JPH03254758A - Set for retaining percutaneous catheter - Google Patents

Abstract

PURPOSE:To see that a catheter can be locked and sealed easily and retained for a long period capably in conversion by giving pressure resistance to the catheter at a level that the inside and outside diameters are not deformed to the fastened part of the catheter. CONSTITUTION:In the figure, a terminal 9 has a through passage 60 at the center, and is the titanic percutaneous terminal excellent in organism affinity, and at the upper part are integrally made a screw 6, which performs the screw engagement with a titanic cap 4, and a attachment part 62, to which a circular elastic body 3 is attached. The circular elastic body 3 is silicon rubber of A50 deg. in shore hardness, and the catheter 2 is made of polyurethane of A85 deg. in shore hardness, and for the fastened member 31, a polyurethane tube of D75 deg. in shore hardness and of the same inside and outside diameters is used, and the top and the bottom are coupled and joined integrally by thermocompressive fusion. The hard tube 31 of the fastened member is set so that it may come to the position of the circular rubber elastic body 3, and a cap 4 is screwed in through the screw 61, and the circular rubber elastic body 3 is pressed by the upper plate including the tapered hole provided at the center of the cap 4, whereby the hard tube 31 of the fastened member is fastened, and the catheter 2 is locked to the percutaneous terminal 9.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a percutaneous catheter indwelling set, particularly for use in percutaneously indwelling a catheter for a long period of time for administering drugs to a living body, during withdrawal, and for drainage. The present invention relates to a percutaneous catheter indwelling set as a percutaneous medical device used in a percutaneous insertion device for performing percutaneous treatment by indwelling a catheter.

E. Prior Art] The above-mentioned percutaneous catheter indwelling sets include catheter sets for administering high-caloric fluids to central veins, catheter sets for continuously administering anticancer drugs, etc. to arteries and portal veins, and hemodialysis sets. It is used in femoral vein catheter sets for peritoneal dialysis, peritoneal catheter sets for continuous peritoneal dialysis, etc.

When a catheter is percutaneously indwelled for a long period of time, infection from the catheter insertion site is a major problem.

In order to prevent this infection, it has been proposed to use a percutaneous terminal with good biocompatibility.

That is, JP-A-59-174148, JP-A-6
As disclosed in Japanese Patent No. 1-247467, this is accomplished by inserting a catheter into a passage of a percutaneous terminal having a through passage and sealing the gap between the passage and the catheter. These methods prevent the catheter from directly touching the skin insertion site while a portion of the percutaneous terminal is buried within the skin. Note that percutaneous terminals are usually made of ceramics such as hydroxyapatite or alumina, which have excellent biocompatibility, or metals such as Ti (titanium).

Furthermore, Japanese Patent Publication No. 51-17355 discloses a means for disposing an elastic valve in a passageway for inserting and removing a catheter into the passageway without damaging the seal between the inside and outside of the body.

Also, Japanese Patent Application Laid-Open No. 62-281954, US Patent No. 4
, 688° 222 proposes a means for disposing a rubber elastic seal in the gap between a tube (catheter) and a percutaneous terminal, and pressurizingly sealing the two via the rubber elastic seal.

[Problems to be Solved by the Invention] In the catheter indwelling set using the percutaneous terminal as described above, it is important to reliably seal the gap between the passage of the percutaneous terminal and the catheter in order to prevent infection. This is an important point, and for this reason, generally, both are firmly and integrally joined in advance and used for clinical use.

However, catheters often suffer from occlusion of the lumen or deterioration of the material, necessitating removal and replacement. In this case, the percutaneous terminal connected within the body must also be extracted and removed at the same time. This extraction requires a lot of time and effort on the part of the doctor, requires consideration of invasion to the patient, and has the problem of not only causing considerable economic loss by ruining the expensive percutaneous terminal.

In order to avoid this problem, methods have been adopted in which the catheter attached to the percutaneous terminal is made detachable. One of them is to pressurize and connect the two through an elastic sealing member for sealing. In general, with this method, it is difficult to reliably lock and seal a catheter made of a flexible material by clamping, and the catheter may become constricted due to clamping, making it impossible to administer the drug solution at the required rate. Furthermore, it becomes impossible to insert an embolus or a guide wire into the catheter lumen.

