Device for preventing offset of medical three-channel spin valve and bending of infusion tube and infusion device

Abstract

The invention provides a device for preventing a medical three-channel spin valve from deviating and an infusion tube from being bent. The device comprises a mechanism for preventing the medical three-channel spin valve from deviating, a mechanism for preventing the infusion tube from being bent and an elastic band. The mechanism for preventing the medical three-channel spin valve from deviating comprises a base, a clamping seat and a spring, a circular groove for clamping a valve seat of the medical three-channel spin valve is formed in the middle of the top of the base, and concave arc-shaped grooves corresponding to the three branch connectors are formed in the top of the base; the infusion tube bending prevention mechanism is arranged on the side, close to an infusion branch connector of the medical three-channel spin valve, of the base. The two ends of the elastic band are connected to the base. The medical three-channel spin valve connected with the pipeline is worn on the arm through the elastic band, and the dosing branch joint of the medical three-channel spin valve faces upwards, so that even if the arm of an unconscious patient, a plant patient or an unconscious patient is close to the chest, the dosing branch joint cannot be pressed on the skin, and the skin of the patient is effectively prevented from being injured by pressing; meanwhile, the arranged spiral sleeve can prevent the infusion tube from being bent.

Description

Technical Field

[0001] The present invention relates to the technical field of hemodialysis, and in particular to a device and an infusion device for preventing a medical three-channel rotary valve from deflecting and an infusion tube from bending. Background Art

[0002] If the patient requires long-term infusion, such as chemotherapy, intravenous nutrition, or infusion of hyperosmolar drugs, the PICC tube is inserted into the central vein through a peripheral vein, and the outer end of the PICC tube is connected to the PICC branch connector of the disposable medical three-channel rotary valve. The infusion branch connector of the disposable medical three-channel rotary valve can be connected to the infusion tube to infuse the central vein, and the dosing branch connector of the disposable medical three-channel rotary valve can be connected to the dosing tube to add drug treatment to the central vein.

[0003] The above-mentioned PICC tube infusion has the following deficiencies:

[0004] 1. When connecting the infusion branch connector of the disposable medical three-channel rotary valve to the infusion tube, the infusion tube needs to be bent into an arc section near one end of the medical three-channel rotary valve and adhered to the arm with medical tape. The purpose is to prevent this section of the infusion tube from bending and affecting the infusion. However, once the patient's arm sweats or moves the arm, the medical tape may fall off the arm. Once the infusion tube attached to the arm falls off, it will be found that the infusion tube is bent and affects the infusion, and the medical staff needs to re-adhere it. In addition, when the medical tape falls off or is torn off from the arm, it will leave glue marks, which also increases the workload of subsequent processing of the glue marks.

[0005] 2. For comatose patients, vegetative patients, or patients who are unconscious and unable to move, since the branch connectors of the disposable medical three-channel rotary valve are made of hard material, the PICC tube and infusion tube are all movable and sealed connections with the branch connectors. When the dosing branch connector is not in use, once the dosing branch connector is rotated to press against the patient's chest and skin, the pressure time is too long, which is easy to injure the patient's skin. Summary of the Invention

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides a device and an infusion device for preventing a medical three-channel rotary valve from deflecting and an infusion tube from bending.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The device for preventing the medical three-channel rotary valve from deflecting and the infusion tube from bending comprises a mechanism for preventing the medical three-channel rotary valve from deflecting, a mechanism for preventing the infusion tube from bending and an elastic band; the mechanism for preventing the medical three-channel rotary valve from deflecting comprises a base, a clamping seat and a spring; a circular groove for clamping the valve seat of the medical three-channel rotary valve is provided in the middle of the top of the base, and the top of the base and the outer side of the circular groove are respectively provided with concave arc grooves corresponding to the three branch joints of the medical three-channel rotary valve, and the top of the base and the two sides of the concave arc groove are provided with sliding grooves perpendicular to the concave arc groove, and one end of the clamping seat is located at the sliding groove. The groove is arranged in cooperation with the slide groove, and the other end of the holder extends vertically out of the top of the base. The holder is located at the top of the base and is provided with a concave slot on one side close to the concave arc slot. The spring is placed in the slide groove, and one end of the spring is pressed on the end of the slide groove away from the concave arc slot, and the other end of the spring is pressed on one end of the holder; the mechanism for preventing the infusion tube from bending is arranged on one side of the base close to the infusion branch connector of the medical three-channel rotary valve; one end of the elastic band is connected to one side of the base close to the dosing branch connector of the medical three-channel rotary valve, and the other end of the elastic band is connected to the other side of the base.

