Buckle type heparin cap

Abstract

The utility model provides a buckle type heparin cap which comprises a rubber cap and a locking lantern ring, the clamping end of the rubber cap comprises three clamping pieces which are arranged at intervals in a surrounding mode, a pipe clamp is defined by the three clamping pieces, and when the buckle type heparin cap is used, a connecting pipe can be inserted into the pipe clamp and meshed through the pipe clamp; meanwhile, a protrusion arranged on the outer wall of the connecting pipe slides into a groove formed in the inner wall of the pipe clamp, and the protrusion and the groove are clamped in a matched mode, so that the rubber cap and the connecting pipe are detachably clamped; the locking lantern ring is arranged outside the rubber cap in a sleeving mode so that the firmness of mutual clamping connection of the protrusion and the groove can be improved. A rubber plug is arranged at the connector end of the rubber cap, the interior of the rubber cap is coated with a heparin coating, and the risk of thrombosis and infection is prevented through the heparin coating; therefore, the bayonet type heparin cap which is convenient to pick, disassemble and assemble is constructed, so that the disassembly efficiency and success rate between the heparin cap and the remaining needle are improved, and the clinical working efficiency of medical staff is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a snap-on heparin cap. Background Art

[0002] In recent years, intravenous catheters have become widely used for emergency treatment, chemotherapy infusion, and intravenous nutrition due to their advantages in avoiding repeated punctures. In clinical nursing practice, overtightening of the heparin cap between the catheter, PICU, or CVC often results in a problem. In most cases, this is resolved with a vascular clamp. When a patient returns to the ward after surgery, the nurse in charge may be unable to unscrew the heparin cap while replacing the infusion set and catheter connector. Given the patient and family's high anxiety, returning to the nurses' station to retrieve the clamp would not only affect the surgical handover, but also reduce patient and family satisfaction and increase the nurses' workload. Furthermore, there are cases where nurses perform the tightening operation improperly, failing to pay attention to the screw thread direction, tightening the cap further, or even causing the heparin cap to become stuck between the end of the intravenous catheter, necessitating catheter removal. Therefore, the inability of traditional heparin caps to unscrew between the catheter, PICU, or CVC can cause significant distress to patients and nurses, reducing patient satisfaction and nurses' clinical efficiency.

[0003] Therefore, how to provide a snap-on heparin cap that is easy to remove and disassemble to improve the disassembly efficiency and success rate between the heparin cap and the indwelling needle is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a snap-on heparin cap to at least solve one of the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides a snap-on heparin cap, which is connected to the connecting tube of the intravenous catheter. The snap-on heparin cap includes: a rubber cap, the clamping end of the rubber cap includes three clamping pieces arranged at intervals around it, and the three clamping pieces are combined to form a tube clamp, and the size of the tube clamp is adapted to the outer diameter of the connecting tube; a groove is provided around the inner wall of the tube clamp, and a protrusion adapted to the groove is provided around the outer wall of the connecting tube, so that when the connecting tube is inserted into the tube clamp, the groove and the protrusion can be detachably clamped; a rubber plug is provided at the interface end of the rubber cap; and a locking ring is sleeved on the outside of the rubber cap and is slidably connected to the rubber cap.

[0006] Optionally, a plug-in tube is provided inside the rubber cap, one end of the plug-in tube is located inside the rubber cap and is integrally formed with the rubber cap, and the other end of the plug-in tube is located outside the rubber cap; the size of the connecting tube is adapted to the inner diameter of the plug-in tube so that the other end of the plug-in tube can be detachably connected to the connecting tube.

[0007] Optionally, one end of the plug-in tube and the tube clamp are combined to form an annular clamping area, and the groove is provided in the annular clamping area so that the protrusion is inserted into the annular clamping area and detachably clamped to the groove.

[0008] Optionally, the outer side surface of the locking collar is provided with a plurality of evenly distributed anti-slip bumps.