Another method is to attach the catheter in advance with a threaded flange and screw this into the percutaneous terminal. In this case, there is a risk that the catheter may become twisted inside the body due to the rotation accompanying the twisting. Furthermore, since the flange position is determined in advance, there is a problem in that during clinical use, the length of the portion of the catheter that is indwelled in the body cannot be adjusted.

The present invention has been made to solve the above-mentioned problems, and has a structure in which the catheter is detachable, can be securely connected and sealed, and the catheter lumen is not constricted. The object of the present invention is to provide a percutaneous catheter indwelling set in which the catheter insertion length can be freely adjusted.

[Means for Solving the Problems] The basic configuration of the percutaneous catheter indwelling set according to the present invention is as follows:
A combination of a percutaneous terminal with a through-path and a catheter that is inserted into the through-path so that it can be pushed and pulled freely.The catheter is fixed by a cap that is fitted onto the head of the percutaneous terminal with a screw. A device that directly or indirectly locks and seals a catheter by inserting the catheter into the site or pressing or clamping an annular rubber elastic body placed in the center. Catheter locking and sealing The present invention is characterized in that the method or the portion of the catheter to be compressed is processed. Its specific configuration is as follows.

The percutaneous catheter indwelling set according to the first aspect of the present invention is provided with pressure resistance to such an extent that the inner and outer diameters of the catheter are not substantially deformed or reduced by the compression of the portion to be compressed. A specific method for imparting pressure resistance may be to increase the hardness by chemically treating the part to be clamped or by integrally joining the catheter with a hard tube member made of a different material. A hard sleeve may be integrally joined to the outer surface of the catheter, or a hard spring coil or the like may be embedded in the catheter wall of the pressure-clamped portion of the catheter.

The percutaneous catheter indwelling set according to the second aspect of the present invention is one in which a flanged sleeve is integrally joined to a predetermined position of a catheter, and both the flange and the sleeve are fixed by direct pressure. It is also possible to apply pressure and fixation to only the portion of the seal.

In the percutaneous catheter indwelling set according to the third aspect of the present invention, a slidable hard sleeve is fitted into the catheter, one end or middle part of this sleeve is made into an enlarged diameter part, and a small diameter part is attached to the end of the enlarged diameter part. One small hole is provided in each case, and once the clamping area is determined, the sleeve is moved and fixed according to this location, and glued from the open part or small hole at one end of the sleeve to the gap between the enlarged diameter part of the sleeve and the catheter. A material is poured in to join the two together, and the sleeve is then compressed. In this configuration, the sleeve has an enlarged diameter section in the middle, and by extending the upper section and giving it a bend, the catheter extending upward from the percutaneous terminal can be used to run along the body surface. It is mainly used to prevent the catheter from kinking at the top of the percutaneous terminal when

In order to reliably lock the catheter or the annular rubber elastic body, it is desirable that each of the above-mentioned sleeves has a flange or an annular or wart-like protrusion formed outward.

[Operation] In the above-mentioned first invention, since the portion of the catheter to be compressed is locally hardened by hardening the material of the catheter itself or by applying another hard member, the inherent flexibility of the catheter is reduced. By screwing in and pressing the cap, it is possible to connect and seal the catheter to the percutaneous terminal by tightening the annular rubber elastic body without compromising the properties of the indwelling site in the body where it is required. .

In addition, in the second invention, the catheter is joined inside the sleeve of the hard flanged sleeve, and the flange and sleeve portions are clamped, or only the flange portion is clamped, so that the catheter It is possible to lock and seal the fixing portion without having to harden it as in the first invention.

Furthermore, in the third invention, a hard sleeve having an enlarged diameter portion at one end or an intermediate portion is slidably disposed on the catheter, and when the fixed position of the catheter is determined, this portion is attached to the enlarged diameter portion. It is suitable for use by adjusting the insertion depth of the catheter because it is fixed to the catheter by filling with adhesive.

In addition, since the flange, annular projection, or wart-like projection is formed on the hardened portion of the catheter or the outer surface of the sleeve, the locking with the rubber-like elastic body is performed mechanically, so that the fixing is easy and strong.

[Examples] Examples of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the embodiments shown below, and can be modified in various ways without departing from the gist thereof.

Example 1; FIG. 1 is a schematic sectional view showing an example of a percutaneous catheter indwelling set according to the first aspect of the present invention. In the figure, reference numeral 9 denotes a percutaneous terminal made of titanium that has a through passage 60 in the center and has good biocompatibility, and a cap 4 made of titanium on the upper side.
A screw 61 for screw fitting with the annular rubber elastic body 3 and a mounting portion 62 for attaching the annular rubber elastic body 3 are integrally molded. The lower half of the percutaneous terminal 9, including the lower flange 9a, is embedded within the skin. The inner diameter of the through passage 60 is 2.7N.

