A pollution protection sleeve for an arterial indwelling pipeline three-way plug

Abstract

The present application relates to a kind of anti-pollution protective sleeve of arterial indwelling pipeline tee bend plug, belong to medical instrument technical field.The protective sleeve is the box type membrane structure with one side openable, including frame and the elastic membrane covered on frame;Frame includes a bottom frame, two side frames connected with the both ends of bottom frame and two top frames openable to both sides;Two side frames are provided with annular hollow structure for placing tee bend plug front and rear passage;Two top frames are provided with movable connection mechanism for opening or closing protective sleeve;Top frame middle part is provided with membrane for wrapping tee bend plug blood drawing end connector cap, hoop piece is arranged on membrane, hoop piece is used for clamping tee bend plug connector cap, hoop piece is provided with bonding structure for bonding corresponding membrane on the membrane around hoop piece. Through the present application, both tee bend plug pollution on arterial indwelling pipeline and operation process can be simplified, and work burden is reduced.

Description

Technical Field

[0001] This invention relates to a contamination-proof protective sleeve for a three-way stopcock for indwelling arterial catheters, belonging to the field of medical device technology. Background Technology

[0002] Almost all critically ill patients require indwelling arterial catheters for continuous monitoring of arterial blood pressure and repeated blood draws for arterial blood gas analysis. The three-way stopcock on the indwelling arterial catheter serves as both a connection and a blood draw channel. During blood draws, the disposable sterile infusion cap (hereinafter referred to as the "cap") and connection point of the three-way stopcock's "drawing end" must be disinfected. Using sterilized hands, the cap is manually unscrewed. The doctor places the unscrewed cap in a sterile location, connects a sterile syringe, and withdraws the saline solution from the catheter. Arterial blood is then drawn using a blood gas analyzer. After the blood draw, the valve is opened to flush the catheter, and the three-way stopcock valve is rotated to flush out any remaining blood from the "drawing end." The cap is then disinfected and screwed back onto the "drawing end." This process requires constant attention to disinfection and aseptic technique to prevent the introduction of pathogens into the catheter and subsequent blood flow, which could lead to iatrogenic bloodstream infections. However, this procedure is cumbersome, and numerous errors can lead to tubing contamination, such as: failing to disinfect hands before operating on different patients; operating without disinfecting the connector cap; leaving the unscrewed connector cap haphazardly instead of placing it in a sterile area; and allowing the open three-way stopcock to come into contact with surrounding contaminated areas during the procedure without sealing it with the connector cap. Critically ill patients have weakened immune systems, and these incorrect procedures can lead to iatrogenic infections, seriously threatening their lives and increasing the difficulty of treatment. The cumbersome, strictly disinfected procedures and the so-called "sterile area" increase the use of consumables and the workload of operators. Furthermore, because the three-way stopcock is made of hard plastic, improper placement can cause abrasion to the patient's skin; haphazard placement increases the risk of contamination and forces clinicians to search for the stopcock along the tubing when drawing blood gases, increasing workload and unnecessary time. Currently, in clinical practice, nurses often use gauze pads to cover the three-way stopcock and secure it to the skin of an adjacent limb with tape, with the gauze separating the stopcock from the skin. This increases unnecessary consumption of consumables and the workload of nurses. Therefore, this technical field urgently needs to solve the problem of how to prevent contamination of the three-way stopcock in arterial catheters while simplifying the operation procedure. Summary of the Invention

[0003] The purpose of this invention is to solve the technical problem of how to both prevent contamination of the arterial indwelling catheter three-way valve and simplify the operation process.

[0004] To address the aforementioned problems, the present invention provides a contamination-resistant protective sleeve for an arterial indwelling catheter three-way stopcock. The sleeve is a box-type membrane structure that can be opened and closed on one side, comprising a frame and an elastic membrane covering the frame. The frame includes a bottom frame, two corresponding side frames connected to both ends of the bottom frame, and two top frames that can be opened to both sides and are movably connected to the side frames. The two side frames have annular hollow structures for placing the front and rear passages of the three-way stopcock. Between the two top frames is a movable connecting mechanism for opening or closing the protective sleeve to create a closed space inside. The top frame has a membrane in the center for wrapping the blood-drawing end connector cap of the three-way stopcock. The membrane has an arc-shaped clamp for engaging the three-way stopcock connector cap, and the membrane around the clamp has an adhesive structure for bonding the corresponding membranes.