[0009] As a preferred embodiment of the present invention, the mechanism for preventing the infusion tube from bending includes a spiral sleeve and a connecting belt. The spiral sleeve is formed by a polyvinyl chloride tube with a spiral groove arranged along the spiral direction and penetrating the wall of the polyvinyl chloride tube. One end of the spiral groove penetrates one end of the polyvinyl chloride tube, and the other end of the spiral groove penetrates the other end of the polyvinyl chloride tube. One end of the connecting belt is connected to one side of the infusion branch connector of the base close to the medical three-channel stopcock, and the other end of the connecting belt is connected to one end of the spiral sleeve.

[0010] As a preferred solution of the present invention, the base is an L-shaped base, the slide groove is an L-shaped slide groove, the side of the L-shaped slide groove close to the concave arc groove passes through the top of the base, and the side of the L-shaped base close to the concave arc groove passes through the top of the L-shaped slide groove.

[0011] As a preferred solution of the present invention, the two ends of the elastic band are connected to two symmetrical sides of the base.

[0012] As a preferred solution of the present invention, there are two connecting belts, one end of which is connected to one side of the infusion branch connector of the base close to the medical three-channel rotary valve, and the other end of the two connecting belts is connected to one end of the spiral sleeve close to the base.

[0013] As a preferred solution of the present invention, the width of the holder above the base is greater than the width of the slide groove.

[0014] As a preferred solution of the present invention, a curved sliding surface is provided on the top of the holder near the corresponding concave arc groove to facilitate the insertion of the branch connector of the medical three-channel rotary valve; and a layer of soft pad is provided at the bottom of the base.

[0015] An infusion device comprises a medical three-channel rotary valve, an infusion tube, a PICC tube, and the aforementioned device for preventing the medical three-channel rotary valve from deflecting and the infusion tube from bending; the infusion branch connector of the medical three-channel rotary valve is connected to the liquid outlet end of the infusion tube, the PICC branch connector of the medical three-channel rotary valve is connected to the PICC tube, and the spiral sleeve is spirally wrapped around one end of the infusion tube near the medical three-channel rotary valve; the bottom of the valve body of the medical three-channel rotary valve is snapped into a circular groove of the base, and the three branch connectors of the medical three-channel rotary valve correspond one-to-one with the three concave arc grooves on the top of the base and snap into the concave slots of a corresponding set of holders.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is provided with a circular groove on the top of the base for the valve seat of the medical three-channel rotary valve to be snapped in and an inwardly concave arc groove corresponding to the three branch connectors. The infusion branch connector of the medical three-channel rotary valve is connected to the liquid outlet end of the infusion tube, and the PICC branch connector of the medical three-channel rotary valve is connected to the PICC tube. The spiral sleeve is spirally wrapped around one end of the infusion tube close to the medical three-channel rotary valve; the bottom of the valve body of the medical three-channel rotary valve is snapped into the circular groove of the base, and the three branch connectors of the medical three-channel rotary valve are connected to the The three concave arc grooves on the top of the base correspond one by one and are inserted into the concave slots of a corresponding set of holders. The medical three-channel rotary valve with the pipelines connected is worn on the arm through an elastic band. The infusion branch connector and the PICC branch connector of the medical three-channel rotary valve are parallel to the length of the arm, and the medication branch connector of the medical three-channel rotary valve faces upward. Even if the arm of a comatose patient, a vegetative patient, or an unconscious and immobile patient is against the chest, the medication branch connector will not be pressed on the skin, effectively avoiding pressure injury to the patient's skin.

[0018] 2. The base is connected to a spiral sleeve by a connecting belt. The spiral sleeve is put on one end of the infusion tube close to the medical three-channel stopcock in a spiral winding manner. Once the section of the infusion tube close to the arm undergoes a transitional bend, the inner spiral groove of the bent portion becomes narrower and contacts to form support, preventing the deformed spiral sleeve from further bending, thereby effectively preventing the infusion tube inside from bending too much. Therefore, there is no need to use medical tape for bonding, and it also avoids leaving glue marks after bonding with the medical tape.

