Abdominal cavity puncture device for gastrointestinal surgery

Abstract

The utility model discloses an abdominal cavity puncture device for gastrointestinal surgery, which comprises a cannula, one end of the cannula is communicated with a puncture head, one end of the puncture head far away from the cannula is communicated with a puncture needle for penetrating into an abdominal cavity, and the puncture needle, the puncture head and the cannula are integrally formed by injection molding. The outer wall of the puncture needle is provided with friction lines for improving the friction force with the abdominal cavity; the connecting sleeve is in threaded connection with the casing pipe, the end, close to the casing pipe, of the connecting sleeve is in external thread design, the inner wall of the upper end of the connecting sleeve is in internal thread design, and the connecting sleeve is in threaded connection with the casing pipe. When the abdominal cavity puncture device for the gastrointestinal surgery department is used, the needle core serves as a plugging needle of a puncture needle, the connecting disc and the needle core are connected through friction force, at the moment, only the grab handle needs to be pulled, the grab handle moves backwards, the needle core is pulled out of the puncture needle and separated from the sleeve, and subsequent connection of other pipelines, abdominal cavity hydrops pumping and carbon dioxide pumping are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of abdominal puncture medical instruments for gastrointestinal surgery, in particular to an abdominal puncture device for gastrointestinal surgery. Background Art

[0002] Abdominal puncture is a technique to extract abdominal fluid by puncturing the peritoneal cavity directly from the anterior abdominal wall with a puncture needle or catheter to assist in the diagnosis and treatment of diseases. The abdominal puncture needle is used in laparoscopic surgery and is one of the important instruments in laparoscopic surgery. It consists of a needle core and a cannula sheath. It is generally disposable during use to effectively avoid cross-infection.

[0003] The utility model relates to the technical field of abdominal medical instruments for gastrointestinal surgery, specifically an abdominal puncture device (CN219374852U). The utility model belongs to the technical field of medical instruments, specifically an abdominal puncture device, including a sealing cap, a puncture core, and a fluid absorption mechanism. The upper end surface of the sealing cap is embedded with the fluid absorption mechanism, and the puncture core is arranged at the lower part of the sealing cap, and also includes a puncture tube that is convenient for connecting external operating tools and convenient for adjusting the position. The abdominal puncture device of the utility model, through the setting of segmented rotation of the shell, can change the connection direction when the pipelines in multiple directions are connected, so as to avoid the influence of the pipeline when performing laparoscopic surgery; further, the setting of the micro-electromagnetic valve can be used to make it possible to be timely opened and closed when controlling various gas-liquid conveying media to avoid low control accuracy and the inability to quickly control multiple pipelines; the soft cone sleeve can be used in combination with the fluid accumulating bag to absorb the residual liquid at the puncture site, so as to avoid soaking the puncture site to cause suppuration and affect postoperative recovery. However, when using it, when extracting ascites and carbon dioxide, it is necessary to connect other syringes for negative pressure suction, and medical staff are required to prepare this component. Moreover, when extracting the pillow core, people usually peel it off and pull it out manually, which requires medical staff and their professional operation, causing certain troubles to the medical staff.

[0004] To this end, we propose a peritoneal puncture device for gastrointestinal surgery. Utility Model Content

[0005] The purpose of the utility model is to provide an abdominal puncture device for gastrointestinal surgery to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a abdominal puncture device for gastrointestinal surgery, comprising:

[0007] A cannula, one end of which is connected to a puncture head, and one end of which is away from the cannula is connected to a puncture needle for abdominal cavity penetration, and the puncture needle, the puncture head and the cannula are integrally formed by injection molding, and the outer wall of the puncture needle is provided with friction patterns to increase friction with the abdominal cavity;

[0008] The connecting sleeve is threadedly connected to the sleeve, the end of the connecting sleeve close to the sleeve is designed with external threads, and the inner wall of the upper end of the connecting sleeve is designed with internal threads, and the connecting sleeve and the sleeve are threadedly connected.

[0009] As a further solution of the utility model: the inner wall of the sleeve is sleeved with a needle core, and the sleeve is inserted with a connector along the upper part of the needle core.

[0010] As a further solution of the utility model: the sleeve is provided with an inner limit convex matching the size of the needle core along the lower end of the needle core, and the inner limit convex and the needle core are in interference connection.

[0011] As a further solution of the utility model: the outer wall of the connector is fitted with a sealing ring for sealing protection, and the connector is interference-connected with the inner wall of the sleeve through the sealing ring.

[0012] As a further solution of the utility model: a connecting disk is fixed to one end of the connector close to the sealing ring, and an interference fit connection is formed between the connecting disk and the sealing ring.