[0005] Preferably, the side frame includes two columns connected to the bottom frame; an annular hollow structure for placing the front and rear passages of the three-way valve is provided between the two columns; the top frame is movably connected to the annular hollow structure.

[0006] Preferably, the top frame includes two side pillars located on the same side as the two side frames. One end of the two side pillars is connected to the annular hollow structure, and a connecting frame is provided between the other ends of the two side pillars. The middle part of the connecting frame is provided with a diaphragm for wrapping the three-way valve cap.

[0007] Preferably, the annular hollow structure is an elastic ring with a break; the side post is hinged to the ring.

[0008] Preferably, the connecting frame is a discontinuous linear structure; the diaphragm is located at the break in the connecting frame.

[0009] Preferably, the bottom frame is square; the two columns of the side frame are parallel to each other.

[0010] Preferably, magnets are provided on the side columns of the top frame; the movable connection mechanism is a magnetic connection mechanism.

[0011] Preferably, the clamp plate is provided with a toothed structure that engages with the outer surface of the three-way valve cap.

[0012] Preferably, the adhesive structure on the diaphragm is Velcro; the elastic membrane covering the frame is a transparent membrane.

[0013] Preferably, a channel is provided between the two corresponding diaphragms in the middle of the two top frames for the extension and retraction of the protective sleeve of the three-way valve blood-drawing end.

[0014] Preferably, the outer side of the bottom frame is provided with straps for securing the protective sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention can both prevent contamination of the three-way stopcock on the arterial indwelling catheter and simplify the operation process; it can reduce the burden on doctors, avoid contamination, and simplify the operation process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the anti-pollution protective sleeve of the three-way stopcock for arterial indwelling tubing of the present invention when it is opened.

[0018] Figure 2 This is a schematic diagram of the structure of the anti-pollution protective sleeve of the three-way stopcock for arterial indwelling tubing of the present invention when closed.

[0019] Figure 3 This is a schematic diagram of the bottom structure of the anti-pollution protective sleeve of the three-way stopcock for arterial indwelling tubing according to the present invention.

[0020] Figure 4 This is a schematic diagram of the three-way stopcock for arterial indwelling tubing.

[0021] Reference numerals: 1. Hoop plate; 2. Diaphragm; 3. Side column; 4. Ring; 5. Curved membrane; 6. Bottom frame; 7. Side frame; 8. Top frame; 9. Velcro; 10. Column; 11. Connecting beam; 12. Connecting frame; 13. Channel; 14. Strap; 15. Blood collection end; 16. Knob; 17. Connector cap. Detailed Implementation

[0022] To make the present invention more apparent and understandable, preferred embodiments are described in detail below:

[0023] like Figure 1-4As shown, the present invention provides a contamination-proof protective sleeve for an arterial indwelling catheter three-way stopcock. The protective sleeve is a box-type membrane structure that can be opened and closed on one side, including a frame and an elastic membrane covering the frame. The frame includes a bottom frame 6, two corresponding side frames 7 connected to both ends of the bottom frame 6, and two top frames 8 that can be opened to both sides and movably connected to the side frames 7. The two side frames 7 are provided with annular hollow structures for placing the front and rear passages of the three-way stopcock. A movable connecting mechanism is provided between the two top frames 8 for opening or closing the protective sleeve to make the interior of the protective sleeve a closed space. The top frame 8 is provided with a membrane 2 in the middle for wrapping the connector cap 17 of the blood collection end 15 of the three-way stopcock. The membrane 2 is provided with an arc-shaped clamping piece 1 for locking the connector cap 17 of the three-way stopcock. The membrane 2 around the clamping piece 1 is provided with an adhesive structure for bonding the corresponding membrane 2. The side frame 7 includes two columns 10 connected to the bottom frame 6; an annular hollow structure for placing the front and rear passages of the three-way valve is provided between the two columns 10; the top frame 8 is movably connected to the annular hollow structure. The top frame 8 includes two side columns 3 respectively located on the same side as the two side frames 7. One end of the two side columns 3 is connected to the annular hollow structure, and a connecting frame 12 is provided between the other ends of the two side columns 3. A diaphragm 2 for wrapping the three-way valve connector cap 17 is provided in the middle of the connecting frame 12. The annular hollow structure is an elastic ring 4 with a break in the ring 4 for placing the front and rear passages of the three-way valve; the side columns 3 are hinged to the ring 4. The connecting frame 12 is a discontinuous linear structure; the break in the connecting frame 12 is the diaphragm 2. The bottom frame 6 is square; the two columns 10 of the side frame 7 are parallel to each other. Magnets are provided on the side columns 3 of the top frame 8; the movable connection mechanism is a magnetic connection mechanism. The clamp plate 1 has a toothed structure that engages with the outer surface of the three-way stopcock connector cap 17. The adhesive structure on the diaphragm 2 is Velcro 9; the elastic membrane covering the frame is a transparent membrane. Between the two corresponding diaphragms 2 in the middle of the two top frames 8, there is a channel 13 for the extension and retraction of the protective sleeve of the three-way stopcock blood-drawing end 15. The two connecting frames 12 are respectively provided with front and rear elastic membranes between the two sides of the bottom frame 6, and the front and rear elastic membranes are provided with loose arc-shaped membranes 5 corresponding to the three-way stopcock knob 16.

