MXPA06008681A - Infection-preventing gastrostomy catheter kit for gastrostomy - Google Patents

Abstract

An infection-preventing gastrostomy catheter kit to be used in the gastrostomy, which can pass an intragastric retainer of a catheter easily and reliably through an infection-preventing sheath by an easy maneuver, and which can reduce the diameter of the infection-preventing sheath. The catheter kit comprises:a gastrostomy catheter (20) including a flexible, hollow PEG tube (21) reinforced with filaments (24), an deformable intragastric retainer (23) positioned at the trailing end of the PEG tube (21), and a tapered member (22) positioned at the leading end of the PEG tube (21) for retaining the leading end portion (40a) of a guide wire (40) inserted from a leading end hole (22a) thereof;and an infection-preventing sheath (1) including a flexible, hollow tubular body (2), and a socket member having a socket (4) positioned at the trailing end of the tubular body (2) for retaining the intragastric retainer (23), and pins (5), thereby removably sheathing the gastrostomy catheter (20). The gastrostomy catheter (20) may be provided with a housing sheath (60) for deforming and housing the intragastric retainer (23).

Description

GASTROSTOMIC CATASTRO GASTROSTOMY EQUIPMENT THAT PREVENTS INFECTIONS FIELD OF THE INVENTION The present invention relates to a gastrostomy catheter equipment that prevents infections, for gastrostomy, in a manner that prevents infection by the stoma.

BACKGROUND OF THE INVENTION A gastrostomy equipment that prevents infection can retain a catheter without infecting a stoma when a gastrostomy operation is performed through an endoscope. This gastrostomy equipment that prevents infections includes: a catheter that has a stop at its rear end, and fixed through the abdominal wall between the stomach cavity and the outside of the body; an upper tube that is adapted to be inserted to introduce the catheter into the cavity of the stomach; and a soft cover placed in the hole of the upper tube. The outer circumferential wall of the front end of the upper tube on the inserted side is lined by folding back the rear end of the soft cover. Another terminal end of the soft shell is extruded from the root end of the top tube (with reference to patent publication 1, for example). REF .: 174709 [Patent Publication 1] JP-A-2003-275324 (page 1, figure 1 to figure 13) BRIEF DESCRIPTION OF THE INVENTION According to a gastrostomy equipment that avoids infections, of the prior art, the catheter and the butt experience a high resistance when they pass through the upper tube. On the other hand, the patient must accept the thickness of the upper tube that is inserted. As a result, the results of the patient's pain are not sufficiently relieved. The invention has been conceived to solve the problems described in the foregoing and has as an objective to provide a gastrostomy catheter equipment that avoids infections to be used in gastrostomy, which can pass through an intragastric retainer of a catheter with ease and Reliably through a lining to prevent infections by a simple maneuver and which can reduce the diameter of the lining that prevents infections. According to the invention, a liner gastrostomy catheter is provided which prevents infections comprising: a gastrostomy catheter including a flexible hollow tube reinforced with filaments, a deformable intragastric retainer positioned at the rear end of the tube and a member tapered that is positioned at the front end of the tube to retain the leading end portion of the guidewire inserted from the front end hole thereof; and an infection-preventing liner that includes a hollow, flexible tubular body and a receptacle member-positioned at the rear end of the tubular body to retain the intragastric retainer, to removably line the gastrostomy catheter. A ligation gastrostomy catheter kit that prevents infection is also provided, comprising: a gastrostomy catheter including a flexible hollow tube reinforced with filaments, a deformable intragastric retainer positioned at the rear end of the tube, a tapered member placed on the front end of the tube for retaining the leading end portion of a guidewire inserted from the front end hole thereof, and a housing liner for deforming and housing the intragastric retainer; and a liner to prevent infection including a hollow and flexible tubular body and a receptacle member positioned at the rear end of the tubular body to retain the intragastric retainer and thereby removably line the gastrostomy catheter. In this case, the infection prevention liner may further include a hook member positioned near the front end portion of its inner wall to engage the housing liner.

The housing liner can be made from a thin, hollow, flexible tubular body. further, the gastrostomy catheter is provided with filaments in its thick portion. In this case, the filaments may be placed generally parallel to the longitudinal direction of the thick portion of the gastrostomy catheter. On the other hand, the filaments may be buried generally parallel to the longitudinal direction of the thick portion of the gastrostomy catheter. In addition, the filaments may be buried at a predetermined spacing in the circumferential direction of the thick portion of the gastrostomy catheter. On the other hand, the filaments can be made of stainless steel wires. The filaments may have an outer diameter of about 0.2 mm. In addition, the intragastric retainer is foldable and deformable. The resistance to the passage at the moment in which the intragastric retainer passes through the lining that prevents infections and the invasion of the patient and a load of the doctor can be reduced by thinning the tubular body or a lining that prevents infections. In addition, the maneuver can be simplified to allow even a doctor with little experience to operate the gastrostomy system easily.

BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a perspective view of a liner to prevent infections, according to the embodiment 1 of the invention; Figure 2 is a perspective view of the gastrostomy catheter; Figures 3 (a) -3 (b) present section views and a side view of the essential portion of Figure 2; Figures 4 (a) -4 (c) represent diagrams to explain the steps for the views of Figure 2; figure 5 is a side view "of an essential portion of figure 4, figure 6 is a top plan view of figure 5, figure 7 is an explanatory view of an essential portion of figure 1; is a diagram for explaining the stages of a gastrostomy method according to the modality 1, Figure 9 is a diagram for explaining the stages of the gastrostomy method according to the modality 1, Figure 10 is a diagram for explaining the stages of the gastrostomy method according to the modality 1, Figure 11 is a diagram for explaining the stages of the gastrostomy method according to modality 1, Figure 12 is a diagram for explaining - the stages of the gastrostomy method according to the modality 1; Figure 13 is a diagram to explain the stages of the gastrostomy method according to the modality 1; Fig. 14 is a diagram for explaining the stages of the gastrostomy method according to mode 1; Figure 15 is a diagram to explain the stages of the gastrostomy method according to the modality 1; Figure 16 is a side elevation showing a gastrostomy catheter kit that prevents infection, according to mode 2 of the invention; Figure 17 is a diagram for explaining the steps of Figure 16; Figure 18 is a diagram for explaining the steps of Figure 16; and Figure 19 is a diagram for explaining the stages of a gastrostomy method according to mode 2.

BEST MODE FOR CARRYING OUT THE INVENTION [Mode 1] Figure 1 is a perspective view showing a gastrostomy catheter kit that prevents infection, to be used in a gastrostomy method that prevents infection (which will be referred to as "PEG" method) and Figure 2 is a perspective view showing a gastrostomy catheter (which will be referred to as a "PEG catheter"). A liner 1 which prevents infection removably covers the PEG catheter 20 (which will be described in detail) from its outer side and thus prevents the PEG catheter from being contaminated with bacteria in the buccal cavity, the pharynx or the pharynx. larynx. The liner 1 for preventing infection includes a hollow and thin flexible tubular body 2, which may also be referred to as a "flexible tubular member" or "flexible tube". A thin film 3 of the front end, which is cut at its front end, is fixed to the front end of the tubular body 2. A hollow receptacle 4 is placed at the rear end of the tubular body 2. The receptacle 4 has a generally truncated cone-shaped portion and a generally cylindrical portion which is directed to an end portion on the radially larger side of the truncated cone-shaped portion. The receptacle 4 is shaped to have its mouth of the radially smaller end portion adhered to the rear end of the tubular body 2 with a. adhesive or the like, or fused or molded integrally therewith; The opposite portions of the cylindrical portion of the receptacle 4 have bore holes 4a drilled into which bolts 5 are to be inserted. Here, the cylindrical portion may be constructed to line an intragastric retainer or may be constructed not to line it. The tubular body 2 is made of a strong and flexible material of polyvinyl chloride that is gas-tight, water-tight and does not shrink in the longitudinal direction. The tubular body 2 is preferably cylindrical but alternatively has a shape of a flattened section, such as an elliptical shape. The receptacle 4 is made of a hard material such as polycarbonate and the front end film 3 is made of a thin sheet of polyvinyl chloride or the like. The PEG 20 catheter is constructed by continuously integrating: a hollow and thin PEG tube 21; a tapered member 22 placed on the front end of the PEG tube 21, tapered generally tapering towards its front end and being provided with a hole 22a which is directed to the hollow interior of the PEG tube 21; and an intragastric retainer 23 placed at the rear end. The PEG tube 21 is made of a resilient material such as polyurethane. The tapered member 22 is made of a relatively hard material such as polypropylene and the intragastric retainer 23- is made of a flexible material such as polyurethane which has such an elasticity deformable by an external force and restored to its original shape when the external force disappears . The PEG tube 21 is provided, as shown in Figs. 3 (a) -3 (b) with a plurality of filaments 24 extending hardly in the longitudinal direction of a thick portion 21a. More specifically, the filaments 24 are distributed in a predetermined range along the circumferential direction of the thick portion 21a and generally parallel in the longitudinal direction. In this way, the extension of the PEG catheter 20 is suppressed when the PEG catheter 20 is pulled with a guide wire 40 retained in the tapered member 22. In this case, the filaments 24 need not be buried and fixed integrally with the thick portion 21a but may also be distributed along the surface of the thick portion 21a. The strands