[0019] 3. The base not only fixes the medical three-channel rotary valve, but also cooperates with the elastic band to be put on the arm, and also plays the role of positioning the pipe interfaces connected to the various branch connectors of the medical three-channel rotary valve. It can be well fixed on the arm, avoiding the use of medical tape for bonding and fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a device for preventing a medical three-channel rotary valve from deflecting and an infusion tube from bending;

[0021] Figure 2 It is a structural schematic diagram of a medical three-channel rotary valve being clamped on a device that prevents the medical three-channel rotary valve from shifting and the infusion tube from bending;

[0022] Figure 3 This is a front view of a mechanism for preventing a medical three-channel rotary valve from shifting;

[0023] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure along the A-A direction;

[0024] Figure 5 yes Figure 3 Schematic diagram of the cross-sectional structure along the B-B direction;

[0025] Figure 6 This is a structural diagram of the top of the base with symmetrically arranged slide grooves on both sides of the concave arc groove;

[0026] Figure 7 It is a structural diagram of the deck;

[0027] Figure 8 It is a schematic diagram of the structure of the infusion device when used clinically.

[0028] In the figure: 1—mechanism for preventing the deviation of the medical three-channel rotary valve; 11—base; 111—circular groove; 112—inwardly concave arc groove; 113—slide groove; 12—clamping seat; 121—inwardly concave clamping groove; 122—arc-shaped sliding surface; 13—spring; 2—mechanism for preventing the infusion tube from bending; 21—spiral sleeve; 22—connecting belt; 23—spiral groove; 3—elastic band; 4—medical three-channel rotary valve; 41—infusion branch connector; 42—dosing branch connector; 43—PICC branch connector; 5—infusion tube; 6—PICC tube; 7—arm; 8—cushion. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the embodiments and accompanying drawings.

[0030] like Figure 1 and Figure 2As shown, the device for preventing the medical three-channel rotary valve from deflecting and the infusion tube from bending comprises a medical three-channel rotary valve deflection prevention mechanism 1, an infusion tube bending prevention mechanism 2 and an elastic band 3.

[0031] The medical three-channel rotary valve displacement prevention mechanism 1 includes a base 11, a clamping seat 12 and a spring 13. Figure 3 and Figure 4 As shown. A layer of soft pad 8 is provided at the bottom of the base 11 to prevent the base 11 from pressing the arm skin when worn on the arm through the elastic band 3. A circular groove 111 is provided in the middle of the top of the base 11 for the valve seat of the medical three-channel rotary valve 4 to be clamped. The top of the base 11 and the outer side of the circular groove 111 are respectively provided with concave arc grooves 112 corresponding to the three branch connectors of the medical three-channel rotary valve 4 (i.e., the infusion branch connector 41, the dosing branch connector 42 and the PICC branch connector 43). Figure 5 As shown, the medical three-channel rotary valve 4 is a prior art, so it will not be described in detail. The top of the base 11 and both sides of the concave arc groove 112 are provided with a slide groove 113 perpendicular to the concave arc groove 112, as shown in FIG. Figure 6 As shown, the slide 113 is an L-shaped slide, and the side of the L-shaped slide close to the concave arc groove 112 passes through the top of the base 11. One end of the card seat 12 is located in the slide 112 and slides with the slide 112, and the other end of the card seat 12 extends vertically from the top of the base 11, as shown in FIG. Figure 4 As shown, the card seat 12 is located at the top of the base 11 and is provided with a concave card slot 121 on one side close to the concave arc slot 112. The card seat 12 is an L-shaped card seat. Figure 7 As shown, the side of the L-shaped holder close to the concave arc groove 112 passes through the top of the L-shaped slide, the bottom of the L-shaped holder is located at the bottom of the L-shaped slide and slides together, the top of the L-shaped holder extends out of the top of the L-shaped slide, and the sliding stroke of the L-shaped holder is the length of the top opening of the L-shaped slide. The width of the holder 12 located above the base 11 is greater than the width of the slide 113, so that the concave slot 121 on the holder 12 has sufficient clamping width. A curved sliding surface 122 is provided on the side of the top of the holder 12 close to the corresponding concave arc groove 112 to facilitate the insertion of the branch connector of the medical three-channel rotary valve 4. The spring 13 is placed in the slide 113, one end of the spring 13 is pressed on the end of the slide 113 away from the concave arc groove 112, and the other end of the spring 13 is pressed on one end of the holder 12, as shown in FIG. Figure 4 shown.