[0024] Optionally, the side frame 7 includes two columns 10 connected to the bottom frame 6, a connecting beam 11 between the tops of the two columns 10, and a ring 4 in the middle of the connecting beam 11; the connecting beam 11 is parallel to the plane on which the bottom frame 6 is located.

[0025] Example

[0026] Currently, there is an urgent clinical need for a sterile protective sleeve that can effectively protect the three-way stopcock from being sterile and clean, simplify the operation process, reduce the pressure and abrasion of the three-way stopcock on the patient's skin, and facilitate the fixation of the three-way stopcock.

[0027] The protective sleeve has five sides, similar to a leather bag: a bottom, two sides, and a front and back. The whole is a box-shaped membrane structure that can be opened and closed at the front and back. The three-way valve is inserted into the protective sleeve by opening the box-shaped membrane structure at the front and back. The front and back of the protective sleeve correspond to the knob 16 of the three-way valve, and the openable part of the protective sleeve corresponds to the blood-drawing end 15 of the three-way valve.

[0028] The protective cover has a structure including a frame and an elastic transparent film covering the frame; the frame includes a square bottom frame 6, two parallel side frames 7 connected to the two sides of the bottom frame 6, and two top frames 8 that can be opened to the front and back and are movably connected to the side frames 7; a magnet is provided between the two top frames 8, which can be used to open or close the two top frames 8.

[0029] (Optionally, a pluggable snap-fit ​​structure is provided between the two top frames 8, which can be used to open or close the two top frames 8.)

[0030] The side frame 7 includes two parallel columns 10 connected to the bottom frame 6, a connecting beam 11 between the tops of the two columns 10, and a ring 4 in the middle of the connecting beam 11; the top frame 8 includes two side columns 3 respectively located on the same side as the two side frames 7, and a connecting frame 12 between the ends of the two side columns 3, the connecting frame 12 being perpendicular to the side frames 7; the side columns 3 are hinged to the ring 4, and magnets are provided on the side columns 3; the two top frames 8 are closed by the magnets on their respective side columns 3. A diaphragm 2 for wrapping the three-way valve cap 17 is provided in the middle of the connecting frame 12.

[0031] The diaphragm 2 has an arc-shaped clamping piece 1 made of rigid material for engaging the three-way stopcock connector cap 17. Around the clamping piece 1, the diaphragm 2 has Velcro 9 for bonding two corresponding diaphragms 2. The connecting frame 12 has a discontinuous linear structure; the diaphragm 2 is located at the break in the connecting frame 12; a channel 13 is provided between the two corresponding diaphragms 2 at the break in the connecting frame 12 for the extension and retraction of the protective sleeve of the three-way stopcock blood-drawing end 15.

[0032] This invention provides a three-way sterile protective sleeve resembling a miniature handbag. The main body is made of a transparent soft plastic film. The bottom side, close to the skin, uses a material similar to "Mepiform" (i.e., self-adhesive soft silicone foam dressing). The inner edge of the sleeve features a tear-off fastener structure (Velcro 9 structure) for easy closure. Alcohol can be sprayed onto the inside of the sleeve daily for disinfection.