of the filaments 24 can also be stainless steel wires, for example, having an outer diameter of about 0.2 mm, so that they can be cut with scissors. The strands of the filaments 24 can also be cotton threads. As shown in Figs. 4 (a) -4 (c), the hole 22a, which is formed in the forward end of the tapered member 22 of the PEG catheter 20, has an elaborated diameter large enough to accept the portion 40a of a head formed at the front end of the guide wire 40, so that the guide wire 40 can be inserted from the hole 22a into the inside of the tapered member 22. This tapered member 22 is provided, on the inner side of its diametrically large end portion, with a stepped portion on which a connector 30 is placed. In this coupled portion, the tapered member 22 and the connector 30- are fixed by adhesion or welding. As shown in Figures 5 and Figure 6, the connector 30 is placed on the tapered member 22 and hollowed out to produce a cylindrical hole. The connector 30, by itself, has a generally cylindrical shape. At the front end of the connector 30 an integral retention member 31 with the connector 30 is produced. The retention member 31 extends obliquely in the axial direction of the front end of the connector 30 to form a slope 31a and turns in the middle part, parallel to the axial direction to form a flat top face 31b. In addition, a narrower first groove 32 is formed in the retaining member 31 which extends from the lower portion of the slope 31a to the vicinity of the central portion of the upper planar face 31b. On this upper planar face 31b of the retaining member 31 is also formed a second, wider groove 33 which is fused in the first groove 32 and has a width large enough to allow the head portion 40a of the guide wire 40 to pass through. its through. In said upper portion of the interior of the tapered member 22, in which the retaining member 31 is to be placed, a space 34 is formed, which is large enough to allow the head portion 40a of the guide wire 40 to pass through. Through it, as shown in Figure 4. The intragastric retainer 23 placed at the rear end of the PEG catheter 20 is constructed of four finger-shaped members, which are connected in a transverse manner at their front ends and in their The rear ends can be folded freely or folded and extended, with the bolts 25 making contact against the outer side of the root portion, as shown in Figure 2. As shown in Figure 7, for example, the bolts 5 are shaped in a bifurcated shape. When the bolts 5 are inserted into the holes 4a of the bearing, their two branches hold the surface of the PEG tube 21 of the PEG catheter 20. When the PEG catheter 20 is pulled in the direction of the tapered member 22, the pins 5 contact the outer side face of the root portion of the intragastric retainer 23 to prevent the PEG catheter 20 from moving in the direction of the limb 22. The length of the liner 1 which prevents infection, i.e. the total length of the tubular body 2 and the receptacle 4, is slightly greater than the length of the PEG catheter 20, ie the total length of the tapered member 22, the tube 21 PEG and the intragastric retainer 23. In addition, the internal diameter of the tubular body 2 is larger than the outer diameter of the PEG tube 21, but smaller than the diameter or the transverse width of the intragastric retainer 23. Depending on the material to be used for the intragastric retainer 23, the internal diameter of the tubular body 2 can be adapted to be larger than the diameter of the intragastric retainer 23. In any case, it is sufficient e that the PEG catheter 20 passes together with the intragastric retainer 23 (in the folded state or in the original form) through the tubular body 2 of the liner 1 which prevents infection. Here, jelly or other lubricant may be applied to the inner face of the tubular body 2. The actions with respect to modality 1 constructed in this way are described in the following. The mode of the modality to be described is termed as the "pull method". The PEG method is usually performed by an operator, an endoscopist doctor and one or two nurses. First of all, as shown in Figure 8, an endoscope 50 is inserted from the mouth 70 of a patient on its back, into the stomach 71 and air is introduced through the endoscope 50 into the interior of the stomach. and in this way place the wall of the stomach and the peritoneum in close contact with each other. Then, the portion to be sewn with a needle is determined and disinfected enough, and the neighborhood is locally anesthetized. Then, the skin of the portion to be sewn with a needle is cut about 1 cm and a liner needle 51 is inserted into the cut portion. This liner needle 51 is constituted by a circular outer cylinder 52 and a needle 53 having a sharp front end. The outer cylinder 52 is made hollow and the needle 53 protrudes slightly at its forward end from the rear end of the outer cylinder 52. The sharp front end of the needle 53 pierces within the abdominal wall, the peritoneum and the stomach wall to where the leading end portion of the outer cylinder 52 penetrates the interior of the abdominal wall, the peritoneum and the stomach wall. Then, as shown in Figure 9, the needle 53 is