[0013] As a further solution of the utility model: a handle is fixed to one end of the connector away from the connecting disk, and the outer diameter of the handle is smaller than the inner diameter of the connecting sleeve.

[0014] As a further solution of the utility model: the tap is threadedly connected to the connecting sleeve, one end of the tap close to the sleeve is integrally injection-molded with a matching joint, and the outer wall of the matching joint is designed with external threads.

[0015] As a further solution of the utility model: the tap is connected to the connecting sleeve or sleeve through a matching joint, an external pipe is integrally injection-molded on the upper end of the tap, and an outlet joint for receiving pure air is opened on the middle outer wall of the tap.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] When the abdominal puncture device for gastrointestinal surgery is used, the needle core is used as a blocking needle of the puncture needle, and the connecting disk is connected to the needle core by friction. At this time, it is only necessary to pull the handle and move the handle backward to extract the needle core from the puncture needle and separate it from the sleeve, so as to facilitate subsequent access to other pipelines to drain abdominal water and carbon dioxide, thereby bringing convenience to medical staff. In the sealing process, the sealing ring ensures the airtightness in the sleeve, and its rubber material also ensures that the connector is stably squeezed in, thereby ensuring the consistency of the overall structure. In the sealing process, it also meets the requirements for access to the connecting sleeve and the tap, thereby improving the adaptability of the overall structure.

[0018] The connecting sleeve and the matching joint are both connected to the sleeve by threaded connection to perform sampling operations for ascites. When extracting carbon dioxide, it is necessary to use it in conjunction with the air outlet joint on the tap to meet the operational requirements of abdominal puncture operations. The connecting sleeve and the matching joint can also be adaptably connected to facilitate long-term nursing and medical needs for ascites and reduce the possibility of repeated puncture operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the connector of the utility model.

[0023] In the figure: 1, sleeve; 11, inner limit convex; 2, puncture head; 3, puncture needle; 31, friction pattern; 4, connecting sleeve; 41, external thread connector; 5, tap; 51, external tube; 52, matching connector; 53, air outlet connector; 6, needle core; 7, sealing ring; 8, connector; 81, connecting plate; 82, handle. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4The utility model provides a technical solution: a abdominal puncture device for gastrointestinal surgery, comprising:

[0026] A cannula 1, one end of the cannula 1 is connected to a puncture head 2, and the end of the puncture head 2 away from the cannula 1 is connected to a puncture needle 3 for puncturing the abdominal cavity, and the puncture needle 3, the puncture head 2 and the cannula 1 are integrally formed by injection molding, and the outer wall of the puncture needle 3 is provided with a friction pattern 31 to increase friction with the abdominal cavity;

[0027] The connecting sleeve 4 is threadedly connected to the sleeve 1, and the end of the connecting sleeve 4 close to the sleeve 1 is designed with an external thread, and the inner wall of the upper end of the connecting sleeve 4 is designed with an internal thread, and the connecting sleeve 4 and the sleeve 1 are threadedly connected, the inner wall of the sleeve 1 is sleeved with a needle core 6, and the sleeve 1 is plugged with a connector 8 along the upper part of the needle core 6, and the sleeve 1 is provided with an inner limiting protrusion 11 that matches the size of the needle core 6 along the lower end of the needle core 6, and the inner limiting protrusion 11 and the needle core 6 are interference connected, the outer wall of the connector 8 is fitted with a sealing ring 7 for sealing protection, and the connector 8 is interference connected with the inner wall of the sleeve 1 through the sealing ring 7, a connecting disk 81 is fixed at the end of the connector 8 close to the sealing ring 7, and the connecting disk 81 and the sealing ring 7 are interference connected, a handle 82 is fixed at the end of the connector 8 away from the connecting disk 81, and the outer diameter of the handle 82 is smaller than the inner diameter of the connecting sleeve 4, and the needle core 6 serves as a blocking needle of the puncture needle 3 When in use, it is only necessary to sleeve the center of the connecting disk 81 at the end of the connector 8 on the cylinder at the rear end of the needle core 6, and the two are connected by interference, and the connecting disk 81 and the needle core 6 are connected by friction. At this time, it is only necessary to pull the handle 82, and the handle 82 moves backward to extract the needle core 6 from the puncture needle 3 and separate it from the sleeve 1, which is convenient for subsequent access to other pipelines to drain abdominal water and carbon dioxide, bringing convenience to medical staff. When not in use, it is only necessary to insert the needle core 6 into the sleeve 1, align the end of the needle core 6 with the inner limit convex 11, and the inner limit convex 11 fixes the needle core 6 to ensure that the needle core 6 is effectively fixed. At the same time, during the sealing process, the sealing ring 7 ensures the airtightness in the sleeve 1, and its rubber material also ensures that the connector 8 is stably squeezed in, ensuring the consistency of the overall structure, and during the blocking process, it also meets the requirements of connecting the connecting sleeve 4 and the tap 5, improving the adaptability of the overall structure.

