WO2002000286A1 - Reusable catheter - Google Patents

Reusable catheter Download PDF

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Publication number
WO2002000286A1
WO2002000286A1 PCT/FR2001/002006 FR0102006W WO0200286A1 WO 2002000286 A1 WO2002000286 A1 WO 2002000286A1 FR 0102006 W FR0102006 W FR 0102006W WO 0200286 A1 WO0200286 A1 WO 0200286A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
cylindrical body
characterized
means
reusable
reusable catheter
Prior art date
Application number
PCT/FR2001/002006
Other languages
French (fr)
Inventor
Thierry Loubens
Lionel Riou
Antoine Watrelot
Original Assignee
Soprane Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421Cannulas
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/02Holding devices, e.g. on the body
    • A61M25/04Holding devices, e.g. on the body in the body, e.g. expansible
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831Material properties
    • A61B2017/00867Material properties shape memory effect
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2901Details of shaft
    • A61B2017/2905Details of shaft flexible
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B2017/348Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/3484Anchoring means, e.g. spreading-out umbrella-like structure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters

Abstract

The invention concerns a reusable catheter for transvaginal treatment and diagnosis of infertility comprising a cylindrical body (2) provided with connecting means (3), grip means (4), at least an internal passage (7, 8) connected to the connection means (3), retaining means (16) deformed by sliding a surgical needle sleeve (9), and opposite the connection means (3) an internal chamber (14) designed to receive guide means (15) linked to said body by retaining means (16) which consist of an expansible ring (23) divided in its central part by several parallel slots (24) forming fine strips (25) constituting around the cylindrical body (2) a collar (28) forming a support base when the reusable catheter (1) is inserted into the operative site.

Description

REUSABLE CATHETER

The present invention relates to a reusable catheter, i.e. it can be sterilized after each surgical operation to re-use.

by reusable catheter means a catheter / trocar having the function of a tool to puncture the walls and the function of a catheter for introduction into the operative site, either liquid products or a range of surgical or other cores instruments, or both simultaneously.

Is known from the French patent FR 97 13988 belonging to the Applicant, a single-use multipurpose catheter which comprises a cylindrical body of small diameter provided at one of its ends connecting means which communicate with non-coaxial channels formed in the inner portion of said cylindrical body.

It is noted that at least one channel supplied to the end opposite that bearing the connection means, a balloon capable of deforming elastically under the effect of pressure, while the other channels permit introduction, either liquid, or a range of surgical mandrels and / or other instruments, or both at the same time at different operating sites.

such catheters Note that is made of plastic materials that can not withstand sterilization temperatures are around 130 degrees.

It is these drawbacks more particularly to remedy the present invention.

The reusable catheter according to the present invention is to be able to withstand sterilization temperatures keeping all the characteristics of plastic catheters, connection means, internal channels, retaining and sealing means.

The reusable catheter according to the present invention is intended for the field of treatments and diagnostics of infertility transvaginally.

The reusable catheter according to the present invention comprises a cylindrical body provided with connection means, with gripping means, at least one internal channel connected to the connection means, retaining means deformed by the sliding of a surgical mandrel, and the contrast means an internal chamber connection for receiving guide means connected to said body by retaining means which is constituted by an expandable ring divided in its central portion and in a longitudinal direction by a plurality of parallel slots forming a thin allowing to form around the cylindrical body a collar forming a support base when the reusable catheter is introduced into the surgical site.

The reusable catheter according to the present invention comprises guiding means which consist of a cylindrical sleeve comprising at least one internal bore disposed in the extension of the cylindrical body channel, an elongated cylindrical portion and sliding inside the chamber and a shoulder having an outer diameter which is identical to that of the outer cylindrical body for receiving the retaining means.

The reusable catheter according to the present invention comprises an internal bore which has, on the one hand a first internal diameter (d1) slightly higher than external of a stop integral with the surgical mandrel, and on the other hand a second internal diameter (d2 , mainly formed in the shoulder which is of smaller diameter than that (d1) to form an internal shoulder (e1).