[0033] After connecting the invasive pressure monitoring pathway, this invention can be opened, and the three-way connector can be wrapped around it. The passage of the three-way connector extends through the two holes (rings 4) on the side of this invention. The "blood-drawing end 15" on the three-way connector is normally enclosed by this invention when not in operation. The clamping plate 1 has a toothed structure, and its curvature and shape match the threads on the outside of the "connector cap 17," making it a rigid structure. When the operator needs to unscrew the connector cap 17, the two clamping plates 1 can be used to clamp the outer circumference of the "connector cap 17" and unscrew it. The unscrewed "connector cap 17" can be clamped at the structure of the two clamping plates 1 and then moved to one side, allowing the opening of the "blood-drawing end 15" to pass through the joint channel 13 of the two diaphragms 2 and be exposed to the outside. The syringe is then inserted into the opening to begin blood drawing.

[0034] The "connector cap 17" will not be left lying around after being unscrewed. The diaphragm 2 has a stretchable, loose structure, preventing insufficient distance and entanglement when rotating the "connector cap 17". The curved diaphragm 5 is a transparent, loose structure protruding on both the front and back, similar to a soft sleeve. The knob 16 on the T-connector is located here. When it is necessary to change the T-connector path through the knob 16, the knob 16 can be rotated by hand through the curved diaphragm 5. The loose and elastic structure of the curved diaphragm 5 prevents it from being pulled and becoming stuck during rotation. After drawing blood gas, remove the syringe and allow the opening of the "blood drawing end 15" to pass through the joint channel 13 between the two diaphragms 2 and retract into the protective sleeve; then screw the "connector cap 17" back on. Through the above operations, the opening of the "blood drawing end 15" is either inside the protective sleeve and covered by the "connector cap 17", or it extends directly out of the protective sleeve and connects to the syringe, avoiding contact with other items and preventing contamination. The "connector cap 17" is always inside the protective sleeve, preventing contact with other items and avoiding contamination.

[0035] Optionally, the outer side of the bottom surface of the present invention may have two buckles through which the strap 14 can be inserted for easy fixation to the limbs.

[0036] The present invention has a rigid structure that makes it easy to unscrew the "connector cap 17" (because the "connector cap 17" is very small, although the outer side of the "connector cap 17" has threads to increase friction, it is difficult to unscrew after wearing gloves or spraying disinfectant. Clinically, when it cannot be unscrewed, needle forceps are used to unscrew it, which wastes time and increases the risk of contamination).

[0037] The entire material of this invention is a soft, elastic, transparent membrane. The transparent membrane makes it easy to observe whether there is any blood residue in the passage and whether the blood in the three-way stopcock has been completely drained.

[0038] This invention is divided into five sides, similar to a leather bag: the bottom side, two side sides, and the front and back sides.

[0039] 1. The bottom surface is flat, and the outer material in contact with the skin can be a material similar to "Mepiform," which is breathable and increases friction to reduce skin abrasion. A strap 14 can be attached to the outer side of the bottom for easy fixation to adjacent limbs, or adhesive tape can be used for fixation. This prevents unauthorized movement after blood draws or other procedures and avoids contact with surrounding contaminated areas.

[0040] 2. Both sides have openings (i.e., the hollow part of ring 4) at the same positions as the arterial access. The area above the openings is separate, while the area below the openings is connected. This facilitates the insertion of the tee along with the access.

[0041] 3. On both the front and back sides, at the same positions as the T-joint knob 16, there are protruding structures to facilitate rotation of the T-joint through these parts. The central part of both the front and back sides is a raised arc-shaped membrane 5. The raised arc-shaped membrane 5 matches the shape of the T-joint knob 16. The raised part has sufficient elasticity and certain folds in its depth to prevent it from being pulled due to insufficient length when rotating the T-joint knob 16.

[0042] 4. In the part that overlaps with the thread of the "connector cap 17", the inner side of the diaphragm 2 of the present invention is provided with a toothed hard arc-shaped clamping piece 1. When the clamping pieces 1 on the two diaphragms 2 are pinched, the two clamping pieces 1 close together and are locked at the thread of the "connector cap 17" to increase friction and facilitate the rotation to unscrew or screw on the "connector cap 17".

