A protective sleeve for preventing blood splashing when preventing a blood vessel sheath from being torn in a PICC catheterization

Abstract

The utility model belongs to the field of medical devices, disclose a PICC is put in the protection sleeve of blood splashing when preventing tearing blood vessel sheath in the catheterization, be used for wrapping blood vessel sheath, including membrane cover, membrane cover is made of elastic material, membrane cover is completely unfolded and presents the rectangular cavity shape of inside hollow, the strip cut is seted up in the bottom of membrane cover, the strip cut is connected with the inside of membrane cover through, and the strip cut is along the two side walls of strip cut axis direction and penetrates membrane cover, the length of strip cut is greater than the length of blood vessel sheath, a pair of through -hole for blood vessel sheath end two handle to wear out is seted up on membrane cover, two through -holes are located respectively on the two side walls of membrane cover and strip cut axis direction parallel, can complete tearing operation to blood vessel sheath in membrane cover, effectively protect the process of tearing blood vessel sheath, avoid blood splashing, solved the problem that tearing blood vessel sheath in prior art is easy to cause blood splashing.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically relating to a protective sleeve to prevent blood splashing when tearing the vascular sheath during PICC placement. Background Technology

[0002] PICC (Peripherally Inserted Central Catheter) placement is a common medical procedure used to provide long-term venous access for patients. The procedure involves: percutaneous puncture of the vein followed by guidewire insertion; skin dilation and advancement of a dilator and a tearable vascular sheath along the guidewire; successful insertion of the sheath, withdrawal of the dilator and guidewire, and advancement of the catheter into the vein to the appropriate length through the sheath; finally, the procedure is completed by tearing and withdrawing the sheath. However, during catheter insertion into the vein through the sheath, blood often spills out, causing the sheath to become blood-filled. When tearing and withdrawing the sheath, the operator must forcefully pry open the ends of the sheath by holding both handles, during which blood can easily splatter out, contaminating the work surface and potentially splashing onto the operator, increasing the risk of disease transmission. Therefore, existing techniques suffer from the problem of blood splattering when tearing the sheath. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a protective sleeve to prevent blood splashing when the vascular sheath is torn during PICC placement, thus solving the problem that blood splashing is easily caused when the vascular sheath is torn in the prior art.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A protective sleeve for preventing blood splashing during PICC catheter placement when the vascular sheath is torn, including a membrane sleeve;

[0006] The membrane sleeve is made of elastic material and has a hollow rectangular cavity shape when fully unfolded.

[0007] The bottom of the membrane sheath has a strip-shaped slit, which is connected to the inside of the membrane sheath. The strip-shaped slit runs through both sides of the membrane sheath along the axis of the strip-shaped slit, and the length of the strip-shaped slit is greater than the length of the vascular sheath.

[0008] The membrane sheath has a pair of through holes for the two handles at the end of the vascular sheath to pass through. The two through holes are located on the two side walls of the membrane sheath that are parallel to the axis of the strip slit.

[0009] When the membrane sheath is fully deployed, the distance between the two openings is greater than or equal to twice the length of the vascular sheath;

[0010] A pair of symmetrically placed strips are fixed at the bottom of the membrane sleeve. The strips are located on both sides of the strip slit, and the strips are placed perpendicular to the strip slit. The strips extend to the side wall of the membrane sleeve where the through hole is opened at the corresponding end, away from the strip slit.

[0011] Absorbent strips are fixed on both sides of the strip-shaped slit on the inner bottom surface of the membrane sleeve. The absorbent strips are made of water-absorbing material.

[0012] Absorbent materials include one or more of the following: medical sponges, non-woven fabrics, or superabsorbent polymers.

[0013] Elastic materials include silicone or polyurethane;

[0014] The end of the strip away from the strip cut has anti-slip texture.

[0015] The beneficial effects of this utility model are:

[0016] 1. Move the membrane sheath directly above the vascular sheath, and move it downwards so that the strip-shaped slit covers the vascular sheath and catheter. After the membrane sheath completely covers the vascular sheath, release the pull on both sides of the strip-shaped slit. Under the action of elasticity, the width of the strip-shaped slit will shrink and return to its initial state. At this time, the vascular sheath is wrapped inside the membrane sheath. The catheters that pass through both ends of the vascular sheath extend out of the membrane sheath along the strip-shaped slit on the side wall of the membrane sheath. Then, squeeze the membrane sheath to bring the two through holes closer together. Then, pass the two handles at the end of the vascular sheath out of the two through holes respectively. Finally, pull the two handles of the vascular sheath to separate them. This will allow the vascular sheath to be torn open inside the membrane sheath. This process of tearing open the vascular sheath is effectively protected to avoid blood splashing.

