PICC (peripherally inserted central catheter) thrombolysis device

Abstract

The invention discloses a PICC (Peripherally Inserted Central Catheter) thrombolysis device which comprises a connector connected with a PICC pipeline; the liquid storage tank is connected with the connector; the negative pressure pipe generates a negative pressure environment in the connector; a first connector, a second connector and a third connector are arranged on the connector, the first connector and the second connector are arranged at the two ends of the connector respectively, a branch pipe is arranged on the connector, the third connector is arranged on the branch pipe, the liquid storage tank is connected to the second connector, and the negative pressure pipe is connected to the third connector; the liquid storage tank is filled with urokinase liquid; a sealing plate is arranged in the connecting cavity and seals the second connector. A first push rod is arranged on the negative pressure pipe, after the first push rod is pressed down, the sealing plate moves to the third connector to seal the third connector, the second connector is opened, and urokinase liquid enters the connector; the method has the advantage of being convenient to operate.

Description

Technical Field

[0001] The invention belongs to the technical field of PICC care devices, and in particular relates to a PICC catheter thrombolytic device. Background Art

[0002] In modern medical infusion therapy, medical staff always try to choose infusion devices that are less painful to patients, more convenient for patients to receive infusion therapy, and less irritating to patients' veins. PICC venous catheters can be left in the patient's vein for a long time, which can significantly reduce the number of infusion punctures for patients, facilitate infusion therapy, and are gradually accepted by patients and medical staff. According to the needs of the patient's disease, some diseases require long-term infusion, some tumor patients need to use chemotherapy drugs multiple times, and some patients are in the late stage of tumors and may need life-saving at any time. Infusion therapy, a venous channel needs to be left in place. Leaving a PICC catheter is the best choice for patients. PICC is a peripheral central venous catheter, which can not only be left in place for a long time, but also reduce the stimulation of chemotherapy drugs on the vein wall and facilitate infusion. If there is no abnormal discomfort, the retention time can be up to one year. However, after long-term retention of PICC catheters, they are prone to blockage. After blockage, the PICC tube needs to be connected to one interface of the three-way device, and the other interface is used to push urokinase thrombolysis, and the other interface is used to aspirate the blood clot after thrombolysis with an empty syringe. During the suction care of the blocked PICC pipeline, it is necessary to adjust the three-way interface, repeatedly use the syringe to push urokinase to dissolve the blood clot, and aspirate the thrombus dissolved by urokinase, which is not convenient to operate. Summary of the invention

[0003] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a PICC catheter thrombolytic device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a PICC catheter thrombolysis device, comprising: a connector, connected to the PICC pipeline; a liquid storage tank, connected to the connector; a negative pressure tube, which generates a negative pressure environment in the connector; a first connector, a second connector and a third connector are provided on the connector, the first connector and the second connector are respectively arranged at both ends of the connector, a branch tube is provided on the connector, the third connector is arranged on the branch tube, the liquid storage tank is connected to the second connector, and the negative pressure tube is connected to the third connector; urokinase solution is contained in the liquid storage tank; a sealing plate is provided in the connecting cavity, and the sealing plate closes the second connector; a first push rod is provided on the negative pressure tube, and after the first push rod is pressed, the sealing plate moves to the third connector to close the third connector and open the second connector, and the urokinase solution enters the connector.

[0006] Furthermore, a first extension tube is provided on the second connector, a second extension tube is provided on the third connector, a connection plate is provided in the connector, and a sealing plate is connected to the connection plate.

[0007] Furthermore, a first connecting shaft is provided on the connecting disk, the first connecting shaft is rotatably connected in the connector, a first connecting rod is provided on the sealing plate, a first movable groove is provided on the connecting disk, the first connecting rod is inserted in the first movable groove, and a first connecting spring is provided at one end of the first connecting rod.

[0008] Furthermore, a partition is provided in the negative pressure tube, which divides the negative pressure tube into an upper chamber and a lower chamber. A movable plate is provided in the lower chamber, and the cross section of the movable plate corresponds to the cross section of the lower chamber. When the first push rod moves into the negative pressure tube, the movable plate moves to the top of the upper chamber.

[0009] Furthermore, an extension rod is provided on the movable plate, the extension rod is passed through the upper cavity, a transmission plate is provided in the upper cavity, a connecting plate is provided on the transmission plate, and the first push rod is provided on the connecting plate; a transmission wheel is provided in the upper cavity, and the transmission wheel is used to drive the transmission plate and the extension rod.

