Laparoscope puncture outfit

Abstract

The laparoscope puncture outfit comprises an annular block, a push plate is arranged on the right side of the annular block, a puncture sheath shell is fixedly connected to the left side face of the annular block, a puncture needle head is connected to the inner ring of the puncture sheath shell in a sliding mode, and a puncture needle rod is fixedly connected to the right side face of the puncture needle head. A fixing groove is formed in the outer surface of the puncture needle rod, a sliding groove is formed in the inner ring of the annular block, a spring is fixedly connected to the inner top wall of the sliding groove, a sliding clamping block is fixedly connected to the bottom end of the spring, the bottom end of the sliding clamping block extends into the fixing groove, and the outer surface of the sliding clamping block is in close contact with the inner wall of the fixing groove. The left side face of the annular block is fixedly connected with a threaded connecting ring, and the inner ring of the threaded connecting ring is in threaded connection with a protective cover. The laparoscope puncture outfit is provided with a clamping and fixing structure, the phenomenon that the puncture needle rod and the puncture needle head fall off in the puncture sheath shell is avoided, and puncture use of the puncture outfit is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of laparoscopic puncture instruments, in particular to laparoscopic puncture instruments. Background Art

[0002] The laparoscopic puncture device is mainly composed of a puncture sheath and a puncture needle. The surgeon first puts the puncture needle into the puncture sheath, then applies a certain force to the tail of the puncture device, uses the sharp tip of the puncture needle to pierce the abdominal wall so that the entire puncture device enters the abdominal cavity, and then pulls out the puncture needle, leaving the puncture sheath as a surgical channel.

[0003] In actual use, the current laparoscopic puncture device needs to pierce the abdominal wall and insert the puncture needle into the abdominal cavity. However, there is no corresponding clamping structure between the puncture sheath and the puncture needle. When taking the puncture sheath and the puncture needle, the puncture needle is easy to slip out of the inside of the puncture sheath, which in turn affects the puncture use of the puncture device. Therefore, we propose a laparoscopic puncture device to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a laparoscopic puncture device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The laparoscopic puncture device comprises an annular block, a push plate is provided on the right side of the annular block, a puncture sheath is fixedly connected to the left side of the annular block, a puncture needle is slidably connected to the inner ring of the puncture sheath, a puncture needle is fixedly connected to the right side of the puncture needle, a fixing groove is provided on the outer surface of the puncture needle rod, a sliding groove is provided on the inner ring of the annular block, a spring is fixedly connected to the inner top wall of the sliding groove, a sliding block is fixedly connected to the bottom end of the spring, the bottom end of the sliding block extends to the inside of the fixing groove, and the outer surface of the sliding block is in close contact with the inner wall of the fixing groove.

[0007] In a further embodiment, a threaded connection ring is fixedly connected to the left side surface of the annular block, an inner ring of the threaded connection ring is threadedly connected to a protective cover, and the protective cover is located outside the puncture sheath.

[0008] In a further embodiment, a plurality of connecting rods are fixedly connected to the left side of the push plate, a buffer pad is provided on the left side of the push plate, and a left end of each connecting rod is fixedly connected to the right side of the buffer pad.

[0009] In a further embodiment, the right side surface of the annular block is fixedly connected to a limiting ring, and the left side surface of the buffer pad is in contact with the right side surface of the limiting ring.

[0010] In a further embodiment, two limit grooves are provided on the inner side wall of the slide groove, the inner walls of the two limit grooves are slidably connected to limit blocks, and the side surfaces of the two limit blocks close to each other are fixedly connected to the outer surface of the sliding block.

[0011] In a further embodiment, the inner ring of the puncture sheath is provided with two positioning grooves, the inner walls of the two positioning grooves are slidably connected with positioning blocks, and the side surfaces of the two positioning blocks close to each other are fixedly connected to the outer surface of the puncture needle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is provided with a positioning groove on the puncture sheath, and cooperates with the positioning block outside the puncture needle, so that the positioning block can slide inside the positioning groove, which plays a role in positioning and guiding the puncture needle when it is installed. Through the spring and the fixed block inside the sliding groove, and the fixed groove outside the puncture needle rod, the sliding block can be inserted into the fixed groove for locking and fixing, and then a clamping and fixing structure is provided, which prevents the puncture needle rod and the puncture needle from falling off inside the puncture sheath, thereby ensuring the puncture use of the puncture device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the front view of the laparoscopic puncture device.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the side view of the puncture sheath in the laparoscopic puncture device.

[0016] Figure 3 It is a cross-sectional view of the front view of the puncture sheath in the laparoscopic puncture device.

[0017] Figure 4 It is a cross-sectional view of the top view of the puncture sheath in the laparoscopic puncture device.

[0018] Figure 5 Laparoscopic trocar Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1, annular block; 2, push plate; 3, puncture needle rod; 4, puncture needle; 5, puncture sheath; 6, protective cover; 7, slide groove; 8, limit groove; 9, limit block; 10, sliding block; 11, fixing groove; 12, spring; 13, limit ring; 14, buffer pad; 15, connecting rod; 16, threaded connecting ring; 17, positioning groove; 18, positioning block. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 In the utility model, the laparoscopic puncture device comprises an annular block 1, a push plate 2 is provided on the right side of the annular block 1, a puncture sheath 5 is fixedly connected to the left side of the annular block 1, a puncture needle 4 is slidably connected to the inner ring of the puncture sheath 5, a puncture needle rod 3 is fixedly connected to the right side of the puncture needle 4, a fixed groove 11 is provided on the outer surface of the puncture needle rod 3, a slide groove 7 is provided on the inner ring of the annular block 1, a spring 12 is fixedly connected to the inner top wall of the slide groove 7, a sliding block 10 is fixedly connected to the bottom end of the spring 12, the bottom end of the sliding block 10 extends to the inside of the fixed groove 11, and the outer surface of the sliding block 10 is in close contact with the inner wall of the fixed groove 11.