[0032] The infusion tube bending prevention mechanism 2 is arranged on one side of the base 11 close to the infusion branch connector 41 of the medical three-channel rotary valve 4, and the infusion tube bending prevention mechanism 2 includes a spiral sleeve 21 and a connecting belt 22, as shown in FIG. Figure 1 and Figure 2As shown, the spiral sleeve 21 is formed by a polyvinyl chloride (PVC) conduit with a spiral groove 23 extending through the conduit wall along the spiral direction. One end of the spiral groove 23 extends through one end of the PVC conduit, and the other end extends through the other end of the PVC conduit. One end of a connecting strap 22 is connected to the side of the base 11 near the infusion branch connector 41 of the medical three-channel stopcock 4, and the other end of the connecting strap 22 is connected to one end of the spiral sleeve 21. Two connecting straps 22 are provided, one end of each connecting strap 22 being connected to the side of the base 11 near the infusion branch connector of the medical three-channel stopcock 4, and the other end of each connecting strap 22 being connected to the end of the spiral sleeve 21 near the base 11. The connecting belt 22 not only serves to connect the spiral sleeve 21, but also serves to pull the spiral sleeve 21 after the spiral sleeve 21 is spirally wound onto the infusion tube 5, thereby preventing the spiral sleeve 21 from sliding on the infusion tube 5 toward the side of the infusion branch connector 41 away from the medical three-channel rotary valve 4.

[0033] One end of the elastic band 3 is connected to one side of the base 11 near the dosing branch connector 42 of the medical three-channel stopcock 4, and the other end of the elastic band 3 is connected to the other side of the base 11. In this embodiment, the two ends of the elastic band 3 are connected to the two symmetrical sides of the base 11. The base 11 cooperates with the elastic band 3. After the medical three-channel stopcock 4 is installed on the base 11, it is put on the arm 7 through the elastic band 3. Figure 8 As shown, the infusion branch connector 41 and the PICC branch connector 42 of the medical three-channel rotary valve 4 are parallel to the length direction of the arm 7, and the medication branch connector 43 of the medical three-channel rotary valve 4 is facing upward. Even if the arm 7 of a comatose patient, a vegetative patient, or an unconscious and immobile patient is close to the chest, the medication branch connector 43 of the medical three-channel rotary valve 4 will not press on the skin, effectively avoiding crushing the patient's skin; the base 11 and the elastic band 3 are matched to be sleeved on the arm 7, which not only plays the role of fixing the medical three-channel rotary valve 4, but also plays the role of positioning the pipeline interfaces connected to the various branch connectors of the medical three-channel rotary valve 4, without the need to use medical tape for bonding and fixing for positioning.

[0034] An infusion device, comprising a medical three-channel stopcock 4, an infusion tube 5, a PICC tube 6, and the above-mentioned device for preventing the medical three-channel stopcock from deflecting and the infusion tube from bending, such as Figure 8 As shown, the infusion branch connector of the medical three-channel stopcock 4 is connected to the liquid outlet end of the infusion tube 5, and the PICC branch connector 43 of the medical three-channel stopcock 4 is connected to the PICC tube 6. The spiral sleeve 21 is spirally wrapped around the end of the infusion tube 5 near the medical three-channel stopcock 4. The bottom of the valve body of the medical three-channel stopcock 4 is inserted into the circular groove 111 of the base 11. The three branch connectors of the medical three-channel stopcock 4 correspond one-to-one with the three concave arc grooves 112 on the top of the base 11 and are inserted into a corresponding set of concave grooves 121 of the holder 12.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for preventing a medical three-channel rotary valve from deflecting and an infusion tube from bending, characterized by: It comprises a mechanism for preventing a medical three-channel rotary valve from deflecting (1), a mechanism for preventing an infusion tube from bending (2), and an elastic band (3); The medical three-channel rotary valve displacement prevention mechanism (1) comprises a base (11), a clamping seat (12) and a spring (13); a circular groove (111) for clamping the valve seat of the medical three-channel rotary valve (4) is provided in the middle of the top of the base (11); an inwardly concave arcuate groove (112) corresponding to the three branch joints of the medical three-channel rotary valve (4) is provided on the top of the base (11) and on the outside of the circular groove (111); and a sliding groove (112) perpendicular to the inwardly concave arcuate groove (112) is provided on the top of the base (11) and on both sides of the inwardly concave arcuate groove (112). 13), one end of the card seat (12) is located in the slide groove (112) and slides with the slide groove (112), the other end of the card seat (12) vertically extends out of the top of the base (11), the card seat (12) is located at the top of the base (11) and is provided with a concave card groove (121) on one side close to the concave arc groove (112), the spring (13) is placed in the slide groove (113), one end of the spring (13) is pressed on the end of the slide groove (113) away from the concave arc groove (112), and the other end of the spring (13) is pressed on one end of the card seat (12); The infusion tube bending prevention mechanism (2) is arranged on one side of the base (11) close to the infusion branch connector of the medical three-channel rotary valve (4); one end of the elastic band (3) is connected to one side of the base (11) close to the dosing branch connector of the medical three-channel rotary valve (4), and the other end of the elastic band (3) is connected to the other side of the base (11).

