SURGICAL STAPLER ADAPTABLE DEVICE, USEFUL FOR SLEEVE GASTRECTOMY OR TOTAL GASTRECTOMY SURGERIES

Abstract

A device that may be used as a surgical stapler comprises five rows of staples towards the segment one wishes to suture and one row towards the segment that is extracted. In a back area it comprises two sections separated in the middle for a knife to pass through. At least one of the sections presents a curve-shaped end to adapt it to the stapler.

Claims

1. A device adaptable to a surgical stapler CHARACTERIZED in that it consists of five rows of staples (1) towards the segment one wishes to suture and one row (2) towards the segment that is extracted, and in the back area (6) it presents two sections separated in the middle for a knife to pass through and where at least one of these sections presents a curve-shaped end to adapt it to the stapler.

2. A device adaptable to a surgical stapler according to claim 1 CHARACTERIZED in that the device presents a width of 10 mm and a variable length of 4, 6 or 8 cm.

Description

DESCRIPTION OF THE INVENTION

[0012] The current technology corresponds to a device adaptable to surgical staplers, useful for gastric sleeve surgeries or total gastrectomy. This device, of the stapler cartridge type, is equipped with five rows of staples towards the segment one wishes to suture and one row towards the segment that is extracted. This layout of the rows of staples permits a union of tissues with a high safety profile, which advantageously reduces the complications in procedures that involve sutures of only one end of a segment of the digestive system, such as, for example, the filtrations.

[0013] This cartridge of staples, as it has five suture lines on the side of the remaining stomach, permits, on the one hand, a reduction in the bleeding while at the same time contributes greater mechanical support to the suture, which especially in the first days, must withstand situations of maximum stress due to the nausea and/or vomiting after the operation. This reinforcement, consisting of a greater number of rows of staples, provides greater strength which translates into support for the first lines of staples that might fail. On the other hand, the segment of stomach that is extracted must only be sutured by a line of staples, which is not very relevant as it is extracted and even its intraoperative rupture would not cause negative consequences for the patient. With regard to the bleeding, the mechanical reinforcement functions in a similar manner because having a longer segment of staples there is a greater possibility of closing smaller vessels independently of their tortuosity.

[0014] For a better understanding of the technology, FIGS. 1 and 2 are taken as reference, where an upper and lower view of the cartridge is shown, respectively. In (1) the five rows of staples can be appreciated and in (2) a row of staples; (3) corresponds to the staple pushers which, depending on the device, can go in the cartridge or in the stapler that shoots them; (4) is a sliding actuator that, also depending on the device, can go in the cartridge or in the stapler that shoots them, which has the function of sliding to enter into contact with the staple pushers to start to apply the staples (5) sequentially; and (6) corresponds to the rear end made up of two sections, separated in the middle to allow a knife to pass through, in charge of making the incision. At least one section presents a curved end to permit the adaptation of the cartridge to a traditional stapler. The width of the cartridge is 10 mm and the length may vary between 4, 6 or 8 cm to adapt easily to any stapler.

[0015] FIG. 3 shows an enlarged view of the staple pushers present in the cartridge, which permit the application of the staple and are associated to the slots of the cartridge. They are placed in contact sequentially and depending on their location in the cartridge can present shorter or longer sections, the latter for the case of the area that shoots five lines of cartridges. These pushers allow three different sizes of staples to be pushed, where the highest are the two lines to the left of the cut, that is equivalent to 4 mm high staples, then the two following of 3.5 mm and the ends that are on both sides of the incision that correspond to staples of 3 mm. The size of the staples may vary according to the thickness of the tissue to be sutured.

[0016] FIG. 4 presents a sketch of the conventional stapler, to which the cartridge of staples (7) is adapted with the arrangement of 5:1 lines of staples, that advantageously avoids the filtration and bleeding of the cut line in surgery. Furthermore, the location of the knife is shown in (8), in (9) the support of the knife and in (10) a mobility bar an axial movement control bar that transmits the stapler's longitudinal drive forces for the control of the axial movement of the head.

EXAMPLE OF APPLICATION

[0017] The cartridge of staples was adapted to the staples most used universally (Endo GIA® and Echelon®) to verify its functioning on live animal tissue.

[0018] As an example of the operation carried out with both staplers conditioned with the cartridge of staples, in FIG. 2 we can see the cartridge of staples, where in its front part the staple pushers (3) have already been applied, while in the back the low section of the staples (5) that had already been applied is shown and in the upper section the pushers that were still in their original position.

[0019] It can be verified in situ that when five lines of staples are applied, an increase in the mechanical resistance and a significantly smaller bleeding of the cut line were achieved in both staplers.

[0020] The increase in the suture's resistance was verified when attempting to separate the joined tissue with a tension device that included weight measurement. The significant reduction of the bleeding was observed in a comparative study with the usual stapler, where this layout of 5:1 did not show any bleeding whatsoever on the cut line after its use. The above meant a significant improvement in the use of this device for this type of surgery.