Further, the annular rubber elastic body 3 is made of silicone rubber with a Shore hardness of A50 degrees. Catheter 2 has an outer diameter of 2.5n+.

Made of polyurethane with an inner diameter of 1.2n+ and a Shore hardness of A85, and the pressure clamped part 31 has a Shore hardness of D75 with the same inner and outer diameters.
Using polyurethane tubes, the upper and lower parts were integrally connected and joined by heat-pressure welding.

To assemble, first leave the cap 4 free, place the catheter 2 in the center hole of the annular rubber elastic body 3 and the through passage 60, and place the hard tube 31 of the clamped part at the position of the annular rubber elastic body 3. Insert. Next, the cap 4 is screwed in through the screw 61, and the annular rubber elastic body 3 is attached to the cap 4.
When pressed with the upper plate part including the tapered hole provided in the center of the tube, the hard tube 31 of the clamped part is clamped, the catheter 2 is connected to the percutaneous terminal 9, and the annular rubber elastic The gap between the body 3 and the hard tube 31 of the clamped portion is completely sealed. In this manner, since the hard tube 31 of the press-clamped portion is a hard body, it will not be deformed by press-clamping. Note that 23 and 24 are holes for a wrench for screwing in and loosening the cap 4.

In the percutaneous catheter indwelling set shown in Fig. 1, the intracorporeal length of the catheter 2 was set to 25 (maximum), the percutaneous terminal 9 was placed in the anterior chest, and when used for central venous hypercaloric infusion, sufficient We were able to secure a sufficient flow rate and complete the treatment without the catheter becoming dislodged.

FIG. 2 is a schematic sectional view showing another embodiment of the first invention. Using the same partially cured catheter 2, locking and sealing were performed in the same manner as in FIG. In the embodiment shown in FIG. 2, a reinforcing body 12 of a vertically communicating type that communicates vertically through a through passage 60 is joined to the percutaneous terminal 11, and a screw 61 and a mounting portion 62 are formed on the upper part of the reinforcing body 12. It is made up of things. Note that 21 and 22 are fitting protrusions of a wrench for screwing in and loosening the cap 4. Furthermore, in this embodiment, a perforated rubber elastic valve body 7 is provided at the lower part of the lower flange lla of the percutaneous terminal 11, which is used to reduce backflow when the cap 4 is removed and the catheter 2 is replaced. It shows.

FIG. 14 shows this perforated rubber elastic valve body 7.

FIG. 14(a) is a sectional view thereof, and FIG. 14(b) is a bottom view thereof.

A tapered hole 42 is provided in the center so that it can be easily opened when the catheter 2 is inserted. Instead of this rubber elastic valve body 7, a rubber elastic valve body 8 with a slit as shown in FIG. 15 may be used, and the rubber elastic valve body 8 shown in FIG. A cross-shaped slit 43 may also be provided.

FIG. 3 is a schematic diagram showing the components of the percutaneous terminal and the clamping part. In this embodiment, the reinforcing body 10 is the percutaneous terminal main body 11.
The reinforcing body 10 and the percutaneous terminal main body 11 form the percutaneous terminal 1. cap 4
can be attached to and detached from the percutaneous terminal at the screw 61.

FIG. 4, FIG. 5, FIG. 6, and FIG. 7 are all schematic partial cross-sectional views showing embodiments of a partially hardened catheter.

FIG. 4 shows the embodiment shown in FIG.
Hard tube 3 made of hard polyurethane tube
1 was used for joining.

In addition to the above-mentioned configuration, this type of partially hardened catheter includes a soft PVC (polyvinyl chloride) catheter 2.
and a hard sleeve made of PVC, ABS (acrylonitride butadiene styrene), or polycarbonate. Another example is PVC.

PUR (polyurethane), silicone rubber catheter, hard PVC, ABS, polycarbonate, hard FU
A sleeve made of R, polyether sulfone, or stainless steel may be joined.