2. The device for preventing the deviation of a medical three-channel stopcock and the bending of an infusion tube according to claim 1, characterized in that: The infusion tube bending prevention mechanism (2) comprises a spiral sleeve (21) and a connecting belt (22); the spiral sleeve (21) is formed by a polyvinyl chloride tube having a spiral groove (23) provided along a spiral direction and penetrating the wall of the polyvinyl chloride tube; one end of the spiral groove (23) penetrates one end of the polyvinyl chloride tube, and the other end of the spiral groove (23) penetrates the other end of the polyvinyl chloride tube; one end of the connecting belt (22) is connected to a side of the base (11) close to the infusion branch connector of the medical three-channel rotary valve (4), and the other end of the connecting belt (22) is connected to one end of the spiral sleeve (21).

3. The device for preventing the deviation of a medical three-channel stopcock and the bending of an infusion tube according to claim 2, characterized in that: The card seat (12) is an L-shaped card seat, and the slide groove (113) is an L-shaped slide groove. The side of the L-shaped slide groove close to the concave arc groove (112) passes through the top of the base (11), and the side of the L-shaped card seat close to the concave arc groove (112) passes through the top of the L-shaped slide groove.

4. The device for preventing the deviation of a medical three-channel stopcock and the bending of an infusion tube according to claim 3, characterized in that: The two ends of the elastic band (3) are connected to two symmetrical sides of the base (11).

5. The device for preventing the deviation of a medical three-channel stopcock and the bending of an infusion tube according to claim 4, characterized in that: There are two connecting belts (22), one end of each connecting belt (22) is connected to one side of the base (11) close to the infusion branch connector of the medical three-channel rotary valve (4), and the other end of each connecting belt (22) is connected to one end of the spiral sleeve (21) close to the base (11).

6. The device for preventing a medical three-channel stopcock from deflecting and an infusion tube from bending according to any one of claims 1 to 5, characterized in that: The width of the card seat (12) located above the base (11) is greater than the width of the slide groove (113).

7. The device for preventing the deviation of a medical three-channel stopcock and the bending of an infusion tube according to claim 6, characterized in that: A curved sliding surface (122) is provided on one side of the top of the holder (12) close to the corresponding concave arc groove (112) to facilitate the insertion of the branch connector of the medical three-channel rotary valve (4); and a layer of soft pad (8) is provided on the bottom of the base (11).

8. An infusion device, characterized in that: It comprises a medical three-channel stopcock (4), an infusion tube (5), a PICC tube (6), and a device for preventing the medical three-channel stopcock from deflecting and the infusion tube from bending as described in any one of claims 1 to 7; The infusion branch connector of the medical three-channel rotary valve (4) is connected to the liquid outlet end of the infusion tube (5), the PICC branch connector of the medical three-channel rotary valve (4) is connected to the PICC tube (6), and the spiral sleeve (21) is sheathed on one end of the infusion tube (5) close to the medical three-channel rotary valve (4) in a spiral winding manner; The bottom of the valve body of the medical three-channel rotary valve (4) is clamped into the circular groove (111) of the base (11), and the three branch connectors of the medical three-channel rotary valve (4) correspond one-to-one to the three concave arc grooves (112) on the top of the base (11) and are clamped into the concave grooves (121) of a corresponding set of clamping seats (12).

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