JP5114632B2 - Intravenous Vena Cava Filter Catheter Drip Valve Fixing Tool - Google Patents

Description

  The present invention relates to a drip valve fixing device for fixing a drip valve of an inferior internal vena cava filter catheter to the head of a human body.

  In the treatment of pulmonary thromboembolism and deep vein thrombosis, a permanent indwelling type, recoverable type or temporary indwelling type inferior vena cava filter is used. This inferior vena cava filter is a device that is fixed in the inferior vena cava and captures an embolus such as a thrombus before it flows to the lungs. It is inserted into the vena cava and placed inside.

  Among the inferior vena cava filters, the temporary indwelling inferior vena cava filter (referred to as a temporary inferior vena cava filter) is provided with a filter at the distal end of the catheter and is called a hemostat valve at the proximal end. An infusion valve is used. In this temporary inferior vena cava filter, a drip line connected to a drip bottle or drip bag is connected to a drip valve to continuously drip a physiological saline solution or the like to which a blood coagulation inhibitor (such as heparin) is added. Therefore, clogging due to thrombus formation in the filter portion is prevented.

  Conventionally, in the case of a temporary indwelling sub-cervical vena cava filter, it has been necessary to externally fix an infusion valve at the head, and it has been individually devised and fixed at each site. For example, as described in Non-Patent Document 1, with a catheter inserted into the internal jugular vein and fixed at the puncture portion, a drip valve provided at the proximal end of the catheter is wrapped around the head with a band or the like It was fixed. As a result, the catheter is fixed at two positions, ie, the puncture portion and the head portion of the catheter, and the filter is prevented from being pulled and moved by the movement of the jaw or the weight of the filter itself. In such a wearing state, for example, indwelling for a maximum of two weeks is performed.

Shintaro Watanabe, “Inferior vena cava filter”, Heart View, Medical View, June 2006, Vol. 10, No. 7, p. 93-96

The following problems remain in the conventional technology.
That is, conventionally, when a filter catheter is placed in the inferior internal vena cava, a drip valve is simply fixed to the head using a band, but is simply fixed with a band. There are inconveniences such that the filter portion is unstable and easily displaced, and the filter portion placed in a predetermined site may move due to the catheter being pulled. In particular, since the infusion valve is simply fixed to the side of the head with a band, the infusion valve may stand upright on the side of the head, and the infusion valve may hit or get caught around. And unstable. In addition, the operation of winding the band around the head and fixing the infusion valve takes time, and there is a disadvantage that both the patient and the nursing side have a large time loss and a mental load.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an infusion valve fixing tool for an inferior internal vena cava filter catheter which can be easily attached while preventing the displacement of a fixed infusion valve. And

  The present invention employs the following configuration in order to solve the above problems. That is, the drip valve fixing device for the subclavian vena cava filter catheter of the present invention includes a catheter body having a filter portion at the distal end and a drip valve attached to the proximal end of the catheter body. A valve fixing member for fixing the drip valve, and a cap portion which is installed on the upper portion and can be mounted on the head of a human body.

  That is, in the drip valve fixing device of this inferior internal vena cava filter catheter, since the valve fixing member for fixing the drip valve is provided on the upper part and has a cap portion that can be worn over the head of the human body, By simply fixing the drip valve to the valve fixing member and covering the head with a cap, the drip valve is difficult to shift on the head and can be positioned and fixed easily in a short time. Can do.

  In addition, the drip valve fixing device for the inferior internal vena cava filter catheter of the present invention is configured such that the cap portion can reach and support the lower part of the lower occipital bone of the head when worn. Is preferred. In other words, in the infusion valve fixing tool for this inferior internal vena cava filter catheter, the cap part is shaped to be able to support this part by reaching the lower part of the lower occipital bone of the head in the wearing state. When the cap portion is in contact with the lower side of the lower part of the occipital bone, which is a convex portion of the occipital region, the entire cap portion is difficult to shift upward. As a result, it is not necessary to strongly tighten the hat portion on the head, and even when a slight force is applied to the hat portion when the patient lies down, a stable fixed state can be maintained.

  Furthermore, in the drip valve fixing device for the inferior internal vena cava filter catheter of the present invention, the cap portion has a occipital side band portion passing under the occipital bone lower portion of the head in the mounted state. It is characterized by. That is, in this IV drip valve fixing device for the inferior internal vena cava filter catheter, the occipital band part passes under the occipital bone lower part, so the entire cap part is shifted according to the shape of the patient's head and the lower occipital bone part The lower part of the occipital bone can be supported by the occipital band part without contacting the lower part of the occipital region.

