TW202306624A - Anti-torsion filter used for breathing circuit system - Google Patents

Abstract

The invention discloses an anti-torsion filter for a breathing pipeline system. The anti-torsion filter comprises a first cover body, a second cover body and a pivot sleeve, the first cover body is provided with a first extension pipe and a first outer side frame, and the first extension pipe is in fluid communication with a gas flowing space; the second cover body is provided with a second extension pipe and a second outer side frame, and the second extension pipe is in fluid communication with a filter material accommodating space; the pivot sleeve is axially pivoted to the second extension pipe to form a rotatable anti-torsion joint, the pivot sleeve is in fluid communication with the filter material accommodating space, and a filter material can be arranged in the filter material accommodating space; wherein the first outer side frame is fixed on the second outer side frame.

Description

Torsion-resistant filters for breathing circuit systems

The present invention relates to a filter for a breathing circuit system, in particular to an anti-torsion filter for a breathing circuit system, a filter material is arranged on the The inside of the filter, and the filter has a rotatable anti-torsion joint (Anti-torsion joint) to reduce the formation of torsion.

Known technology (1) such as U.S. No. US4148732A patent, the main disclosed technology is a kind of bacterial filter unit, and this filter unit comprises two-piece molded shell, and described two shell parts are hermetically engaged, and a filter medium is held Between the two housing parts, each housing part has a tubular end for connection to a breathing circuit through which bacteria can be filtered by the filter unit. When the filter unit is used in a breathing circuit, if the breathing circuit is rotated due to position or gravity, the two shell parts will bear a torque, and the breathing circuit may be twisted or deformed. Therefore, this prior art (1) still needs to be improved.

Known technology (2) such as U.S. Patent No. US5035236A, the main disclosed technology is a heat and moisture exchange breathing gas filter device with a filter element formed by strips of bacterial filter material, which is folded transversely into pleats and bent Formed in a ring, the filter element is sealed in a circular housing; exhaled air can heat and wet the filter element, and inhaled air is filtered by the filter element and absorbs some heat and moisture from the filter element. When the heat-moisture exchange respiratory gas filtering device is used in a breathing tube, if the breathing tube rotates due to position or gravity, the circular shell will bear a torque, and the breathing tube may be twisted or deformed. Therefore, this prior art (2) still needs to be improved.

The object of the present invention is to provide a torsion-resistant filter for a breathing pipeline system, the filter includes a first cover, a second cover and a pivot sleeve (Pivoting sleeve tube); the first The cover has a first extension tube and a first outer frame, and the first extension tube is fluidly connected to a gas flow space; the second cover has a second extension tube and a second outer frame, The second extension pipe is in fluid communication with a filter material accommodating space; the pivot sleeve is axially pivoted (Axially pivot) to the second extension pipe to form a rotatable anti-torsion joint (Anti-torsion joint), the The pivot sleeve is in fluid communication with the filter material accommodating space, and a filter material can be set in the filter material accommodating space; wherein the first outer frame is fixed to the second outer frame.

The effect (one) of the present invention is that the filter can be arranged in a breathing pipeline system, and the filter reduces the formation of torsion by the pivot sleeve.

The effect (two) of the gain of the present invention is that when the filter is removed, the operator can fix a Y-shaped connector (Y Piece Connector) of the breathing pipeline system to a catheter bracket (Catheter) of the breathing pipeline system. Mount) straight connector (Straight Connector) to maintain the operation of the breathing circuit system.

The effect (3) of the gain of the present invention is that a first inner frame of the first cover and a second inner frame of the second cover can jointly clamp a filter cotton, and the edge of the filter cotton will not It is squeezed by the first outer frame and the second outer frame to affect the filtering effect.

1: filter

2: Breathing circuit system

10: The first cover

11: The first extension tube

110: coaxial outer tube

12: The first outer border

14: Gas flow space

141: The first arc rib

16: First inner border

18: Gas sampling port

19: sealing cover

20: Second cover

21: Second extension tube

22: Second outer border

24: filter material storage space

241: second arc rib

242: support part

243: Barrier rod

25: ring rib

251: Inclined surface

26: Second inner border

30: Pivot bushing

300: coaxial inner tube

32: Annular gap

35: track

351: limit surface

352: limit part

40: filter material

46: filter cotton

461: The edge of the filter cotton

50:Y-type connector

51: confluence end

52: Suction end

53: exhalation end

60: catheter holder

63: Straight connector

65:Snorkel

72: suction pipe

73: exhalation tube

[Fig. 1] is a schematic diagram of the filter of the present invention used in a breathing pipeline system.

[Fig. 2] is a three-dimensional exploded schematic diagram of the filter of the present invention arranged between the Y-shaped connector and the straight joint.

[Fig. 3] is a schematic diagram of the combined state of the filter of the present invention arranged between the Y-shaped connector and the straight-shaped connector.

[Fig. 4] is a schematic diagram of the combined state of the Y-shaped connector and the straight joint.

[Fig. 5] is a perspective view of a preferred embodiment of the present invention.

[Fig. 6] is a perspective view of a pivot bushing in a preferred embodiment of the present invention.

