a support according to one embodiment of the present invention.
FIG. 9 is a drawing showing a process of injecting a blood vessel using a blood collection device according to one embodiment of the present invention.

Hereinafter, specific details for implementing the present invention will be described with reference to the drawings.

In addition, in describing the present invention, the same parts are given the same reference numerals, and their repeated description is omitted.

First, the configuration of a blood collection device based on a vascular injection according to an embodiment of the present invention will be described with reference to FIGS. 2 to 7.

As shown in FIGS. 2 and 3, a blood collection device (100) according to an embodiment of the present invention comprises a cuff (10) having an air bladder (12) in an internal receiving tube (11), a holder (30) for holding a syringe (90), a lower guide (50) installed on the front side of the holder (30), and a cylinder (60) installed on the lower rear side of the holder (30). In addition, the device further comprises a shield (70) for covering an injection needle (91) from the patient's view.

In Fig. 2, the support (20) is provided in the longitudinal direction of the cuff (10). At this time, for the convenience of the following explanation, the left side of Fig. 2 is referred to as the front side, and the right side is referred to as the rear side. That is, when viewed in the longitudinal direction, the left side can be considered the front side and the right side can be considered the rear side.

First, as shown in FIGS. 2 and 3, the cuff (10) is formed with the interior penetrated left and right. The interior of the cuff (10) is called a receiving tube (11). That is, the receiving tube (11) is configured to penetrate left and right so that a person's or patient's arm can be inserted.

In addition, an air bladder (12) is provided at the bottom of the receiving tube (11). Air is injected into the air bladder (12) by a pump (13). Therefore, when a nurse or the like pumps using the pump (13), the air bladder (12) inflates. In addition, the air bladder (12) is provided with a release valve (not shown) or the like for discharging air, so that when the valve is opened, the internal air can be discharged to the outside. The air bladder (12) is configured with the structure of a typical air bladder provided in a blood pressure monitor or the like.

As shown in Fig. 4, a person's arm (200) is inserted into the receiving tube (11) of the cuff (10). At this time, since the air bladder (12) is in the receiving tube (11), the person's arm (200) is placed on top of the air bladder (12). Then, when a nurse or the like pumps with a pump (13), air is injected into the air bladder (12) and it inflates. Then, the person's arm (200) rises up and comes into contact with the upper side of the cuff (10) or the inner upper side of the receiving tube (11). Therefore, the person's arm (200) inserted into the cuff (10) through the air bladder (12) can be pressed against the inner upper side of the cuff (10).

Next, as shown in FIG. 2 or FIG. 5, the cylinder (40) is installed vertically on the support (20), particularly, on the rear side or right side of the support (20).

The cylinder (40) is composed of a main body (41) and a vertical rod (42) that is inserted into the main body (41) or discharged to the outside. In addition, a spring (46) is provided in the cylinder main body (41), one end of which is connected to the lower end of the vertical rod (42), and the other end is connected to the inner floor (bottom) of the cylinder main body (41). If no external force is applied, the vertical rod (42) is maintained in a state of being discharged to the outside by the spring (46). In addition, if a downward force is applied to the rod head (43), the vertical rod (42) moves downward and is inserted into the inside of the cylinder main body (41).

Additionally, preferably, the seal head (43) is configured to be wider than the diameter of the cylinder body (41) so as not to be inserted into the cylinder body (41).

Meanwhile, a stopper (44) is provided on the lower side of the vertical bar (42), and a stopping hole (45) is formed on the lower side of the cylinder body (41). At this time, the stopper (44) and the stopping hole (45) are positioned on the same vertical line. Therefore, when the vertical bar (42) moves downward, the stopper (44) meets the stopping hole (45), and a part of the stopper (44) protrudes into the stopping hole (45). That is, when the vertical bar (42) is inserted deeply, it is fixed by the stopper (44) and does not return upward. In addition, when the stopper (44) is pressed while a part of the stopper (44) is exposed to the stopping hole (45), the vertical bar (42) rises upward by the spring (44) and returns to the discharged state.

Hereinafter, for convenience of explanation, the state in which the vertical rod (42) is fully discharged as in Fig. 5(a) is referred to as the discharge state, and the state in which the vertical rod (42) is inserted and fixed by the stopper (44) as in Fig. 5(b) is referred to as the inserted state.

In addition, preferably, the inside of the cylinder body (41) is configured to be in a nearly vacuum or sealed state. That is, the area where air flows in and out of the cylinder body (41) is configured to be very small. In this case, since the inflow and outflow of air is restricted and a lot of time is required, the speed is significantly slowed down when the vertical bar (42) is inserted or discharged.

Next, as shown in Fig. 2, the stand (30) is installed at an angle above the cuff (10). In addition, a fixing part (60) capable of fixing a syringe (90) is provided on the upper surface of the stand (30).

