Puncture assembly and puncture system

Abstract

The invention discloses a puncture assembly and a puncture system, and the puncture assembly comprises a hollow puncture needle; the peristaltic pump is communicated with the puncture needle and is used for conveying target liquid in an external infusion container into the puncture needle; the control switch is electrically connected with the peristaltic pump and used for controlling the peristaltic pump to be opened and closed. According to the design, the operation process of the puncture assembly can be simplified.

Description

Technical Field

[0001] The present application relates to the field of medical machinery technology, and in particular to a puncture assembly and a puncture system. Background Art

[0002] Before the radiofrequency ablation surgery, it is generally necessary to inject tumescent fluid into the target blood vessels to treat varicose veins of the lower limbs. A special radiofrequency ablation catheter is placed in the vein and heat is generated at the catheter tip to achieve the purpose of occluding the vein. The injection of tumescent fluid plays a key role in this process. It not only helps to empty the blood in the vein and ensure full contact between the radiofrequency catheter and the vein wall, but also reduces thermal damage and improves the surgical effect.

[0003] The current method of injecting tumescent fluid is for the operator to slowly inject the tumescent fluid through a syringe. Since most syringes are 10-20ml, when treating varicose veins, nearly 500ml of tumescent fluid needs to be injected, and an ultrasound probe is used at the same time, so at least two operators are required to cooperate in the operation, repeatedly extracting the fluid and then injecting the fluid into the target blood vessel. At the same time, the syringe needle is prone to injecting air during the suction process, affecting ultrasound observation. At the same time, the needle will repeatedly draw at the same position, increasing the number of punctures and increasing the burden on the patient. If a 50ml syringe is used for injection, resistance will increase and it will be difficult to push. Summary of the invention

[0004] The present application provides a puncture assembly and a puncture system, which can improve and simplify the operation process of the puncture assembly.

[0005] The first aspect of the present application provides a puncture assembly, which includes: a puncture needle, which is hollow; a peristaltic pump, which is connected to the puncture needle and is used to transport the target liquid in an external infusion container to the puncture needle; and a control switch, which is electrically connected to the peristaltic pump and is used to control the opening and closing of the peristaltic pump.

[0006] A second aspect of the present application provides a puncture system, which includes the puncture assembly described in any one of the above embodiments.

[0007] Different from the prior art, the beneficial effects of the present application are as follows: the present application controls the peristaltic pump through the control switch to pump the target liquid into the puncture needle, thereby injecting it into the target position, and can also control the peristaltic pump through the control switch to stop pumping the target liquid into the puncture needle, thereby stopping injection into the target position, realizing the integration of puncture and control, and the operator only needs to operate the control switch to realize control, and realize automatic delivery of the target liquid through simple switch control, reducing the risk and complexity of manual operation, and simplifying the operation method. At the same time, the peristaltic pump is externally connected to the infusion container, and the infusion container is not limited by the size of the container. The infusion container can be an infusion bag and an infusion bottle, etc. The volume is significantly increased compared to the syringe. The container of the infusion bag and the infusion bottle can reach more than 500ml. Therefore, there is no need to repeat the puncture, only one puncture is required, and there is no need to repeatedly push the syringe. In summary, the design of the present application can simplify the operation process of the puncture component. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0009] Figure 1 It is a structural schematic diagram of an embodiment of the puncture assembly of the present application;

[0010] Figure 2 It is a structural schematic diagram of an embodiment of the puncture system of the present application;

[0011] Figure 3 It is a flowchart of the operating method of the puncture system of the present application. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0013] In the present invention, when describing the puncture assembly, "distal" and "proximal" are used as directional words, which are commonly used terms in the field of interventional medical devices, where "distal" refers to the end away from the operator during the operation, and "proximal" refers to the end close to the operator during the operation.

[0014] See also Figure 1In a first aspect, the present application provides a puncture assembly, which includes a puncture needle 110, a peristaltic pump 120 and a control switch 130. The puncture needle 110 is hollow; the peristaltic pump 120 is connected to the puncture needle 110, and the peristaltic pump 120 is used to transport the target liquid in the external infusion container 20 to the puncture needle 110; the control switch 130 is electrically connected to the peristaltic pump 120, and the control switch 130 is used to control the opening and closing of the peristaltic pump 120.