[0024] A threaded connection ring 16 is fixedly connected to the left side of the annular block 1, and a protective cover 6 is threadedly connected to the inner ring of the threaded connection ring 16. The protective cover 6 is located outside the puncture sheath 5. A plurality of connecting rods 15 are fixedly connected to the left side of the push plate 2. A buffer pad 14 is provided on the left side of the push plate 2. The left end of each connecting rod 15 is fixedly connected to the right side of the buffer pad 14. Through the setting of the threaded connection ring 16, the protective cover 6 can be installed, which will protect the outside of the puncture sheath 5 and the puncture needle 4, and the connecting rod 15 can be connected to the buffer pad 14.

[0025] The right side surface of the annular block 1 is fixedly connected to the limiting ring 13, and the left side surface of the buffer pad 14 contacts the right side surface of the limiting ring 13. The inner side wall of the slide groove 7 is provided with two limiting grooves 8, and the inner walls of the two limiting grooves 8 are slidably connected to the limiting blocks 9. The side surfaces of the two limiting blocks 9 close to each other are fixedly connected to the outer surface of the sliding block 10. The inner ring of the puncture sheath 5 is provided with two positioning grooves 17, and the inner walls of the two positioning grooves 17 are slidably connected to the positioning blocks 18. The side surfaces of the two positioning blocks 18 close to each other are fixedly connected to the outer surface of the puncture needle 4. The limiting ring 13 and the limiting groove 8 can be used to limit the sliding block 10 when it moves to prevent the sliding block 10 from falling off. The positioning groove 17 and the positioning block 18 can be used to position and guide the puncture needle 4 when it is installed inside the puncture sheath 5.

[0026] The working principle of the utility model is as follows: first, the push plate 2 is taken, and one end of the puncture needle 4 is inserted into the interior of the puncture sheath shell 5, and at the same time, the positioning block 18 is made to slide inside the positioning groove 17, and then the push plate 2 is continued to be pushed, so that the puncture needle rod 3 and the puncture needle 4 can continue to slide inside the puncture sheath shell 5, until the puncture needle rod 3 pushes the sliding block 10, so that the sliding block 10 can be stored inside the sliding groove 7, and then the puncture needle rod 3 will continue to move, and after the fixed groove 11 is located below the sliding block 10, the elastic force of the spring 12 will drive the sliding block 10 to be inserted into the interior of the fixed groove 11, and the puncture needle rod 3 can be locked and fixed, so that the puncture needle rod 3 can be more firmly inside the puncture sheath shell 5.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Laparoscopic puncture device, characterized in that: The invention comprises an annular block (1), a push plate (2) is provided on the right side of the annular block (1), a puncture sheath (5) is fixedly connected to the left side of the annular block (1), a puncture needle (4) is slidably connected to the inner ring of the puncture sheath (5), a puncture needle rod (3) is fixedly connected to the right side of the puncture needle (4), a fixing groove (11) is provided on the outer surface of the puncture needle rod (3), a sliding groove (7) is provided on the inner ring of the annular block (1), a spring (12) is fixedly connected to the inner top wall of the sliding groove (7), a sliding block (10) is fixedly connected to the bottom end of the spring (12), the bottom end of the sliding block (10) extends to the inside of the fixing groove (11), and the outer surface of the sliding block (10) is in close contact with the inner wall of the fixing groove (11).

2. The laparoscopic puncture device according to claim 1, characterized in that: A threaded connection ring (16) is fixedly connected to the left side of the annular block (1), and a protective cover (6) is threadedly connected to the inner ring of the threaded connection ring (16), and the protective cover (6) is located outside the puncture sheath (5).

3. The laparoscopic puncture device according to claim 1, characterized in that: A plurality of connecting rods (15) are fixedly connected to the left side of the push plate (2), a buffer pad (14) is provided on the left side of the push plate (2), and the left end of each connecting rod (15) is fixedly connected to the right side of the buffer pad (14).

4. The laparoscopic puncture device according to claim 3, characterized in that: The right side surface of the annular block (1) is fixedly connected to a limiting ring (13), and the left side surface of the buffer pad (14) is in contact with the right side surface of the limiting ring (13).

5. The laparoscopic puncture device according to claim 1, characterized in that: The inner wall of the slide groove (7) is provided with two limit grooves (8), the inner walls of the two limit grooves (8) are slidably connected to the limit blocks (9), and the side surfaces of the two limit blocks (9) close to each other are fixedly connected to the outer surface of the sliding block (10).

6. The laparoscopic puncture device according to claim 1, characterized in that: The inner ring of the puncture sheath (5) is provided with two positioning grooves (17), the inner walls of the two positioning grooves (17) are slidably connected with positioning blocks (18), and the side surfaces of the two positioning blocks (18) close to each other are fixedly connected to the outer surface of the puncture needle (4).

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