  In addition, the drip valve fixing device for the inferior internal vena cava filter catheter of the present invention is characterized in that the valve fixing member can adjust the fixing position of the drip valve. In other words, the drip valve fixing device for the inferior internal vena cava filter catheter has a valve fixing member that can adjust the fixing position of the drip valve, so the length of the catheter body exposed from the puncture portion Accordingly, the position of the drip valve can be adjusted and fixed, and unnecessary deflection of the catheter body can be prevented.

  Further, in the drip valve fixing device for the inferior internal vena cava filter catheter of the present invention, the valve fixing member includes a tray part that can be fixed in an inclined state or a laid down state with the drip valve facing inward. It is characterized by that. That is, in the drip valve fixing tool of this inferior internal vena cava filter catheter, since the drip valve is fixed on the saucer part in an inclined state or lying down toward the inside, the amount of protrusion from the head is suppressed, It is possible to suppress the drip valve from hitting or being caught around.

  In addition, the drip valve fixing device for the inferior internal vena cava filter catheter of the present invention is characterized in that the valve fixing member is detachably attached to the cap portion. That is, in this drip valve fixing device for the inferior internal vena cava filter catheter, the valve fixing member is detachably attached to the cap portion, so that only the cap portion can be washed by removing the valve fixing member. Can be handled with excellent hygiene.

  Furthermore, the drip valve fixing tool for the inferior vena cava filter catheter of the present invention is characterized in that the tray part is made of polyethylene. In other words, in this infusion valve fixing device for the inferior internal vena cava filter catheter, the tray portion is made of polyethylene having sufficient strength and being flexible and has a slight mobility, so that it can be worn by a patient, for example. A feeling of strangeness can also be reduced when sleeping in a state.

  In addition, in the drip valve fixing device for an inferior internal vena cava filter catheter of the present invention, the cap portion has at least three vertical band portions extending radially downward from the top of the head, and lower ends of these vertical band portions. And an annular lateral band portion that is fixed to the portion and attached to the outer periphery of the head. That is, in this infusion valve fixing device for the inferior internal vena cava filter catheter, since the cap part is composed of at least three vertical band parts and an annular horizontal band part, there is a wide gap between the band parts. It is possible to prevent stuffiness or the like of the head by having a high air permeability as compared with the case of covering and covering the entire head.

  Furthermore, the drip valve fixing device for the inferior internal vena cava filter catheter of the present invention is characterized in that the length of the vertical band part and the horizontal band part can be adjusted. In other words, with the infusion valve fixing device of this inferior internal vena cava filter catheter, the length of the vertical band part and the horizontal band part can be adjusted according to the shape and size of each patient's head, Correspondingly, it fits on the head, and secure wearing and good wearing feeling are obtained. For example, the length of the vertical band part and the horizontal band part can be adjusted by a material (rubber material or the like) that can expand and contract with an elastic force, a hook-and-loop fastener, or the like.

  In addition, the drip valve fixing device for the inferior internal vena cava filter catheter of the present invention is characterized in that the valve fixing member includes a guide tube that can be inserted through the catheter body and extends downward. To do. That is, in this drip valve fixing device of the inferior internal vena cava filter catheter, the valve fixing member includes a guide tube that can be inserted through the catheter body and extends downward, so that the catheter in the vicinity of the drip valve The main body can be protected by the guide tube and the catheter main body can be prevented from hanging around and being caught around.

  Furthermore, in the drip valve fixing device for the subclavian vena cava filter catheter of the present invention, the guide tube is formed of a flexible material, and a slit into which the catheter body can be inserted is formed over the entire length. It is characterized by that. That is, with the drip valve fixing tool of the inferior vena cava filter catheter, a slit is formed so that the catheter body can be inserted into a flexible guide tube, so that the catheter is inserted into the guide tube with the drip valve fixed. The main body can be easily put in and out.

  In addition, the drip valve fixing tool for the inferior internal vena cava filter catheter of the present invention includes a tool cover that covers and hides the periphery of the cap portion together with at least a part of the valve fixing member. That is, in the infusion valve fixing device for the sub-cervical vena cava filter catheter, the device cover covers and hides the periphery of the cap portion together with at least a part of the valve fixing member, so that a good appearance can be obtained at the time of wearing. , Can contribute to the patient's mental stability.