removed from the outer cylinder 52 while leaving the leading end portion of the outer cylinder 52 pierced from the abdominal wall to the stomach wall. In addition, the forward end of a metal cord clamp 50a for extracting tumors extends from the forward end of the endoscope 50 to the stomach 71. Then, the guide wire 40 having the portion Sphere-shaped head 40a at its front end is inserted from the outside through the outer cylinder 52 into the interior of the stomach 71, as shown in Figure 10. The leading end portion of the guide wire 40 is inserted into the stomach 71 and is clamped by the metallic cord clamp 50a to extract tumors and is pulled outwardly from the oral cavity until it is left unattached from the metal cord clamp 50a to remove tumors. At this time, the trailing end of the guide wire 40 is kept outside the outer cylinder 52. In addition, the PEG catheter 20 is inserted into the side of the tapered member 22 from the open side of the receptacle 4 of the liner 1 preventing infection, inside the tubular body 2 and is lined from the tapered member 22 of the PEG catheter 20 to the intragastric retainer 23 with liner 1 that prevents infections (with reference to figure 1). At the time of manufacture or preoperatively, the PEG catheter 20 can also be lined in advance with the liner 1 to prevent infection. In this manner, the forward end of the tapered member 22 is slightly withdrawn from the front end film 3 of the front end of the tubular body 2 to the outside, and the leading end of the guide wire 40 is withdrawn from the patient's oral cavity and is pulled from the hole 22 in the forward end of the member 22 tapered to the inside of the tapered member 22. The guide wire 40 is retained in its head portion 40a on the connector 30 of the tapered member 22. In addition, as shown in Figure 11, bolts 5 are inserted into the bearing holes 4a that are formed in the receptacle 4 of the liner 1 to prevent infection and thus retain the intragastric retainer 23 in the receptacle 4. It is shown in the following the steps for retaining the head portion 40a of the guide wire 40 and the tapered member 22 of the PEG catheter 20. As the guide wire 40 is inserted from the front end hole 22a of the tapered member 22 into the interior of the tapered member 22, the ball-shaped head portion 40a at the forward end of the guide wire 40 is mounted on the slope 31a of the retention member 31 distributed obliquely and reaches the interior space 34 of the tapered member 22, as shown in Figure 4 (a). As the guidewire 40 is further inserted, the head portion 40a of the guidewire 40 descends on the flat upper face 31b of the retaining member 31 into the wider groove 33 and enters the narrower groove 32, as shown in FIG. shown in Figure 4 (b) If the guidewire 40 extending from the abdomen of the patient through the outside cylinder 52 to the outside is pulled in this state from the outside, the head portion 40a in the portion of The front end of the guide wire 40 is retained in the stomach by the tapered member 22 and the front end of the PEG catheter 20, as shown in Figure 4 (c). Pulling acts on the portion of the tapered member 22, and the PEG catheter 20 and the liner 1 preventing infection are pulled, while the tapered member 22 and the PEG tube 21 are lined with the liner 1 preventing infection, within the stomach 71. through the cavity buccal, larynx, pharynx, esophagus. At this time, the hardly stretchable filaments 24 are fixed in the longitudinal direction of the thick outer circumferential portion 21a of the PEG tube 21. As a result, the PEG catheter 20 does not extend, even if the portion of the tapered member 22 of the PEG catheter 20 is pulled by the guidewire 40. In this way, as shown in FIG. 12, the tapered member 22 of the PEG catheter 20 contacts against the forward end of the outer cylinder 52 or reaches the vicinity of the outer cylinder 52. This contact or scope can also be confirmed by using the endoscope. In this state, the intragastric retainer 23 at the rear end of the PEG catheter 20 and the receptacle 4 at the front end of the liner 1 that prevents infections are still outside the mouth 71 of the patient. Then, the bolts 5 are pulled out of the bearing holes 4a to release the intragastric retainer 23 and the guide wire 40 is pulled further while removing the outer cylinder 52 from the stomach wall and the abdominal wall, as shown. in Figure 13. As a result, the tapered member 22 connected to the guide wire 40 and the PEG tube 21 connected to the tapered member 22 pass through the front end film 3 at the front end of the tubular body 2 and appear in the stomach 71. At the back end of the body 2 the flexible intragastric retainer 23 is pulled in the folded state into the tubular body 2 so that it advances towards the abdomen. Although the guide wire 40 is thus pulled to the outside of the patient, the receptacle 4 extracted from the mouth 71 of the patient is held by the hand of the endoscopist so that the liner 1 which prevents infections can not be pulled into the patient's body. As the guidewire 40 is further pulled, the tapered member 22 and the PEG tube 21 are pulled out through the holes in the stomach wall and