U.S. patent application number 10/855561 was filed with the patent office on 2004-12-02 for biological hazard protection store and collective bag.
This patent application is currently assigned to LIN, CHIN-LIANG. Invention is credited to Chang, Cheng-Ping, Lin, Chin-Liang, Yu, Hsiu-Chen.
Application Number | 20040238397 10/855561 |
Document ID | / |
Family ID | 33448983 |
Filed Date | 2004-12-02 |
United States Patent
Application |
20040238397 |
Kind Code |
A1 |
Yu, Hsiu-Chen ; et
al. |
December 2, 2004 |
Biological hazard protection store and collective bag
Abstract
An innovated structure of biological protection collecting bag,
having a medical grade filter screen installed inside the
collecting bag, allowing free air flow into and out of the bag,
thereby completely filtering and arresting pathogens inside the
bag. Meanwhile, the bag opening is sealed by a plurality of
airtight sealing strips, so the user can quickly and hermetically
seal the bag without having to squeeze on the collecting bag,
thereby effectively preventing pathogens from contaminating the
ambient environment during handling and stacking processes.
Inventors: |
Yu, Hsiu-Chen; (Taipei,
TW) ; Lin, Chin-Liang; (Taipei, TW) ; Chang,
Cheng-Ping; (Taipei, TW) |
Correspondence
Address: |
STEVENS DAVIS MILLER & MOSHER, LLP
1615 L STREET, NW
SUITE 850
WASHINGTON
DC
20036
US
|
Assignee: |
LIN, CHIN-LIANG
INSTITUTE OF OCCUPATION SAFETY AND HEALTH
Taipei
TW
KANG-NING JUNIOR COLLEGE OF MEDICALCARE & MANAGEMENT
Taipei
TW
SPRING ENVIRONMENT BIOTECH INC.
Taipei
TW
Taipei
TW
|
Family ID: |
33448983 |
Appl. No.: |
10/855561 |
Filed: |
May 28, 2004 |
Current U.S.
Class: |
206/524.8 ;
383/103; 383/63 |
Current CPC
Class: |
A61B 2050/314 20160201;
B65D 33/01 20130101; B65D 33/20 20130101; A61B 50/36 20160201 |
Class at
Publication: |
206/524.8 ;
383/063; 383/103 |
International
Class: |
B65D 033/16 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 2, 2003 |
TW |
92210112 |
Claims
What is claimed is:
1. A biological hazard protection store and collective bag
comprising a bag unit with opening having a plurality of airtight
sealing strips, and the bag unit provides a vent filter device
installed on inside bag wall of the bag unit, thereby allowing free
flow of air into and out of the bag unit, wherein the vent filter
device has a medical grade filter screen.
2. The biological hazard protection store and collective bag of
claim 1, wherein the opening of the bag unit is formed as two or
more layers folded inwardly.
3. The biological hazard protection store and collective bag of
claim 1, wherein a water-resistant vent layer is installed on the
medical grade filter screen of the vent filter device.
4. The biological hazard protection store and collective bag of
claim 2, wherein a water-resistant vent layer is installed on the
medical grade filter screen of the vent filter device.
5. The biological hazard protection store and collective bag of
claim 2, wherein a layer of water absorbent materials is spread on
inside of the bag unit.
6. The biological hazard protection store and collective bag of
claim 3, wherein a layer of water absorbent materials is spread on
inside of the bag unit.
7. The biological hazard protection store and collective bag of
claim 4, wherein a layer of water absorbent materials is spread on
inside of the bag unit.
8. The biological hazard protection store and collective bag of
claim 2, wherein the vent filter device has a base fixed on the bag
wall, which surface of the base has a vent tube penetrating through
the bag wall of the bag unit, and a medical grade filter screen is
pasted over rear side of the base.
9. The biological hazard protection store and collective bag of
claim 3, wherein the vent filter device has a base fixed on the bag
wall, which surface of the base has a vent tube penetrating through
the bag wall of the bag unit, and a medical grade filter screen is
pasted over rear side of the base.
10. The biological hazard protection store and collective bag of
claim 5, wherein the vent filter device has a base fixed on the bag
wall, which surface of the base has a vent tube penetrating through
the bag wall of the bag unit, and a medical grade filter screen is
pasted over rear side of the base.
11. The biological hazard protection store and collective bag of
claim 8, wherein the vent filter device has a water-resistant vent
layer is installed over the medical grade filter screen.
12. The biological hazard protection store and collective bag of
claim 2, wherein the bag unit is made of materials capable of
withstanding high heat steaming sterilization process.
13. The biological hazard protection store and collective bag of
claim 8, wherein the vent filter device has a sealing cap covering
on a vent tube on the base.