[0009] Optionally, a sliding groove is provided on the inner wall of the locking collar, and a limiting block is provided in the middle of the rubber cap. The limiting block is slidably connected in the sliding groove, so that when the limiting block slides to the top of the sliding groove, the end of the locking collar close to the clamping end covers the pipe clamp.

[0010] Optionally, a first magnetic sheet is provided on the top of the sliding groove, and a second magnetic sheet is provided on the side of the limit block, and the first magnetic sheet is magnetically connected to the second magnetic sheet.

[0011] Optionally, an anti-slip pad is provided at the top of the sliding groove, so that when the limit block slides to the top of the sliding groove, it is self-locked with the anti-slip pad through friction.

[0012] Optionally, the protrusion and the groove are both in arc-shaped structures that fit each other.

[0013] Optionally, the rubber cap and the locking collar are respectively provided with a first identification color and a second identification color.

[0014] Optionally, the rubber cap, the locking ring and the insertion tube are all made of medical-grade polycarbonate material, and the rubber plug is made of isoprene rubber pad.

[0015] Beneficial effects:

[0016] The utility model provides a snap-on heparin cap, which is connected to the connecting tube of the intravenous indwelling needle and is used to provide a sterile interface for the intravenous indwelling needle to conveniently connect medical devices such as infusion tubes and blood collection needles, wherein the snap-on heparin cap includes a rubber cap and a locking collar, the clamping end of the rubber cap includes three clamping pieces arranged at intervals around, the three clamping pieces together form a tube clamp, the size of the tube clamp is adapted to the outer diameter of the connecting tube, and when in use, the connecting tube can be inserted into the tube clamp and the connecting tube can be bitten by the tube clamp, and at the same time, the protrusion provided on the outer wall of the connecting tube is slid into the groove provided on the inner wall of the tube clamp, and the two are engaged with each other, so that the rubber cap and the connecting tube can be detachably clamped to each other; as shown in the figure, the locking collar is sleeved on the rubber cap On the outside, when the protrusion is located in the groove and fits in, the tube clamp is covered by a sliding locking ring to prevent external force from causing the tube clamp to deform and open, causing the protrusion to fall out of the groove, thereby improving the firmness of the fit between the protrusion and the groove; a rubber plug is provided at the interface end of the rubber cap, and the inside of the rubber cap is coated with a heparin coating. The heparin coating effectively prevents blood from coagulating in the pipeline and keeps the pipeline unobstructed, thereby preventing the risk of thrombosis and infection. At the same time, the rubber plug achieves the effect of sealing the catheter, which can effectively reduce repeated skin punctures and prolong the use time of the intravenous catheter; in this way, a bayonet-type heparin cap that is easy to remove, disassemble and install is constructed to improve the disassembly efficiency and success rate between the heparin cap and the catheter, thereby improving the clinical work efficiency of medical staff.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a diagram showing the overall structure of the snap-on heparin cap provided in an embodiment of the present application;

[0020] Figure 2 This is a diagram showing the overall structure of the snap-on heparin cap provided in an embodiment of the present application;

[0021] Figure 3 A cross-sectional view of the snap-on heparin cap provided in an embodiment of the present application;

[0022] Figure 4 A schematic structural diagram of the locking collar of the snap-on heparin cap provided in an embodiment of the present application;

[0023] Figure 5 A partial cross-sectional view of a snap-on heparin cap provided in an embodiment of the present application;

[0024] Reference numerals:

[0025] 1—rubber cap;

[0026] 11—clamping piece;

[0027] 12—groove;

[0028] 13—plug-in tube;

[0029] 14—annular clamping area;

[0030] 15—limit block;

[0031] 2—locking collar;

[0032] 21—anti-slip bumps;

[0033] 22—sliding groove;

[0034] 3—Connecting pipe;

[0035] 31—convex; DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] At the same time, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of this specification are for illustrative purposes only and are not intended to limit the present invention.