The reusable catheter according to the present invention comprises retaining means which are constituted by an expandable ring of small thickness made from a superelastic tube of Ni-Ti type alloy.

The reusable catheter according to the present invention comprises an expandable ring which is divided in its central portion and in a longitudinal direction by a plurality of parallel slots forming a thin who are educated by heat treatment.

The reusable catheter according to the present invention comprises blades which are delimited in length at each end of the expandable ring by cylindrical portions respectively secured to the cylindrical body and the shoulder of the cylindrical sleeve.

The reusable catheter according to the present invention comprises an expansible ring that is naturally in the deformed position so that the strips formed around the cylindrical body a flange.

The reusable catheter according to the present invention comprises a surgical mandrel which consists of a metal rod comprising at one of its ends a head, and near the other end tapered profile to a cylindrical stopper.

The reusable catheter according to the present invention comprises a surgical mandrel which consists of a metal rod comprising at one of its ends a head, and near the other end to half-sphere profile in a cylindrical stop.

The reusable catheter according to the present invention comprises a cylindrical body which is made of a rigid stainless steel tube. The reusable catheter according to the present invention comprises a cylindrical body which consists of a flexible tube made of a plastic material around which is provided a deformable metal framework.

The reusable catheter according to the present invention comprises a cylindrical body which comprises, close to the gripping means, a conical shoulder which the least wide base is turned on the side of said gripping means.

The reusable catheter according to the present invention comprises a conical shoulder, the least wide base has an external diameter identical to that of the cylindrical body, while the widest base of the cone has a diameter larger than that of said cylindrical body.

The reusable catheter according to the present invention comprises a cylindrical body which is inserted into an elastic sleeve to make the expandable ring of the retaining means, waterproof.

The reusable catheter according to the present invention comprises an elastic sleeve which is composed of a thin tube made of a material such as silicone or latex or any other similar substance.

The reusable catheter according to the present invention comprises a tube having a first open end undeformable and whose internal diameter corresponds to the external shoulder of the sleeve to abut against the latter, and an open second end provided with a slightly deformable bead for immobilizing the elastic sleeve in a stretched position on the cylindrical body, at the conical shoulder, through a complementary shaped split ring.

The following description from the accompanying drawings given as non-limiting examples, will understand the invention, its characteristics and the benefits it can provide:

Figure 1 is a view illustrating the reusable catheter according to the present invention.

Figures 2 and 3 are views showing in detail the means for guiding and retaining in the retracted position to form a peripheral flange around the end of the reusable catheter according to the present invention.

Figure 4 is a view showing the surgical mandrel for actuating the guiding means of the reusable catheter according to the present invention. Figure 5 is a view illustrating in detail the means for guiding and retaining elongated position during introduction of the surgical mandrel within the reusable catheter according to the present invention.

Figures 6a to 6d are schematic views showing the various steps to perform to the introduction of the reusable catheter within the operative site.

Figure 7 is a view showing a reusable catheter variant so that it has a flexible cylindrical body.

Figures 8 and 9 are views showing in detail the means for guiding and retaining in the retracted position to form a peripheral flange around the end of the flexible reusable catheter according to the present invention.

Figure 10 is a view illustrating another surgical mandrel to actuate the means for guiding the reusable flexible catheter according to the present invention.

Figure 11 is a view showing in detail the means for guiding and retaining elongated position during introduction of the surgical mandrel inside the reusable flexible catheter according to the present invention.

12a to 12d are schematic views showing the various steps to perform to the introduction of the reusable flexible catheter within the operative site.

Figures 13 to 18 are views illustrating the introduction and fixing an elastically deformable tube around the catheter to form reusable sealing means around the retaining means.

There is shown in Figures 1 to 5 a reusable catheter 1 consists of a cylindrical body 2 made of a tube of stainless metallic material.

The cylindrical body 2 has at one of its ends connecting means 3 which are disposed near the head 4 forming the gripping means of the reusable catheter 1 by the surgeon.