The present invention has the following effects.
That is, according to the drip valve fixing device of the inferior internal vena cava filter catheter according to the present invention, a valve fixing member that fixes the drip valve, and a hat portion that is installed on the top and can be worn over the head. The drip valve is difficult to shift and can be positioned and fixed easily in a short time by simply fixing the drip valve to the valve fixing member and covering the head with a cap. A feeling of wearing can be obtained. Therefore, it is possible to prevent the indwelling filter part from being displaced by pulling the inserted catheter due to the infusion of the drip valve. In addition, it is easy to fix the infusion valve to the head, and time loss and mental load can be reduced on both the patient and the nursing side.

  Hereinafter, an embodiment of an infusion valve fixing device for an inferior internal vena cava filter catheter according to the present invention will be described with reference to FIGS. 1 to 3.

As shown in FIGS. 1 and 2, an infusion valve fixing device 1 for an inferior internal vena cava filter catheter of this embodiment is attached to a catheter body 2 having a filter portion (not shown) at the distal end and a proximal end thereof. It is an instrument for fixing the infusion valve 3 of the sub-cervical vena cava filter catheter 4 having the infusion valve 3 to the head H of the patient.
The drip valve fixing tool 1 includes a valve fixing member 5 for fixing the drip valve 3 and a cap portion 6 which is installed on the upper portion and can be mounted on the head H of the human body. ing.

The valve fixing member 5 can be inserted into the receiving body 7 extending slightly longer than the infusion valve 3 that can be fixed in an inclined state or a sideways state with the infusion valve 3 facing inward, and the catheter body 2 and can be inserted downward. And a tube support portion 9 having a substantially halved cylindrical shape extending along the guide tube 8 at the lower end portion of the tray portion 7.
The valve fixing member 5 is detachably fixed to the top of the cap 6 by hook-and-loop fasteners (not shown) attached to the back surface of the tray 7 and the top of the cap 6, respectively. The fixed position 3 can be adjusted within a certain range.

The tray part 7 and the tube support part 9 are made of polyethylene.
A plurality of drip valves 3 and a fixing band 10 for the guide tube 8 are attached to the tray portion 7 and the tube support portion 9, respectively. That is, with the infusion valve 3 installed on the tray 7, the infusion valve 3 is fixed with the fixing band 10, and the guide tube 8 is fixed with the guide tube 8 along the tube support 9. Fix with band 10 for use.

The guide tube 8 is formed of a flexible resin material, and a slit 8a is formed as a break through which the catheter body 2 can be inserted over its entire length.
The cap portion 6 includes four vertical band portions 6A extending radially and downward from the top of the head, and an annular horizontal portion that is fixed to the lower end of the vertical band portion 6A and is attached to the outer periphery of the head H. A headgear constituted by a band portion 6B.

  In addition, the saucer part 7 is attached to the top part of 6 A of vertical band parts so that attachment or detachment is possible. Further, the tube support portion 9 is detachably attached to the horizontal band portion 6B with a hook-and-loop fastener (not shown) or the like so as to pass near the back of the ear when worn.

The vertical band portion 6A and the horizontal band portion 6B are formed of a herringbone fabric as a material capable of obtaining strength and softness required at the time of wearing, and can be expanded and contracted by incorporating a rubber material. That is, when the cap 6 is attached to the head H, the vertical band 6A and the horizontal band 6B fit to the shape of the head H due to the contraction of the vertical band 6A and the horizontal band 6B, and are not easily displaced. ing.
Further, the cap 6 is shaped to be able to reach and support the lower side of the lower occipital bone I of the head H in a worn state. That is, the longitudinal band portion 6A and the lateral band portion 6B extend so that the posterior side of the lateral band portion 6B passes below the lower occipital bone I.

  Note that an adjustment mechanism such as an adjustment belt whose length can be adjusted using a hook-and-loop fastener or the like may be provided in the vertical band portion 6A and the horizontal band portion 6B. Accordingly, the lengths of the vertical band portion 6A and the horizontal band portion 6B can be adjusted according to the distance from the head side point to the head apex and the outer diameter of the head H. Further, the vertical band portion 6A and the horizontal band portion 6B that can be elastically expanded and contracted using a rubber material are preferable, but the vertical band portion 6A and the horizontal band portion 6A that can be adjusted in length only by an adjusting mechanism such as a hook-and-loop fastener without using a rubber material. The band 6B may be used.