[0010] Furthermore, a first protrusion is provided on the side wall of the connector, a first connecting groove is provided on the first protrusion, a first connecting shaft is inserted in the first connecting groove, a first connecting block is provided on the first protrusion, a second movable groove communicating with the first connecting groove is provided on the first connecting block, and a transmission rod which cooperates with the first connecting shaft for transmission is provided in the second movable groove.

[0011] Furthermore, a second connecting block is provided on the branch pipe, the second connecting block is connected to the first connecting block, the second connecting block is provided with a third movable groove communicating with the second movable groove, a first push plate is provided in the third movable groove, the transmission rod is connected to the first push plate, and a first support spring is provided at the bottom of the first push plate.

[0012] Furthermore, a fourth movable groove is provided on the first push rod, a second push plate is provided in the fourth movable groove, a second support spring is provided at the bottom of the second push plate, a second push rod is provided at the bottom of the second push plate, and the second push rod is located above the first push plate.

[0013] Furthermore, a second protrusion is provided on the side wall of the transmission plate, a movable cavity is provided on the first push rod, the movable cavity extends to the second protrusion, a through groove is provided on the second protrusion, the through groove passes through the movable cavity, a movable rod is provided in the movable cavity, a support block is provided on the movable rod, the support block is passed through the fourth movable groove, an elastic arc sheet is provided on the inner wall of the movable cavity, the elastic arc sheet rests on the movable rod; a guide hole is provided on the movable rod, the guide hole part is aligned with the through groove, a guide rod is passed through the through groove, and a guide block is provided on the guide rod.

[0014] Furthermore, a second connecting rod is provided on the branch pipe, a third connecting block is provided on the negative pressure tube, a second connecting groove corresponding to the second connecting rod is provided on the third connecting block, a fifth movable groove is provided on the second connecting rod, a fixed block is provided in the fifth movable groove, a second connecting spring is provided on the fixed block, one end of the second connecting spring is fixedly connected to the fifth movable groove, and a fixing groove corresponding to the fixed block is provided on the inner wall of the second connecting groove; a through cavity is provided on the side wall of the fixed groove, a groove is provided at one end of the through cavity, a push block is passed through the through cavity, a third push plate is provided at one end of the push block, and the third push plate is located in the groove.

[0015] The invention is beneficial in that it provides a PICC catheter thrombolytic device that is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0018] In the attached picture:

[0019] Figure 1 The figure is a schematic diagram of the structure of a PICC catheter thrombolytic device in one embodiment of the present invention.

[0020] Figure 2 for Figure 1 A cross-sectional view of the PICC catheter thrombolytic device in the illustrated embodiment.

[0021] Figure 3 for Figure 2 Enlarged view of point A in .

[0022] Figure 4 for Figure 2 Enlarged view of point B in .

[0023] Figure 5 for Figure 2 Enlarged view of point C in the figure.

[0024] Figure 6 for Figure 1 A cross-sectional view of the transmission rod of the PICC catheter thrombolysis device in the illustrated embodiment.

[0025] Figure 7 for Figure 1 A cross-sectional view of the first push plate of the PICC catheter thrombolysis device in the illustrated embodiment.

[0026] The meanings of the reference numerals in the figures are as follows:

[0027] 101, connector; 102, liquid storage tank; 103, negative pressure pipe; 104, branch pipe; 105, piston rod; 106, indicator plate; 107, first push rod; 108, second push plate; 109, second push rod; 110, second connecting block; 111, piston plate; 112, first extension pipe; 113, extension pipe; 115, connecting plate; 1151, first connecting shaft; 114, guide rod; 1141, guide block; 116, sealing plate; 1161, first connecting rod; 1162, first connecting spring; 117, second supporting spring; 118, movable rod; 118 1. Support block; 1182. Guide hole; 119. Elastic arc piece; 120. Partition plate; 121. Extension rod; 122. Transmission plate; 123. Third support spring; 124. Connecting plate; 125. Transmission wheel; 126. Movable plate; 127. Third connecting block; 128. Second connecting rod; 129. Fixed block; 1291. Second connecting spring; 130. Push block; 1301. Third push plate; 131. First push plate; 1311. First support spring; 132. First connecting block; 133. Transmission rod; 134. First protrusion; 135. Connecting pipe; 136. Cover plate. DETAILED DESCRIPTION