The connection means 3 are constituted of tubes 5 and 6 forming input which communicate with non-coaxial channels 7 and 8 drilled in the inner part of the head 4 and the cylindrical body 2.

The tube 5 is provided in the extension of the cylindrical body 2 and allows the introduction into the main duct 8 of a surgical mandrel 9 or an unrepresented optical.

The tube 6 opens into the secondary channel 7 in a certain inclination relative to the longitudinal axis XX 'of the cylindrical body 2 about 15 degrees widely radiated to allow passage of semi-rigid instruments or fluid.

The tube 6 comprises a closing and opening device 10, for example a metal luer valve to a channel.

Surgical mandrel 9 is constituted of a metal rod 11 having at one end thereof a head 31, while the opposite end 12 has a tapered and pointed profile.

The rod 11 comprises, near the tapered end 12 a cylindrical stop 13 whose outer diameter is greater than that of the rod and the tapered end.

The cylindrical body 2 comprises, opposite the connection means 3 and gripper 4, an inner chamber 14 of cylindrical shape into which the non-coaxial channels 7 and 8, and slide along the longitudinal axis XX 'means guide 15 allowing the deformation of retaining means 16.

The guide means 15 consist of a cylindrical sleeve 17 having in its interior two bores non-coaxial opening 18 and 19 which are arranged respectively in the extension of the channels 7 and 8 of the cylindrical body 2,

The cylindrical sleeve 17 includes an elongated cylindrical portion 20 and which slides inside the chamber 14 of the cylindrical body 2 and a shoulder 21 having an outer diameter greater than that of the elongate portion 20.

The shoulder 21 of the sleeve 17 has an outer diameter which is identical to the outer cylindrical body 2 to receive the retaining means 16.

The shoulder 21 of the sleeve 17 has a portion of its diameter an inclined face 22 whose angle of inclination is identical to that of the tapered end 12 of the surgical mandrel 9.

The bore 19 of the sleeve 17 has on one hand a first inner diameter d1 slightly larger than the outer stop 13 of the surgical mandrel 9, and secondly a second inner diameter d2 lobed profile, formed mainly in shoulder 21 which is of smaller diameter than that d1, e1 to form an internal shoulder.

The internal diameter d2 is slightly greater than that of the tapered end 12 of the surgical mandrel 9.

The lobed profile of the bore 19 at its diameter d2 allows the centering of a lens inside the reusable catheter 1 while allowing the flow of a fluid on the periphery of said optic. The internal shoulder e1 allows to block longitudinally along the axis XX 'of the cylindrical body 2 of the displacement stroke of surgical mandrel 9 when the stopper 13 comes into contact with said internal shoulder e1.

16 retaining means are constituted by an expandable ring 23 of small thickness made from a superelastic alloy tube type Ni-Ti.

The expandable ring 23 is divided in its central portion, and a longitudinal direction, by a plurality of parallel slots 24 forming thin strips 25 that are educated by heat treatment.

The slats 25 are delimited in length at each end of the expandable ring 23 of cylindrical portions 26 and 27.

Naturally the ring 23 in the deformed position, opens and closes by pulling at its ends.

The deformed position of the slats 25 makes it possible to form, around the cylindrical body 2, a flange 28 forming a support base when the reusable catheter 1 is introduced into the surgical site.

The expandable ring 23 is used to connect the guide means 15 to the cylindrical body 2 of the catheter 1 reusable.

Indeed, the cylindrical portion 26 of the ring 23 is fixed to the outer diameter of the cylindrical body 2, while the portion 27 is fixed to the outer diameter of the shoulder 21 of the sleeve 17.

In Figures 6a to 6d there are shown the various steps of use of the reusable catheter 1 for insertion within the surgical site.

In the rest position the reusable catheter 1 has 16 deformed retaining means, so that the lamellae 25 affect the profile flange 28 around the cylindrical body 2 (Figure 6a).