  Further, an extendable occipital side band portion that supports the occipital side along the lower side of the lower occipital bone I in the mounted state may be provided below the lateral band portion 6B. In this case, since the occipital side band portion passes below the lower occipital bone I, the occipital region does not have to be brought into contact with the lower occipital bone I by shifting the entire cap 6 according to the shape of the patient's head. The lower side of the lower occipital bone I can be supported by the band portion.

  Furthermore, as shown in FIG. 3, the drip valve fixing tool 1 of the present embodiment includes a tool cover 11 that covers and hides the periphery of the cap portion 6 together with at least a part of the valve fixing member 5. The tool cover 11 is made of an annular cloth that is wide and has a certain degree of stretchability, and can have various colors and patterns in consideration of appearance.

  In order to fix the drip valve 3 of the inferior internal vena cava filter catheter to the head H using the drip valve fixing tool 1 of the present embodiment, first, the catheter body 2 is moved from the puncture portion IN of the neck to the internal jugular vein. The catheter body 2 is fixed with the fixing tape T at the puncture portion IN in a state where the catheter body 2 is inserted. Next, the cap 6 is put on the head H, and the position of the cap 6 is adjusted so that the tube support 9 passes near the back of the ear.

  Next, the drip valve 3 is placed on the receiving plate 7 and fixed with a fixing band 10 at a position that takes into account the movement of the head H and the like. Further, the catheter body 2 is inserted into the guide tube 8 through the slit 8a, and the guide tube 8 is fixed to the tube support portion 9 with the fixing band 10. An infusion line 12 is connected to the infusion valve 3. Further, according to the desire of the patient, the periphery of the cap portion 6 is covered with a part of the valve fixing member 5 by the tool cover 11.

  As described above, in the drip valve fixing tool 1 of the present embodiment, the valve fixing member 5 for fixing the drip valve 3 is provided on the upper portion and includes the cap portion 6 that can be mounted on the head H of the human body. By simply fixing the drip valve 3 to the valve fixing member 5 and covering the head H with the cap 6, the drip valve 3 is difficult to shift on the head H and can be positioned and fixed easily in a short time. Can obtain a good wearing feeling.

  In addition, since the cap portion 6 reaches the lower side of the lower part of the occipital bone I of the head H in a worn state and has a shape capable of supporting this portion, the lower portion of the occipital bone where the cap portion 6 is a convex portion of the occipital region By being in contact with the lower side of I, the entire cap portion 6 is hardly displaced upward. Accordingly, it is not necessary to strongly tighten the hat portion 6 to the head H, and it is possible to maintain a stable fixed state even when a slight force is applied to the hat portion 6 when the patient lies down. .

  Further, since the valve fixing member 5 capable of adjusting the fixing position of the infusion valve 3 is provided, the position of the infusion valve 3 is adjusted according to the length of the catheter body 2 exposed from the puncture portion IN. Thus, useless deflection of the catheter body 2 can be prevented. Furthermore, since the drip valve 3 is fixed on the tray 7 in a tilted or sideways state with the drip valve 3 facing inward and the amount of protrusion from the head H is suppressed, the drip valve 3 can be It is possible to suppress hitting or catching.

Further, since the valve fixing member 5 is detachably attached to the hat portion 6, only the hat portion 6 can be washed by detaching the valve fixing member 5, and handling with excellent hygiene is possible. .
In addition, since the tray portion 7 is made of polyethylene having sufficient strength and has a sufficient degree of mobility, it is possible to reduce a sense of incongruity even when the patient sleeps in a wearing state, for example.

Moreover, since the cap part 6 is comprised by the vertical band part 6A and the cyclic | annular horizontal band part 6B, there exists a wide clearance gap between each band part, and high air permeability is compared with the case where the whole head H is closed and covered. By having it, it is possible to prevent stuffiness or the like of the head H.
Furthermore, the vertical band portion 6A and the horizontal band portion 6B can be expanded and contracted in accordance with the shape and size of the head H of each patient, and fits the head H corresponding to each patient, ensuring reliable wearing and good. A feeling of wearing is obtained.

