Tip protector sleeve

• US 9,138,343 B2
• Filed: 05/31/2011
• Issued: 09/22/2015
• Est. Priority Date: 05/31/2011
• Status: Expired due to Fees

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Bayer Healthcare LLC (Bayer AG)
• Inventors: Stout, Christopher A., Swann, Betsy, Cruzada, Julian, Sepe, Chris
• Primary Examiner(s): Mehta, Bhisma
• Assistant Examiner(s): Thomas, Jr., Bradley G
• Application Number:
  US13/149,631
• Publication Number:
  US 20120310215A1
• Time in Patent Office: 1,575 Days
• Field of Search: 604/528, 604/95.01, 604/263, 604/264, 604/158, 604162-163, 604/164.01, 604/164.08, 600/101, 600/104, 128/830, 128/831, 128/840
• US Class Current: 1/1
• CPC Class Codes: A61B 17/42 Gynaecological or obstetrical instruments or methods ligaturing clamps or clips for the umbilical cord A61B17/122; curettage A61B17/320708; dilators A61M29/00
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/4233 Operations on Fallopian tubes, e.g. sterilization A61B2017/1125 takes precedence
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61F 6/18 Inserters or removers ; Apparatus for loading an intra-uterine device into an insertion tube
• CPC Class Codes: A61F 6/225 transcervical
• CPC Class Codes: F04C 2270/041 Controlled or regulated
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49828 Progressively advancing of work assembly station or assembled portion of work
• CPC Class Codes: Y10T 29/49917 by necking in cup or tube wall

Abstract

Assemblies and methods of inserting a delivery catheter assembly into a working channel are disclosed. In accordance with some embodiments, a delivery catheter assembly is disclosed in which a tip protector sleeve is locked onto an elongated catheter sheath and slideable over a length of the elongated catheter sheath between a proximal-stop position and a distal-stop position along the elongated catheter sheath.

Claims

1. A delivery catheter assembly comprising:

a control device;

an elongated catheter sheath having a distal end and a proximal end connected to the control device;

a tip protector sleeve locked onto the elongated catheter sheath and slideable over a length of the elongated catheter sheath between a proximal-stop position and a distal-stop position along the elongated catheter sheath while locked onto the elongated catheter sheath; and

an interference stop comprising a male interference part fixed to the elongated catheter sheath at a first distance from the distal end of the elongated sheath, and a female interference part;

wherein the male interference part interferes with sliding of the female interference part over the elongated sheath such that the interference stop determines the distal-stop position and prevents the tip protector sleeve from sliding off of the distal end of the elongated catheter sheath, and the tip protector sleeve is longer than the first distance such that the tip protector sleeve extends distally beyond the distal end of the elongated catheter sheath when at the distal-stop position.

2. The delivery catheter assembly of claim 1, wherein the tip protector sleeve comprises an elongated shaft and a backstop together functioning as the female interference part.

3. The delivery catheter assembly of claim 2, wherein the male interference part comprises a bump fixed to the elongated catheter sheath.

4. The delivery catheter assembly of claim 3, wherein the bump comprises a band fixed to and encircling the elongated catheter sheath.

5. The delivery catheter assembly of claim 4, wherein a distal end of the band is crimped onto the elongated catheter sheath, and a proximal end of the band is not crimped onto the elongated shaft.

6. The delivery catheter assembly of claim 2, wherein the backstop has an inside diameter which is smaller than an outside diameter of the male interference part.

7. The delivery catheter assembly of claim 6, further comprising a molded bead fixed to a proximal end of the elongated shaft.

8. The delivery catheter of claim 7, wherein the molded bead comprises:

a distal portion surrounding the proximal end of the elongated shaft;

a shoulder portion extending proximally of the elongated shaft; and

the backstop, wherein the backstop abuts the proximal end of the elongated shaft.

9. The delivery catheter assembly of claim 6, wherein the tip protector sleeve further comprises an inner shaft fixed to a proximal end of the elongated shaft, and the backstop is a distal end of the inner shaft.

10. The delivery catheter assembly of claim 1, further comprising an insert disposed within and extending distally beyond the distal end of the elongated catheter sheath, wherein the tip protector sleeve extends distally beyond the insert when at the distal-stop position.

11. The delivery catheter assembly of claim 1, wherein the tip protector sleeve further comprises a sealing valve.