[0015] Specifically, the puncture needle 110 is a hollow puncture needle, wherein the hollow part is used to transport the target liquid, and the distal end of the puncture needle 110 is a sharp tip. When the puncture needle 110 is used for puncture, the distal end of the puncture needle 110 is aligned with the target position for puncture, wherein the target liquid may be a swelling anesthetic solution, etc., and the target position may be a human tissue or organ, such as a blood vessel, etc. Further, the proximal end of the puncture needle 110 is connected to the liquid outlet of the peristaltic pump 120, and the peristaltic pump 120 pumps the target liquid from its liquid inlet to its liquid outlet by rotating, and the liquid inlet may be connected to the external infusion container 20, so that the peristaltic pump 120 can pump the target liquid in the infusion container 20 into the puncture needle 110, thereby injecting it into the target position. The control switch 130 is electrically connected to the peristaltic pump 120, so that the switching state of the peristaltic pump 120 can be controlled by manipulating the closing and opening of the control switch 130. It can be understood that when the peristaltic pump 120 is turned on, the peristaltic pump 120 rotates, and the peristaltic pump 120 outputs the target liquid into the puncture needle 110; when the peristaltic pump 120 is turned off, the peristaltic pump 120 stops rotating, and the peristaltic pump 120 stops outputting the target liquid into the puncture needle 110.

[0016] As can be seen from the above content, the present application controls the peristaltic pump 120 to pump the target liquid into the puncture needle 110 through the control switch 130, thereby injecting it into the target position. The peristaltic pump 120 can also be controlled by the control switch 130 to stop pumping the target liquid into the puncture needle 110, thereby stopping injecting it into the target position, realizing the integration of puncture and control, and the operator only needs to operate the control switch 130 to realize the control. Through simple switch control, the automatic delivery of the target liquid is realized, the risk and complexity of manual operation are reduced, and the operation method is simplified. At the same time, the peristaltic pump 120 is externally connected to the infusion container 20, and the infusion container 20 is not limited by the size of the container. The infusion container 20 can be an infusion bag and an infusion bottle, etc. The volume is significantly increased compared to the syringe. The container of the infusion bag and the infusion bottle can reach more than 500ml. Therefore, there is no need to repeat the puncture, only one puncture is required, and there is no need to repeatedly push the syringe. In summary, the design of the present application can simplify the operation process of the puncture component.

[0017] In one embodiment, the puncture assembly further includes a handle 140 , which is sleeved on at least a portion of the outer circumference of the puncture needle 110 , and the distal end of the puncture needle 110 extends from the handle 140 , wherein the control switch 130 is disposed on the outer surface of the handle 140 .

[0018] Specifically, at least part of the outer periphery of the puncture needle 110 is provided with a handle 140, which is convenient for the operator to hold. The handle 140 needs to be placed at the proximal end of the puncture needle 110, and the distal end of the puncture needle 110 needs to be exposed to ensure that there is enough distance for insertion into the target position. The control switch 130 is provided on the outer surface of the handle 140. After the operator holds the handle 140 to perform the puncture, he can directly press the control switch 130 on the handle 140 to inject the target liquid into the target position. It can be seen that the above-mentioned puncture action and pressing action can be completed by one hand without changing hands or using multiple hands to complete, thereby simplifying the entire operation process.

[0019] In one embodiment, the puncture assembly further includes a first infusion tube 150 and a wire 160 . The first infusion tube 150 connects the puncture needle 110 with the peristaltic pump 120 ; the wire 160 electrically connects the control switch 130 with the peristaltic pump 120 .

[0020] Specifically, the first infusion tube 150 is used to deliver the target liquid at the outlet of the peristaltic pump 120 to the puncture needle 110. The first infusion tube 150 is a soft tube. The length of the first infusion tube 150 can be 1m, 2m or 3m, etc., which increases the freedom of the operator to hold the handle 140 for puncture. The operator does not need to carry the peristaltic pump 120 for walking and puncture. The peristaltic pump 120 can be placed on the table and then hold the handle 140 for puncture. The first infusion tube 150 can make the operator's operation more flexible and free. The wire 160 is used to electrically connect the control switch 130 and the peristaltic pump 120. The length of the wire 160 can be close to the length of the first infusion tube 150.

[0021] In one embodiment, the puncture assembly further includes a coating layer 170 covering the periphery of the first infusion tube 150 and the guide wire 160. This design is to better protect the guide wire 160 and the first infusion tube 150 and prevent the operator from messing up the guide wire 160 and the first infusion tube 150 when walking. The periphery of the first infusion tube 150 and the guide wire 160 is coated with the coating layer 170, and the coating layer 170 can be a material similar to the first infusion tube 150, of course, it can also be other soft polymer materials.