[0038] See also Figure 1-3The present embodiment provides a snap-on heparin cap, which is connected to the connecting tube 3 of the intravenous catheter. The snap-on heparin cap comprises: a rubber cap 1, wherein the clamping end of the rubber cap 1 comprises three clamping pieces 11 arranged at intervals around the clamping end, and the three clamping pieces 11 are combined to form a tube clamp, the size of which is adapted to the outer diameter of the connecting tube 3; a groove 12 is provided around the inner wall of the tube clamp, and a protrusion 31 adapted to the groove 12 is provided around the outer wall of the connecting tube 3, so that when the connecting tube 3 is inserted into the tube clamp, the groove 12 and the protrusion 31 can be detachably clamped; a rubber plug is provided at the interface end of the rubber cap 1, and the interior of the rubber cap 1 is coated with a heparin coating; a locking collar 2, which is sleeved on the outside of the rubber cap 1 and is slidably connected to the rubber cap 1.

[0039] Specifically, the utility model provides a snap-on heparin cap, which is connected to the connecting tube 3 of the intravenous indwelling needle and is used to provide a sterile interface for the intravenous indwelling needle to conveniently connect medical devices such as infusion tubes and blood collection needles, wherein the snap-on heparin cap includes a rubber cap 1 and a locking ring 2, the clamping end of the rubber cap 1 includes three clamping pieces 11 arranged around and spaced apart, and the three clamping pieces 11 are combined to form a tube clamp, the size of the tube clamp is adapted to the outer diameter of the connecting tube 3, and when in use, the connecting tube 3 can be inserted into the tube clamp and the connecting tube 3 can be bitten by the tube clamp, and at the same time, the protrusion 31 provided on the outer wall of the connecting tube 3 is slid into the groove 12 provided on the inner wall of the tube clamp, and the two are engaged with each other, so that the rubber cap 1 and the connecting tube 3 can be detachably engaged with each other; Figure 1 As shown, the locking ring 2 is sleeved on the outside of the rubber cap 1. When the protrusion 31 is located in the groove 12 and is engaged, the tube clamp is covered by sliding the locking ring 2 to prevent the tube clamp from being deformed and opened by external force so that the protrusion 31 may fall out of the groove 12, thereby improving the firmness of the engagement between the protrusion 31 and the groove 12; a rubber plug is provided at the interface end of the rubber cap 1, and the interior of the rubber cap 1 is coated with a heparin coating. The heparin coating effectively prevents blood from coagulating in the pipeline and keeps the pipeline unobstructed, thereby preventing the risk of thrombosis and infection. At the same time, the rubber plug achieves the effect of sealing the indwelling needle, which can effectively reduce repeated skin punctures and prolong the use time of the intravenous indwelling needle; in this way, a bayonet-type heparin cap that is easy to remove, disassemble and install is constructed to improve the disassembly efficiency and success rate between the heparin cap and the indwelling needle, thereby improving the clinical work efficiency of medical staff.

[0040] In some possible embodiments, a plug-in tube 13 is provided inside the rubber cap 1, one end of the plug-in tube 13 is located inside the rubber cap 1 and is integrally formed with the rubber cap 1, and the other end of the plug-in tube 13 is located outside the rubber cap 1; the size of the connecting tube 3 is adapted to the inner diameter of the plug-in tube 13, so that the other end of the plug-in tube 13 can be detachably connected to the connecting tube 3.

[0041] Specifically, if Figure 4As shown, by the provision of the plug-in tube 13, when the rubber cap 1 is plugged into the connecting tube 3, the plug-in tube 13 is first inserted into the connecting tube 3. As a feasible way, the other end of the plug-in tube 13 is located outside the rubber cap 1 and has a certain protruding length, so that when the plug-in tube 13 is connected to the connecting tube 3, it is inserted deep into the connecting tube 3 to prevent the liquid in the tube or the external gas from easily overflowing from the pipe mouth or the connection between the plug-in tube 13 and the connecting tube 3. In this way, under the premise of having provided structures such as the pipe clamp, the groove 12, the protrusion 31 and the locking ring 2, the connection tightness of the plug-in tube 13 and the connecting tube 3 is further improved to prevent gas or liquid penetration.