The fixing member (60) is configured with a fixing clip, etc., and enables fixing the syringe (90). That is, it is a fixing clip configured with an elastic body, and the syringe (90) can be mounted by spreading the clip, and the syringe (90) can be fixed by releasing the clip. Any means that can attach and detach a typical syringe (90) can be applied to the fixing member (60).

In addition, a longitudinal slide guide (not shown) is provided on the upper surface of the stand (30), so that the fixing part (60) can be moved longitudinally on the upper surface of the stand (30). In particular, a nurse or the like can hold the fixing part (60) by hand and move it longitudinally.

Additionally, the stand (30) is installed so as to be tilted toward the front (left side in Fig. 2).

As shown in Fig. 6, a slide block (31) is provided at the front end or left end of the stand (30). Preferably, a slide block (31) is formed on each side of the left end of the stand (30). The slide block (31) is coupled to the lower guide (50) and can be moved by sliding along the lower guide (50).

In addition, as shown in Fig. 2, the lower part of the rear side of the stand (30) is supported by a cylinder (40). That is, the lower part of the rear side of the stand (30) is coupled with the bong head (43) of the cylinder (40). At this time, the bong head (43) of the cylinder (40) is coupled so as to be able to rotate within a predetermined range at the lower part of the rear side of the stand (30). In particular, the angles of the stand (30) and the cylinder (40) in Fig. 7 (a) and (b) are different from each other. That is, the angle between the stand (30) and the cylinder (40) in Fig. 7 (b) is larger than the angle in Fig. 7 (a). The cylinder (40) is configured to be rotatable at the lower end of the rear side of the holder (30) within a range between the engagement state with the seal head (43) when the cylinder (40) is maximally extended (discharge state) and the engagement state of the seal head (43) when the cylinder (40) is minimally contracted (insertion state).

Next, as shown in Fig. 2, the lower guide (50) is fixedly installed on the support (20). At this time, the lower guide (50) is installed at an angle greater than the angle of the stand (30) with respect to the support (20).

In addition, the lower guide (50) is formed as a sliding guide, and slides the slide block (31) coupled to the guide. That is, the slide block (31) can be moved by sliding between both ends of the lower guide (50).

In addition, one end of the lower guide (50) is fixed to the support (20). In addition, the other end of the lower guide (50) extends to the position of the slide block (31) of the holder (30) in the discharge state of the cylinder (30).

In addition, preferably, it is provided in both directions on the lower side of the front side of the stand (30) of the lower guide (50). That is, the lower guide (50) is provided with two guides and is formed to face each other, so that the slide blocks (31) can be guided and slid on both sides, respectively.

As shown in Fig. 7, the position and length of the lower guide (50) can be obtained experimentally.

That is, Fig. 7(a) shows a state in which the cylinder (40) is fully discharged, and Fig. 7(b) shows a state in which the cylinder (40) is fully inserted. That is, the positions of the bong head (43) in each state are B1 and B2, respectively. In addition, the positions of the slide block (31) in each state are A1 and A2, respectively. Therefore, in each state, the stand (30) comes down from above and the angle formed with the support (20) becomes smaller.

At this time, the position of the slide block (31) moves from A1 to A2. Accordingly, the trajectory moved by the lower guide (50) moves from position A1 to A2. Accordingly, a straight line from position A1 to position A2 corresponds to the position and length of the lower guide (50).

In particular, when the bong head (43) is moved from position B1 to position B2, the angle formed with the vertical at the stand (30) gradually increases, so that the position of the slide block (31) is pushed further forward. At this time, since the lower guide (50) is formed to be inclined toward the front, the slide block (31) is pushed toward the front and slides along the lower guide (50). Then, when the bong head (43) is completely inserted and moved to position B2, the slide block (31) is automatically positioned at position A2. Therefore, even without applying a special force to the slide block (31), simply by applying a force downward to the bong head (43), the slide block (31) is automatically slid forward and downward along the lower guide (50).

Next, as shown in Fig. 2, the support (20) is installed longitudinally on the upper surface of the cuff (10). In addition, as shown in Fig. 2 or Fig. 8, a longitudinal guide hole (21) is formed in the center of the front side (or the left side in Fig. 2) of the support (20).

As shown in Fig. 2 or Fig. 7, the guide hole (21) is formed wide to the left and right centered on the position where the injection needle (91) of the syringe (90) passes. In addition, the upper part of the cuff (10) or the receiving tube (11) also forms a hole (not shown) in the same way at the part that comes into contact with the guide hole (21). Therefore, as shown in Fig. 7, the injection needle (91) of the syringe (90) passes through the guide hole (21) and comes into contact with the arm (200) of the person inserted into the cuff (10).

Next, the shield (70) is installed obliquely on the front side of the support (20) (left side of FIG. 2), particularly, on the front side or left side of the guide hole (21). That is, it is installed so as to be perpendicular to the patient's line of sight. The patient cannot directly check the process of inserting the injection needle (91) with the naked eye due to the shield (70).