14. The biological hazard protection store and collective bag of
claim 2, wherein the bag wall of the bag unit has a formation of
air channels completely covered by the medical grade filter screen
on the bag wall of the bag unit.
15. The biological hazard protection store and collective bag of
claim 14, wherein a layer of water absorbent materials is spread on
inside of the bag unit.
16. The biological hazard protection store and collective bag of
claim 14, wherein a water-resistant vent layer is installed on the
medical grade filter screen
17. The biological hazard protection store and collective bag of
claim 15, wherein a water-resistant vent layer is installed on the
medical grade filter screen
18. The biological hazard protection store and collective bag of
claim 14, wherein the air channels on the bag unit are shaped as
pores.
19. The biological hazard protection store and collective bag of
claim 14, wherein, the air channels on the bag unit are shaped as
narrow gaps.
20. The biological hazard protection store and collective bag of
claim 17, wherein, the air channels on the bag unit are shaped as
narrow gaps.
Description
BACKGROUND OF THE PRESENT INVENTION
[0001] 1. Field of the Present Invention
[0002] The present invention relates to a biological hazard
protection store and collective bag, particularly to a store and
collective bag that has a medical grade filter screen installed
inside the bag and a plurality of airtight sealing strips to seal
the bag opening.
[0003] 2. Description of Prior Act
[0004] The conventional bag used for collecting contaminative
wastes usually has reserved a plastic string and a channel through
which the plastic string is pulled to tighten the opening of the
collecting bag. To facilitate convenient tying of the bag opening,
the user would squeeze on the wastes contained inside the bag,
which would cause vibration to the contaminative wastes in the bag.
In this squeezing process, the gasified aerosol which contains
bacteria and other pathogens would burst out of the opening of the
collecting bag with airflow and spread to the ambient environment.
Particularly, the gasified pathogens are often sucked through
conventional indoor air conditioner to the central system,
resulting in air-borne contamination inside a hospital, especially
those stubborn pathogens, such as pulmonary tuberculosis bacillus.
In a warm and humid weather, the pathogens staying inside the
central air condition system will survive and proliferate
drastically when the air conditioning system of a hospital is
operating at reduced capacity at nighttime or on holidays.
[0005] Also, the gasified aerosol will flow around inside the ward
and land on the entire item surface in the ward, including the body
and the clothing of medical stuff. Consequently, the aerosol on
these surfaces may be a source of iatrogenic infection
contamination.
[0006] No matter how the bag opening is sealed, the conventional
type of contaminative waste collecting bag could not serve hermetic
sealing purpose nor prevent outflow of air and subsequent
contamination. Especially, when the collecting bags are stacked on
each other, the contaminated air which contain aerosol inside the
bag is squeezed out of the bag by stacking weight, resulting in
further contamination on the ambient environment.
[0007] In view of the foregoing shortcomings, it has become an
imperative issue to make improvement on the sealing performance and
infection containment of contaminative waste collecting bags, so as
to facilitate risk-free handling, allowing free airflow into and
out of the collecting bag, and arrest pathogens inside the bag to
prevent further contamination spread out.
SUMMARY OF THE PRESENT INVENTION
[0008] It is an objective of the present invention to provide a
type of biological hazard protection store and collective bag,
having a plurality of airtight sealing strips provided at the
opening of the store and collective bag with the aid of slider, to
achieve the purpose of quick sealing without having to squeeze on
the collecting bag. Importantly, a medical grade filter screen is
installed inside the collecting bag to enable free airflow into and
out of the bag, and effectively filtering and arresting of the
pathogens inside the bag, so that the bag is capable of effectively
preventing virus contamination during handling and stacking
processes of the biological hazard waste.
[0009] It is a second objective of the present invention to provide
a biological protection collecting bag, having an additional
water-resistant vent layer installed on the inside of the medical
grade filter screen to resist water but allow free airflow, so that
when the biological protection collecting bag is used to contain
liquid contaminants, there is no need for the sophisticated
procedure to contain one bag with another outside bag, thereby
preventing further contamination from liquid contaminants and
effectively prevent virus infection and contamination during
handling and stacking processes.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
[0010] FIG. 1 is the schematic drawing of biological hazard
protection store and collective bag of the invention comprising a
vent filter device attached on the inside bag wall.
[0011] FIG. 2 is an enlarged cross sectional drawing to the vent
filter device shown in FIG. 1.
[0012] FIG. 3 is a partial schematic drawing to another embodiment
of biological hazard protection store and collective bag of the
invention comprising another kind of vent filter device attached on
the inside bag wall different from that of vent filter device shown
in FIG. 1.