[0017] 2. The strip design facilitates the pulling of the two sides of the strip-cut bottom of the membrane sleeve away from each other;

[0018] 3. The absorption strip design prevents blood from leaking out of the membrane sleeve through the strip-shaped slits. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the protective sleeve and conduit structure during use of this utility model;

[0021] Figure 2 This is a schematic diagram of the membrane sleeve structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the absorbent strip portion of the present invention. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] This combination Figures 1 to 3 This describes an embodiment of a protective sleeve to prevent blood splattering during PICC catheter insertion when the vascular sheath is torn. Specifically, the protective sleeve is constructed as an integral structure, comprising a membrane sleeve 300, a strip slit 301, and a through hole 302. In use, the membrane sleeve 300 is first pulled close to both sides of the strip slit 301. Because the membrane sleeve 300 is made of an elastic thin film material, pulling it increases the width of the strip slit 301. The membrane sleeve 300 is then moved directly above the vascular sheath 100. The membrane sleeve 300 is then moved downwards so that the strip slit 301 covers the vascular sheath 100 and the catheter 200, until the membrane sleeve 300 completely covers the blood. After the sheath 100 is removed, the tension on both sides of the strip-shaped slit 301 is released. Under the elastic force, the width of the strip-shaped slit 301 shrinks and returns to its initial state. At this time, the vascular sheath 100 is wrapped inside the membrane sleeve 300. The catheter 200, which passes through both ends of the vascular sheath 100, extends out of the membrane sleeve 300 along the strip-shaped slit 301 penetration part on the side wall of the membrane sleeve 300. Then, the membrane sleeve 300 is squeezed to bring the two through holes 302 closer together. Then, the two handles at the end of the vascular sheath 100 are passed out through the two through holes 302 respectively. Finally, the two handles of the vascular sheath 100 are pulled apart, and the vascular sheath 100 can be torn open inside the membrane sleeve 300. This effectively protects the process of tearing open the vascular sheath 100 and avoids blood splashing.

[0025] Please refer to Figures 1 to 3 A protective sleeve for preventing blood splashing during PICC catheter placement when the vascular sheath is torn, used to wrap the vascular sheath 100, including a membrane sleeve 300;

[0026] The membrane sleeve 300 is made of elastic material and has a hollow rectangular cavity shape when fully unfolded.

[0027] The bottom of the membrane sheath 300 has a strip-shaped slit 301, which is connected to the inside of the membrane sheath 300. The strip-shaped slit 301 penetrates both side walls of the membrane sheath 300 along the axial direction of the strip-shaped slit 301, and the length of the strip-shaped slit 301 is greater than the length of the vascular sheath 100.

[0028] The membrane sleeve 300 has a pair of through holes 302 for the two handles at the end of the vascular sheath 100 to pass through. The two through holes 302 are located on the two side walls of the membrane sleeve 300 that are parallel to the axis of the strip slit 301.

[0029] In use, first pull the membrane sleeve 300 close to both sides of the strip-shaped slit 301. Since the membrane sleeve 300 is made of elastic film material, pulling it can increase the width of the strip-shaped slit 301. Move the membrane sleeve 300 directly above the vascular sheath 100, and move the membrane sleeve 300 downwards so that the strip-shaped slit 301 covers the vascular sheath 100 and the catheter 200. After the membrane sleeve 300 completely covers the vascular sheath 100, release the pulling on both sides of the strip-shaped slit 301. Under the action of elasticity, the width of the strip-shaped slit 301 shrinks and returns to its initial state. At this point, the vascular sheath 100 is encased within the membrane sleeve 300. The catheter 200, which passes through both ends of the vascular sheath 100, extends out of the membrane sleeve 300 along the strip-shaped slit 301 on the side wall of the membrane sleeve 300. Then, the membrane sleeve 300 is squeezed to bring the two through holes 302 closer together. Next, the two handles at the end of the vascular sheath 100 are passed through the two through holes 302 respectively. Finally, the two handles of the vascular sheath 100 are pulled apart, thus completing the tearing operation of the vascular sheath 100 within the membrane sleeve 300. This effectively protects the process of tearing the vascular sheath 100 and prevents blood from splashing.

[0030] After the vascular sheath 100 is torn open, the two halves of the vascular sheath 100 remain inside the membrane sleeve 300. Hold and pinch the two halves of the vascular sheath 100 and the membrane sleeve 300 tightly, and lift them upwards to separate the membrane sleeve 300 and the vascular sheath 100 from the catheter 200. The separated membrane sleeve 300 and vascular sheath 100 can be discarded directly.

