Suction puncture device for laparoscopic surgery

Abstract

The aspiration puncture device comprises an aspirator control valve, a switching cap, a puncture needle and a first aspiration tube, the aspirator control valve is provided with a threaded hole, one end of the switching cap is provided with a first threaded connection portion, the other end of the switching cap is provided with an opening, a clamping groove is formed in the opening, and the first threaded connection portion is provided with a second threaded connection portion. A first clamping part is arranged at the head end of the puncture needle, a second clamping part is arranged at the head end of the first suction tube, the first threaded connection part of the conversion cap is connected with a threaded hole of a suction apparatus control valve, and the puncture needle and the first suction tube are fixedly connected with a clamping groove through the first clamping part and the second clamping part respectively. According to the aspiration puncture device, the aspirator control valve is alternately connected with the aspiration tube and the puncture needle, the conversion process is fast, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a suction and puncture device for laparoscopic surgery. Background Art

[0002] Conventional suction control valves can only be connected to suction tubes and are used for flushing and suctioning in minimally invasive surgeries. Puncture needles, on the other hand, are used for aspiration of bile during laparoscopic gallbladder surgery, aspiration of fluid from ovarian cysts during laparoscopic surgery, and injection of medication during laparoscopic uterine surgery.

[0003] Existing puncture needles are usually connected to syringes to perform drug box aspiration or are directly connected to suction equipment for aspiration. This operation method is cumbersome, difficult for one person to operate, and the suction force of the aspirator and the drainage volume during aspiration cannot be controlled.

[0004] In addition, the interface of the existing aspirator control valve is usually not compatible with the head end of the puncture needle, so that the puncture needle cannot be connected to the aspirator control valve. Utility Model Content

[0005] The technical problem to be solved by the present invention is to provide a suction puncture device for laparoscopic surgery in response to the above-mentioned deficiencies in the prior art. The suction puncture device for laparoscopic surgery adopts an aspirator control valve to be alternately connected with the suction tube and the puncture needle, and the switching process is fast, thereby improving the efficiency of the operation.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A suction and puncture device for laparoscopic surgery includes an aspirator control valve, a conversion cap, a puncture needle, and a first suction tube. The aspirator control valve is provided with a threaded hole, one end of the conversion cap is provided with a first threaded connection portion, and the other end is provided with an opening, a card slot is provided in the opening, the head end of the puncture needle is provided with a first clamping portion, and the head end of the first suction tube is provided with a second clamping portion. The first threaded connection portion of the conversion cap is connected to the threaded hole of the aspirator control valve, and the puncture needle and the first suction tube are fixedly connected to the card slot through the first clamping portion and the second clamping portion, respectively.

[0008] Preferably, a convex portion is provided on the inner wall of the card slot, and the first clamping portion and the second clamping portion are annular protrusions respectively provided on the head ends of the puncture needle and the first suction tube, and a flat portion is provided on the annular protrusion. When the convex portion of the card slot is aligned with the flat portion of the annular protrusion, the puncture needle and the first suction tube can be inserted into the card slot. When the puncture needle and the first suction tube are rotated so that the convex portion of the card slot is misaligned with the flat portion of the annular protrusion, the puncture needle and the first suction tube are fixedly connected to the conversion cap.

[0009] Preferably, the convex portion includes a first convex block and a second convex block, the first convex block and the second convex block are respectively arranged on both sides of the inner wall of the slot, and the annular protrusion is provided with two flat portions, which are located on opposite sides of the annular protrusion.

[0010] Preferably, the suction and puncture device for laparoscopic surgery further comprises a second suction tube, the head end of the second suction tube is provided with a second threaded connection portion, and can be directly connected to the threaded hole of the suction control valve through the second threaded connection portion.

[0011] Preferably, the suction puncture device for laparoscopic surgery also includes a suction unit and a water inlet pipe. The suction control valve is also provided with a water inlet and a suction connection port. The water inlet pipe is connected to the water inlet, and the suction unit is used to be connected to the suction connection port.

[0012] Preferably, the suction device control valve adopts a push type or a hand push type.

[0013] The threaded opening of the aspirator control valve of the suction and puncture device for laparoscopic surgery in the present invention is connected to a conversion cap, so that the first clamping portion of the puncture needle and the second clamping portion of the first suction tube can be connected to the aspirator control valve by simply engaging with the clamping groove in the opening of the conversion cap. This solves the problem of the threaded opening of the conventional aspirator control valve not being compatible with the puncture needle tip. At the same time, using the first suction tube with the same tip, the conversion cap can be used to quickly connect and replace the puncture needle or the first suction tube at the same time. The conversion process is fast, which can effectively improve the efficiency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the suction and puncture device using a press-type suction control valve in Example 1 of the present invention;

[0015] Figure 2 This is a schematic structural diagram of the suction and puncture device using a hand-push type suction control valve in Example 1 of the present utility model;

[0016] Figure 3 This is a schematic structural diagram of the control valve of the push-type suction device in Example 1 of the present utility model;

[0017] Figure 4 This is a schematic structural diagram of the annular protrusion and the flat portion in Example 1 of the present utility model;

[0018] Figure 5 This is a schematic diagram of the internal structure of the conversion cap in Example 1 of the present utility model;

[0019] Figure 6 It is a side view of the conversion cap in Example 1 of the present utility model.

