Sheath device for inserting a catheter

• US 10,525,238 B2
• Filed: 03/30/2017
• Issued: 01/07/2020
• Est. Priority Date: 12/22/2011
• Status: Active Grant

• Current Assignee: ECP Entwicklungsgesellschaft mbH (Johnson & Johnson)
• Original Assignee: ECP Entwicklungsgesellschaft mbH (Johnson & Johnson)
• Inventors: Schumacher, Joerg, Bredenbreuker, Lars, Decke, Robert
• Primary Examiner(s): Stransky, Katrina M
• Application Number:
  US15/474,592
• Publication Number:
  US 20170203081A1
• Time in Patent Office: 1,013 Days
• CPC Class Codes: A61B 2017/00469 for insertion of instruments, e.g. guide wire, optical fibre
• CPC Class Codes: A61M 2025/0188 having slitted or breakaway lumens
• CPC Class Codes: A61M 2025/0675 Introducing-sheath slitters
• CPC Class Codes: A61M 2025/0681 Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• CPC Class Codes: A61M 2039/0258 for vascular access, e.g. blood stream access
• CPC Class Codes: A61M 2039/0279 for introducing medical instruments into the body, e.g. endoscope, surgical tools
• CPC Class Codes: A61M 2039/062 used with a catheter
• CPC Class Codes: A61M 2039/0626 used with other surgical instruments, e.g. endoscope, trocar
• CPC Class Codes: A61M 2039/0673 comprising means actively pressing on the device passing through the seal, e.g. inflatable seals, diaphragms, clamps
• CPC Class Codes: A61M 2207/00 Methods of manufacture, assembly or production
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/01 Introducing, guiding, advancing, emplacing or holding catheters A61M25/10 takes precedence
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61M 25/0668 splittable, tear apart
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053
• CPC Class Codes: A61M 39/06 Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
• CPC Class Codes: A61M 60/13 by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/178 drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
• CPC Class Codes: A61M 60/216 including a rotating member acting on the blood, e.g. impeller
• CPC Class Codes: A61M 60/414 : transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter
• CPC Class Codes: A61M 60/865 : Devices for guiding or inserting pumps or pumping devices into the patient's body

Abstract

In a sheath device for inserting a catheter into a patient'"'"'s body, comprising a first sheath (10, 11, 13, 21, 21′, 21″, 41, 43) having a proximal end and a distal end, wherein when used as intended the distal end of the first sheath is provided for arrangement in the patient'"'"'s body and the proximal end of the first sheath is provided for arrangement outside the patient'"'"'s body, and wherein the first sheath comprises a tubular section (11, 21, 21′, 21″, 41) and a sheath housing (13, 43), which is disposed at the proximal end of the section and comprises a receiving channel (46) for a catheter, according to the invention the tubular section (11, 21, 21′, 21″, 41) is detachably held in a clamping element (45, 48, 50, 62, 63, 64) of the sheath housing in a non-positive manner so as to be able to easily shorten the tubular section.

Claims

1. An introducer sheath device comprising:

a sheath housing;

a sheath located within the sheath housing and configured to move in a longitudinal direction relative to the sheath housing, the sheath configured to allow passage of a catheter therein; and

a cutting device comprising;

a first blade moveably positioned between the sheath and the sheath housing; and

a handle located outside of the sheath housing and coupled to the first blade;

wherein the handle actuates a movement of the first blade to move the first blade radially toward a center of the sheath housing, wherein the first blade is configured to cut the sheath as the first blade moves in the longitudinal direction relative to the sheath housing.

2. The sheath device of claim 1, the cutting device further comprising a second blade, the second blade positioned opposite the first blade within the sheath housing.

3. The sheath device of claim 1, wherein the cutting device further comprises a stopper configured to restrict the radial movement of the first blade to a certain dimension.

4. The sheath device of claim 3, wherein the stopper is configured to prevent damage to the catheter when the catheter is present inside the sheath.

5. The sheath device of claim 1, wherein the first blade perforates the sheath in an axial direction.

6. The sheath device of claim 1, wherein the first blade perforates the sheath in a circumferential direction.

7. The sheath device of claim 1, wherein the first blade perforates the sheath in a helical direction.

8. The sheath device of claim 1, wherein the first blade is ceramic.

9. The sheath device of claim 1, wherein the first blade is needle-shaped.

10. The sheath device of claim 1, wherein the first blade severs a sheath held in a position in the sheath housing.

11. The sheath device of claim 10, wherein the sheath housing includes a clamp configured to releasably hold the sheath within the sheath housing.

12. The sheath device of claim 11, wherein the clamp comprises a hemostatic valve.

13. The sheath device of claim 1, wherein the sheath housing includes a flushing space formed between an interior wall of the sheath housing and the sheath, the space configured to allow flushing of a liquid through the sheath housing.

14. The sheath device of claim 1, wherein the sheath housing includes a seal at a coupling where the handle enters the sheath housing.

15. The sheath device of claim 1, wherein the sheath is configured to move in a circumferential direction relative to the sheath housing, and

wherein the first blade is configured to cut the sheath as the first blade moves in the circumferential direction relative to the sheath housing.

16. A method of using a sheath cutter device;

the method comprising;

inserting a sheath into a sheath housing;

the sheath housing including a clamp configured to releasably clamp the sheath in a position within the sheath housing, and the sheath housing further including a first blade positioned between the sheath and the sheath housing;

actuating a movement of the first blade within the sheath housing by a handle located outside the sheath housing, wherein the movement of first blade is in a radial direction toward a center of the sheath housing, and the movement of the first blade is configured to cut the sheath; and

cutting the sheath with the first blade.

17. The method of claim 16, wherein the movement of the first blade toward the center of the sheath housing is restricted by a stopping element.

18. The method of claim 16, wherein the first blade perforates the sheath.

19. The method of claim 18, wherein the first blade is configured to perforate the sheath concurrently with a movement of the sheath within the sheath housing.

20. The method of claim 16, wherein the first blade severs the sheath.

21. The method of claim 20, further comprising removing a severed portion of the sheath.

22. The method of claim 21, further comprising:

clamping the sheath in a position in the sheath housing before actuating the movement of the first blade; and

releasing the clamped sheath after removing the severed portion of the sheath.