To allow instead of the reusable catheter 1 put on the surgical site, the surgeon must first introduce the surgical mandrel 9 inside the channel 8 and the bore 19, until the stop 13 abuts against e1 shoulder of the bore 19 (Figure 5).

The surgeon then pushes the surgical mandrel 9 to déplaceMes guide means 15, more particularly the cylindrical sleeve 17 along a longitudinal direction carried by the axis XX 'of the body 2 (Figure 6b).

The displacement of the cylindrical sleeve 17 allows to extend the slats 25 of the expandable ring 23 in a direction substantially parallel to the axis XX 'of the cylindrical body 2 to close as possible to the external diameter of said body (Figure 6b).

The surgeon proceeded to lock surgical mandrel 9 inside the cylindrical body 2 to secure the expandable ring 23 in extended position in order to introduce the reusable catheter 1 in the operating site. Locking the surgical mandrel 9 in the cylindrical body 2 is obtained by a bayonet type system not shown.

The introduction of the catheter 1 in the reusable surgical site is facilitated by the tapered profile 12 of the mandrel 9 which opens to the outside of the cylindrical body 2 to allow the perforation of the patient's tissue.

The surgeon positions the reusable catheter 1 so that the expandable ring 23 is disposed within the surgical site.

Once the reusable catheter 1 is perfectly positioned in the surgical site, the surgeon releases the surgical mandrel 9 and out of the cylindrical body 2 (Figure 6C).

Surgical removal of mandrel 9 allows the expandable ring 23 of naturally resume their profile shaped collar 28 due to the characteristics of the superelastic alloy (Fig 6d).

The surgeon may then use the reusable catheter 1 to perform its various tests or operations.

In figures 7-11 has been shown a variant of the reusable catheter 1 described above as regards in particular the realization of the cylindrical body 2.

Indeed, the latter is constituted by a flexible tube 29 made of a plastic material such as PTFE or the like, around which is provided a metal frame 30 deformable.

The cylindrical body 2 has at one of its ends the connection means 3 which are arranged close to the head 4 forming the gripping means of the reusable catheter 1 by the surgeon.

The connection means 3 are constituted of tubes 5 and 6 forming the inputs which communicate with a single main channel 8 pierced in the inner part of the head 4 and the cylindrical body 2.

The tube 5 is provided in the extension of the cylindrical body 2 and allows the introduction into the main duct 8, a surgical mandrel 9 or an unrepresented optical. The tube 6 opens into the main duct 8 in a certain inclination relative to the longitudinal axis XX 'of the cylindrical body 2 about 15 degrees widely radiated to allow passage of semi-rigid instruments or fluid.

The tube 6 comprises a closing and opening device 10, for example a metal luer valve to a channel.

Surgical mandrel 9 is constituted of a metal rod 11 having at one end thereof a head 31, while the opposite end has a profile in hemisphere 32.

The rod 11 comprises, near the end half-sphere 32 a cylindrical stop 13 whose outer diameter is greater than that of the shank and of the end hemispherical.

The cylindrical body 2 comprises, opposite the connection means 3 and 4 gripping an inner chamber 14 of cylindrical shape into which the main channel 8 and slide along the longitudinal axis XX ', the guide means 15 allowing the deformation of the retaining means 16.

The guide means 15 consist of a cylindrical sleeve 17 having in its inner part a bore 19 which is arranged in the extension of the main channel 8 of the cylindrical body 2.

The cylindrical sleeve 17 includes an elongated cylindrical portion 20 and which slides inside the chamber 14 of the cylindrical body 2, and a shoulder 21 having a greater external diameter e that of the elongate portion 20.

The shoulder 21 of the sleeve 17 has an outer diameter which is identical to the outer cylindrical body 2 to receive the retaining means 16. The shoulder 21 comprises a cylindrical portion 35 of smaller diameter located in the extension of the cylindrical body 2.

The bore 19 of the sleeve 17 has on one hand a first inner diameter d1 slightly larger than the outer stop 13 of the surgical mandrel 9, and secondly a second inner diameter d2 lobed profile, formed mainly in shoulder 21 which is of smaller diameter than that d1, e1 to form an internal shoulder.

