WO2018141037A1 - Arrangement incorporated into a conical laparoscopic seal - Google Patents

Abstract

Proposed is a medical apparatus which pertains to the field of surgical devices; the prior art anticipates a device in the form of an expandable torus which surrounds the perimeter of the trocar, the expandable torus having an air inlet and outlet which can be sealed by a valve or even by mechanical obstruction using clamps; said expandable torus inflates next to the enlarged surgical incision but surrounding the trocar such as to seal the egress of insufflation gas; the major disadvantage of this model is its high production cost resulting from its design, which requires sophisticated workmanship and high-precision equipment in order for it to be inflatable; in order to solve this problem, the subject matter of the present invention has been developed, comprising a resilient structure (2) having a truncated cone geometry, the outside diameter of which decreases from top to bottom, and having on its central axis a longitudinal tunnel (3) of circular cross section, wherein the upper portion of said structure is provided with a flange (4) close to the upper face, which is followed by a plurality of circular fins (5), the diameter of which decreases from top to bottom.

Description

 "Arrangement introduced in a conical sealer for laparoscopy"

 Application Field

 [001] The present utility model patent belongs to the field of surgical devices and its object is a conical seal for sealing surgical sections subjected to the insertion of surgical instruments, in particular the trocar in laparoscopic surgeries. After obtaining the pneumoperitoneum and the main function of this conical seal is to prevent the gas injected into the abdominal cavity from being expelled into the environment.

 The tapered seal involves the trocar inserted into surgical cuts and which injects gas into the abdominal cavity during laparoscopic surgical procedures, the outer circumference of which is molded to the perimeter of the surgical cut to seal any interstitium that may cause the exit. of gas that was injected into the patient's abdominal cavity so that the surgeon can perform the surgical procedure.

 Therefore, the patent application in question has a surgical device specially designed and developed for great practicality and which has great advantages both in its use and its manufacture.

 Disposition History

 Laparoscopy is where the doctor makes a small incision in the region to be examined or treated, through which he introduces the laparoscope (apparatus through which he will view and treat the area covered), which consists of a thin tube of fibers. through which you can visualize the internal organs and make diagnostic or therapeutic interventions.

[005] Other small incisions may be necessary to introduce the surgical instruments used in videolaparoscopy.

 [006] This technique has the advantage of being minimally invasive and thus result in less surgical trauma, less intraoperative bleeding, less postoperative pain, faster postoperative recovery and earlier return to usual activities and work. , besides smaller scars.

 More specifically in laparoscopic surgery pneumoperitoneum is made for visualization of the organs. The pneumoperitoneum procedure consists of applying a needle through an incision in the abdomen, connecting said needle to a deliever who injects the gas necessary for the expansion of the cavity.

 [008] After obtaining the pneumoperitoneum, the trocar is positioned within the cavity, being juxtaposed to the walls of the incision preventing the outflow of the gas.

 When enlargement of the surgical incision is required, the expansion gas may escape, in which case the surgeon is obliged to prevent the escape of the gases by any means.

 [010] A mechanical sealing device specifically designed to prevent outflow of expansion gas in such cases is known in the art.

[011] Said sealing equipment is disclosed in document BR 10 2014 017181 9 A2 entitled "INFLATABLE RING BALLOON FOR LAPAROSCOPIC SURGERIES"; which is about an annular balloon that has the form of an expandable torus, which surrounds the perimeter of the trocar, understood as a tube for insertion of gas into the pneumoperitoneal abdominal cavity, said annular balloon has an air inlet and outlet that can be sealed by valve or even by mechanical obstruction of forceps. The annular balloon inflates near the enlarged surgical incision, but, surrounding the trocar, to seal out the expansion gas.

 Poor points of the prior art

 [012] Although it has great advantages in lapa rosco pias surgeries, the major drawback of this inflatable ring balloon is its high cost.

 [013] This substantial cost is due to its design, which as an inflatable device requires an exquisite multi-step manufacturing process that utilizes high precision equipment.

 Layout Summary

 [014] Thinking of providing the hospital sector with an affordable device to prevent pneumoperitoneum gas leakage in laparoscopic surgical procedures, the inventor with well-known industry knowledge has created and developed the subject-matter of this patent, "PROVISION INTRODUCED IN LAPAROSCOPY CONICAL SEAL ", reveals a surgical seal, which is wrapped around the trocar tubular stem and inserted into the surgical cut, seals this surgical cut so that the gas injected into the patient's abdominal cavity is not ejected into the environment and compromises the necessary expansion of the abdominal cavity, necessary for specific surgical procedures.

[015] The use of the laparoscopic conical seal is greatly simplified and avoids the loss of pneumoperitoneum in cases of enlargement of the abdominal incision.

 [016] Wrapping the trocar with the laparoscopic conical seal and placing it close to the inner hole or wall thickness will prevent gas leakage, thus allowing further surgery without further difficulties.