[0028] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0029] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0030] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0031] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0032] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0033] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] like Figure 1-7 As shown, a PICC catheter thrombolysis device includes a connector 101, a liquid storage tank 102 and a negative pressure tube 103: the connector 101 is connected to the PICC pipeline; the liquid storage tank 102 is connected to the connector 101, and the liquid storage tank 102 and the negative pressure tube 103 are both made of transparent materials, and the inside of the liquid storage tank 102 and the negative pressure tube 103 can be directly observed through the side walls of the liquid storage tank 102 and the negative pressure tube 103; the negative pressure tube 103 generates a negative pressure environment in the connector 101; the connector 101 is provided with a first connector, a second connector and a third connector, and the first connector and the second connector are respectively arranged at both ends of the connector 101 A branch pipe 104 is provided on the connector 101, a third connector is provided on the branch pipe 104, a liquid storage tank 102 is connected to the second connector, a negative pressure tube 103 is connected to the third connector, the first connector is a conical structure, and the first connector is connected to the PICC pipeline; urokinase solution can be added to the liquid storage tank 102; a sealing plate 116 is provided in the connecting cavity, and the sealing plate 116 closes the second connector; a first push rod 107 is provided on the negative pressure tube 103, and after the first push rod 107 is pressed, the sealing plate 116 moves to the third connector to close the third connector and open the second connector, and the urokinase solution enters the connector 101.

[0035] A first extension tube 112 is disposed on the second connector, and a second extension tube is disposed on the third connector. Both the first extension tube 112 and the second extension tube are located in the connector 101 . A connection plate 115 is disposed in the connector 101 , and a sealing plate 116 is connected to the connection plate 115 .

[0036] Specifically, a first connecting shaft 1151 is provided on the connecting disk 115, and the first connecting shaft 1151 is rotatably connected to the connector 101, a first connecting rod 1161 is provided on the sealing plate 116, and a first movable groove is provided on the connecting disk 115, and the first connecting rod 1161 is inserted into the first movable groove, and a first connecting spring 1162 is provided at one end of the first connecting rod 1161, and arc surfaces are respectively provided at both ends of the sealing plate 116 to prevent the sealing plate 116 from abutting against the side wall of the first extension tube 112 or the second extension tube when rotating. By utilizing the arrangement of the first connecting rod 1161 and the first connecting spring 1162, the sealing plate 116 can abut against the end face of the first extension tube 112 or the second extension tube, thereby improving the sealing effect of the sealing plate 116 on the first extension tube 112 and the second extension tube.

[0037] A partition 120 is provided in the negative pressure tube 103, which divides the negative pressure tube 103 into an upper chamber and a lower chamber. A movable plate 126 is provided in the lower chamber, and the cross section of the movable plate 126 corresponds to the cross section of the lower chamber. When the first push rod 107 moves into the negative pressure tube 103, the movable plate 126 moves to the top of the upper chamber.

[0038] More specifically, an extension rod 121 is provided on the movable plate 126, and the extension rod 121 is inserted into the upper cavity. A transmission plate 122 is provided in the upper cavity. A third supporting spring 123 is provided at the bottom of the transmission plate 122, and the third supporting spring 123 rests on the partition 120. A connecting plate 124 is provided on the transmission plate 122, and the first push rod 107 is provided on the connecting plate 124; a transmission wheel 125 is provided in the upper cavity, and a second connecting shaft is provided on the transmission wheel 125, and the second connecting shaft is rotatably connected to the inner wall of the upper cavity, and the transmission wheel 125 is used to transmit the transmission plate 122 and the extension rod 121.

[0039] A first protrusion 134 is provided on the side wall of the connector 101, a first connecting groove is provided on the first protrusion 134, a first connecting shaft 1151 is inserted into the first connecting groove, a first connecting block 132 is provided on the first protrusion 134, a second movable groove communicating with the first connecting groove is provided on the first connecting block 132, and a transmission rod 133 is provided in the second movable groove for transmission cooperation with the first connecting shaft 1151.

[0040] A second connecting block 110 is provided on the branch pipe 104, and the second connecting block 110 is connected to the first connecting block 132. A third movable groove communicating with the second movable groove is provided on the second connecting block 110, and a first push plate 131 is provided in the third movable groove. The transmission rod 133 is connected to the first push plate 131, and a first supporting spring 1311 is provided at the bottom of the first push plate 131, and the first supporting spring 1311 is against the bottom surface of the third movable groove.

[0041] A fourth movable groove is provided on the first push rod 107, a second push plate 108 is provided in the fourth movable groove, a second support spring 117 is provided at the bottom of the second push plate 108, the bottom end of the second support spring 117 is against the bottom surface of the fourth movable groove, a second push rod 109 is provided at the bottom of the second push plate 108, and the second push rod 109 is above the first push plate 131.

