Venous tube joint protection device for central venous indwelling catheter

Abstract

The utility model provides a venous tube joint protection device for a central venous indwelling catheter, and relates to the field of venous tube joint protection. The device comprises a central venous indwelling catheter which comprises a central venous indwelling catheter body and a venous catheter connector, one end of the venous catheter connector is communicated with the central venous indwelling catheter body, and the other end of the venous catheter connector is provided with a connecting end; the protection device comprises a first-stage protection unit and a second-stage protection unit, the first-stage protection unit is provided with a pipe body mounting groove and a connecting device, the central venous indwelling catheter body is connected into the pipe body mounting groove in a clamped mode, the second-stage protection unit comprises a protection sleeve and an opening and closing device, and the opening and closing device is arranged on the periphery of the venous catheter connector. And after the opening and closing device closes or communicates the connecting end, the protective sleeve is connected to the outer part of the venous catheter joint in a sleeving manner. According to the device, on one hand, the central venous indwelling catheter is prevented from being in direct contact with the skin and clothes of a patient, on the other hand, the venous catheter joint is protected, and the effect of isolating bacteria is achieved.

Description

Technical Field

[0001] The utility model relates to the field of venous tube joint protection, in particular to a venous tube joint protection device used for central venous catheterization. Background Art

[0002] In the prior art, in order to achieve large-scale and rapid intravenous infusion and avoid the pain of repeated punctures during physical therapy, critically ill patients usually insert a venous tube connector into the patient's body to facilitate medical staff to inject drugs and nutrient solutions into the patient's body. However, the existing central venous catheter is fixed to the patient's clothes by means of adhesive tape. During daily use, it frequently contacts the patient's body parts and is easily contaminated with the patient's sweat and the grease on the clothes or skin, causing the surface of the central venous catheter to become dirty after a period of use; in addition, the infusion end of the venous tube connector of the existing central venous catheter is not sealed, which is easy to breed bacteria during long-term use, and the insertion and removal of the infusion tube is easy to bring bacteria into the interior of the venous tube connector. Therefore, there is an urgent need for a venous tube connector protective device for central venous catheterization. On the one hand, it is necessary to prevent the central venous catheter from directly contacting the patient's skin and clothing, and on the other hand, it is necessary to protect the venous tube connector to achieve the effect of isolating bacteria. Utility Model Content

[0003] The purpose of the utility model is to provide a venous tube connector protection device for central venous catheterization to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0004] A venous tube connector protection device for central venous catheterization, the device comprising:

[0005] A central venous catheter, comprising a central venous catheter body and a venous tube connector, one end of the venous tube connector is connected to the central venous catheter body, and the other end of the venous tube connector is provided with a connecting end, and the connecting end is used to communicate with an infusion tube; and

[0006] The protective device includes a primary protective unit and a secondary protective unit. The primary protective unit is provided with a tube body mounting groove and a connecting device. The central venous catheter body is snap-connected in the tube body mounting groove. The connecting device is used to be fixed on the patient's clothes. The secondary protective unit includes a protective sleeve and an opening and closing device. The opening and closing device is arranged on the periphery of the venous tube connector. When the opening and closing device closes or connects the connecting end, the protective sleeve is sleeved and connected to the outside of the venous tube connector.

[0007] Preferably, the opening and closing device includes a handle, a rotating rod and a closure member, a mounting through hole is provided on the outer wall of the venous tube connector, one end of the rotating rod is fixedly connected to the handle, the other end of the rotating rod is fixedly connected to the closure member, and the rotating rod is rotatably connected to the mounting through hole, the closure member is arranged in the connecting end, and the closure member is provided with a flow hole, when the handle is rotated to connect the flow hole with the connecting end, it is a connecting action, and when the handle is rotated to disconnect the flow hole from the connecting end, it is a closing action.

[0008] Preferably, the closure member includes a first connecting member and a second connecting member, the top of the first connecting member is fixedly connected to the bottom of the second connecting member, and the flow hole is arranged on the first connecting member.

[0009] Preferably, the first connector is in the shape of a hemispherical shell, and the second connector is in the shape of a hemispherical shell provided with a notch, and the notch and the flow hole are arranged on the same side.