The internal diameter d2 is slightly greater than that of the end half-sphere 32 of the surgical mandrel 9.

The lobed profile of the bore 19 at its diameter d2 allows the centering of a lens inside the reusable catheter 1 while allowing the flow of a fluid on the periphery of said optic. The internal shoulder e1 allows to block longitudinally along the axis XX 'of the cylindrical body 2, the movement path of the surgical mandrel 9 when the stopper 13 comes into contact with said internal shoulder e. 16 retaining means are constituted by an expandable ring 23 of small thickness made from a superelastic alloy tube type Ni-Ti.

The expandable ring 23 is divided in its central portion and in a longitudinal direction by a plurality of parallel slots 24, thereby forming thin strips 25 that are educated by heat treatment.

The slats 25 are delimited in length at each end of the expandable ring 23 of cylindrical portions 26 and 27.

The ring 23, of course in the deformed position, opens and closes by pulling at its ends.

The deformed position of the slats 25 allows to form around the cylindrical body 2 a flange 28 forming a support base when the reusable catheter 1 is introduced into the surgical site.

The expandable ring 23 is used to connect the guide means 15 to the cylindrical body 2 of the catheter 1 reusable.

Indeed, the cylindrical portion 26 of the ring 23 is fixed to the outer diameter of the cylindrical body 2, while the portion 27 is fixed to the outer diameter of the shoulder 21 of the sleeve 17.

In Figures 12a to 12d, there is illustrated the various steps of use of the reusable catheter 1 described in Figures 7 to 11 for its insertion into the surgical site.

In the rest position, the reusable catheter 1 includes retaining means 16 deformed so that the slats 25 affect the profile flange 28 around the cylindrical body 2 (Figure 12a).

To enable the establishment of the reusable catheter 1 in the operating site, the surgeon must previously introduce the surgical mandrel 9 inside the channel 8 and the bore 19 until the stop 13 abuts against the e1 shoulder of the bore 19 (Figure 11).

The surgeon then pushes the surgical mandrel 9 for moving the guide means 15, more particularly the cylindrical sleeve 17 along a longitudinal direction carried by the axis XX 'of the body 2 (Figure 12b).

The displacement of the cylindrical sleeve 17 allows to extend the slats 25 of the expandable ring 23 along a direction substantially parallel to the axis XX 'of the cylindrical body 2 to close as possible to the external diameter of said body (Figure 12b).

The surgeon proceeded to lock surgical mandrel 9 inside the cylindrical body 2 to secure the expandable ring 23 in extended position, to introduce the catheter 1 in the reusable surgical site. Locking the surgical mandrel 9 in the cylindrical body 2 is obtained by a bayonet type system not shown.

The surgeon positions the reusable catheter 1 so that the expandable ring 23 is disposed inside the operating site.

Once the reusable catheter 1 is perfectly positioned in the surgical site, the surgeon releases the surgical mandrel 9 and out of the cylindrical body 2 (Figure 12c).

Surgical removal of mandrel 9 allows the expandable ring 23 of naturally resume their profile shaped collar 28, given the characteristics of the superelastic alloy (Figure 12c).

The surgeon may then use the reusable catheter 1 to perform its various tests or operations.

It is noted that the cylindrical body 2 of the reusable catheter 1 can be deformed according to the wishes of the surgeon during the operation (Figure 12d).

In figures 13-18 there is shown a resilient sleeve 33 which comes to cover the cylindrical body 2 of the reusable catheter 1 when it is necessary to make the expandable ring 23 of the retaining means 16, waterproof.

The elastic sleeve 33 includes a thin tube 34 open at each end and made of a material such as silicone or latex or any other similar substance.

The tube 34 has a first open end 36 which is dimensionally stable and whose internal diameter corresponds to that of the outer portion 35 of the shoulder 21 to abut against the latter.

The tube 34 has a second open end 37 provided with a pad 38 slightly deformable for immobilizing the spring sleeve 33 in a stretched position on the cylindrical body 2 of the catheter 1 reusable.