[0022] In some other embodiments, the guide wire 160 and the first infusion tube 150 may also be fixed together by a fixing member.

[0023] In one embodiment, the puncture assembly further includes a speed switch 180 , which is disposed on the outer surface of the handle 140 . The speed switch 180 is electrically connected to the peristaltic pump 120 , and is used to adjust the rotation speed of the peristaltic pump 120 .

[0024] Specifically, the operator can adjust the rotation speed of the peristaltic pump 120 by adjusting the speed control switch 180. The faster the rotation speed of the peristaltic pump 120, the faster the target liquid is pumped out. The flow rate of the target liquid is adjusted by the speed control switch 180, and the speed control switch 180 is set on the handle 140 to facilitate timely control by the operator. The speed control switch 180 can be a knob, a button or a control valve.

[0025] In some other embodiments, the speed regulating switch may also be provided on the peristaltic pump 120 .

[0026] In one embodiment, the control switch 130 is a button switch, and the control switch 130 is configured to: when being pressed, control the peristaltic pump 120 to turn on, and when being released, control the peristaltic pump 120 to turn off.

[0027] Specifically, the button switch needs to be pressed continuously by the operator to be turned on, thereby controlling the peristaltic pump 120 to be in the on state all the time. When the operator releases it, it will be closed immediately. That is, a locking mechanism is obtained in this way, which can be closed by simply releasing it. Compared with the ordinary switch that needs to be pressed again to be closed, this can shorten the time from the operator's reaction to the completion of the peristaltic pump 120 closing, reduce the possibility of excessive injection of the target liquid, and at the same time, the operator needs to press continuously to inject the target liquid, which improves the safety of the injection.

[0028] In one embodiment, the puncture assembly further includes a power supply 190, which is electrically connected to the peristaltic pump 120 and the control switch 130. The power supply 190 supplies power to the peristaltic pump 120, and the voltage of the power supply 190 may be 9V. The power supply 190 may be a battery, which is convenient for operators to use in different situations.

[0029] In one embodiment, the puncture assembly further includes a first packaging shell 210, and the power supply 190 and the peristaltic pump 120 are disposed inside the first packaging shell 210. The present application further places the power supply 190 and the peristaltic pump 120 inside the first packaging shell 210, which can protect the power supply 190 and the peristaltic pump 120 and facilitate the operator to carry them.

[0030] In one embodiment, the puncture assembly further includes an extension tube 220 , one end of the extension tube 220 is connected to the peristaltic pump 120 , and the other end of the extension tube 220 is used to connect to the external infusion container 20 .

[0031] Specifically, setting up the extension tube 220 requires directly connecting the infusion container 20 to the liquid inlet of the peristaltic pump 120 . The length of the extension tube 220 can be 1m, 2m or 5m, etc. The extension tube 220 can facilitate the placement or hanging of the infusion container 20 .

[0032] A second aspect of the present application further provides a puncture system 10, which includes a puncture assembly 20 in any one of the above-mentioned embodiments.

[0033] It should be noted that the detailed structure of the puncture assembly 20 in the puncture system 10 can refer to the embodiment of the puncture assembly 20, which will not be repeated here; since the puncture assembly 20 is used in the puncture system 10 of the present application, the embodiment of the puncture system 10 of the present application includes all technical solutions of all embodiments of the puncture assembly 20, and the technical effects achieved are also exactly the same, which will not be repeated here.

[0034] Combination Figures 1 to 3 In a second aspect, the present application provides an operating method of a puncture system, which is applied to the puncture assembly in any of the above embodiments. The method of the present application includes:

[0035] S100: Puncture the puncture needle 110 to the target position.

[0036] Specifically, by holding the puncture needle 110, illustratively, in one application scenario, the puncture needle 110 is punctured to a target position by holding the handle 140, and the target position is a human tissue or organ.

[0037] S200: Turn on the peristaltic pump 120 by controlling the switch 130 to pump the target liquid in the infusion container 20 into the puncture needle 110 and into the target position.

[0038] Specifically, after completing step S100, the puncture needle 110 has punctured the target position, and the target liquid can be injected into the target position. The peristaltic pump 120 is turned on by manipulating the control switch 130 to pump the target liquid in the infusion container 20 and finally inject it into the target position.