[0010] Preferably, the primary protection unit is a C-shaped protection plate, the C-shaped protection plate includes a flat plate and an arc-shaped plate, the side wall of the flat plate and the side wall of the arc-shaped plate are fixedly connected, and the connecting device is arranged on the flat plate.

[0011] Preferably, the tube body mounting groove includes a first mounting groove and a second mounting groove, the first mounting groove is arranged on the flat plate, the second mounting groove is arranged on the mounting end of the arc plate, and the mounting end is an end away from the flat plate and fixedly connected to the arc plate.

[0012] Preferably, the connecting device comprises rivets and buckles, the buckles are arranged on the flat plate, and the rivets are fixed to the patient's clothes after passing through the buckles.

[0013] Preferably, the protective sleeve comprises a first protective sleeve and a second protective sleeve, and when the first protective sleeve is sleeved on the outside of the opening and closing device, the second protective sleeve sleeves the entire outside of the intravenous tube connector.

[0014] Preferably, the venous tube connector comprises a first tube connector body, a nut sleeve and a second tube connector body, the second tube connector body is matched with the internal thread of the first tube connector body, the nut sleeve is arranged between the first tube connector body and the second tube connector body, and the nut sleeve is matched with the outer peripheral thread of the first tube connector body, and the opening and closing device is arranged on the outer periphery of the second tube connector body.

[0015] Preferably, the outer periphery of the second pipe joint body is provided with reinforcing ribs.

[0016] The beneficial effects of the utility model are:

[0017] This device introduces a primary protection unit and a secondary protection unit. The primary protection unit prevents the central venous catheter from directly contacting the patient's skin and clothing, so that the surface of the central venous catheter remains clean. When the primary protection unit is dirty, only the primary protection unit needs to be replaced. In addition, in the secondary protection unit, after the opening and closing device closes or connects the connecting end of the venous tube connector, the protective sleeve is connected to the outside of the venous tube connector to achieve the effect of isolating bacteria. In this device, the introduction of the opening and closing device avoids repeated insertion and removal of the infusion tube, and can prevent external bacteria from being brought into the venous tube connector.

[0018] Other features and advantages of the utility model will be described in the following description, and some of them will become obvious from the description, or be understood by implementing the embodiments of the utility model. The purpose and other advantages of the utility model can be achieved and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the connection structure between the venous tube connector and the opening and closing device in the embodiment of the utility model, and the connection end is in a closed state;

[0022] Figure 3 It is a structural schematic diagram of the opening and closing device described in the embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the connection structure between the venous tube connector and the opening and closing device in the embodiment of the utility model, and the connection end is in a connected state;

[0024] Figure 5 It is a schematic diagram of the structure of the protective sleeve described in the embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the first-level protection unit described in the embodiment of the utility model;

[0026] Figure 7This is a schematic diagram of the structure of the venous tube connector in the embodiment of the utility model;

[0027] Markings in the figure:

[0028] 11. Central venous catheter body; 12. Venous tube connector; 120. Connecting end; 121. First tube connector body; 122. Nut sleeve; 123. Second tube connector body; 201. First mounting slot; 202. Second mounting slot; 21. Primary protection unit; 211. Connecting device; 2111. Rivet; 2112. Nail button; 22. Secondary protection unit; 3. Infusion tube; 4. Opening and closing device; 41. Handle; 42. Rotating rod; 430. Circulation hole; 431. First connecting piece; 432. Second connecting piece; 51. First protective cover; 52. Second protective cover. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0030] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] like Figures 1 to 5 As shown, a venous tube connector protection device for central venous catheterization includes:

[0032] A central venous catheter, comprising a central venous catheter body 11 and a venous tube connector 12, one end of the venous tube connector 12 is connected to the central venous catheter body 11, and the other end of the venous tube connector 12 is provided with a connecting end 120, and the connecting end 120 is used to communicate with the infusion tube 3; and

[0033] The protective device includes a primary protective unit 21 and a secondary protective unit 22. The primary protective unit 21 is provided with a tube body mounting groove and a connecting device 211. The central venous catheter body 11 is snap-connected in the tube body mounting groove. The connecting device 211 is used to be fixed on the patient's clothes. The secondary protective unit 22 includes a protective sleeve and an opening and closing device 4. The opening and closing device 4 is arranged on the periphery of the venous tube connector 12, and when the opening and closing device 4 closes or connects the connecting end 120, the protective sleeve is sleeved and connected to the outside of the venous tube connector 12.

