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Swivel Valve Body for Bone Cement Dispensing Devices

A distributing device and rotary valve technology, applied in the direction of cocks, valve devices, valves, etc. including cut-off devices, can solve the problems of untenable, unreasonable economics, high acquisition cost, etc., and achieve the effect of simple design

Inactive Publication Date: 2016-06-01
HERAEUS MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high acquisition cost, it is unreasonable and economically indefensible to use valves made of metal for single-use use involving fewer opening and closing steps

Method used

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  • Swivel Valve Body for Bone Cement Dispensing Devices
  • Swivel Valve Body for Bone Cement Dispensing Devices
  • Swivel Valve Body for Bone Cement Dispensing Devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] figure 1 Two schematic perspective side views from opposite sides of the rotary valve body of the present invention are shown. The rotary valve body comprises a cylindrical sleeve surface 2 which, in its assembled state (not shown), is in contact with the valve seat of the dispensing device. A groove 4 is arranged in the cylindrical sleeve surface 2 and is provided for accommodating a guide ring for positioning the rotary valve body in the valve seat during rotation. These guide rings can also be securely attached to the valve seat.

[0076] The shape of the cylindrical sleeve surface 2 can also be slightly conical. A first sealing cam 6 and a second sealing cam 7 made of polyoxymethylene are arranged between the grooves 4 on the sleeve surface 2 . In the assembled state, the function of the two sealing cams is to close the openings of the two gas conduits in the valve seat in a gas-tight manner with the rotation of the rotary valve body.

[0077] The first opening ...

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PUM

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Abstract

The invention relates to a rotary valve body for a bone cement dispensing device, which can be rotatably arranged in a matching valve seat in the dispensing device, wherein the rotary valve body rotates around at least in the region for the valve seat The axis of rotation of the valve body is rotationally symmetrical and at least one sealing cam made of elastic plastic material is arranged in the rotationally symmetrical sleeve surface of said area and raised above the radius of the rotationally symmetrical sleeve surface so that the sealing cam such that the circumference of the rotary valve body is greater than the inner diameter of the valve seat, and wherein at least one feed passage is arranged in the rotary valve body and extends from a first opening in the rotationally symmetrical sleeve surface of the rotary valve body in the sealing cam to the rotary valve In the second opening in the rotationally symmetrical sleeve surface of the body. The invention also relates to a valve system comprising a rotary valve body and a valve seat of this type and a medical dispensing device for single use having a valve system of this type for regulating the flow of gas.

Description

technical field [0001] The present invention relates to a rotary valve body for a bone cement dispensing device. Another object of the present invention is a rotary valve that is inexpensive to produce and designed to regulate the flow of pressurized gas in a pressurized gas-driven medical device, wherein the medical device is made of plastic material and is designed for single use . Background technique [0002] Polymethylmethacrylate (PMMA) bone cement is frequently used for mechanical fixation of endo-articular prostheses in orthopedic surgery and accident surgery. In modern vacuum mixing systems, cement is made by mixing polymer powder with monomer liquid in a bottle. Next, the cement mass produced in this way is drained from the bottle and coated with cement by means of a manually operated draining device. Many users find the manual ejection process unpleasant because of the need to apply manual force. For this reason, DE 10 2010 019 222 A1 and DE 10 2010 019 224 B3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M39/22
CPCA61B17/8822A61B17/8825A61B17/8827F16K11/085A61B2017/0023F16K5/0407F16K11/0856Y10T137/86566A61M39/22
Inventor S.福格特C.格赖纳R.海因
Owner HERAEUS MEDICAL