Next, a process for injecting a blood vessel using a blood collection device according to one embodiment of the present invention will be described with reference to FIG. 9.

First, the patient inserts his or her arm into the cuff (10). A nurse or the like aligns the part of the patient's arm where the injection is to be given (the blood vessel part) with the guide hole (21) and pumps the bladder (12) with the pump (13). At this time, while pumping with the pump (13), the injection site can be aligned with the guide hole (21). Then, the pump (13) is pumped until the patient's arm is pressed against the inner upper part of the cuff (10).

Next, a nurse or the like fixes the syringe (90) to the fixing member (60) on the stand (30). Thus, a state like that in Fig. 9(a) is created.

Next, as shown in Fig. 9(a), the fixed part (60) or syringe (90) is slid down along the stand (30).

Next, as shown in Fig. 9(b), the injection needle (61) is slid through the guide hole (21) until it penetrates the vein. Then, it stops when it penetrates the vein. Even an unskilled nurse can easily tell whether or not the vein has been penetrated. This is easy to tell because pressure is applied when sliding and then suddenly decreases when it is penetrated.

Next, as shown in Fig. 9(c), when the blood vessel is pierced, the sliding is stopped and the rear side of the holder (30) is pressed downward. At this time, the cylinder head (43) of the cylinder (40) is pressed by the downward pressing force, and the vertical bar (42) is lowered and inserted into the cylinder body (41). At this time, the vertical bar (42) is lowered slowly so that the internal air must escape, thereby slowly progressing the blood vessel insertion.

As shown in Fig. 9(d), when the vertical bar (42) is finally fully inserted into the cylinder body (41) and in the inserted state, the vertical bar (42) of the cylinder (40) is fixed by the stopper (44), and the holder (30) is fixed from below. At this time, the angle of the injection needle (21) of the syringe (60) becomes smaller than in Fig. 9(c). Preferably, it is about 30 degrees in Fig. 9(c) and lowered to about 15-20 degrees in Fig. 9(d).

Additionally, as seen in Fig. 9(d), the injection needle (21) is stably positioned lying down within the blood vessel.

Above, the invention made by the inventor has been specifically described according to the above embodiments, but the present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit thereof.

10: Cuff 11: Receptacle
12 : bladder 13 : pump
20: Support 21: Guide hole
30 : Stand 31 : Slide Block
40: Cylinder 41: Cylinder body
42: Vertical bar 43: Bar head
44: Stopper 45: Stopping hole
50 : Lower guide
60 : Fixed part 70 : Cover
90 : Syringe 91 : Injection needle
100 : Blood collection device

Claims (6)

In a blood collection device based on a vascular injection,
A cuff that penetrates lengthwise to form a receiving tube;
A support member installed longitudinally on the above cuff and having a guide hole formed on the front side;
A cylinder vertically installed on the rear side of the support and comprising a main body and a vertical rod vertically inserted or discharged into the main body, wherein the upper end of the vertical rod has a rod head;
A lower guide formed by a sliding guide, which is fixedly installed on the support, but is installed so as to be inclined downward on the front side of the support;
A stand installed so as to be inclined downward toward the front side, the lower part of the rear side being coupled with the above-mentioned bong head, and a slide block formed at the end of the front side, the slide block sliding along the lower guide; and,
It includes a fixing part that slides on the above stand and can fix a syringe,
A hole is formed at the top of the cuff opposite the guide hole,
The lower guide is configured such that when the cylinder is in a discharge state in which the vertical rod is discharged, the slide block is positioned at the upper end of the lower guide, and when the cylinder is in an insertion state in which the vertical rod is inserted, the slide block is positioned at the lower end of the lower guide.
The angle formed between the support of the above lower guide and the above support member is greater than the angle formed between the support of the above stand and the above support member.
The above slide blocks are formed on both sides of the end of the front side of the above stand,
The above lower guide is formed from both sides of the front end of the above stand downward on the front side,
A spring is provided inside the body of the above cylinder, so that the vertical bar is maintained in a state of being discharged to the outside by the spring unless an external force is applied.
A stopper is provided on one side of the lower end of the vertical bar, and a stopping hole is formed on one side of the lower end of the main body of the cylinder, and the stopper and the stopping hole are positioned on the same vertical line, so that when the vertical bar is inserted downwards and the stopper and the stopping hole meet, the vertical bar is fixed by the stopper and does not return upward, and when the stopper is pressed while a part of the stopper is exposed to the stopping hole, the vertical bar rises upward by the spring and returns to the discharged state.
A blood collection device based on a vascular injection, characterized in that an air bladder is provided only in the lower part of the cuff, and the air bladder is pumped by a pump to inject air.
delete delete delete delete In the first paragraph,
A blood collection device based on a blood vessel injection, characterized in that it further comprises a shield installed on the front side of the guide hole of the support.