Damage preventing endoscope head cover

• US 5,415,157 A
• Filed: 02/05/1993
• Issued: 05/16/1995
• Est. Priority Date: 02/05/1993
• Status: Expired due to Fees

• Current Assignee: Steven Welcome
• Original Assignee: Steven Welcome
• Inventors: Welcome, Steven
• Primary Examiner(s): Apley, Richard J.
• Assistant Examiner(s): FLANAGAN, BEVERLY MEINDL
• Application Number:
  US08/013,868
• Time in Patent Office: 830 Days
• Field of Search: 206/571, 206/316.1, 206/446, 206/521, 206/522, 206/585, 206/587, 206/588, 206/591, 206/592, 206/594, 206/303, 206/305, 206/306, 206/363, 206/364, 206/370, 206/438, 128/4, 606/1, 604/263, 604/163, 134/201, 138/110
• US Class Current: 600/121
• CPC Class Codes: A61B 46/10 specially adapted for instruments, e.g. microscopes

Abstract

A surgical endoscope head is protected against damage from impact during non-surgical handling and disinfecting procedures by inserting the head into a protective sleeve. The sleeve has sufficient rigidity to resist deformation from impact experienced during handling. The inserted head is spaced from the sleeve interior to permit free flow of disinfectant liquid about the head periphery. Additional protection may be provided by a sheath disposed concentrically within the sleeve and adapted to receive the protected endoscope head while providing for free flow of liquid around and along the head. The endoscope head is preferably gripped resiliently at the proximal end of the sleeve without blocking liquid flow through the open proximal end.

Claims

1. A protective cover for protecting a surgical endoscope head when not in use comprising:

an elongated protective sleeve having a hollow interior, an open proximal end and an open distal end;

at least one gripping device for selectively positionally securing the endoscope head relative to said sleeve with said endoscope head inserted within said hollow interior of said sleeve through said proximal end and recessed from said distal end; and

a flow passage for freely conducting disinfectant fluid in contact with said endoscope head when inserted into said sleeve and gripped by said gripping device;

wherein said sleeve is sufficiently rigid to retain its elongated shape without additional support and to resist deformation and bending.

2. The protective cover of claim 1 wherein said gripping device includes first and second opposed gripping members extending generally radially inward of said sleeve to define a gripping space therebetween at a location adjacent said proximal end, said gripping device being more resilient than said sleeve to permit selective enlargement of said gripping space, wherein said gripping members have an unstressed position in which the distance between the gripping members is shorter than the thickness of said endoscope head.

3. The protective cover of claim 2 wherein said gripping device is a generally cylindrical elastomeric member secured coaxially to the end of said sleeve, and wherein each of said gripping members includes a plurality of longitudinally sequential gripping ribs extending radially inward from said opposite sides of said device.

4. A protective cover for a surgical endoscope head comprising:

an elongated protective sleeve having a hollow interior, an open proximal end and a distal end;

at least one gripping device for selectively positionally securing the endoscope head relative to said sleeve with said endoscope head inserted within said hollow interior of said sleeve through the proximal end; and

a flow passage for freely conducting fluid along said endoscope head when inserted into said sleeve and gripped by said gripping device;

wherein said sleeve is sufficiently rigid to retain its elongated shape without additional support and to resist deformation and bending upon impact against a hard surface;

wherein said gripping device includes first and second opposed gripping members extending generally radially inward of said sleeve to define a gripping space therebetween at a location adjacent said proximal end, said gripping device being more resilient than said sleeve to permit selective enlargement of said gripping space, wherein said gripping members have an unstressed position in which the distance between the gripping members is shorter than the thickness of said endoscope head;

wherein said gripping device is a generally cylindrical elastomeric member secured coaxially to the end of said sleeve, and wherein each of said gripping members includes a plurality of longitudinally sequential gripping ribs extending radially inward from said opposite sides of said device;

wherein said sleeve has a generally oval transverse cross section tapering in size from said proximal end to said distal end, and wherein said gripping device has an interior surface defining an oval with a minor diameter smaller than the diameter of the protected endoscope head.

5. A protective cover for a surgical endoscope head comprising:

an elongated protective sleeve having a hollow interior, an open proximal end and a distal end;

at least one gripping device for selectively positionally securing the endoscope head relative to said sleeve with said endoscope head inserted within said hollow interior of said sleeve through the proximal end; and

a flow passage for freely conducting fluid along said endoscope head when inserted into said sleeve and gripped by said gripping device;

wherein said sleeve is sufficiently rigid to retain its elongated shape without additional support and to resist deformation and bending upon impact against a hard surface; and

an inner sheath disposed within said sleeve for receiving the endoscope head, said inner sheath having a distal end and a proximal end secured to said sleeve, and an elongated hollow body extending longitudinally in said sleeve and in spaced relation relative to said sleeve, wherein said distal end of said sheath is disposed within said sleeve proximally of the distal end of said sleeve.

