Hemodialysis catheter fixing device

Abstract

The utility model discloses a hemodialysis catheter fixing device, relates to the field of medical instruments, and solves the technical problems that an existing hemodialysis catheter fixing device does not consider that the fixing length of a puncture needle fixing device and a catheter is short, the catheter is prone to shaking and bending, and the risk of needle falling exists. The fixing device comprises a soft cushion, a venous catheter containing groove and an arterial catheter containing groove which are the same in structure are formed in the soft cushion, an artery puncture fixing part and a vein puncture fixing part which are the same in structure are arranged in the length extension direction of the artery catheter containing groove and the venous catheter containing groove respectively, and the vein puncture fixing part comprises a fixing base and V-shaped fixing dressing detachably connected to the two ends. A needle groove is formed in the fixing base, and a blocking piece matched with an aircraft wing of the puncture needle is arranged in the length extending direction of the needle groove. The puncture needle is fixed through the needle groove and the blocking piece, the catheter is fixed through the artery catheter containing groove and the vein catheter containing groove, the fixed length of the catheter is increased, the catheter is prevented from shaking and bending, the risk of needle disengagement is reduced, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a hemodialysis catheter fixing device. Background Art

[0002] Hemodialysis, abbreviated as hemodialysis, is also commonly known as artificial kidney or dialysis. It is a type of blood purification technology. Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. Hemodialysis requires the construction of vascular access. The vascular access for hemodialysis mainly includes temporary vascular access and permanent vascular access. Temporary vascular access includes direct arteriovenous catheterization and percutaneous central venous catheterization; permanent vascular access includes arteriovenous fistula and transplanted arteriovenous fistula. Arteriovenous fistula is considered to be an ideal permanent vascular access with sufficient blood flow, long service life, and less chance of infection. It is called the "golden lifeline" of patients.

[0003] Two catheters are needed for hemodialysis, one for extracting and purifying blood, and the other for returning the purified blood to the patient. The hemodialysis catheter is relatively long, and is usually fixed to the patient's arm or other location with adhesive tape. The fixation effect is poor, and the catheter is prone to shaking. Some patients are allergic to adhesive tape, which causes itching at the adhesive tape fixation site, affecting the patient's comfort. Existing catheter fixing devices such as patent number CN216934411U include a second connecting block, a second fixing block, a card plate, and a card block. The catheter is placed in the first fixing groove, and the catheter is fixed in the second fixing groove of the second fixing block by the second connecting block, the second fixing block, the card plate, and the card block. The length of the catheter fixed in this way is limited, the fixation effect is poor, and there is no fixing device for the puncture needle, which has the risk of needle removal. Utility Model Content

[0004] The utility model discloses a hemodialysis catheter fixing device, which is intended to solve the technical problems that the existing hemodialysis catheter fixing device does not consider fixing the puncture needle, the fixed hemodialysis catheter has a limited length, adhesive tape is used to fix the catheter, the fixing effect is poor, the needle may fall off, and the catheter shakes and bends, affecting the hemodialysis effect.

[0005] In order to solve the above-mentioned technical problems, the technical solutions adopted by the present utility model are as follows:

[0006] A hemodialysis catheter fixing device comprises a soft cushion, wherein the soft cushion is provided with a venous catheter accommodating groove and an arterial catheter accommodating groove, the venous catheter accommodating groove and the arterial catheter accommodating groove have the same structure, and the venous catheter accommodating groove and the arterial catheter accommodating groove are respectively provided with a venous puncture fixing part and an arterial puncture fixing part in their length extension directions, the venous puncture fixing part and the arterial puncture fixing part have the same structure, the venous puncture fixing part comprises a fixing seat connected to the soft cushion, the fixing seat is provided with a needle groove for accommodating a puncture needle, a stopper cooperating with the airplane wing of the puncture needle is provided in the length extension direction of the needle groove, a V-shaped fixing dressing is connected to the stopper or the fixing seat, and one end of the V-shaped fixing dressing is detachably connected to the other end.

[0007] After adopting this technical solution, when using the device, the puncture needle can be confined in the needle groove through the needle groove on the fixing seat, the left and right position of the puncture needle can be limited, the front and back directions of the puncture needle can be limited by the cushion and the baffle, and the puncture needle can be fixed to the patient's arm or elbow by the V-shaped fixing dressing, so that the puncture needle is not easy to fall out. The length of the venous catheter receiving groove and the arterial catheter receiving groove can be changed with the width of the cushion, which increases the fixed length of the catheter and reduces the risk of the puncture needle falling off due to the shaking and bending of the catheter, resulting in poor dialysis effect.