[0042] A second protrusion is provided on the side wall of the transmission plate 122, and an active cavity is provided on the first push rod 107, which extends to the second protrusion. A through groove is provided on the second protrusion, which runs through the active cavity. A movable rod 118 is provided in the active cavity, and a support block 1181 is provided on the movable rod 118. The support block 1181 is passed through the fourth active groove. An elastic arc piece 119 is provided on the inner wall of the active cavity, and the elastic arc piece 119 rests on the movable rod 118; a guide hole 1182 is provided on the movable rod 118, and a part of the guide hole 1182 is aligned with the through groove. A guide rod 114 is passed through the through groove, and a guide block 1141 is provided on the guide rod 114. A first oblique groove is provided on the bottom surface of the support block 1181, and a second oblique groove is provided on the top surface of the guide block 1141.

[0043] A second connecting rod 128 is provided on the branch pipe 104, a third connecting block 127 is provided on the negative pressure pipe 103, a second connecting groove corresponding to the second connecting rod 128 is provided on the third connecting block 127, a fifth movable groove is provided on the second connecting rod 128, a fixing block 129 is provided in the fifth movable groove, a second connecting spring 1291 is provided on the fixing block 129, one end of the second connecting spring 1291 is fixedly connected to the fifth movable groove, and a fixing groove corresponding to the fixing block 129 is provided on the inner wall of the second connecting groove; the fixing groove A through cavity is provided on the side wall, a groove is provided at one end of the through cavity, a push block 130 is passed through the through cavity, a third push plate 1301 is provided at one end of the push block 130, and the third push plate 1301 is in the groove; that is, the negative pressure tube 103 only needs to align the second connecting groove and the second connecting rod 128 to connect the negative pressure tube 103 to the branch pipe 104, and position the second push rod 109 so that the second push rod 109 can be located above the first push plate 131, so that the second push rod 109 can be used to push the first push plate 131 to move.

[0044] A piston plate 111 is provided in the liquid storage tank 102, and a piston rod 105 is provided on the piston plate 111. The piston rod 105 extends out of the liquid storage tank 102, and an indicator plate 106 is provided on one end of the piston rod 105 outside the liquid storage tank 102. By observing the position of the indicator plate 106, the remaining liquid in the liquid storage tank 102 can be judged; the liquid storage tank 102 is connected to the second connector by a thread.

[0045] When clearing the PICC pipeline, the second push plate 108 is pushed toward the connector 101. At this time, the sealing plate 116 abuts against the first extension tube 112 to close the liquid storage tank 102. The support block 1181 is inserted into the fourth movable groove and abuts against the bottom of the second push plate 108. The second push plate 108 cannot move alone. The second push plate 108 drives the first push rod 107 to move. The transmission plate 122 moves with the first push rod 107 and uses the transmission wheel 125 to drive the extension rod 121 to move. The movable plate 126 moves to the top of the upper cavity, and a negative pressure state is formed in the PICC pipeline by the movement of the movable plate 126. After the transmission plate 122 cannot be lowered, the guide hole 1182 moves to the position of the guide block 1141, and the guide block 1141 abuts against the inner wall of the guide hole 1182 to push the movable rod 118 Move, the support block 1181 moves into the active cavity and continues to push the second push plate 108, the second push plate 108 moves to the bottom of the fourth active groove, the second push plate 108 drives the second push rod 109 to move downward and pushes the first push plate 131 to move, the transmission rod 133 drives the first connecting shaft 1151 to rotate so that the connecting disk 115 rotates, and the sealing plate 116 moves from one end of the first extension tube 112 to one end of the second extension tube, the liquid storage tank 102 opens the negative pressure tube 103 to close, and the liquid medicine in the liquid storage tank 102 is injected into the PICC pipeline through negative pressure to dredge the pipeline; after the liquid medicine enters the PICC pipeline, the second push plate 108 is released, and the third push plate 1301 is pushed to remove the negative pressure tube 103, and a syringe is connected to the third connector to aspirate blood and dredge the pipeline.

[0046] As a further preferred embodiment, a connecting tube 135 is provided on the side wall of the negative pressure tube 103, and a cover plate 136 is connected to the connecting tube 135 through a thread, and the cover plate 136 closes the connecting tube 135; when drawing back blood, the cover plate 136 is opened, and the syringe is connected to the connecting tube 135 to perform the blood drawing operation, without removing the negative pressure tube 103 and then connecting the syringe, thereby reducing the risk of infection and simplifying the operation process.