6. The protective cover of claim 5 wherein said sheath has multiple openings defined therein to permit liquid to flow freely into and out of said sheath.

7. The protective cover of claim 6 wherein both said distal end of said sheath and said distal end of said sleeve are open.

8. The protective cover of claim 7 wherein said sheath is selectively removable from and insertable into said sleeve.

9. The protective cover of claim 8 wherein said gripping device is secured to the proximal end of said sheath and has an interior surface defining an oval with a minor diameter smaller than the diameter of the protected endoscope head, and wherein the gripping device is selectively compressible along a major diameter of said oval to effect selective expansion of said minor diameter and thereby permit insertion and removal of the endoscope head.

10. The protective cover of claim 7 further comprising at least one shock absorber disposed on said sheath to cushion impact between said sheath and said sleeve.

11. In combination:

a surgical endoscope having a head with a generally cylindrical periphery and containing impact-vulnerable components;

an elongated protective sleeve having a hollow interior with a transverse cross section larger than said endoscope head, an open proximal end and a distal end;

at least one gripping device for selectively positionally securing said endoscope head within said sleeve with said endoscope head extending into said hollow interior of said sleeve through said proximal end; and

a flow passage for freely conducting disinfectant liquid in said sleeve in contact with the periphery of said endoscope head;

wherein said sleeve is sufficiently rigid to retain its elongated shape without additional support and to resist deformation and bending upon impact against a hard surface.

12. The protective cover of claim 11 wherein said gripping device includes first and second opposed gripping members extending generally radially inward of said sleeve to define a gripping space therebetween at a location adjacent said proximal end, said gripping device being more resilient than said sleeve to permit selective enlargement of said gripping space, wherein said gripping members have an unstressed position in which the distance between the gripping members is shorter than the thickness of said endoscope head.

13. The endoscope head of claim 12 wherein said gripping device is a generally cylindrical elastomeric member secured coaxially to the proximal end of said sleeve, and wherein each of said gripping members includes a plurality of longitudinally sequential gripping ribs extending radially inward from opposite sides of said member;

and

wherein said gripping device has an interior surface defining an oval with a minor diameter smaller than the diameter of the protected endoscope head.

14. The combination of claim 11 further comprising:

an inner sheath disposed within said sleeve for receiving the endoscope head, said inner sheath having a distal end and a proximal end secured to said sleeve, and an elongated hollow body extending longitudinally in, and in spaced relation relative to, said sleeve, wherein said distal end of said sheath is disposed within said sleeve proximally of the distal end of said sleeve.

15. The combination of claim 14 wherein said sheath has multiple openings defined therein to permit liquid to flow freely into and out of said sheath.

16. The protective cover of claim 15 wherein said sheath is selectively removable from and insertable into said sleeve.

17. The protective cover of claim 15 further comprising at least one shock absorber disposed on said sheath to cushion impact between said sheath and said sleeve.

18. A method of protecting a surgical endoscope head when not in use from damage due to impact comprising the steps of:

(a) inserting the endoscope head longitudinally into a protective sleeve having open proximal and distal ends and sufficient rigidity to absorb impact without becoming deformed when dropped onto or colliding with a hard surface, the distal end of the inserted endoscope head being proximally spaced from the distal end of the protective sleeve;

(b) gripping the inserted endoscope head to retain the head in a longitudinally fixed position within said sleeve; and

(c) permitting free flow of disinfectant liquid within said sleeve along the periphery of said inserted endoscope head.

19. The method of claim 18 wherein step (b) includes resiliently engaging the periphery of said endoscope head only at a single location adjacent the proximal end of said sleeve.

20. A method of protecting a surgical endoscope head from damage due to impact comprising the steps of:

(a) inserting the endoscope head longitudinally into a protected sleeve having sufficient rigidity to absorb impact without becoming deformed when dropped onto or colliding with a hard surface;

(b) gripping the inserted endoscope head to retain the head in a longitudinally fixed position within said sleeve; and

(c) permitting free flow of liquid within said sleeve along the periphery of said inserted endoscope head;

wherein step (a) includes inserting said endoscope head into a sheath disposed substantially concentrically within said sleeve such that the inserted portion of the endoscope head is spaced from the sheath interior surface, and such that the sheath exterior surface is spaced from the sleeve interior surface.