[0042] In some possible embodiments, one end of the plug-in tube 13 and the tube clamp are combined to form an annular clamping area 14 , and the groove 12 is disposed in the annular clamping area 14 so that the protrusion 31 is inserted into the annular clamping area 14 and detachably clamped to the groove 12 .

[0043] Specifically, if Figure 3 As shown, one end of the plug-in tube 13 and the tube clamp form an annular clamping area 14. When the connecting tube 3 and the plug-in tube 13 are detachably plugged in, the connecting tube 3 is located in the annular clamping area 14, so that the detachable clamping of the groove 12 and the protrusion 31 provides a movable space.

[0044] In some possible implementations, the outer side surface of the locking collar 2 is provided with a plurality of evenly distributed anti-slip protrusions 21 .

[0045] Specifically, by providing a plurality of anti-slip protrusions 21, the friction force of the medical staff pinching the locking ring 2 to slide is increased, so that the medical staff's fingers are not likely to slip when installing and removing the heparin cap, thereby improving the convenience of operation.

[0046] In some possible embodiments, a sliding groove 22 is provided on the inner wall of the locking collar 2, and a limit block 15 is provided in the middle of the rubber cap 1. The limit block 15 is slidably connected in the sliding groove 22, so that when the limit block 15 slides to the top of the sliding groove 22, the end of the locking collar 2 close to the clamping end covers the pipe clamp.

[0047] Specifically, if Figure 5 As shown, by setting the sliding groove 22 and the limit block 15, the rubber cap 1 and the locking collar 2 are slidably connected and locked to each other at the same time; as a feasible way, when the limit block 15 slides to the top of the sliding groove 22, the locking collar 2 can just completely cover the pipe clamp, thereby stabilizing the shape of the pipe clamp and preventing the protrusion 31 from falling out of the groove 12; wherein, the top of the sliding groove 22 is the end close to the clamping end.

[0048] In some possible implementations, a first magnetic sheet is provided on the top of the sliding slot 22 , a second magnetic sheet is provided on the side of the limiting block 15 , and the first magnetic sheet is magnetically connected to the second magnetic sheet.

[0049] Specifically, when the limit block 15 slides to the top of the sliding groove 22, the first magnetic plate and the second magnetic plate can be magnetically connected, so that the locking ring 2 is fixed in the current position, continuously ensuring the shape of the pipe clamp to be stable and preventing the protrusion 31 from falling out of the groove 12.

[0050] In some possible implementations, an anti-slip pad is provided at the top of the sliding groove 22 so that when the limiting block 15 slides to the top of the sliding groove 22 , it is self-locked with the anti-slip pad through friction.

[0051] Specifically, through the provision of the anti-slip gasket, when the limit block 15 slides to the top of the sliding groove 22, friction is generated between the limit block 15 and the anti-slip gasket, so that the limit block 15 and the sliding groove 22 are frictionally self-locked, thereby continuously ensuring the shape stability of the tube clamp and preventing the protrusion 31 from falling out of the groove 12; at the same time, the provision of the anti-slip gasket can also reduce the production cost of the device and improve the convenience of clinical use.

[0052] In some possible implementations, the protrusion 31 and the groove 12 are both arc-shaped structures that fit each other.

[0053] Specifically, if Figure 2-3 As shown, by setting the protrusion 31 and the groove 12 as an arc structure, since the arc structure is relatively smooth, there will be no jamming when sliding against each other, which makes it convenient for medical personnel to directly slide and plug and clamp the rubber cap 1 and the connecting tube 3, thereby improving the efficiency and success rate of medical personnel in plugging and unplugging the rubber cap 1 and the connecting tube 3.

[0054] In some possible implementations, the rubber cap 1 and the locking collar 2 are respectively provided with a first identification color and a second identification color.

[0055] Specifically, by setting the first identification color and the second identification color, medical staff can more clearly distinguish the rubber cap 1 and the locking ring 2, thereby facilitating medical staff to quickly insert and remove the rubber cap 1 or slide the locking ring 2, thereby improving usage efficiency.