[0008] Wherein, a U-shaped airbag is arranged in the arterial catheter accommodating groove, the U-shaped airbag is connected with an elastic clamping piece, a plurality of suction cups are arranged on the inner surface of the elastic clamping piece, and the U-shaped airbag is connected with an inflation and deflation mechanism.

[0009] After adopting this technical solution, the catheter is placed in the elastic clip, and the U-shaped airbag is inflated, so that the U-shaped airbag tightens the elastic clip, thereby clamping the catheter. The catheter then squeezes the suction cup at the bottom of the elastic clip, squeezing out the air in the middle of the suction cup, so that the suction cup and the catheter are in close contact, so that the entire elastic clip adapts to the size of the catheter and is tightly adsorbed.

[0010] Wherein, the arterial catheter accommodating groove is arranged on the outer surface of the cushion, the elastic clamping piece is a circular groove, and the width of the opening of the circular groove is smaller than the diameter of the circular groove.

[0011] After adopting this technical solution, the catheter can be easily placed into the interior of the clamping part through the opening of the circular groove.

[0012] Wherein, the blocking member comprises two protrusions arranged on the fixing seat, and the two protrusions are respectively arranged on both sides of the needle groove.

[0013] After adopting this technical solution, the extension direction of the length of one end of the needle groove can be limited by the protrusions on both sides of the needle groove.

[0014] Wherein, the V-shaped fixing dressing is a sterile dressing, and a medical double-sided adhesive tape is arranged near the stopper of the V-shaped fixing dressing.

[0015] After adopting this technical solution, sterile dressings can reduce the risk of infection at the puncture site. One side of the medical double-sided tape is adhered to the puncture needle, and the other side is in contact with the patient's skin, which can further limit the space of the puncture needle up and down, thereby increasing the fixation effect of the puncture needle.

[0016] Wherein, one end of the cushion is detachably connected to the other end.

[0017] After adopting this technical solution, the soft cushion can be connected to the patient's hand shape and skin, and has a wide range of adaptability.

[0018] One end of the soft pad is provided with a connecting part, and the other end is provided with a second fleece-surface Velcro, the outer surface of the connecting part is provided with a second hook-surface Velcro that cooperates with the second fleece-surface Velcro, and the side of the soft pad close to the second fleece-surface Velcro is provided with a through groove for passing the connecting part.

[0019] After adopting this technical solution, the connecting part can be connected to the second fleece-surface Velcro through the through groove, the connecting area is large, and the fixation effect on the patient's elbow is good.

[0020] Wherein, the second hook surface Velcro is connected with a pressure sensor.

[0021] The cushion is provided with a groove for accommodating the connecting part, and the size of the connecting part matches the size of the groove.

[0022] After adopting this technical solution, the overall thickness of the cushion can be kept consistent after being connected, thereby increasing the comfort of the patient.

[0023] Wherein, the suction cup is a silicone suction cup.

[0024] After adopting this technical solution, the suction cup has strong adsorption force, simple material, controllable cost, and is easy to promote.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0026] (1) The puncture needle is fixed by using a needle groove, a stopper and a V-shaped fixing dressing, which increases the fixing area of ​​the arm or elbow, limits the spatial position of the puncture needle, and reduces the risk of needle dislocation.

[0027] (2) After the U-shaped airbag is inflated, it squeezes the elastic clip. By utilizing the deformation of the elastic clip and the adsorption effect of the suction cup, the entire device can adapt to the shape of the catheter and fix the catheter more firmly. The arterial and venous catheter fixing grooves increase the length of the catheter fixation, making the catheter less likely to shake or bend, thereby improving the dialysis effect.

[0028] (3) The cushion is made of flexible material, one end of which is detachably connected to the other end. The cushion is also provided with grooves and through slots so that the entire device can adapt to the elbow or arm size of patients of different body shapes, thereby increasing the comfort of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The utility model will be described by way of examples and with reference to the accompanying drawings, in which:

[0030] Figure 1 This is a structural diagram of a hemodialysis catheter fixing device of the utility model;

[0031] Figure 2 This is an enlarged view of A of a hemodialysis catheter fixing device of the utility model;

[0032] Reference numerals

[0033] 1-soft cushion, 101-second hook surface Velcro, 102-venous catheter receiving slot, 103-arterial catheter receiving slot, 104-U-shaped airbag, 105-suction cup, 106-through slot, 107-pressure sensor, 108-second fur surface Velcro, 2-venous puncture fixing part, 201-needle groove, 202-first hook surface Velcro, 203-medical double-sided adhesive tape, 204 boss, 205-first fur surface Velcro, 3-arterial puncture fixing part. DETAILED DESCRIPTION

[0034] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and indicated in the accompanying drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0035] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the invention and utility model products are usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] Combine the following Figure 1-Figure 2 Describe the utility model in detail.