abdominal wall, as shown in Figure 14. When the retainer 23 intragastric comes from the front end film 3 of the tubular body 2 and appears in the stomach 71, its original shape is restored, which has the four filaments extended, as shown in figure 15, to make contact against the wall of the stomach. This contact of the intragastric retainer 23 against the wall of the stomach can be confirmed, if necessary, by the endoscope 50. After this, the tubular body 2 is withdrawn from the patient's mouth 70 to the outside. The PEG tube 21 thus withdrawn to the outside of the patient's body is cut to a suitable length and an adapter (not shown) for nutrient injection is connected to the cut portion. In addition, the PEG tube 21 is fixed to the patient's body with a suitable fixation tool and thus terminates the operation of the PEG method. In this way, the outer surfaces of the guide wire 40 and the tubular body 2 that have passed through the buccal cavity, larynx and pharynx can be contaminated with bacteria that adhere to the buccal cavity, larynx and pharynx . However, the guide wire 40 is pulled out of the patient's body through the cylinder 52 outside so that those portions of the stomach wall and the abdominal wall which are going to be subjected to gastrostomy, are not contaminated by the guidewire 40. In addition, the PEG catheter 20 is pushed, while covered all the way with the lining 1 that prevents infections, through the oral cavity, the pharynx and the larynx into the stomach and is pulled from the tubular body 2 through the stomach. of the front end film 3 in the stomach, so that - the PEG catheter 20 is not contaminated with bacteria. Therefore, the portions. for the gastrostomy they are not contaminated with the bacteria, even if the tapered member 22 and the PEG tube 21 make contact with those portions when they are pulled out of the body. On the other hand, the tubular body 2 has its surface contaminated with the bacteria and is extracted from the patient's mouth to the outside, so that the portions for the gastrostomy are not contaminated with the liner 1 which avoids infections that include the tubular body 2 . As a result, it can be avoided in advance that these portions become contaminated. In the push method as well, the PEG catheter 20 is lined with liner 1 which prevents infection and is pushed into the stomach so that portions for gastrostomy can be effectively prevented from becoming contaminated with the bacteria. In addition, the PEG tube 21 is provided longitudinally with the filaments 24 hardly stretchable for reinforcement. As a result, the PEG catheter 20 does not extend, although it is pulled on the limb portion. 22 tapered and is sufficient at the time of retention of the tapered member 22 to be retained only once. [Mode 2] Figure 16 is an explanatory view showing a catheter equipment that prevents infections for the gastrostomy, according to modality 2 and Figure 17 and Figure 18 are explanatory views to explain the actions of the equipment. In this mode of mode, the infection-preventing gastrostomy catheter kit is provided with a housing liner 60 for maintaining and accommodating the intragastric retainer 23 of the PEG catheter 20 preliminarily in an extended state, so that the retainer 23 intragastric may be able to pass through lining 1 that prevents infections. The remaining constructions are substantially similar to those in the case of mode 1 and their description is omitted when deciphering the same portions as those in mode 1 with the common reference numbers. As shown in Figure 16, the housing liner 60 is shaped to have a flexible tubular body having an outer diameter slightly smaller than the internal diameter of the tubular body 2 of the liner 1 which prevents infection. As shown in Figure 17 and Figure 18, the intragastric retainer 23 is received in advance in the folded and extended state so that it may be able to pass in that state through the liner 1 which prevents infection. A liner 1 is provided which prevents infections on the inner wall of its front end side, with a hook member 6, which is diametrically reduced to have an internal diameter smaller than that of the tubular body 2. When the intragastric retainer 23 of the catheter 20 PEG leaves the front end portion of the tubular body 2 of the liner 1 preventing infection, the hook member 6 only engages the housing liner 60, so that it can only pull the intragastric retainer 23 while leaving the housing liner 60 in lining 1 that prevents infections. Next, the steps for the invention constructed in this way are described. As the pins 5 shown in figure 18 are pulled out to remove the catheter PEG of the liner 1 preventing infection with the guidewire 40, the PEG catheter 20 moves towards its front end portion along the inside wall of the liner 1 which prevents infection. The intragastric retainer 23 is then moved while being folded and accommodated in the housing liner 60, together with the PEG catheter 20 along the interior wall of the liner 1 which prevents infection. When the housing liner 60 reaches the position of the hook member 6, as shown in FIG. 19, only the lining 60 of accommodation is engaged by the hook member 6.

