Source: https://patents.google.com/patent/DE60307726T2/en
Timestamp: 2019-12-15 08:20:07
Document Index: 223854392

Matched Legal Cases: ['art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 3', 'art 7', 'art 3', 'art 7', 'art 7', 'art 7', 'art 9', 'art 11', 'art 9', 'art 13', 'art 3', 'art 13', 'art 13', 'art 13', 'art 13', 'art 3', 'art 11', 'art 9', 'art 3', 'art 13', 'art 13', 'art 3']

DE60307726T2 - Verweilkatheteranordnung - Google Patents
DE60307726T2
DE60307726T2 DE2003607726 DE60307726T DE60307726T2 DE 60307726 T2 DE60307726 T2 DE 60307726T2 DE 2003607726 DE2003607726 DE 2003607726 DE 60307726 T DE60307726 T DE 60307726T DE 60307726 T2 DE60307726 T2 DE 60307726T2
DE2003607726
DE60307726D1 (en
2002-06-26 Priority to JP2002186561 priority Critical
2002-06-26 Priority to JP2002186561A priority patent/JP3808806B2/en
2006-10-05 Publication of DE60307726D1 publication Critical patent/DE60307726D1/en
2007-08-30 Publication of DE60307726T2 publication Critical patent/DE60307726T2/en
The The present invention relates to a permanent catheter set for transfusions, that for Dialysis treatments, liquid infusions, Blood infusions and the like is used, in particular a permanent catheter set, by the leakage of blood in any phase of the transfusion is prevented, for example when inserting the catheter set in the body of the patient and the Connect the syringe to a blood infusion line, and insert one safe withdrawal of the needle from the body of the patient allows.
The Japanese Patent Publication the tested Application No. H3-70502 discloses the relevant prior art of the permanent catheter set. The application is about a permanent catheter set with a hemostatic Adapter which is removably attached to the catheter. The hemostatic Adapter has one Variety of seals, which are arranged separately and each in the form of a cylinder with soil. Will the catheter from the associated Pulled needle, prevent multiple seals the leakage of blood.
EP-A-1 101 508 discloses a haemostatic Valve at the rear end of the catheter, which forms a check valve and the Adhere dilator within the valve by a peripheral seal, wherein the valve body from two valve halves in tandem design and by fixative or possibly held together by nuts.
WO-99 26682 refers to an intravascular catheter system to which an introducer sheath and an adjustable sleeve extension belong, that can be used in magnetic resonance method.
US-A-S 454 790 shows an assembly comprising an elastic hose a proximal end, a distal end and a central lumen, extending from the proximal end to the distal end. Of the Tube has an intrinsic length and an intrinsic outer diameter if it is not restricted under axial or radial compression, and its distal end is at one within the central lumen removable guide rod coupled.
EP-A-0 747 084 provides a catheter assembly with interlocking sequential ordered protective members, the "fail-safe" pulling out a used cannula in one protected environment guarantee.
Becomes the catheter of the permanent catheter set of the above-mentioned state the technique, for example, with the connector of an infusion line of a auxiliary device connected is as follows proceed. First, the catheter is ligated, then the hemostatic Adapter removed from the catheter, and finally the connector with the Catheter connected. There is the problem that during this process, that often in the Catheter accumulated blood escapes, which is why the extra Uptake of the blood with gauze or absorbent cotton wool required is.
The The present invention has been made in view of the above-described Problem developed.
Corresponding A first aspect of the present invention is a permanent catheter set with a catheter, one at a proximal end of the catheter attached cap and a connector with an embedded therein hemostatic Provided valve. The connector is attached to the cap.
Corresponding A second aspect of the present invention is a permanent catheter set with a catheter and a compression tube with a first and a second end, wherein the first end at a proximal End of the catheter is attached and attached to the second end of a connector is.
Preferably The indwelling catheter set is also removable with an adapter the connector is attached, equipped. The adapter has a second hemostasis Valve.
Preferably the permanent catheter set is also provided with a hollow needle, which is slidingly fit into the inside of the catheter, a needle cap attached to the proximal end of the needle is, and a telescopic tube with safety cover. The telescopic tube is embedded in the needle cap for extension. The needle cap is designed to connect to the connector. The safety cover covers a distal end of the hollow needle when the telescopic tube fully extended is.
1 FIG. 13 is an exploded perspective view of a permanent catheter set according to a first embodiment of the present invention. FIG.
2A FIG. 11 is a perspective view of a safety cover and an inner needle housed therein according to a first embodiment of the present invention. FIG.
2 B is a perspective view of the safety cover and the inner needle when the inner needle is exposed.
3 is a sectional view of the safety cover and the inner needle.
4 Figure 3 is a perspective view of the indwelling catheter set prior to use.
5 is a sectional view of a catheter, a cap and a connector according to a second embodiment of the present invention.
Hereinafter, referring to 1 to 4 A first embodiment of the present invention is described.