The cylindrical body 2 comprises, near gripping means 4, a shoulder 39 whose conical profile the narrower base faces the side of said grasping means. Thus, the narrowest base of the conical shoulder 39 has an external diameter identical to that of the cylindrical body 2 while the widest base of the cone has a diameter larger than that of said cylindrical body.

The attachment of the elastic sleeve 33 is made when the retaining means 16, and more particularly the expandable ring 23, are arranged in an elongate direction, i.e. when the lamellae 25 are arranged along a direction substantially parallel to that of axis XX 'of the cylindrical body 2.

When the retaining means 16 are in the extended position, the surgeon can cover the cylindrical body 2 of reusable catheter 1 of the elastic sleeve 33.

The implementation of the elastic sleeve 33 is performed when the open end 37 of tube 34 is threaded onto the conical shoulder 39 so that the bead 38 is placed on the cylindrical body 2 between the gripping means 4 and the conical shoulder 38.

A fixing ring 40 is placed around the resilient sleeve 33 at its open end 37, to lock the latter onto the tapered shoulder 39.

Indeed, the ring 40 includes a slot 41 which opens into a central bore 42, provided with an internal bearing surface 43 of conical profile. The ring 40 is disposed so that the conical bearing surface 43 of the bore 42 bears against the conical shoulder 39 to come to block the elastic sleeve 33, around the cylindrical body 2 of the catheter 2 reusable.

It is noted that the elastic sleeve 33 is deformed as soon as the retaining means 16 have a profile in the collar 28, so that they have sealing characteristics when introduced into the surgical site.

It should also be understood that the above description has been given only by way of example and does not limit the scope of the invention which would not depart by replacing the described execution details by any other equivalent.

Claims

1. Reusable catheter for the treatment and diagnosis of infertility transvaginally, comprising a cylindrical body (2) provided with connecting means (3), gripper means (4), at least one internal channel (7, 8) connected to the connection means (3) and retaining means (16) deformed by a surgical couiissement mandrel (9), characterized in that the cylindrical body (2) comprises, opposite the connection means (3) an internal chamber (14) for receiving guide means (15) connected to said body by retaining means (16) which are constituted by an expandable ring (23) divided in its central portion and in a longitudinal direction by a plurality of parallel slots (24) forming a thin (25) to constitute around the cylindrical body (2) a collar
(28) forming a support base when the reusable catheter (1) is introduced into the surgical site.
2. Reusable catheter of claim 1, characterized in that the guide means (15) consist of a cylindrical sleeve (17) having at least one internal bore (18, 19) arranged in the extension of the channel (7, 8) of the cylindrical body (2), and an elongate cylindrical portion (20) sliding inside the chamber (14) and a shoulder (21) having an outer diameter which is identical to that of the outer cylindrical body (2) in order to receive the retaining means (16).
3. Reusable catheter according to claim 2, characterized in that the bore (19) of the sleeve (17) has, on the one hand a first internal diameter (d1) slightly higher than external with a stop (13) integral surgical mandrel (9) and on the other hand a second internal diameter (d2) formed mainly in the shoulder (21) which is of smaller diameter than that (d1) in order to form an internal shoulder (e1).
4. Reusable catheter of claim 1, characterized in that the retaining means (16) are constituted by an expandable ring (23) of small thickness, made from a superelastic alloy tube type Ni-Ti .
5. Reusable catheter according to claim 4, characterized in that the expandable ring (23) is divided in its central portion and a longitudinal direction, by a plurality of parallel slots (24) forming a thin (25) which are educated by treatment thermal.
6. Reusable catheter according to claim 5, characterized in that the lamellae (25) are delimited in length at each end of the expandable ring (23) by cylindrical portions (26, 27) respectively secured to the cylindrical body (2) and the shoulder (21) of the cylindrical sleeve (17).
7. Reusable catheter according to claim 5, characterized in that the ring (23) is naturally in the deformed position so that the lamellae (25) formed around the cylindrical body (2) a collar (28).
8. reusable catheter of claim 1, characterized in that the surgical mandrel (9) consists of a metal rod (11) comprising at one of its ends a head (31) and close to the other tapered profile end (12) a cylindrical stop (13).
9. reusable catheter of claim 1, characterized in that the surgical mandrel (9) consists of a metal rod (11) comprising at one of its ends a head (31) and close to the other the profile end half-sphere (32), a cylindrical stop (13).
10. reusable catheter of claim 1, characterized in that the cylindrical body (2) is made of a rigid stainless steel tube.
11. reusable catheter of claim 1, characterized in that the cylindrical body (2) consists of a flexible tube (29) made of a plastic material around which is provided a metal frame (30) deformable.
12. reusable catheter of claim 1, characterized in that the cylindrical body (2) comprises near the gripping means (4) a shoulder (39) of conical profile whose narrowest base is turned on the side of said means gripping.
13. reusable catheter of claim 12, characterized in that the narrowest base of the conical shoulder (39) has an external diameter identical to that of the cylindrical body (2), while the widest base of the cone has a larger diameter than said cylindrical body.
14. reusable catheter of claim 1, characterized in that the cylindrical body (2) is inserted into an elastic sleeve (33) to make the expandable ring (23) retaining means (16) waterproof.
15. reusable catheter of claim 14, characterized in that the elastic sleeve (33) is composed of a thin tube (34) made of a material such as silicone or latex or any other similar substance.
6. Reusable catheter according to claim 15, characterized in that the tube (34) has a first open end (36) which is dimensionally stable and whose internal diameter corresponds to that of the outer shoulder (21) of the sleeve (17) to abut against the latter, and a second open end (37) provided with a pad (38) slightly deformable for immobilizing the elastic sleeve (33) in the tensioned position on the cylindrical body (2) at the conical shoulder (39) by means of a split ring (40) of complementary profile.
PCT/FR2001/002006 2000-06-26 2001-06-25 Reusable catheter WO2002000286A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0008156A FR2810555B1 (en) 2000-06-26 2000-06-26 reusable catheter
FR00/08156 2000-06-26