[0013] FIG. 4 is an enlarged cross sectional drawing to the vent
filter device shown in FIG. 3.
DETAILED DESCRITION OF THE PREFERRED EMBODIMENTS
[0014] As shown in FIG. 1, the present invention of biological
hazard protection store and collective bag 10 is consisted of a bag
unit 20 and a vent filter device 30 that is installed on an inside
of the bag wall of the bag unit 20.
[0015] Two or more layers of the opening of the bag unit 20 are
folded inwardly. On the surface of the inner layer of bag opening
is the formation of a plurality of airtight sealing strips 25. By
fastening the airtight sealing strips 25, the opening of the bag
unit 20 can be hermetically sealed. When the bag unit 20 is
subjected to a large pressure, since the bag opening of the bag
unit 20 is folded inwardly, the folded-in flap of the opening
becomes the point to actually withstand the inside pressure of the
bag unit 20. Therefore, the fastened airtight sealing strips 25 of
the bag unit 20 will not burst due to the large pressure in the bag
unit 20.
[0016] And, the bag unit 20 may be made from the materials capable
of withstanding high heat steaming sterilization process. For
example, the bag unit 20 may be made of linear high density PE for
further making autoclave process.
[0017] The present invention of vent filter device 30 has two
examples of embodiment. As shown in FIGS. 1 and 2, the vent filter
device 30 illustrated in the first embodiment has a base 31
attached on the inside bag wall of the bag unit 20. The surface of
the base 31 is protruded to form a vent tube 34. By installing the
vent tube 34 through the bag wall of the bag unit 20, air can flow
into or out of the bag unit via the vent tube 34. Furthermore, a
layer of medical grade filter screen 32 is attached to, or
monolithically formed with the rear surface of the base 31. The
medical grade filter screen 32 serves the filter function to filter
and hermetically arrest germs or pathogens inside the bag unit 20.
Thereby, the air coming out of the vent filter device 30, even if
it carries a bad smell, is free from germs or pathogens and will
not contaminate ambient environment.
[0018] As shown in FIG. 1, the present invention has a sealing cap
35 that is used to seal the vent tube 34 on the vent filter device
30, keeping the bad odor of the contaminative wastes from coming
out of the biological hazard protection store and collective bag
10.
[0019] Another embodiment of the present invention of vent filter
device 30 is illustrated in FIGS. 3 and 4. Provided on the ball of
the bag unit 20 is the formation of pores or narrow air channels
26. Then, a layer of medical grade filter screen 32 is directly
pasted over, or monolithically formed with the wall of the bag unit
20, to completely cover the air channels 26 on the bag unit 20.
Using the air channels 26, air can flow into or out of the bag unit
20. Meanwhile, the medical grade filter screen 32 serves to filter
and arrest germs or pathogens inside the bag unit 20.
[0020] Optionally, to prevent liquid contaminants from dampening
the medical grade filter screen 32 on the vent filter device 30,
which will result in contamination, another embodiment of the
present invention shows, as in FIG. 4, an additional
water-resistant vent layer 33 installed on the inside of the
medical grade filter screen 32, the side in contact with the
contaminant, to resist water while allowing air to pass through, so
that gases may pass through the water-resistant vent layer 33, and
be filtered by the medical grade filter screen 32. Optionally,
water-absorbent materials (not drawn) are spread inside the bag
unit 20 to absorb contaminative liquids, such as blood, water, and
the like. Because of the foregoing features, the present invention
of biological hazard protection store and collective bag 10 is free
from the sophisticated procedures as found in conventional type of
collecting bags that require an outside bag to contain an inside
bag to achieve the purposes of biological protection against
hazards and contamination.
[0021] The present invention of biological hazard protection store
and collective bag 10 is suitable for applications in hospitals,
medical institutions, labs, and animal farms, and can be used as
sealing bags to contain forensic evidences and nuclear wastes.
[0022] Instead of squeezing the bag unit 20 of the biological
protection collecting bag 10 after it has collected contaminative
wastes, the user can quickly and hermetically seal the opening of
the bag unit 20 simply by fastening the airtight sealing strips 25
on the opening of the bag unit 20. The vent filter device 30 on the
bag unit 20 will perform its job to filter and completely arrest
germs and pathogens inside the bag unit 20 while air flows into and
out of the bag unit 20. Importantly, during handing and stacking
processes, the opening fastened by the airtight sealing strips 25
will not be busted by heavy stacking weight, thereby achieving
effective protection against virus infection and contamination.
Optionally, high heat sterilization by steaming process can be
performed on the bag unit 20 to achieve the purpose of thorough
sterilization.
* * * * *