Figure 5 shows an example of partial hardening by chemical treatment, -
As an example, a catheter 2 made of polybutadiene resin is used, and a portion 30 to be compressed is irradiated with ultraviolet rays, and this portion is crosslinked and cured to form a hard tubular body 35. As another example, the clamped portion 30 of the catheter 2 formed from plasticized PC may be immersed in ethyl ether to extract the plasticizer and harden.

In FIG. 6, a hard coil spring 32 is disposed within the wall of the catheter 2 of the clamped portion 30 to form a partially hardened catheter, and similar effects can be obtained. The material of the coil spring 33 is not limited.

In FIG. 7, a hard sleeve 33 is integrally joined to the outer surface of the catheter 2 of the clamped portion 30.

The material of the sleeve 33 is not limited.

As mentioned above, in all of the partially hardened catheters shown in the embodiments of FIGS.
It has been provided with pressure resistance to such an extent that its inner and outer diameters are not substantially deformed or reduced by pressing, and this is a condition for its formation.

Embodiment 2; FIGS. 8 and 9 are schematic sectional views showing an embodiment according to the second invention of the present invention. In this case, in each embodiment, the case is shown in which the integrated percutaneous terminal 9 and cap 4 shown in the embodiment of FIG. 1 are used.

In FIG. 8, a flanged sleeve 63 is integrally molded by joining the sleeve side to the outer surface of the catheter 2 at a predetermined position, and this is housed in the mounting section 62, and the annular rubber elastic body 3 is installed on top of it. The cap 4 is placed on top, and both the flange portion of the flanged sleeve 63 and the sleeve are pressurized, and the lower catheter 2 is fixed under pressure to a predetermined length. In this way, in the embodiment shown in FIG. 8, the sleeve and flange are connected and sealed by applying pressure with the annular rubber elastic body 3, so as in the case of embodiment 1, the catheter is not deformed. Can be fixed.

FIG. 9 is an embodiment showing another aspect of FIG.
A flanged sleeve 63 similar to the embodiment shown in the figure is integrally molded with the catheter 2, and an annular rubber elastic body 3a having a relatively large inner diameter is installed in the mounting section 62, and then the flanged sleeve 63 is placed on top of the annular rubber elastic body 3a. , the flange portion is fixed under pressure by screw fitting of the cap 4. In this method, the catheter 2 can be pressurized, locked and sealed without being directly clamped, and therefore has the advantage that there is no need to make the sleeve part or the catheter hard.

The above embodiment 1.2 describes the configuration of a percutaneous catheter indwelling set that has a structure that allows easy and reliable locking and sealing without deforming the catheter when the intracorporeal catheter has a predetermined length. did.

Embodiment 3; FIGS. 10 and 11 are schematic sectional views showing an embodiment of a percutaneous catheter indwelling set according to a third aspect of the present invention.

First, in FIG. 10, the main body 11 of the percutaneous terminal 1 is made of hydroxyapatite, which is a material with excellent biocompatibility, and is held together from above and below through a cylindrical body passing through the inner surface of the through passage 60. The jointed reinforcing body 12 of the vertical communication type was made of polycarbonate, and the percutaneous terminal main body 11 and the reinforcing body 12 were adhered with epoxy resin to form the percutaneous terminal 1. The lower part of the reinforcing body 12 is extended and curved to prevent the catheter 2 from kinking inside the body.

The inner diameter of the passage through the reinforcing body 12 is 4.2 mm, and the annular rubber elastic body 3 installed in the upper part 62 has Shore hardness A.
50 degree silicone rubber was used. Expanded diameter part 25 in the middle
The sleeve 6 with a curved upper part (one side) is made of stainless steel, the enlarged diameter part 25 has an inner diameter of 5-1, the other parts have an inner diameter of 4.3 mm, and a high An annular protrusion 26 with a diameter of 0.5 is provided. Note that this annular projection may be a wart-like projection. The upper part of the enlarged diameter part 25 is 180° to each other.
Two small holes 29 of 0.7+n were provided at separate positions. The structure of the small hole 29 portion is shown in the partially enlarged view of FIG. 12.

The catheter 2 was made of polyurethane and had an outer diameter of 4.0 mm, an inner diameter of 2.7 N, and a shore hardness of A80 degrees.

In assembly, after the insertion depth of the catheter 2 is determined, the sleeve 6 is slid into a predetermined position, the cyanoacrylate adhesive 40 is injected through the small hole 29 to bond the catheter 2 and the sleeve 6, and then By screwing and fitting the cap 4, the annular rubber elastic body 3 was clamped onto the sleeve 6. In addition, in order to accelerate the curing of the adhesive described above, a small amount of an amine accelerator was dropped into the injection site of the small hole 29. In addition, adhesive 4
0 is not limited to that in the above embodiment.