[0034] like Figures 2 to 4 As shown, in the present device, in order to clarify the specific structure of the opening and closing device 4, the opening and closing device 4 includes a handle 41, a rotating rod 42 and a closure member. A mounting through hole is provided on the outer wall of the venous tube connector 12, one end of the rotating rod 42 is fixedly connected to the handle 41, the other end of the rotating rod 42 is fixedly connected to the closure member, and the rotating rod 42 is rotatably connected to the mounting through hole, the closure member is arranged in the connecting end 120, and the closure member is provided with a flow hole 430. When the handle 41 is rotated to connect the flow hole 430 with the connecting end 120, it is a connecting action, and when the handle 41 is rotated to disconnect the flow hole 430 from the connecting end 120, it is a closing action.

[0035] In the above process, when the circulation hole 430 is connected to the connection end 120, an infusion operation can be performed; when the circulation hole 430 is not connected to the connection end 120, an infusion sealing operation can be performed.

[0036] In the present device, the closure member includes a first connecting member 431 and a second connecting member 432 , the top of the first connecting member 431 is fixedly connected to the bottom of the second connecting member 432 , and the flow hole 430 is provided on the first connecting member 431 .

[0037] Preferably, the first connector 431 is in the shape of a hemispherical shell, and the second connector 432 is in the shape of a hemispherical shell with a notch, and the notch is located on the same side as the flow hole 430 .

[0038] In this device, in order to clarify the specific structure of the primary protection unit 21, the primary protection unit 21 is a C-shaped protection plate, which includes a flat plate and an arc plate, the side wall of the flat plate and the side wall of the arc plate are fixedly connected, and the connecting device 211 is arranged on the flat plate. In order to strengthen the fixing effect, Velcro can also be introduced into the primary protection unit 21 to bind and wrap the central venous catheter.

[0039] like Figure 6As shown, when the central venous catheter body 11 is multi-cavity, the tube body mounting groove includes a first mounting groove 201 and a second mounting groove 202, wherein the first mounting groove 201 is arranged on the flat plate, and the second mounting groove 202 is arranged on the mounting end of the arc plate, and the mounting end is an end away from the flat plate and fixedly connected to the arc plate. At this time, the first mounting groove 201 and the second mounting groove 202 can be used to install different central venous catheter bodies.

[0040] In the present device, in order to clarify the specific structure of the connecting device 211, the connecting device 211 includes a rivet 2111 and a button 2112. The button 2112 is arranged on the flat plate, and the rivet 2111 passes through the button 2112 and is fixed to the patient's clothes.

[0041] In order to prevent external bacteria from entering the intravenous tube connector 12 , the protective cover includes a first protective cover 51 and a second protective cover 52 . When the first protective cover 51 is sleeved on the outside of the opening and closing device 4 , the second protective cover 52 is sleeved on the entire outside of the intravenous tube connector 12 .

[0042] like Figure 7 As shown, in the present device, in order to clarify the specific structure of the venous tube connector 12, the venous tube connector 12 includes a first tube connector body 121, a nut sleeve 122 and a second tube connector body 123, the second tube connector body 123 is matched with the internal thread of the first tube connector body 121, the nut sleeve 122 is arranged between the first tube connector body 121 and the second tube connector body 123, and the nut sleeve 122 is matched with the outer peripheral thread of the first tube connector body 121, and the opening and closing device 4 is arranged on the outer periphery of the second tube connector body 123.

[0043] In the second pipe joint body 123 , in order to enhance the structural stability of the second pipe joint body 123 in the circumferential direction, reinforcing ribs are disposed on the outer circumference of the second pipe joint body 123 .