[0043] 5. The clamping plate 1 of the diaphragm 2 is provided with Velcro 9 around its perimeter; the two diaphragms 2 wrap around the blood-drawing end 15 of the three-way stopcock, and the two diaphragms 2 are glued together by the Velcro 9, thus encasing the blood-drawing end 15 "connector cap 17" inside the protective sleeve; when it is necessary to unscrew or screw on the "connector cap 17", the clamping plate 1 on the two diaphragms 2 is closed and locked onto the thread of the "connector cap 17"; after the clamping plate 1 is closed and the "connector cap 17" is unscrewed, because the two diaphragms 2 around the "connector cap 17" are still glued together by the Velcro 9, the closed clamping plate 1 still holds the "connector cap 17" tightly, thus keeping the "connector cap 17" inside the protective sleeve and fixing it inside the protective sleeve. This avoids contamination of the "connector cap 17". The unscrewed "connector cap 17" is inside the protective sleeve, which ensures the sterility of the "connector cap 17" and also ensures that the "connector cap 17" is not thrown away carelessly.

[0044] 6. The inner material of the protective case is antibacterial, and the perimeter has a tear-off fastener structure (Velcro structure) to facilitate the closure and wrapping of the invention.

[0045] 7. The entire invention is made of a transparent, soft material.

[0046] How this invention is used:

[0047] After connecting the three-way connector, insert the three-way connector into the invention. The straight passages at both ends of the three-way connector are inserted into the ring 4. Press the edge of the diaphragm 2 to close the invention and enclose the three-way connector. If the knob 16 needs to be rotated, rotate it through the curved diaphragm 5. If blood needs to be drawn, unscrew the "connector cap 17" through the clamp 1, pull open the "connector cap 17" to allow the opening of the "blood drawing end 15" to pass through the joint channel 13 of the two diaphragms 2 and be exposed to the outside. Connect the syringe to begin blood drawing.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the present invention, and these improvements and additions should also be considered within the scope of protection of the present invention. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of the present invention are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A contamination-proof protective sleeve for a three-way stopcock for an indwelling arterial catheter, characterized in that, The protective sleeve is a box-type membrane structure that can be opened and closed on one side, including a frame and an elastic membrane covering the frame. The frame includes a bottom frame, two corresponding side frames connected to both ends of the bottom frame, and two top frames that can be opened to both sides and are movably connected to the side frames. The two side frames are provided with annular hollow structures for placing the front and rear passages of the three-way valve. There is a movable connecting mechanism between the two top frames for opening or closing the protective sleeve to make the interior of the protective sleeve a closed space. The top frame has a membrane in the middle for wrapping the blood-drawing end connector cap of the three-way valve. The membrane has an arc-shaped clamp for locking the three-way valve connector cap. The membrane around the clamp has an adhesive structure for bonding the corresponding membranes.

2. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 1, characterized in that, The side frame includes two columns connected to the bottom frame; between the two columns is an annular hollow structure for placing the front and rear passages of the three-way valve; the top frame is movably connected to the annular hollow structure.

3. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 1, characterized in that, The top frame includes two side columns located on the same side as the two side frames. One end of the two side columns is connected to the annular hollow structure, and a connecting frame is provided between the other ends of the two side columns. A diaphragm for wrapping the three-way valve connector cap is provided in the middle of the connecting frame.

4. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 3, characterized in that, The annular hollow structure is an elastic ring with a break point; the side post is hinged to the ring.

5. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 3, characterized in that, The connecting frame is a discontinuous linear structure; the diaphragm is located where the connecting frame is interrupted.

6. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 2, characterized in that, The bottom frame is square; the two columns of the side frame are parallel to each other.

7. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 3, characterized in that, Magnets are provided on the side columns of the top frame; the movable connection mechanism is a magnetic connection mechanism.

8. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 1, characterized in that, The clamp plate is provided with a toothed structure that engages with the outer surface of the three-way valve cap.

9. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 1, characterized in that, The adhesive structure on the diaphragm is Velcro; the elastic membrane covering the frame is a transparent membrane.

10. The anti-contamination protective sleeve for a three-way stopcock for an indwelling arterial catheter according to claim 1, characterized in that, The two top frames have a channel between the two corresponding diaphragms in the middle for the extension and retraction of the protective sleeve of the three-way valve blood collection end.

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