[Fig. 7] is another perspective view of the pivot sleeve of the preferred embodiment of the present invention.

[Fig. 8] is a three-dimensional sectional view of the pivot bushing of the preferred embodiment of the present invention.

[Fig. 9] is another three-dimensional cross-sectional view of the pivot sleeve of the preferred embodiment of the present invention.

[Fig. 10] is a partial perspective exploded view (1) of a preferred embodiment of the present invention.

[Fig. 11] is a partial perspective exploded view (2) of a preferred embodiment of the present invention.

[FIG. 12] is a sectional view of part A-A of FIG. 5.

[Fig. 13] is a schematic diagram of the action of the preferred embodiment of the present invention.

In order to further understand the features, technical means, and achieved specific functions and objectives of the present invention, more specific embodiments are listed hereafter, followed by detailed descriptions of drawings and figures as follows.

Please refer to Figs. 1 to 4, the anti-torsion filter 1 of the present invention can be arranged in a breathing pipeline system 2, and the breathing pipeline system 2 has a Y-shaped connector (Y Piece Connector) 50 and a catheter bracket (Catheter Mount) 60 , the filter 1 can be disposed between the Y-shaped connector 50 and the conduit bracket 60 .

5 to 12, in a preferred embodiment, the anti-torsion filter 1 of the present invention includes a first cover 10, a second cover 20 and a pivot sleeve 30; the first The cover 10 has a first extension tube 11, the first cover 10 has a first outer frame 12 and a gas flow space 14, the first extension tube 11 is in fluid communication with the gas flow space 14; the second cover The body 20 has a second extension tube 21, the second cover body 20 has a second outer frame 22 and a filter material accommodating space 24, the second extension tube 21 is fluidly connected to the filter material accommodating space 24; the pivot The sleeve 30 is axially pivoted to the second extension pipe 21 to form a rotatable anti-torsion joint. The pivot sleeve 30 is in fluid communication with the filter material accommodation space 24, and the filter material accommodation space 24 can be provided with a filter material 40 (such as filter paper or filter cotton); wherein the first outer frame 12 is fixed to the second outer frame 22 (such as bonding or ultrasonic welding); when the filter 1 is set in a respiratory pipeline system 2, the filter The device 1 reduces the formation of torsion by the pivot sleeve 30 (for example, the pivot sleeve 30 and the second extension tube 21 rotate relatively to eliminate the rotational torsion).

Please refer to Fig. 6 to Fig. 13, illustrate the pivot bushing 30 The pivot connection with the second extension tube 21: the first extension tube 11 is integrally formed on the first cover 10, the second extension tube 21 is integrally formed on the second cover 20, the second extension tube 21 With an annular rib 25, the pivot sleeve 30 has a track 35, the track 35 is formed by a limiting surface 351 and a plurality of limiting parts 352, the annular rib 25 enters the track 35 through an inclined surface 251 , so that the pivot sleeve 30 is axially pivoted to the second extension tube 21 , and the pivot sleeve 30 and the second extension tube 21 can rotate relative to each other.

Please refer to Fig. 12 to Fig. 13, enumerate and illustrate the way of increasing air tightness: the pivot sleeve 30 further has a coaxial inner tube 300, the coaxial inner tube 300 is integrally formed on the pivot sleeve 30, the pivot An annular gap 32 is formed between the shaft sleeve tube 30 and the coaxial inner tube 300 , and the second extension tube 21 extends into the annular gap 32 to increase airtightness.

Please refer to Fig. 10 to Fig. 12, enumerate and illustrate that this filter 1 can increase the mode of a filter cotton sheet 46: the gas flow space 14 is bounded by a first inner side frame 16, and the filter material accommodating space 24 is defined by Defined by a second inner frame 26, the first inner frame 16 and the second inner frame 26 can jointly clamp a filter cotton sheet 46; wherein the filter cotton sheet 46 can be selected to filter bacteria or viruses, and the filter The cotton sheet 46 can separate the gas flow space 14 and the filter material accommodating space 24 . The first outer frame 12 of the first cover 10 has a distance from the first inner frame 16, and the second outer frame 22 of the second cover 20 has a distance from the second inner frame 26. Therefore, the filter cotton The edge 461 of 46 will not be pressed against the first outer frame 12 and the second outer frame 22 to affect the filtering effect.

Referring to Figures 1 through 3, when using the filter 1, the breath The pipeline system 2 has the Y-shaped connector 50 and the catheter holder 60, and the operator can set the filter 1 between the Y-shaped connector 50 and the catheter holder 60; wherein the catheter holder 60 has a straight joint ( Straight Connector) 63, the pivot sleeve 30 of the filter 1 can be fixed to the straight connector 63.

Please refer to FIG. 4, when the filter 1 is removed, the operator can fix the confluent end 51 of the Y-shaped connector 50 to the straight joint 63 of the catheter holder 60, and still maintain the breathing circuit system 2. operation.