[0039] S300 : turning off the peristaltic pump 120 by controlling the switch 130 to stop pumping the target liquid in the infusion container 20 into the puncture needle 110 .

[0040] Specifically, when the injection reaches a predetermined amount of the target liquid, the operator manipulates the control switch 130 to turn off the peristaltic pump 120, thereby stopping the injection of the target liquid toward the target.

[0041] It can be seen from the above content that the present application can realize automatic control of the injection of the target liquid by combining the control switch 130 and the peristaltic pump 120. Through simple switch control, the automatic delivery of the target liquid is realized, which reduces the risk and complexity of manual operation and simplifies the operation method. At the same time, the peristaltic pump 120 is externally connected to the infusion container 20. The infusion container 20 is not limited by the size of the container. The infusion container 20 can be an infusion bag and an infusion bottle, etc. The volume is significantly increased compared to the syringe. The container of the infusion bag and the infusion bottle can reach more than 500ml. Therefore, there is no need to repeat the puncture, only one puncture is required, and there is no need to repeatedly push the syringe. In summary, the method of the present application can simplify the operation process of the puncture component.

[0042] In one embodiment, the puncture assembly further includes a handle 140, which is sleeved on at least a portion of the periphery of the puncture needle 110, and the distal end of the puncture needle 110 extends from the handle 140, wherein the control switch 130 is disposed on the outer surface of the handle 140. The above step S200 includes: pressing the control switch 130. The above step S300 includes: releasing the control switch 130.

[0043] Specifically, in the method of the present application, the injection can be performed by pressing the control switch 130, which can improve the safety of the injection to a certain extent. And the injection can be stopped by releasing the control switch 130, which can shorten the time from the operator's reaction to the completion of the peristaltic pump 120 closing, and reduce the possibility of excessive injection of the target liquid.

[0044] In one embodiment, the method of the present application further includes: one hand controls the control switch 130 to turn on or off, and the other hand controls the ultrasound probe.

[0045] Specifically, the puncture assembly of the present application can be used to hold the handle 140 with one hand, so that puncture and injection can be completed with one hand, so that the other hand can be used to hold the ultrasound probe to observe the puncture and injection of the target position in real time. It can be seen that the above process can be completed by one person, while the existing technology requires the cooperation of multiple people to complete it. The method of the present application can simplify the operation, reduce the cooperation of operators, and thus reduce the corresponding risks.

[0046] In one application scenario, the puncture assembly of the present application can be a disposable product, and can also be packaged together with a radiofrequency catheter, etc., so as to be sterilized and used.

[0047] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A puncture assembly, characterized in that: The puncture assembly comprises: The puncture needle is hollow; a peristaltic pump, connected to the puncture needle, for delivering the target liquid in the external infusion container to the puncture needle; A control switch is electrically connected to the peristaltic pump and is used to control the opening and closing of the peristaltic pump.

2. The puncture assembly according to claim 1, characterized in that: Also includes: A handle is sleeved on at least a portion of the outer circumference of the puncture needle, and the distal end of the puncture needle extends out of the handle, wherein the control switch is arranged on the outer surface of the handle.

3. The puncture assembly according to claim 2, characterized in that: Also includes: a first infusion tube, connecting the puncture needle and the peristaltic pump; A wire electrically connects the control switch and the peristaltic pump.

4. The puncture assembly according to claim 3, characterized in that: Also includes: The coating layer is coated around the first infusion tube and the outer periphery of the guide wire.

5. The puncture assembly according to claim 2, characterized in that: Also includes: A speed regulating switch is arranged on the outer surface of the handle, is electrically connected to the peristaltic pump, and is used to adjust the rotation speed of the peristaltic pump.

6. The puncture assembly according to claim 1, characterized in that: The control switch is a button switch, which is configured to: when pressed, control the peristaltic pump to turn on, and when released, control the peristaltic pump to turn off.

7. The puncture assembly according to claim 1, characterized in that: Also includes: A power supply is electrically connected to the peristaltic pump and the control switch.

8. The puncture assembly according to claim 7, characterized in that: Also includes: A first packaging shell, the power supply and the peristaltic pump are arranged inside the first packaging shell.

9. The puncture assembly according to claim 1, characterized in that: Also includes: An extension tube, one end of which is connected to the peristaltic pump, and the other end of which is used to be connected to the external infusion container.

10. A puncture system, characterized in that: The puncture system comprises the puncture assembly according to any one of claims 1 to 9.

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