As a result, the intragastric retainer 23 is pulled out of the front end portion of the liner 1 which prevents infection while leaving the liner 60 in the tubular body 2 of the liner 1 which prevents infection, so that the intragastric retainer 23 restores its original shape in the stomach. The remaining actions are substantially similar to those of the modality 1 case and their After-action is omitted. In the aforementioned case, the hook member 6 is not placed on the inner wall of the liner 1 which prevents infection, but the housing liner 60 can be removed together with the intragastric retainer 23 inside the stomach, so that the retainer 23 intragastric can be removed from the housing liner 60 by drilling and pulling the strand that engages the housing liner 60, by means of the metal cord to remove tumors. Alternatively, the hook member 6 is not placed on the inside wall of the liner 1 to prevent infection, but the housing liner 60 can be removed together with the intragastric retainer 23 and the intragastric retainer 23 can then be removed directly from the housing liner 60 by means of the metal cord for extracting tumors. In this embodiment, the intragastric retainer 23 bends and extends in advance and is housed in the lining 60 of the accommodation so that it can pass through the liner 1 which prevents infection. As a result, the resistance of the passage in the liner 1 that prevents infections can be reduced to thin the lining 1 which prevents infections. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Claims (11)

2. Having described the invention as above, the claim contained in the following claims is claimed as property: 1. A lining gastrostomy catheter kit that prevents infection, characterized in that it comprises: a gastrostomy catheter including a hollow and flexible tube reinforced with - filaments, a deformable intragastric retainer positioned at the rear end of the tube, and a tapered member positioned at the front end of said tube to retain the leading end portion of the guide wire inserted from the leading end hole thereof; and an infection-preventing liner, including a hollow, flexible tubular body, and a receptacle member positioned at the rear end of the tubular body to retain the intragastric retainer, to removably line the gastrostomy catheter. 2. I heard a gastrostomy catheter kit with an infection-preventing liner, characterized in that it comprises: a gastrostomy catheter including a hollow, flexible tube reinforced with filaments, a deformable intragastric retainer placed at the rear end of the tube, a tapered member placed in the the front end of the tube for retaining the leading end portion of a guidewire inserted from the leading end hole thereof, and a housing liner for deforming and housing the intragastric retainer; and an infection-preventing liner that includes a hollow, flexible tubular body and a receptacle member positioned at the rear end of the tubular body to retain the intragastric retainer, to removably line the gastrostomy catheter.
3. 3. The gastrostomy catheter kit with liner to prevent infection, according to claim 2, characterized in that the lining for preventing infections further includes a hook member placed near the front end portion of its inner wall to engage the lining accommodation.
4. 4. The gastrostomy catheter kit with liner to prevent infection, according to claim 2 or 3, characterized in that the housing liner is made of a flexible, hollow and thin tubular body.
5. 5. The gastrostomy catheter kit with liner to prevent infection, according to any of claims 1 to 4, characterized in that the gastrostomy catheter is provided with filaments in its thick portion.
6. 6. The gastrostomy catheter kit with liner to prevent infection, according to claim 5, characterized in that the filaments are placed generally parallel to the longitudinal direction of the thick portion of the gastrostomy catheter.
7. 7. The gastrostomy catheter with liner to prevent infection, according to claim 6, characterized in that the filaments are generally buried in parallel with the longitudinal direction of the thick portion of the gastrostomy catheter.
8. 8. The gastrostomy catheter kit with liner to prevent infection, according to any of claims 5 to 7, characterized in that the filaments are buried in a predetermined distance in the circumferential direction of the thick portion of the gastrostomy catheter.
9. 9. The gastrostomy catheter kit with liner to prevent infections, according to any of claims 1 to 8, characterized in that the filaments are made of stainless steel wires.
10. 10. The gastrostomy catheter kit with liner to prevent infection, according to any of claims 1 to 9, characterized in that the filaments have an external diameter of approximately 0.2 mm.
11. 11. The gastrostomy catheter with a torso catheter for preventing infection, according to any of claims 1 to 10, characterized in that the intragastric retainer is made foldable and deformable.