[0047] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A PICC catheter thrombolytic device, characterized in that: include: A connector, connected to the PICC line; a liquid storage tank connected to the connector; A negative pressure tube, which generates a negative pressure environment in the connector; The connector is provided with a first connector, a second connector and a third connector, the first connector and the second connector are respectively provided at two ends of the connector, the connector is provided with a branch pipe, the third connector is provided on the branch pipe, the liquid storage tank is connected to the second connector, and the negative pressure tube is connected to the third connector; the liquid storage tank is filled with urokinase liquid; a sealing plate is provided in the connecting cavity, and the sealing plate closes the second connector; the negative pressure tube is provided with a first push rod, and after the first push rod is pressed, the sealing plate moves to the third connector to close the third connector and open the second connector, and the urokinase liquid enters into the connector.

2. The PICC catheter thrombolytic device according to claim 1, characterized in that: The second connector is provided with a first extension tube, the third connector is provided with a second extension tube, a connection disk is provided in the connector, and the sealing plate is connected to the connection disk.

3. The PICC catheter thrombolytic device according to claim 2, characterized in that: A first connecting shaft is provided on the connecting disk, and the first connecting shaft is rotatably connected to the connector. A first connecting rod is provided on the sealing plate. A first movable groove is provided on the connecting disk, and the first connecting rod is inserted into the first movable groove. A first connecting spring is provided at one end of the first connecting rod.

4. The PICC catheter thrombolytic device according to claim 1, characterized in that: A partition is provided in the negative pressure tube, and the partition divides the negative pressure tube into an upper chamber and a lower chamber. A movable plate is provided in the lower chamber, and the cross-section of the movable plate corresponds to the cross-section of the lower chamber. When the first push rod moves into the negative pressure tube, the movable plate moves toward the top of the upper chamber.

5. The PICC catheter thrombolytic device according to claim 4, characterized in that: An extension rod is provided on the movable plate, the extension rod is inserted into the upper cavity, a transmission plate is provided in the upper cavity, a connecting plate is provided on the transmission plate, and the first push rod is provided on the connecting plate; a transmission wheel is provided in the upper cavity, and the transmission wheel is used to drive the transmission plate and the extension rod.

6. The PICC catheter thrombolytic device according to claim 5, characterized in that: A first protrusion is provided on the side wall of the connector, a first connecting groove is provided on the first protrusion, the first connecting shaft is inserted into the first connecting groove, a first connecting block is provided on the first protrusion, a second movable groove communicating with the first connecting groove is provided on the first connecting block, and a transmission rod that cooperates with the first connecting shaft for transmission is provided in the second movable groove.

7. The PICC catheter thrombolytic device according to claim 6, characterized in that: The branch pipe is provided with a second connecting block, the second connecting block is connected to the first connecting block, the second connecting block is provided with a third movable groove connected to the second movable groove, the third movable groove is provided with a first push plate, the transmission rod is connected to the first push plate, and the bottom of the first push plate is provided with a first support spring.

8. The PICC catheter thrombolytic device according to claim 7, characterized in that: A fourth movable groove is provided on the first push rod, a second push plate is provided in the fourth movable groove, a second support spring is provided at the bottom of the second push plate, a second push rod is provided at the bottom of the second push plate, and the second push rod is located above the first push plate.

9. The PICC catheter thrombolytic device according to claim 8, characterized in that: A second protrusion is provided on the side wall of the transmission plate, a movable cavity is provided on the first push rod, the movable cavity extends to the second protrusion, a through groove is provided on the second protrusion, the through groove passes through the movable cavity, a movable rod is provided in the movable cavity, a support block is provided on the movable rod, the support block is passed through the fourth movable groove, an elastic arc sheet is provided on the inner wall of the movable cavity, the elastic arc sheet rests on the movable rod; a guide hole is provided on the movable rod, the guide hole part is aligned with the through groove, a guide rod is passed through the through groove, and a guide block is provided on the guide rod.

10. The PICC catheter thrombolytic device according to claim 1, characterized in that: A second connecting rod is provided on the branch pipe, a third connecting block is provided on the negative pressure pipe, a second connecting groove corresponding to the second connecting rod is provided on the third connecting block, a fifth movable groove is provided on the second connecting rod, a fixed block is provided in the fifth movable groove, a second connecting spring is provided on the fixed block, one end of the second connecting spring is fixedly connected to the fifth movable groove, and a fixing groove corresponding to the fixed block is provided on the inner wall of the second connecting groove; a through cavity is provided on the side wall of the fixed groove, a groove is provided at one end of the through cavity, a push block is passed through the through cavity, a third push plate is provided at one end of the push block, and the third push plate is located in the groove.

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