EP0185658B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A system for the flushing of the capsule of the knee joint
Assignee: Gambro AB
•
Filing: 1984-07-11
•
Granted: 1988-05-25
•
Expires: 2004-07-11
Abstract
Abstract A system for the flushing of a body cavity (5) comprising a duct (3) connectable to a liquid source (2) with a pump (1) for the pumping of the liquid to a leading-in apparatus (4) for the liquid. Characteristic for the system is a pressure pick-up (19) arranged between the pump (1) and the said apparatus (4) which is adapted to control the pressure in the body cavity (5). The system in accordance with the invention is intended in particular to be used in conjunction with arthroscopy, the said leading-in apparatus for the liquid thus being constituted of an arthroscope with the help of which a knee-joint can be inspected and/or treated.
Inventors
- 👤 Bo Hakan Hakanson
- 👤 Per-Erik Andersson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 08:15
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61M; A61M3/00; A61M3/02; A61M3/0204; A61M3/0208; A61M3/0212; A61M3/0216; A61M2205/00; A61M2205/33; A61M2205/3331; A61M2205/3344; A61M3/0233; A61M3/0254
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
150 words
An arthroscopy system for continuous flushing of the capsule (5) of the knee joint, which is divided into a flexible tube set (3, 9, 15, 18) intended for single use and a peristaltic pump (1) with associated control system intended for multiple use, the flexible tube set comprising a duct (3) connectable to a liquid source (2) with a pump segment (9) for the pumping of the liquid to a leading-in apparatus (4) for the liquid and a draining duct (15) connectable to the capsule (5), said first mentioned duct (3), the capsule (5) and said draining duct (15) being intended to be connected in series, characterized by a pressure gauge (19) connectable to the duct (3) between the pump (1) and the capsule (5), which is adapted to control a draining valve (16) provided in the draining duct (15) for the control of the pressure in the capsule (5).
Claim 2
Dependent Claim
150 words
An arthroscopy system for continuous flushing of the capsule (5) of the knee joint, which is divided into a flexible tube set (3, 9, 15, 18) intended for single use and a peristaltic pump (1) with associated control system intended for multiple use, the flexible tube set comprising a duct (3) connectable to a liquid source (2) with a pump segment (9) for the pumping of the liquid to a leading-in apparatus (4) for the liquid and a draining duct (15) connectable to the capsule (5), said first mentioned duct (3), the capsule (5) and said draining duct (15) being intended to be connected in series, characterized by a pressure gauge (19) connectable to the duct (3) between the pump (1) and the capsule (5), which is adapted to control a draining valve (16) provided in the draining duct (15) for the control of the pressure in the capsule (5).
Claim 3
Dependent Claim
49 words
A system in accordance with claim 1, characterized in that the said flexible tube set has a branch duct (18) connected downstream of the pump segment (9), this branch duct being connectable to the pressure gauge (19) via a liquid-tight but gas-permeable filter (20) or an elastic, tight membrane.
Claim 4
Dependent Claim
36 words
A system in accordance with claim 2, characterized in that the said branch duct (8) comprises further a vent valve (21 which preferably comprises a self-closing membrane (23) which can be penetrated by a cannula (22).
Claim 5
Independent Claim
41 words
A system in accordance with any one of claims 1-3, characterized in that the pressure gauge (19) is adapted to open the valve (16) in the draining duct (15) when a certain, preferably adjustable pressure in the capsule (5) is attained.
Claim 6
Independent Claim
49 words
A system in accordance with anyone of claims 1-4, characterized in that the pressure gauge (19) is adapted to stop further rise in pressure through adjustment of the pump (1) or complete stopping of the pump when a certain, preferably adjustable maximum pressure in the capsule (5) is attained.
Claim 7
Independent Claim
25 words
A system in accordance with any one of claims 1-3, characterized in that the valve (16) in the draining duct (15) is also controllable manually.
Claim 8
Dependent Claim
51 words
A system in accordance with claim 4 and 5, characterized by means for the ball joint control of the said two adjustable pressures, so that the valve (16) in the draining duct (15) always opens when the pressure in the capsule (5) attains a certain fracture of the said maximum pressure.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.