[0044] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0045] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A venous tube connector protection device for central venous catheterization, characterized in that: include: A central venous catheter, comprising a central venous catheter body (11) and a venous tube connector (12), wherein one end of the venous tube connector (12) is connected to the central venous catheter body (11), and the other end of the venous tube connector (12) is provided with a connecting end (120), and the connecting end (120) is used to connect to an infusion tube (3); and The protective device comprises a primary protective unit (21) and a secondary protective unit (22), wherein the primary protective unit (21) is provided with a tube body installation groove and a connecting device (211), wherein the central venous catheter body (11) is snap-fitted and connected in the tube body installation groove, wherein the connecting device (211) is used to be fixed on the patient's clothes, and wherein the secondary protective unit (22) comprises a protective sleeve and an opening and closing device (4), wherein the opening and closing device (4) is arranged on the periphery of the venous tube connector (12), and when the opening and closing device (4) performs a sealing or connecting action on the connecting end (120), the protective sleeve is sleeved and connected to the outside of the venous tube connector (12).

2. A venous tube connector protection device for central venous catheterization according to claim 1, characterized in that: The opening and closing device (4) comprises a handle (41), a rotating rod (42) and a closure member. A mounting through hole is provided on the outer wall of the venous tube connector (12). One end of the rotating rod (42) is fixedly connected to the handle (41), and the other end of the rotating rod (42) is fixedly connected to the closure member. The rotating rod (42) is rotatably connected to the mounting through hole. The closure member is arranged in the connecting end (120). The closure member is provided with a circulation hole (430). When the handle (41) is rotated so that the circulation hole (430) is connected to the connecting end (120), it is a connecting action. When the handle (41) is rotated so that the circulation hole (430) is not connected to the connecting end (120), it is a closing action.

3. A venous tube connector protection device for central venous catheterization according to claim 2, characterized in that: The closure member comprises a first connecting member (431) and a second connecting member (432), the top of the first connecting member (431) is fixedly connected to the bottom of the second connecting member (432), and the flow hole (430) is arranged on the first connecting member (431).

4. A venous tube connector protection device for central venous catheterization according to claim 3, characterized in that: The first connecting member (431) is in the form of a hemispherical shell, and the second connecting member (432) is in the form of a hemispherical shell provided with a notch, and the notch is located on the same side as the flow hole (430).

5. A venous tube connector protection device for central venous catheterization according to claim 1, characterized in that: The primary protection unit (21) is a C-shaped protection plate, the C-shaped protection plate comprises a flat plate and an arc-shaped plate, the side wall of the flat plate and the side wall of the arc-shaped plate are fixedly connected, and the connection device (211) is arranged on the flat plate.

6. A venous tube connector protection device for central venous catheterization according to claim 5, characterized in that: The tube body mounting groove comprises a first mounting groove (201) and a second mounting groove (202), wherein the first mounting groove (201) is arranged on the flat plate, and the second mounting groove (202) is arranged on the mounting end of the arc plate, wherein the mounting end is an end away from the flat plate and fixedly connected to the arc plate.

7. A venous tube connector protection device for central venous catheterization according to claim 5, characterized in that: The connecting device (211) comprises a rivet (2111) and a button (2112), wherein the button (2112) is arranged on the plane plate, and the rivet (2111) passes through the button (2112) and is fixed to the patient's clothes.

8. A venous tube connector protection device for central venous catheterization according to claim 1, characterized in that: The protective sleeve comprises a first protective sleeve (51) and a second protective sleeve (52). When the first protective sleeve (51) is sleeved on the outside of the opening and closing device (4), the second protective sleeve (52) sleeves on the entire outside of the intravenous tube connector (12).

9. A venous tube connector protection device for central venous catheterization according to claim 1, characterized in that: The intravenous pipe joint (12) comprises a first pipe joint body (121), a nut sleeve (122) and a second pipe joint body (123); the second pipe joint body (123) is matched with the internal thread of the first pipe joint body (121); the nut sleeve (122) is arranged between the first pipe joint body (121) and the second pipe joint body (123); and the nut sleeve (122) is matched with the outer peripheral thread of the first pipe joint body (121); and the opening and closing device (4) is arranged on the outer periphery of the second pipe joint body (123).

10. A venous tube connector protection device for central venous catheterization according to claim 9, characterized in that: The outer periphery of the second pipe joint body (123) is provided with reinforcement ribs.

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