[0031] Preferably, the length of the vascular sheath 100 is typically 5 cm to 15 cm, and the diameter of the catheter 200 is typically 1.0 mm to 2.0 mm;

[0032] Preferably, the membrane wall thickness of the membrane sleeve 300 is 0.2mm to 0.5mm to ensure that it has sufficient elasticity without affecting operation due to excessive thickness.

[0033] Preferably, the through hole 302 can be circular or triangular in shape, as long as the handle of the vascular sheath 100 can pass through it.

[0034] When the membrane sleeve 300 is fully unfolded, the distance between the two through holes 302 is greater than or equal to twice the length of the vascular sheath 100; when it is torn open, the through hole 302 on either side moves synchronously with the corresponding end handle, and when the membrane sleeve 300 is fully unfolded, the distance between the two through holes 302 is greater than or equal to twice the length of the vascular sheath 100, which provides space for the vascular sheath 100 to be completely torn open inside the membrane sleeve 300.

[0035] To facilitate the pulling of both sides of the strip slit 301 and to widen the strip slit 301 when needed, a pair of symmetrically placed strips 400 are fixed to the bottom of the membrane sleeve 300. The strips 400 are located on both sides of the strip slit 301 and are perpendicular to the strip slit 301. The strips 400 extend to the side of the membrane sleeve 300 where the through hole 302 is opened at the corresponding end, away from the strip slit 301. By pulling the two strips 400, the bottom of the membrane sleeve 300 can be pulled, thereby widening the strip slit 301.

[0036] Preferably, the strip 400 can be made of medical bandage.

[0037] Absorbent strips 500 are fixed on both sides of the strip-shaped slit 301 on the inner bottom surface of the membrane sheath 300. The absorbent strips 500 are made of water-absorbing material. When the vascular sheath 100 is torn open, blood splashes onto the inner wall of the membrane sheath 300. The blood will slide down the inner wall of the membrane sheath 300 to the strip-shaped slit 301. The absorbent strips 500 can prevent blood from dripping out of the membrane sheath 300.

[0038] Absorbent materials include one or more of the following: medical sponges, non-woven fabrics, or superabsorbent polymers.

[0039] Elastic materials include silicone or polyurethane.

[0040] The end of the strip 400 away from the strip cut 301 is provided with anti-slip texture; when the strip 400 is pulled, the anti-slip texture can increase the friction between the fingers and the strip 400.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A protective sleeve for preventing blood splashing during PICC catheter placement when the vascular sheath is torn, used to wrap the vascular sheath (100), including a membrane sleeve (300), characterized in that: The membrane sleeve (300) is made of elastic material and has a hollow rectangular cavity when fully unfolded. The bottom of the membrane sheath (300) is provided with a strip-shaped slit (301), which is connected to the inside of the membrane sheath (300). The strip-shaped slit (301) penetrates the two side walls of the membrane sheath (300) along the axis of the strip-shaped slit (301), and the length of the strip-shaped slit (301) is greater than the length of the vascular sheath (100). The membrane sheath (300) has a pair of through holes (302) for the two handles at the end of the vascular sheath (100) to pass through. The two through holes (302) are located on the two side walls of the membrane sheath (300) and the strip slit (301) in the direction of the axis.

2. The protective sleeve for preventing blood splashing during PICC catheter placement to prevent tearing of the vascular sheath as described in claim 1, characterized in that, When the membrane sheath (300) is fully extended, the distance between the two through holes (302) is greater than or equal to twice the length of the vascular sheath (100).

3. The protective sleeve for preventing blood splashing during PICC catheter placement to prevent tearing of the vascular sheath as described in claim 2, characterized in that, A pair of symmetrically placed strips (400) are fixed at the bottom of the membrane sleeve (300). The strips (400) are located on both sides of the strip slit (301). The strips (400) are placed perpendicular to the strip slit (301). The strips (400) extend to the side of the membrane sleeve (300) where the corresponding end of the through hole (302) is opened, away from the strip slit (301).

4. The protective sleeve for preventing blood splashing during PICC catheter placement to prevent tearing of the vascular sheath as described in claim 3, characterized in that, Absorbent strips (500) are fixed on both sides of the inner bottom surface of the membrane sleeve (300) along the strip cut (301), and the absorbent strips (500) are made of water-absorbing material.

5. The protective sleeve for preventing blood splashing during PICC catheter placement to prevent tearing of the vascular sheath as described in claim 4, characterized in that, The strip (400) has anti-slip texture at the end away from the strip cut (301).

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