[0056] In some possible implementations, the rubber cap 1 , the locking collar 2 , and the insertion tube 13 are all made of medical-grade polycarbonate material, and the rubber plug is made of isoprene rubber pad.

[0057] Specifically, the use of medical-grade polycarbonate materials and isoprene pads improves patient safety.

[0058] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, intended to illustrate the technical solutions of the present invention, rather than to limit them. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can, within the technical scope disclosed by the present invention, modify or easily conceive of variations to the technical solutions described in the above embodiments, or substitute equivalent features for some of the technical features thereof. Such modifications, variations, or substitutions do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments of the present invention. They should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

[0059] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A snap-on heparin cap, which is connected to a connecting tube (3) of a venous indwelling needle, characterized in that: The snap-on heparin cap comprises: A rubber cap (1), wherein the clamping end of the rubber cap (1) comprises three clamping pieces (11) arranged at intervals around the clamping piece, wherein the three clamping pieces (11) are combined to form a pipe clamp, and the size of the pipe clamp is adapted to the outer diameter of the connecting pipe (3); a groove (12) is provided around the inner wall of the pipe clamp, and a protrusion (31) adapted to the groove (12) is provided around the outer wall of the connecting pipe (3), so that when the connecting pipe (3) is inserted into the pipe clamp, the groove (12) and the protrusion (31) can be detachably clamped; a rubber plug is provided at the interface end of the rubber cap (1), and the interior of the rubber cap (1) is coated with a heparin coating; A locking collar (2) is sleeved on the outside of the rubber cap (1) and is slidably connected to the rubber cap (1).

2. The snap-on heparin cap according to claim 1, characterized in that: A plug-in tube (13) is provided inside the rubber cap (1), one end of the plug-in tube (13) is located inside the rubber cap (1) and is integrally formed with the rubber cap (1), and the other end of the plug-in tube (13) is located outside the rubber cap (1); the size of the connecting tube (3) is adapted to the inner diameter of the plug-in tube (13), so that the other end of the plug-in tube (13) can be detachably plugged into the connecting tube (3).

3. The snap-on heparin cap according to claim 2, characterized in that: One end of the plug-in tube (13) and the tube clamp are combined to form an annular clamping area (14), and the groove (12) is arranged in the annular clamping area (14), so that the protrusion (31) is inserted into the annular clamping area (14) and detachably clamped with the groove (12).

4. The snap-on heparin cap according to claim 3, characterized in that: The outer side surface of the locking collar (2) is provided with a plurality of evenly distributed anti-slip convex points (21).

5. The snap-on heparin cap according to claim 4, characterized in that: The inner wall of the locking collar (2) is provided with a sliding groove (22), and a limiting block (15) is provided in the middle of the rubber cap (1). The limiting block (15) is located in the sliding groove (22) and is slidably connected, so that when the limiting block (15) slides to the top of the sliding groove (22), the end of the locking collar (2) close to the clamping end covers the pipe clamp.

6. The snap-on heparin cap according to claim 5, characterized in that: A first magnetic sheet is provided on the top of the sliding groove (22), and a second magnetic sheet is provided on the side of the limiting block (15), and the first magnetic sheet is magnetically connected to the second magnetic sheet.

7. The snap-on heparin cap according to claim 5, characterized in that: An anti-skid pad is provided at the top of the sliding groove (22), so that when the limiting block (15) slides to the top of the sliding groove (22), it is self-locked with the anti-skid pad through friction.

8. The snap-on heparin cap according to any one of claims 6 or 7, characterized in that: The protrusion (31) and the groove (12) are both in mutually adapted arc-shaped structures.

9. The snap-on heparin cap according to claim 8, characterized in that: The rubber cap (1) and the locking collar (2) are respectively provided with a first identification color and a second identification color.

10. The snap-on heparin cap according to claim 9, characterized in that: The rubber cap (1), the locking collar (2) and the insertion tube (13) are all made of medical-grade polycarbonate material, and the rubber plug is made of isoprene rubber pad.

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