[0028] The tap 5 is threadedly connected to the connecting sleeve 4. One end of the tap 5 close to the sleeve 4 is integrally molded with a fitting 52, and the outer wall of the fitting 52 is designed with an external thread. The tap 5 is connected to the connecting sleeve 4 or the sleeve 1 through the fitting 52. The upper end of the tap 5 is integrally molded with an external pipe 51, and the middle outer wall of the tap 5 is provided with an outlet connector 53 for accessing pure air. The connecting sleeve 4 and the fitting 52 are both connected to the sleeve 1 in a threaded manner. When pumping abdominal effusion, the connecting sleeve 4 can be connected to the piston rod to collect samples of the abdominal effusion. When pumping carbon dioxide, it is necessary to cooperate with the outlet connector 53 on the tap 5 to meet the operational requirements of abdominal puncture. The connecting sleeve 4 and the fitting 52 can also be adaptably connected, which is convenient for long-term nursing and medical needs of abdominal effusion and reduces the possibility of repeated puncture operations.

[0029] Working principle: For this type of abdominal puncture device used for gastrointestinal surgery, firstly, the puncture needle 3 is inserted into the patient's abdominal cavity through a puncture operation. The friction pattern 31 increases the friction between the puncture needle 3 and the abdominal cavity. At this time, when using it, it is only necessary to sleeve the center of the connecting disk 81 at the end of the connector 8 on the cylinder at the rear end of the needle core 6. The two are interference connected, and the connecting disk 81 and the needle core 6 are connected by friction. At this time, it is only necessary to pull the handle 82, and the handle 82 moves backward to pull the needle core 6 out of the puncture needle 3 and separate it from the sleeve 1. The connecting sleeve 4 is connected to the sleeve 1. The connecting sleeve 4 can be connected to the piston rod to collect samples of peritoneal effusion. Then, when extracting carbon dioxide, it is necessary to cooperate with the outlet connector 53 on the tap 5. The tap 5 is threadedly connected to the sleeve 1, and the pipeline of the negative pressure device is connected to the outlet connector 53 through the negative pressure device to extract carbon dioxide. Finally, when it is not in use, the needle core 6 only needs to be inserted into the sleeve 1, and the end of the needle core 6 is aligned with the inner limit convex 11. The inner limit convex 11 fixes the needle core 6 to ensure that the needle core 6 is effectively fixed.

[0030] 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.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A peritoneal puncture device for gastrointestinal surgery, characterized in that: include: A cannula (1), one end of the cannula (1) being connected to a puncture head (2), an end of the puncture head (2) remote from the cannula (1) being connected to a puncture needle (3) for puncturing the abdominal cavity, the puncture needle (3), the puncture head (2) and the cannula (1) being integrally formed by injection molding, and the outer wall of the puncture needle (3) being provided with a friction pattern (31) for increasing friction with the abdominal cavity; A connecting sleeve (4) is threadedly connected to the sleeve (1); the end of the connecting sleeve (4) close to the sleeve (1) is designed with an external thread, and the inner wall of the upper end of the connecting sleeve (4) is designed with an internal thread; the connecting sleeve (4) and the sleeve (1) are threadedly connected; the inner wall of the sleeve (1) is sleeved with a needle core (6), and the sleeve (1) is plugged with a connector (8) along the upper part of the needle core (6); the sleeve (1) is provided with an inner limit protrusion (11) matching the size of the needle core (6) along the lower end of the needle core (6), and the inner limit protrusion (11) and the needle core (6) are in interference connection; the outer wall of the connector (8) is fitted with a sealing ring (7) for sealing protection, and the connector (8) is in interference connection with the inner wall of the sleeve (1) through the sealing ring (7), and the connector A connecting disk (81) is fixed to one end of the head (8) close to the sealing ring (7), and the connecting disk (81) and the sealing ring (7) are in interference connection. A handle (82) is fixed to one end of the connecting head (8) away from the connecting disk (81), and the outer diameter of the handle (82) is smaller than the inner diameter of the connecting sleeve (4). The tap (5) is threadedly connected to the connecting sleeve (4). A matching joint (52) is integrally injection-molded at one end of the tap (5) close to the sleeve (4), and the outer wall of the matching joint (52) is designed with an external thread. The tap (5) is connected to the connecting sleeve (4) or the sleeve (1) via the matching joint (52). An external pipe (51) is integrally injection-molded at the upper end of the tap (5), and an air outlet joint (53) for receiving pure air is provided on the middle outer wall of the tap (5).

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