Medical body access device
First Claim
1. A medical device for retraction, comprising:
- a) a head comprising;
a first head half, a second head half, the first head half and the second head half comprising a substantially transparent polymeric material defining a substantially conical surface, each said head half comprising a longitudinal receding edge, wherein said edge of said first head half make partial contact with said edge of said second head half when said first and second head halves are contacting one another, thus defining a gap near a base of the head between said first and second head halves when said device is in a closed position; and
b) a handle comprising a substantially transparent polymeric material and coupled to said head, actuation of said handle causing motion of said first head half and second head half relative to a longitudinal plane, said gap being located along the longitudinal plane on an upper side of said head.
3 Assignments
0 Petitions
Accused Products
Abstract
A medical device for retracting tissue allows access to the inside of the body by “prying open” an existing or created opening in a body. The device comprises a substantially transparent head having first and second head halves defining a substantially conical surface including a gap when the first and second head halves are joined. Angular motion of the first and second head halves enlarges the existing or created opening and provides an area of access to the inside of the body. The substantially transparent nature of the device allows it to function as a light pipe so that the operator can see the body cavity or tract opened by the device. The device has scissors-like handles to allow an operator to open or close the device with one hand.
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Citations
43 Claims
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1. A medical device for retraction, comprising:
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a) a head comprising;
a first head half, a second head half, the first head half and the second head half comprising a substantially transparent polymeric material defining a substantially conical surface, each said head half comprising a longitudinal receding edge, wherein said edge of said first head half make partial contact with said edge of said second head half when said first and second head halves are contacting one another, thus defining a gap near a base of the head between said first and second head halves when said device is in a closed position; and
b) a handle comprising a substantially transparent polymeric material and coupled to said head, actuation of said handle causing motion of said first head half and second head half relative to a longitudinal plane, said gap being located along the longitudinal plane on an upper side of said head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A medical device for retraction, comprising:
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a) a head comprising;
a first head half, a second head half, the first head half and the second head half defining a substantially conical surface;
each said head half comprising a longitudinal receding edge defining a gap when said first and second head halves are contacting one another; and
b) a handle coupled to said head, actuation of said handle causing motion of said first head half and second head half relative to a longitudinal plane, and at least one of said first and second handle portions including a socket for accepting a light source disposed near said substantially conical surface and offset from a longitudinal axis defined by the said first head half and second head half. - View Dependent Claims (27)
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28. A medical device for retraction, comprising:
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a) a head comprising;
a first head half, a second head half, the first head half and the second head half defining a substantially conical surface;
each said head half comprising a longitudinal receding edge defining a gap when said first and second head halves are contacting one another; and
, at least one of said head halves further comprising one or more sockets, said socket receives one or more light-transmitting cables; and
b) a handle coupled to said head, actuation of said handle causing motion of said first head half and second head half relative to a longitudinal plane.
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29. A medical device for retraction, comprising:
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a) a head comprising;
a first head half, a second head half, the first head half and the second head half defining a substantially conical surface;
each said head half comprising a longitudinal receding edge defining a gap when said first and second head halves are contacting one another; and
b) a handle coupled to said head, said handle comprising a first handle portion and a second handle portion, said first handle portion coupled to said first head half and said second handle portion coupled to said second head half, said first and second handle portions being joined at a common pivot point by a coupling element comprising two mating plastic elements which snap together allowing motion of said first head half and second head half relative to a longitudinal plane. - View Dependent Claims (30, 31)
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32. A medical device for retraction, comprising:
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a) a head comprising;
a first head half, a second head half, the first head half and the second head half defining a substantially conical surface;
each said head half comprising a longitudinal receding edge defining a gap when said first and second head halves are contacting one another; and
b) a handle coupled to said head, actuation of said handle causing motion of said first head half and second head half relative to a longitudinal plane, and c) a locking mechanism comprising two sets of evenly spaced lugs to lock the device in a fully open, partially open or closed position. - View Dependent Claims (33)
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34. A medical device for retraction, comprising:
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a) a head comprising;
a first head half, a second head half, the first head half and the second head half defining a substantially conical surface;
each said head half comprising a longitudinal receding edge defining a gap when said first and second head halves are contacting one another;
b) a handle coupled to said head, actuation of said handle causing motion of said first head half and second head half relative to a longitudinal plane, and c). a locking mechanism comprising an arm projecting from an upper half of one of said handle portion, said arm comprising a pawl for engaging at least one of a series of teeth of a ratchet disposed on the other of said handle portion.
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35. A medical device for retraction, comprising:
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a) a head comprising a substantially transparent polymeric material, said head comprising;
a first head half comprising a longitudinal edge and a second head half comprising a longitudinal edge, a portion of said longitudinal edge of said first head half contacting a portion of said longitudinal edge of said second head half when said head is in a closed position, said head when in said closed position defining a substantially conical surface comprising a gap defined by other portions of said longitudinal edges and disposed near a base of said head and an upper side of said head; and
b) a handle coupled to said head near the base of said head and a lower side of said head, said upper side of said head being substantially opposed to said lower side of said head, wherein actuation of said handle causes the movement of said first head half and said second head half. - View Dependent Claims (36, 37, 38, 39, 40)
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41. A medical device for retraction, comprising:
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a) a head comprising a substantially transparent polymeric material, said head comprising;
a first head half comprising longitudinal edge and a second head half comprising a longitudinal edge, a portion of said longitudinal edge of said first head half contacting a portion of said longitudinal edge of said second head half when said head is in a closed position, said head when in said closed position defining a substantially conical surface comprising a gap defined by other portions of said longitudinal edges and disposed near a base and an upper side of said head; and
b) a handle coupled to said head, actuation of said handle causing the movement of said first head half and second head half, wherein said handle comprises a first handle portion and a second handle portion, said first handle portion coupled to said first head half and said second handle portion coupled to said second head half, said first and second handle portions being joined at a common pivot point and wherein at least one of said first and second handle portions includes a socket. - View Dependent Claims (42, 43)
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Specification