A permanent catheter set 1 is, similar to a conventional permanent catheter set, with a catheter 3 Mistake. The catheter 3 is tubular and has a proximal part 3A with a larger diameter, a distal part 3B with a smaller diameter and a conical part, which is the proximal part 3A and the distal part 3B combines. The distal part 3B is relatively long and at its distal end is a plurality of openings 3C directed in the vertical direction to the axial direction of the catheter 3 are permeated. The catheter 3 is in an engagement hole 7A a cap 7 with a pair of wings 5 used, and the proximal part 3A is firmly on the cap 7 attached, in such a way that the distal part 3B out of the engagement hole 7A protrudes.
The cap 7 has a connection part 7B which is tubular and for attachment of the proximal part 3A of the catheter 3 serves. The connecting part 7B is with a flap part 7C which is semicircular and includes a proximal end halfway. A distal end of the connector 9 in tube form, in which the connecting part 7B slidably inserted, has a semicircular engaging part 9A to get into the flap section 7C to intervene and prevent him from turning. The connector 9 houses a haemostatic valve 10 and further has a screw thread part on its outer periphery 9B ,
The hemostatic valve 10 consists of elastic materials such as silicone rubber or natural rubber. The hemostasis valve is in the shape of a disc or a cylinder with a bottom and has at its center a valve port (not shown) which facilitates the insertion and withdrawal of an internal needle 13 and a connector of a blood infusion line (not shown). The valve opening is forced to a closed position in the stationary state and is opened when the inner needle or the connector of the blood infusion line is inserted.
A hemostatic adapter 11 with a female thread part 11A in its inner circumference is removable with the screw thread part 9B of the connector 9 screwed. The hemostatic adapter 11 houses another haemostatic valve (not shown), which consists of several seals (not shown), which in their construction essentially correspond to the state of the art.
Before use is a sharp part 13A the inner needle 13 from the distal part 3A of the catheter 3 and a proximal part of the inner needle 13 is on a cylindrical holder 15A attached, located at the axial center of a needle cap 15 located. A first pipe 17 of the telescopic tube is movable in the needle cap 15 used. A second pipe 21 of the telescopic tube with a long tubular safety cover 19 at a distal end that covers the pointed part 13A the inner needle 13 serves, is movable in the first tube 17 used.
The telescopic tube, consisting of the first tube 17 and the second tube 21 , is located before use as in 2 B shown in a needle cap 15 and is out of the needle cap after use 15 and is extended as in 2A shown so that the safety cover 19 the pointed part 13A the inner needle 13 covered. Consequently, when disposing of the inner needle 13 and the like ensures safety.
At the outer periphery of a proximal end of the first tube 17 is a flexible flap 17A formed on the inner circumference of a distal end of the needle cap 15 for locking by a trained as a groove flap portion 15B serves as in 3 shown. This will be the sharpest part 13A the inner needle 13 through the security cover 19 continues to be covered as described above.
Similarly, on the outer periphery of a proximal end of the second tube 21 a flexible flap 21A formed on the inner circumference of a distal end of the first tube 17 for locking by a flap part (not shown) is used.
Therefore, it is difficult that from the first and the second tube 17 and 21 existing telescopic tube in the needle cap 15 to push when it is extended.
That means the pointed part 13A the inner needle 13 through the security cover 19 remains covered and the security is ensured.
The catheter 3 gets into the engagement hole 7A the cap 7 inserted so that the proximal part 3A of the catheter 3 stuck with the engagement hole 7A connected is. Furthermore, there is the hemostasis valve 10 in the connector 9 , and the connector 9 is for mounting in the connector 7B the cap 7 fitted. Finally, the female thread part 11A the hemostatic adapter 11 with the screw thread part 9B of the connector 9 screwed.
A needle unit 23 includes the inner needle 13 , the telescopic tube and the needle cap 15 , If the telescopic tube as in 2 B shown in the needle cap 15 is serviced and the needle unit 23 in the hemostatic adapter 11 is used, so that the needle cap 15 to the hemostatic adapter 11 abuts, the sharp part is 13A the inner needle 13 slightly from a distal end of the catheter 3 like in 4 shown. At the in 4 The condition shown prior to the use of a permanent catheter unit 25 ,
Will the permanent catheter unit 25 assembled as described above, a distal end of the safety cover 19 in the proximal part 3A of the catheter 3 placed, and a distal end of the second tube 21 becomes relatively tight in an engagement hole 11B at the proximal end of the hemostatic adapter 11 is formed, fitted.
After inserting the inner needle 13 into a patient's vein is the needle cap 15 subtracted so that the inner needle 13 is pulled out of the catheter. At the same time the telescopic tube 17 . 21 from the needle cap 15 extended. After the inner needle 13 completely out of the catheter 3 pulled, covers the safety cover 19 completely the pointed part 13A the inner needle 13 which ensures safety.
While pulling the inner needle 13 Even if this happens obliquely, the inner needle becomes 13 faultless and even through the hemostatic valve 10 and another haemostatic valve of the hemostatic adapter 11 because the haemostatic valves are arranged coaxially and separately.