  Further, since the valve fixing member 5 includes the guide tube 8 that can be inserted through the catheter body 2 and extends downward, the catheter body 2 in the vicinity of the drip valve 3 can be protected by the guide tube 8. At the same time, the catheter body 2 can be prevented from hanging around and being caught around. Furthermore, since the slit 8a into which the catheter main body 2 can be inserted into the flexible guide tube 8 is formed, the catheter main body 2 can be easily inserted into and removed from the guide tube 8 with the infusion valve 3 fixed.

  Moreover, since the tool cover 11 covers and hides the periphery of the cap portion 6 together with at least a part of the valve fixing member 5, it is possible to obtain a good appearance at the time of wearing and contribute to the patient's mental stability. In particular, it is possible to obtain an effect of reducing the appearance specificity at the time of wearing such as when a woman uses it.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the above-described embodiment, the hat portion 6 has four vertical band portions 6A, but it is sufficient that at least three vertical band portions 6A are provided.
Further, in order to fill a gap between the drip valve 3 and the tray part 7, a cushion material such as a sponge may be attached on the tray part 7.

1 is a side view showing a state in which an infusion valve fixing tool is mounted in an embodiment of an infusion valve fixing tool of an inferior internal vena cava filter catheter according to the present invention. In this embodiment, it is a front view which shows the state which mounted | wore the drip valve fixing tool. In this embodiment, it is a side view which shows the state which covered the cover for auxiliary tools in the state which mounted | wore with the drip valve fixing tool.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Drip valve fixing tool, 2 ... Catheter main body, 3 ... Drip valve, 4 ... Inferior internal vena cava filter catheter, 5 ... Valve fixing member, 6 ... Hat part, 6A ... Vertical band part, 6B ... Horizontal band Part, 7 ... saucer part, 8 ... guide tube, 8a ... slit, 11 ... tool cover, H ... head, I ... lower part of occipital bone

Claims (12)

A valve fixing member for fixing the infusion valve of the subinternal jugular vena cava filter catheter having a catheter body having a filter portion at the distal end and an infusion valve attached to the proximal end thereof;
A drip valve fixing device for an inferior internal jugular vena cava filter catheter, characterized in that the valve fixing member is provided on the upper part and has a cap portion that can be worn over the head of a human body.   2. The drip infusion of the sub-cervical vena cava filter catheter according to claim 1, wherein the cap portion is configured to reach and support a lower part of the lower occipital bone of the head in a mounted state. Valve fixing tool.   3. The drip of the sub-cervical vena cava filter catheter according to claim 2, wherein the cap portion has a occipital side band portion that passes under a lower occipital bone of the head in the mounted state. Valve fixing tool.   The infusion valve fixing device for an inferior internal vena cava filter catheter according to any one of claims 1 to 3, wherein the valve fixing member is capable of adjusting a fixing position of the infusion valve.   5. The internal neck according to claim 1, wherein the valve fixing member includes a tray portion that can be fixed in an inclined state or a sideways state with the infusion valve facing inward. Infusion valve fixing tool for inferior vena cava filter catheter.   6. The drip valve fixing device for an inferior internal jugular vena cava filter catheter according to claim 5, wherein the tray part is made of polyethylene.   The infusion valve fixing device for an inferior internal vena cava filter catheter according to any one of claims 1 to 6, wherein the valve fixing member is detachably attached to the cap portion. . The hat portion extends at least three longitudinal band portions radially downward from the top of the head;
The inner band according to any one of claims 1 to 7, wherein the inner band is formed by an annular horizontal band part fixed to a lower end part of the vertical band part and mounted on an outer periphery of the head part. Infusion valve fixing tool for inferior jugular vena cava filter catheter.   9. The infusion valve fixing device for an inferior internal vena cava filter catheter according to claim 8, wherein the length of the vertical band portion and the horizontal band portion is adjustable.   10. The sub-cervical vena cava filter according to claim 1, wherein the valve fixing member includes a guide tube that can be inserted through the catheter body and extends downward. A catheter drip valve fixing tool.   The infusion of the sub-cervical vena cava filter catheter according to claim 10, wherein the guide tube is formed of a flexible material, and a slit into which the catheter body can be inserted is formed over the entire length. Valve fixing tool.   The sub-internal jugular vena cava filter catheter according to any one of claims 1 to 11, further comprising a tool cover that covers and hides the periphery of the cap portion together with at least a part of the valve fixing member. Drip valve fixing tool.

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