 [017] The surgical seal, in presentation, compared to the state-of-the-art device (annular balloon) has several functional improvements and great advantages, especially regarding the production process.

 Fully developed in surgical polymer (silicone), the object of this application, conical sealer for laparoscopy, has a conical shape that allows the patient to enter the tissues (skin, muscle and fat layers) until they find their physical limit, thus stopping. the hole that was made to perform the surgery.

 [019] In the center of the piece, a hole of the diameter of the trocar has the function of allowing its passage without allowing the passage of gas during the surgical procedure.

 [020] To improve sealing efficiency, flexible fins incorporated into the seal and also accompanying the conical shape, surround the entire surface, preventing the passage of gases, since organic fabrics do not have dimensional regularity, rigidity and texture.

[021] Four ribs running along the seal body allow the fin structure to remain firm, with minimal deformation that is necessary to adapt to the patient's tissue layers and promoting correct sealing.

 Unlike the state-of-the-art device (annular balloon), the surgical seal, now being presented, need not be inflated into the patient's orifice, which facilitates its operation.

 [023] The state-of-the-art object (ring balloon) needs several steps in its production process which increases production time such as injection, ultrasound welding and also needs great care to avoid burrs , which can impair the gas sealing process during surgery.

 [024] The tapered surgical seal can be produced in just one injection process, which ensures dimensional accuracy, scalability and minimal loss.

 [025] It is thus to be understood that the conical surgical sealing device in question is extremely simple in its constructivity and is therefore easily practicable, but with excellent practical and functional results.

[026] Conceived with innovative design results in a harmonious assembly, peculiar and characteristic aspect above, wherein, besides the constructive aspect, the product ^s stands out for its versatility and ease of use.

 Brief Description of Layout Drawings

In addition to the present description in order to gain a better understanding of the features of the present invention and in accordance with a preferred practical embodiment thereof, accompanying the accompanying description is a set of which, by way of example, although not limiting, represented the following:

 [028] FIG. 1 - Shows a top perspective view of the conical seal for laparoscopy in question.

 [029] FIG. 2 - Shows a perspective view of the infero-iateric conical seal for laparoscopy, in question.

 [030] FIG. 3 - Shows a side view of the conical seal for laparoscopy, in question.

 [031] FIG. 4 - Shows a bottom view of the conical seal for laparoscopy, in question.

 [032] FIG. 5 - Shows a top view of the conical seal for laparoscopy, in question.

 [033] FIG. 6 - Shows a sectional view of the conical seal for laparoscopy, in question.

 [034] FIG. 7 - Shows an illustrative view of a laparoscopic surgery using the surgical conical seal for gas sealing inserted into the abdominal cavity.

 [035] FIG. 8 - Shows a detailed view of the surgical conical seal for gas sealing inserted into the abdominal cavity in a laparoscopic surgery.

 Detailed Description of Incorporation

[036] As illustrated by the above figures, the "LAPAROSCOPIC CONNECTED SEAL ARRANGEMENT" designates a surgical seal that surrounds the cannula or trocar for insertion of carbon dioxide gas into the abdominal cavity, when necessary. perform laparoscopic surgeries. [037] More specifically, the taper seal for iaparoscopy (1) is made from a resilient surgical polymer (silicone) structure with a truncated geometry, the outer diameter of which is reduced from top to bottom and with a tunnel (3). ) longitudinal center of circular section.

 [038] At its upper portion there is a flange (4) flush with the upper face, which is followed by multiple circular fins (5), the diameters of which gradually decrease from top to bottom, accompanying the reduction in the diameter of the structure (2). ) trunked.

 [039] In the outer wall, longitudinally distributed ribs (6) are provided for regularly.

 [040] As can be seen, it is a very useful surgical device that brings substantial advantages in the procedures by laparoscopy technique, besides allowing a low cost manufacturing compared to the state of the art product.

 Admittedly, when the present utility model is put into practice, modifications may be made with regard to certain details of construction and shape, without departing from the fundamental principles which are clearly substantiated in the claim framework. Thus, it is understood that the terminology employed was for the purpose of description rather than limitation.

Claims

 CLAIM:  1- "Arrangement introduced in a conical sealer for laparoscopy" is a surgical device whose state of the art anticipates a device in the form of an expandable toroid that surrounds the trocar perimeter, said expandable toroid having an air inlet and outlet that can be sealed by valve or even by mechanical clamping of tweezers, thus in an innovative conformation the object of the present patent application is characterized by being made of a resilient structure (2) of frusto-conical geometry, whose outer diameter is reduced from top to bottom and on its central axis there is a longitudinal tunnel (3) of circular section, and in its upper portion there is a flange (4) flush with the upper face, which is followed by multiple circular fins (5), whose diameters are decreasing from top to bottom, following the reduction in the diameter of the frusto-conical structure (2) and on the outer wall, longitudinal ribs are provided (6) evenly distributed.