[0020] In the figure: 100-suction device control valve, 110-threaded hole, 120-water inlet, 130-suction connection port, 200-conversion cap, 210-first threaded connection part, 220-slot, 300-puncture needle, 400-first suction tube, 500-annular protrusion, 510-flat part, 600-first bump, 610-second bump. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions of the utility model in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of the utility model.

[0022] In the description of the present invention, it should be noted that the term "upper" and the like to indicate an orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "connect," "dispose," "install," "fix," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; they may refer to direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] The utility model provides a suction and puncture device for laparoscopic surgery, comprising a suction device control valve, a conversion cap, a puncture needle, and a first suction tube, wherein the suction device control valve is provided with a threaded hole, one end of the conversion cap is provided with a first threaded connection portion, and the other end is provided with an opening, a card slot is provided in the opening, the head end of the puncture needle is provided with a first clamping portion, and the head end of the first suction tube is provided with a second clamping portion, the first threaded connection portion of the conversion cap is connected to the threaded hole of the suction device control valve, and the puncture needle and the first suction tube are fixedly connected to the card slot via the first clamping portion and the second clamping portion, respectively.

[0026] Example 1

[0027] like Figure 1 、2 As shown in Figures 5 and 6, this embodiment discloses a suction and puncture device for laparoscopic surgery, comprising an aspirator control valve 100, a conversion cap 200, a puncture needle 300, and a first suction tube 400. The aspirator control valve 100 is provided with a threaded hole 110, and one end of the conversion cap 200 is provided with a first threaded connection portion 210. The first threaded connection portion 210 is provided with an external thread that mates with the threaded hole 110 of the aspirator control valve 100. The other end of the conversion cap 200 is provided with an opening, and a slot 220 is provided in the opening.

[0028] The tip of the puncture needle 300 is provided with a first clamping portion, and the tip of the first suction tube 400 is provided with a second clamping portion. The first clamping portion and the second clamping portion are identical in shape and size. The first threaded connection portion 210 of the conversion cap 200 is connected to the threaded hole 110 of the aspirator control valve 100. The puncture needle 300 and the first suction tube 400 are fixedly connected to the clamping slot 220 via the first clamping portion and the second clamping portion, respectively. This allows the same aspirator control valve 100 to be connected to the puncture needle 300 and the first suction tube 400, allowing them to be used alternately. When the first suction tube 400 is in use, it is connected to the clamping slot 220 via the second clamping portion, and when the puncture needle 300 is in use, it is connected to the clamping slot 220 via the first clamping portion.

[0029] In this embodiment, the inner wall of the slot 220 is provided with a convex portion. The first and second engaging portions are annular protrusions 500 provided at the tips of the puncture needle 300 and the first suction tube 400, respectively. The annular protrusions 500 are provided with a flat portion 510. When the convex portion of the slot 220 is aligned with the flat portion 510 of the annular protrusion 500, the puncture needle 300 and the first suction tube 400 can be inserted into the slot 220. When the puncture needle 300 and the first suction tube 400 are rotated so that the convex portion of the slot 220 and the flat portion 510 of the annular protrusion 500 are misaligned, the puncture needle 300 and the first suction tube 400 are fixedly connected to the conversion cap 200. Generally, a 90° rotation can secure the annular protrusion 500 to the convex portion of the slot 220.

[0030] like Figure 4 、 5As shown, specifically, the convex portion includes a first protrusion 600 and a second protrusion 610, which are respectively arranged on both sides of the inner wall of the card slot 220, and two flat portions 510 are provided on the annular protrusion 500, and the two flat portions 510 are located on opposite sides of the annular protrusion 500. When inserting the puncture needle 300 or the first suction tube 400 into the slot 220, first align the two flat portions 510 of the annular protrusion 500 with the first protrusion 600 and the second protrusion 610 in the slot 220 so that the puncture needle 300 or the first suction tube 400 will not be blocked by the first protrusion 600 and the second protrusion 610 during the insertion process. When the annular protrusion 500 reaches below the first protrusion 600 and the second protrusion 610, the puncture needle 300 or the first suction tube 400 rotates 90°, so that the convex portion of the slot 220 and the flat portion 510 of the annular protrusion 500 are misaligned. At this time, the slot 220 can firmly clamp the puncture needle 300 or the first suction tube 400.

[0031] Optionally, the suction and puncture device for laparoscopic surgery further includes a second suction tube. Unlike the first suction tube 400, the tip of the second suction tube is a second threaded connection portion that can be directly connected to the threaded hole 110 of the suction control valve 100. In this embodiment, the second suction tube serves as a backup option. When the puncture needle 300 is not needed during surgery, or when the conversion cap 200 is damaged, or in other special circumstances, the second suction tube can be directly connected to the suction control valve 100.