If some blood passes through the hemostatic valve 10 exit, because the inner needle 13 is pulled out obliquely, prevents the hemostatic adapter 11 in addition, the further leakage of blood. After pulling out the inner needle 13 the hemostatic valve is closed elastically to prevent leakage.
After pulling out the inner needle 13 becomes the hemostatic adapter 11 from the connector 9 away. When the connector of the auxiliary device (not shown) is inserted and on the catheter 3 through the haemostatic valve 10 is attached or on the connector 9 attached, the hemostatic valve provides 10 the tightness. This allows the connector of the auxiliary device easily with the catheter 3 get connected.
As is apparent from the above description, the connector of the auxiliary device can be easily connected to the catheter 3 be connected without the catheter 3 and similar treatment methods according to the present embodiment. In addition, the inner needle 13 safely out of the catheter 3 be pulled, and the pointed part 13A the inner needle 13 will automatically through the security cover 19 without treatment with the telescopic tube 17 . 21 covered.
In 5 a second embodiment of the present invention is shown. In the second embodiment, instead of the connector 9 a hose 27 made of a soft material, such as silicone rubber, with the proximal part 3A of the catheter 3 or the cap 7 connected. A connector 9 ' that is a haemostatic valve 10 housed and the connector 9 similar to the first embodiment is with the hose 27 connected.
The indwelling catheter set of the second embodiment has the same effect as the first embodiment, and moreover, the leakage of blood by the squeezing of the tube 27 prevented. This additionally prevents the escape of blood.
Even though the invention above with respect to certain embodiments of the invention has been described, the invention is not limited to these Embodiments described above limited. amendments and deviations from the embodiments described above will be considered by those skilled in the art the above explanations. For example, changes can be made in shape or design occur, unless these changes go across the above presentation.
Permanent catheter set comprising: a catheter ( 3 ), - a cap ( 7 ) and - a connector ( 9 . 9 ' ), where - the cap ( 7 ) an engagement hole ( 7A ), - the catheter has a distal part ( 3B ) and a proximal part ( 3A ), wherein the catheter can be inserted through the engagement hole such that the proximal part in the cap ( 7 ) and the distal part ( 3B ) from the cap ( 7 ), - the connector is a first haemostatic valve ( 10 ) and with the cap ( 7 ) is connectable such that the connecting piece is attached to the cap, characterized in that - an adapter ( 11 ) is provided and - that the adapter ( 11 ) a second haemostatic valve housed and removable at the connector ( 9 ) can be attached.
The permanent catheter set according to claim 1, wherein the hemostatic valve ( 10 ) and the second hemostatic valve are arranged coaxially and separately to guide means for guiding a needle ( 13 ) to build.
A permanent catheter set according to claim 1 or 2, further comprising a tube ( 27 ) for connecting the connector ( 9 ' ) with the proximal end ( 3A ) of the catheter ( 3 ) or with the cap ( 7 ).
A permanent catheter set according to claim 3, wherein the tube ( 27 ) is made of soft material, in particular silicone rubber.
A permanent catheter set according to any one of claims 1 to 4, further comprising - a hollow needle ( 13 ) with a proximal end and a distal end, - a needle cap ( 15 ), - a telescopic tube whereby - the hollow needle slidably into the inside of the catheter ( 3 ), - the needle cap ( 15 ) with the proximal end of the needle ( 13 ) and - the telescopic tube comprises - a first tube ( 17 ), which is movable into the needle cap ( 15 ), - a second tube ( 21 ) movable in the first tube ( 17 ), and - a safety cover ( 19 ), which at a distal end of the second tube ( 21 ) is attached to cover the distal end of the needle ( 13 ) when the telescopic tube is fully extended.
A permanent catheter set according to claim 5, wherein a flexible tab ( 17A . 21A ) on the outer periphery of a proximal end of the first tube ( 17 ) or the second tube ( 21 ) is trained.
A permanent catheter set according to any one of claims 1 to 6, wherein the cap ( 7 ) also a wing ( 5 ) for handling and fixing the cap ( 7 ).
The permanent catheter set according to one of claims 1 to 7, wherein the cap ( 7 ) further comprises a flap part ( 7C ) and the connecting piece ( 9 . 9 ' ) further an engaging part ( 9A ) to engage in the flap portion ( 7C ) intervene.
DE2003607726 2002-06-26 2003-06-24 Verweilkatheteranordnung Active DE60307726T2 (en)
DE60307726D1 DE60307726D1 (en) 2006-10-05
DE60307726T2 true DE60307726T2 (en) 2007-08-30
DE2003607726 Active DE60307726T2 (en) 2002-06-26 2003-06-24 Verweilkatheteranordnung
WO2015115316A1 (en) 2014-01-29 2015-08-06 テルモ株式会社 Catheter assembly
CA2982335A1 (en) * 2015-04-14 2016-10-20 Noble House Group Pty. Ltd. Medical quiver