[0037] A hemodialysis catheter fixing device comprises a cushion 1, wherein the cushion 1 is provided with a venous catheter accommodating groove 102 and an arterial catheter accommodating groove 103, wherein the venous catheter accommodating groove 102 and the arterial catheter accommodating groove 103 have the same structure, wherein the venous catheter accommodating groove 102 and the arterial catheter accommodating groove 103 are respectively provided with a venous puncture fixing part 2 and an arterial puncture fixing part 3 in their length extension directions, wherein the venous puncture fixing part 2 and the arterial puncture fixing part 3 have the same structure, wherein the venous puncture fixing part 2 comprises a fixing seat connected to the cushion 1, wherein the fixing seat is provided with a needle groove 201 for accommodating a puncture needle, wherein a stopper 204 cooperating with an airplane wing of the puncture needle is provided in the length extension direction of the needle groove 201, wherein a V-shaped fixing dressing is connected to the stopper 204 or the fixing seat, wherein one end of the V-shaped fixing dressing is detachably connected to the other end.

[0038] In this embodiment, the size of the needle slot 201 matches the size of the puncture needle.

[0039] In this embodiment, a first hook-surface Velcro 202 is provided on the upper surface of one end of the V-shaped fixing dressing, and a first fur-surface Velcro 205 is provided on the lower surface of one end. Through the adhesion of the first hook-surface Velcro 202 and the first fur-surface Velcro 205, the entire intravenous puncture fixing part can be fixed on the patient's arm or elbow.

[0040] In this embodiment, a U-shaped airbag 104 is disposed in the arterial catheter receiving groove 103, and the U-shaped airbag 104 is connected to an elastic clip, and a plurality of suction cups 105 are disposed on the inner surface of the elastic clip. The U-shaped airbag 104 is connected to an inflation and deflation mechanism.

[0041] In this embodiment, the inflation and deflation mechanism has the same principle as the push-to-inflate neck pillow and push-to-inflate valve of patent number CN211795664U, and includes an inflatable pillow body, the inflatable pillow body having an inflation chamber, the inflation chamber being connected to the push-to-inflate valve, and the inflatable pillow is inflated and deflated by pressing the push-to-inflate valve.

[0042] In this embodiment, the arterial catheter accommodating groove 103 is arranged on the outer surface of the cushion 1, and the elastic clamping member is a circular groove, and the width of the opening of the circular groove is smaller than the diameter of the circular groove.

[0043] In this embodiment, the blocking member 204 includes two protrusions disposed on a fixing seat, and the two protrusions are respectively disposed at two ends of the needle groove 201 .

[0044] In this embodiment, the height of the protrusion matches the height of the airplane wing on the side of the puncture needle.

[0045] In this embodiment, the V-shaped fixing dressing is a sterile dressing, and a medical double-sided adhesive tape 203 is provided near the stopper 204 of the V-shaped fixing dressing.

[0046] In this embodiment, the V-shaped fixing dressing in contact with the puncture needle is a sterile dressing, and the remaining parts are sterile dressings.

[0047] In this embodiment, one end of the soft cushion 1 is detachably connected to the other end. Specifically, a connecting portion is provided at one end of the soft cushion 1, and a second fleece-surface Velcro 108 is provided at the other end. The outer surface of the connecting portion is provided with a second hook-surface Velcro 101 that cooperates with the second fleece-surface Velcro 108. A through groove 106 for passing the connecting portion is provided on one side of the soft cushion 1 close to the second fleece-surface Velcro 108.

[0048] In this embodiment, the cushion 1 is provided with a groove for accommodating the connecting part, and the size of the connecting part matches the size of the groove.

[0049] In this embodiment, the suction cup 105 is a silicone suction cup.

[0050] The specific use method of the utility model is as follows:

[0051] Reference Figure 1-Figure 2When the device is used, first pass the puncture needle through the needle groove 201 on the fixing seat, so that the puncture needle is fixed between the stopper 204 and the soft cushion. At this time, the puncture needle is attached to the upper surface of the medical double-sided adhesive tape 203, and the lower surface is attached to the patient's skin. Then, the V-shaped fixing dressing is crossed upward to fix the puncture needle, and then crossed downward. The first hook surface Velcro 202 and the first fur surface Velcro 205 are used to fix the entire venous puncture fixing part 2 and the arterial puncture fixing part 2 to the patient's arm or elbow. Then, the catheter is inserted into the elastic clamping part, and the connecting part of the soft cushion 1 is passed through the through groove 106 to press the elastic clamping part, so as to adjust the catheter space up and down. The position is fixed, the soft cushion 1 where the second fur-surface Velcro 108 is located presses the connecting part of the software 1 that has passed through the through groove to wrap the patient's elbow or arm, and then is fixed by the second fur-surface Velcro 108 and the second hook-surface Velcro 101 to fit the size of the patient's elbow or arm. Finally, the U-shaped airbag 104 is inflated by pressing the inflation and deflation mechanism arranged on the surface of the soft cushion 1, so that the U-shaped airbag 104 squeezes the elastic clip to adapt to the shape of the catheter and squeezes out the air in the gap between the suction cup 105 and the catheter, so that the suction cup 105 and the catheter are firmly sucked together, so that the entire device firmly fixes the catheter and the puncture needle.

[0052] Example 2

[0053] This embodiment is basically the same as embodiment 1, except that: in this embodiment, a pressure sensor 107 is provided inside the soft cushion 1 at the corresponding position of the second hook-side Velcro 101 and the second fleece-side Velcro 108, and the pressure sensor 107 is electrically connected to a controller, and the controller is connected to an inflation and deflation mechanism, and the inflation and deflation mechanism is connected to a U-shaped airbag 104. When the second hook-side Velcro 101 and the second fleece-side Velcro 108 are adhered to each other, the pressure sensor 107 senses the pressure and transmits a signal to the controller, and the controller controls the inflation and deflation mechanism to inflate and deflate the U-shaped airbag 104. The operation is simple and quick to use.

[0054] The above description of the disclosed embodiments enables one skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hemodialysis catheter fixing device, characterized in that: The invention comprises a soft cushion (1), wherein the soft cushion (1) is provided with a venous catheter accommodating groove (102) and an arterial catheter accommodating groove (103), wherein the venous catheter accommodating groove (102) and the arterial catheter accommodating groove (103) have the same structure, wherein the venous catheter accommodating groove (102) and the arterial catheter accommodating groove (103) are respectively provided with a venous puncture fixing part (2) and an arterial puncture fixing part (3) in the length extension direction thereof, wherein the venous puncture fixing part (2) and the arterial puncture fixing part (3) have the same structure, wherein the venous puncture fixing part (2) comprises a fixing seat connected to the soft cushion (1), wherein the fixing seat is provided with a needle groove (201) for accommodating a puncture needle, wherein a stopper (204) cooperating with the airplane wing of the puncture needle is provided in the length extension direction of the needle groove (201), wherein a V-shaped fixing dressing is connected to the stopper (204) or the fixing seat, wherein one end of the V-shaped fixing dressing is detachably connected to the other end thereof.

2. A hemodialysis catheter fixing device according to claim 1, characterized in that: A U-shaped airbag (104) is arranged in the arterial catheter accommodating groove (103), the U-shaped airbag (104) is connected to an elastic clamping piece, a plurality of suction cups (105) are arranged on the inner surface of the elastic clamping piece, and the U-shaped airbag (104) is connected to an inflation and deflation mechanism.

3. A hemodialysis catheter fixing device according to claim 2, characterized in that: The arterial catheter accommodating groove (103) is arranged on the outer surface of the soft cushion (1); the elastic clamping piece is a circular groove; the width of the opening of the circular groove is smaller than the diameter of the circular groove.

4. A hemodialysis catheter fixing device according to claim 1, characterized in that: The blocking member (204) comprises two protrusions arranged on a fixing seat, and the two protrusions are respectively arranged on two sides of the needle groove (201).

5. A hemodialysis catheter fixing device according to claim 1, characterized in that: The V-shaped fixing dressing is a sterile dressing, and a medical double-sided adhesive patch (203) is provided near the stopper (204) of the V-shaped fixing dressing.

6. A hemodialysis catheter fixing device according to any one of claims 1 to 5, characterized in that: One end of the soft cushion (1) is detachably connected to the other end.

7. A hemodialysis catheter fixing device according to claim 6, characterized in that: The soft pad (1) is provided with a connecting portion at one end and a second fleece-surface Velcro (108) at the other end; a second hook-surface Velcro (101) that cooperates with the second fleece-surface Velcro (108) is provided on the outer surface of the connecting portion; and a through groove (106) for passing through the connecting portion is provided on a side of the soft pad (1) close to the second fleece-surface Velcro (108).

8. A hemodialysis catheter fixing device according to any one of claims 1 to 5, characterized in that: The soft pad (1) is provided with a groove for accommodating a connecting part, and the size of the connecting part matches the size of the groove.

9. A hemodialysis catheter fixing device according to claim 2, characterized in that: The suction cup (105) is a silicone suction cup.

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