FIG. 11 shows an embodiment having a simpler structure than the embodiment shown in FIG. 1O. The basic structure is the same as that shown in FIG. 1O, but instead of the sleeve 6 in FIG.
(with a flange 27 on the lower side), the enlarged diameter part 2
Adhesive 40 was dripped from the open gap above the catheter 2 and the sleeve 5 was bonded to each other inside the enlarged diameter portion 28.

The situation is shown in Fig. 18. The lower side of the lower flange lla of the percutaneous terminal 11 may have an integral bottom shape with the reinforcing body 12 as shown in Fig. 1O, but in this embodiment, this part is made flat without being extended and bent. showed that. A valve body 7 made of silicone rubber with Shore hardness A of 60 degrees is integrally bonded to the bottom of this percutaneous terminal with adhesive, and a 2Nφ hole is provided at the tip of this rubber elastic valve body 7 as in the case of Fig. 2. It was assumed that

As described above, in the third embodiment, a straight or curved hard sleeve 5.6 is used, which is slidably arranged on the outer surface of the catheter 2 with respect to the clamped portion of the catheter 2, and the inner lumen of the one end or intermediate portion thereof is used. The catheter and the sleeve are bonded together by providing an enlarged diameter section and injecting adhesive through a small hole in the enlarged diameter section. In other words, in this case, it is possible to provide a percutaneous catheter indwelling set characterized in that the required length of the intracorporeal catheter can be adjusted as desired.

Embodiment 4: FIG. 16 is a schematic cross-sectional view showing an application example of the percutaneous catheter indwelling set according to the present invention. The peelable terminal main body 14 was shaped with hydroxyapatite, and a vertically communicating reinforcing body 13 molded from polyether sulfone (PES) was bonded thereto. Percutaneous terminal body 1 including flange 14a
The lower half of No. 4 is the part to be buried under the skin. Reinforcement body 1
The inner diameter of the through passage No. 3 is 10n+. Annular rubber elastic body 3
, the rubber elastic valve body 7 is produced according to Example 1.2.

The catheter 2 has an outer diameter of 2.7 mm, an inner diameter of 2.0 mm, and is made of polyurethane with a Shore hardness of D60.
The outer surface has an outer diameter of 40 am, an inner diameter of 2.8 m, and a length of 15 m.
Hard sleeve 33 made of polyether sulfone (
(see FIG. 7) was joined inside the body, and the assembly method was the same as that of Examples 1 and 2. Also, 64
is an inlet attachment for catheter 2. In this case, this set was placed in the femoral vein and used as a blood removal route for hemodialysis. When the catheter is not in use, a polyurethane (PUR) embolus 50 with an outer diameter of 1.81111% and a shore hardness of 60 degrees is inserted into the catheter 2 to prevent blood from flowing back into the lumen and coagulating and embolizing it. It has become. FIG. 16 also illustrates this state.

When replacing the catheter 2, insert a Teflon rod (not shown) with the same diameter as the embolus 50 and about three times the length of the catheter 2 into the catheter 2, loosen the cap 4, and leave the rod as it is. Then, only the catheter 2 with the hard sleeve 33 is pulled out and removed from the rod-shaped body, a new catheter 2 is inserted along this rod-shaped body and left in a predetermined position, and then only the rod-shaped body is pulled out. Then, the loosened cap 4 is tightened appropriately to fix it in use. Note that the rod-shaped body is preferably made of Teflon, polyurethane guide wire, etc., which are flexible and have good sliding properties.

[Effects of the Invention] As described above, according to the first and second aspects of the present invention, the portion of the catheter to be clamped is partially hardened by various means (first invention), Since the clamped part was formed by integrally joining the flanged sleeve to the catheter (second invention), this area was clamped via the annular rubber elastic body to secure the catheter to the percutaneous terminal. - It is easy to seal, and a catheter of a predetermined length can be indwelled in a normal state for a long period of time so that the catheter can be exchanged percutaneously without deforming the catheter due to compression.