[0032] like Figure 3 As shown, the suction and puncture device for laparoscopic surgery also includes a suction unit and a water inlet pipe. The suction control valve 100 is also provided with a water inlet 120 and a suction connection port 130. The water inlet pipe is connected to the water inlet 120, and the suction unit is used to connect to the suction connection port 130. The suction unit is used to generate suction, and the water inlet pipe is used to supply water. When it is necessary to flush the patient's abdominal cavity, the first valve of the suction control valve 100 is controlled so that the water in the water inlet pipe enters the patient's abdominal cavity along the first suction tube 400 for flushing. When it is necessary to aspirate the accumulated fluid in the patient's lesion, the second valve of the suction control valve 100 is opened, and the suction generated by the suction unit aspirates the accumulated fluid.

[0033] Specifically, the suction control valve 100 is a push-type or a hand-push type. The push-type suction control valve 100 opens or closes the first valve or the second valve by pressing, and the hand-push type suction control valve 100 opens or closes the first valve or the second valve by pushing or pulling.

[0034] The threaded opening of the suction control valve 100 of the suction puncture device for laparoscopic surgery in the present invention is connected to the conversion cap 200, so that the first clamping part of the puncture needle 300 and the second clamping part of the first connecting tube only need to be clamped with the clamping groove 220 in the opening of the conversion cap 200 to complete the connection with the suction control valve 100, solving the problem that the threaded opening of the traditional suction control valve 100 is not compatible with the head end of the puncture needle 300, and also solving the problems that the puncture needle 300 is cumbersome to operate, difficult for one person to operate, and the suction and drainage volume cannot be controlled.

[0035] By using the same first suction tube 400 tip, the switch cap 200 allows for quick simultaneous connection and replacement of either the puncture needle 300 or the first suction tube 400. This rapid conversion process effectively improves surgical efficiency. Furthermore, this embodiment includes a second suction tube as a backup. This second suction tube can be directly connected to the aspirator control valve 100 when the puncture needle 300 is no longer needed during surgery, when the switch cap 200 is damaged, or in other special circumstances.

[0036] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A suction and puncture device for laparoscopic surgery, characterized in that: It includes an aspirator control valve (100), a conversion cap (200), a puncture needle (300), and a first aspiration tube (400). The suction control valve (100) is provided with a threaded hole (110), one end of the conversion cap (200) is provided with a first threaded connection portion (210), and the other end is provided with an opening, wherein a slot (220) is provided in the opening. The head end of the puncture needle (300) is provided with a first clamping portion, and the head end of the first suction tube (400) is provided with a second clamping portion. The first threaded connection portion (210) of the conversion cap (200) is connected to the threaded hole (110) of the aspirator control valve (100), and the puncture needle (300) and the first aspiration tube (400) are fixedly connected to the card slot (220) via the first clamping portion and the second clamping portion, respectively.

2. The suction and puncture device for laparoscopic surgery according to claim 1, characterized in that: The inner wall of the card slot (220) is provided with a convex portion, the first clamping portion and the second clamping portion are annular protrusions (500) respectively provided on the head ends of the puncture needle (300) and the first suction tube (400), and a flat portion (510) is provided on the annular protrusion (500). When the convex portion of the card slot (220) is aligned with the flat portion (510) of the annular protrusion (500), the puncture needle (300) and the first suction tube (400) can be inserted into the card slot (220); when the puncture needle (300) and the first suction tube (400) are rotated so that the convex portion of the card slot (220) and the flat portion (510) of the annular protrusion (500) are misaligned, the puncture needle (300) and the first suction tube (400) are fixedly connected to the conversion cap (200).

3. The suction and puncture device for laparoscopic surgery according to claim 2, characterized in that: The convex portion includes a first convex block (600) and a second convex block (610), wherein the first convex block (600) and the second convex block (610) are respectively arranged on both sides of the inner wall of the card slot (220). Two flat portions (510) are provided on the annular protrusion (500), and the two flat portions (510) are located on two opposite sides of the annular protrusion (500).

4. The suction and puncture device for laparoscopic surgery according to claim 1, characterized in that: It also includes a second suction tube, the head end of which is provided with a second threaded connection portion, and can be directly connected to the threaded hole (110) of the suction device control valve (100) through the second threaded connection portion.

5. The suction and puncture device for laparoscopic surgery according to claim 1, characterized in that: It also includes a suction unit, a water inlet pipe, The suction device control valve (100) is further provided with a water inlet (120) and a suction connection port (130); the water inlet pipe is connected to the water inlet (120); and the suction unit is used to be connected to the suction connection port (130).

6. The suction and puncture device for laparoscopic surgery according to claim 5, characterized in that: The suction device control valve (100) is a push-type or a hand-push type.

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