Publications (1)

Publication Number Publication Date
WO2002000286A1 true true WO2002000286A1 (en) 2002-01-03

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PCT/FR2001/002006 WO2002000286A1 (en) 2000-06-26 2001-06-25 Reusable catheter

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FR (1) FR2810555B1 (en)
WO (1) WO2002000286A1 (en)

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WO2005013832A1 (en) * 2003-08-07 2005-02-17 Boston Scientific Limited Medical closure device
US6929621B2 (en) 2002-10-02 2005-08-16 Civco Medical Instruments Co., Inc. Drainage catheter with bifurcating tip
WO2006002261A2 (en) * 2004-06-22 2006-01-05 Boston Scientific Limited Medical device including actuator
EP2050404A1 (en) * 2007-10-17 2009-04-22 Tyco Healthcare Group LP Anchoring Cannula
US7766875B2 (en) 2007-09-28 2010-08-03 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US8147480B2 (en) 2007-09-28 2012-04-03 Codman & Shurtleff, Inc. Catheter for reduced reflux in targeted tissue delivery of a therapeutic agent
US8152775B2 (en) 2007-10-17 2012-04-10 Tyco Healthcare Group Lp Access port using shape altering anchor
US8206291B2 (en) 2009-03-27 2012-06-26 Tyco Healthcare Group Lp Portal device
US8323316B2 (en) 2008-10-09 2012-12-04 Covidien Lp Knotted suture end effector
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US8932329B2 (en) 2008-02-20 2015-01-13 Covidien Lp Compound barb medical device and method
US8888810B2 (en) 2008-02-20 2014-11-18 Covidien Lp Compound barb medical device and method
US8323316B2 (en) 2008-10-09 2012-12-04 Covidien Lp Knotted suture end effector
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FR2810555A1 (en) 2001-12-28 application

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