Further, according to the third invention, a hard sleeve that is slidable on the catheter and has an enlarged diameter portion at one end or a middle portion is used, and after the internal length of the catheter is determined, an adhesive is put into the enlarged diameter portion. The catheter and sleeve are glued together, and this is similarly clamped with an annular rubber elastic body at the sleeve position to secure and seal the catheter, so the length of the intracorporeal catheter can be adjusted as desired, and the catheter can be easily replaced. A widely reliable percutaneous catheter indwelling set can be provided.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view showing one embodiment of the percutaneous catheter indwelling set according to the first invention, FIG. 2 is a schematic cross-sectional view showing another embodiment of the first invention, and FIG. FIGS. 4 to 7 are partial cross-sectional views showing embodiments of the partially cured catheter of the present invention. FIGS. A sectional view showing an embodiment of the invention,
Figure 1O. FIG. 11 is a sectional view showing an embodiment of the third invention, FIG. 12 is a partially enlarged sectional view showing a movable bending sleeve, FIG. 13 is a partially enlarged sectional view of a variable straight sleeve, and FIGS. 14 and 15.
The figure is a schematic diagram showing the rubber elastic valve body at the lower part of the percutaneous terminal flange, and Fig. 16 shows an application example of the percutaneous catheter indwelling set of the present invention, and also shows a state in which an embolus for preventing occlusion is fitted into the catheter. It is a schematic cross-sectional view. In the figure, 1 is a percutaneous terminal, 2 is a catheter, 3 is an annular rubber elastic body, 4 is a cap, 5 is a straight sleeve (movable), 6 is a bent sleeve (movable), and 7 is a rubber elastic valve body (with holes). 8 is a rubber elastic valve body (with slit), 9 is an integrated percutaneous terminal, 10 is an upper reinforcement body, 11 is a percutaneous terminal main body, 12 is a reinforcing body with upper and lower communication type, 13 is a nail type reinforcement body,
14 is a nail-shaped percutaneous terminal body, 21.22 is a fitting protrusion, 2
3.24 is the stop hole, 25 is the enlarged diameter part in the middle of the sleeve, 2B
27 is an annular projection, 27 is a flange of the sleeve, 28 is an enlarged diameter portion at the end of the sleeve, 29 is a small hole, 30 is a pressurized portion of the catheter, 31 is a T-tube, 32 is a hard coil spring, 33 is a hard sleeve, 35 is a hard tubular body, 40
60 is an adhesive, 61 is a screw, 62 is a mounting portion, 63 is a flanged sleeve, and 66 is an attachment.

Claims (3)

[Claims] (1) A percutaneous terminal having a through-path, a catheter inserted into the through-path so as to be pushable and pullable, and a catheter formed to be screwed into the head of the percutaneous terminal and surrounding a fixing part of the catheter. In a percutaneous catheter indwelling set, the percutaneous catheter indwelling set includes a cap that fixes the catheter by pressing an annular rubber elastic body disposed on the cap, the cap tightens and fixes the catheter via the annular rubber elastic body, and also creates a seal. A percutaneous catheter indwelling set, characterized in that the portion of the catheter to be compressed has pressure resistance to the extent that its inner and outer diameters are not deformed by compression. (2) a percutaneous terminal having a through-path, a catheter inserted into the through-path so as to be pushable and pullable, and a catheter formed to be screwed into the head of the percutaneous terminal and surrounding the fixation site of the catheter; and a cap for fixing the catheter by pressing an annular rubber elastic body disposed on the catheter, the flange of the catheter being formed by integrally joining a flanged sleeve at a predetermined position. A percutaneous device characterized in that a catheter is connected and sealed to the percutaneous terminal by compressing the flange of the sleeve with the cap, the sleeve, or both parts by the cap via the annular rubber elastic body. Catheter placement set. (3) a percutaneous terminal having a through-path, a catheter inserted into the through-path so as to be pushable and pullable, and a catheter formed to be screwed into the head of the percutaneous terminal and surrounding the fixation site of the catheter; A percutaneous catheter indwelling set comprising: a cap for fixing the catheter by pressing an annular rubber elastic body disposed on the catheter;
It has an enlarged diameter part with an enlarged inner diameter at one end or an intermediate part, and the enlarged diameter part in the middle part has a straight or curved sleeve with at least one small hole, and the catheter has an enlarged diameter part with an expanded inner diameter. The catheter is connected to the percutaneous terminal by pressing the sleeve, which is glued to the gap between the enlarged diameter part and the catheter at the longitudinal position, with the cap via the annular rubber elastic body.
A percutaneous catheter indwelling set characterized by being sealed.