Please refer to FIG. 3 , which illustrates how the filter 1 is connected to the Y-connector 50: the first extension tube 11 further has a coaxial outer tube 110; when the filter 1 is connected to the Y-connector 50 , the confluent end 51 of the Y-connector 50 is fixed between the first extension tube 11 and the coaxial outer tube 110; during the use of the filter 1, if the Y-connector 50 is affected by position or gravity When rotation occurs, the breathing tube system 2 can reduce the torsion force generated by the Y-shaped connector 50 through the pivot sleeve 30 .

Please refer to Fig. 1 and shown in Fig. 3, illustrate the connection mode of this filter 1 and this catheter holder 60: this catheter holder 60 further has a breathing tube 65; The straight joint 63 of the bracket 60 is fixed on the pivot sleeve 30; during the use of the filter 1, if the catheter bracket 60 rotates due to the influence of position or gravity, the breathing pipeline system 1 can pass through the Pivot bushing 30 reduces torsional forces generated by catheter bracket 60 .

Please refer to FIGS. 1 to 3 , which illustrate the airflow path of the breathing pipeline system 2: the breathing pipeline system 2 has an inhalation tube 72 and an exhalation tube 73; An inhalation end 52 of the Y-shaped connector 50 is connected to the inhalation tube 72 , and an exhalation end 53 of the Y-shaped connector 50 is connected to the exhalation tube 73 . The airflow path of inhalation is: the inhalation airflow of the inhalation pipe 72 enters the filter 1 from the inhalation end 52 and the confluence end 51 of the Y-shaped connector 50, and the airflow of inhalation after filtering is passed through the hub The hub 30 enters the catheter holder 60 . The airflow path of the exhaust gas is: the airflow of the exhaust gas of the conduit bracket 60 enters the filter 1 through the pivot sleeve 30, and the airflow of the exhaust gas after filtering is then connected to the confluence end 51 of the Y-shaped connector 50 and the exhalation airflow. The gas end 53 enters the exhalation tube 73 .

Referring to Fig. 5, Fig. 11 and Fig. 12, the gas sampling method of the filter 1 is enumerated: the first cover 10 further has a gas sampling port (Gas sampling port) 18, and the gas sampling port 18 is in fluid communication with In the gas flow space 14 , the gas sampling port 18 further has a detachable sealing cover 19 , and the filter 1 can perform gas sampling through the gas sampling port 18 .

Please refer to Fig. 10 to Fig. 12 to illustrate the accelerated airflow mode of the filter 1: the first cover 10 is further provided with a plurality of first arc-shaped ribs 141 in the gas flow space 14 to guide the airflow, and the second The cover body 20 is further provided with a plurality of second arc-shaped ribs 241 in the filter material accommodating space 24 to guide the airflow. The filter 1 accelerates the airflow through the plurality of first arc-shaped ribs 141 and the plurality of second arc-shaped ribs 241 .

Please refer to FIGS. 11 to 12 , which illustrate the anti-clogging method of the filter 1: the second cover 20 is further provided with a support portion 242 and at least one blocking rod 243 in the filter material accommodating space 24, and the filter material 40 It is limited between the plurality of first arc-shaped ribs 141 and the plurality of second arc-shaped ribs 241, and the filter material 40 is supported by the support part 242; wherein the support part 242 and the blocking rod 243 are integrally formed on the second cover Inside the body 20, the filter 1 prevents the patient's sputum from clogging the filter material 40 by the blocking rod 243.

1: filter

2: Breathing circuit system

10: The first cover

110: coaxial outer tube

20: Second cover

30: Pivot bushing

50:Y-type connector

51: confluence end

52: Suction end

53: exhalation end

60: catheter holder

63: Straight connector

65:Snorkel

72: suction pipe

73: exhalation tube

Claims (10)

A torsion-resistant filter for a breathing circuit system, the filter (1) comprising: A first cover (10), the first cover (10) has a first extension tube (11), the first cover (10) has a first outer frame (12) and a gas flow space ( 14), the first extension pipe (11) is in fluid communication with the gas flow space (14); A second cover (20), the second cover (20) has a second extension tube (21), the second cover (20) has a second outer frame (22) and a filter material accommodating space (24), the second extension pipe (21) is in fluid communication with the filter material accommodating space (24); a pivot sleeve (30), the pivot sleeve (30) is axially pivoted to the second extension tube (21) to form a rotatable torque-resistant joint, the pivot sleeve (30) is in fluid communication in the filter material accommodating space (24); A filter material (40), arranged in the filter material accommodating space (24); wherein the first outer frame (12) is fixed to the second outer frame (22); when the filter (1) is arranged in a breathing pipeline When the system (2), the filter (1) reduces the formation of torsion by the rotatable anti-torsion joint. According to claim 1, the anti-torsion filter for the respiratory pipeline system, wherein the first extension tube (11) is integrally formed on the first cover (10), and the second extension tube (21) is integrally formed on the The second cover (20), the second extension tube (21) has an annular rib (25), the pivot sleeve (30) has a track (35), the track (35) is formed by a limiting surface (351) and a plurality of limiting parts (352), the annular rib (25) enters the track (35) through an inclined surface (251), The pivot sleeve (30) is axially pivoted to the second extension tube (21). The torsion-resistant filter for breathing pipeline system according to claim 1, wherein the pivot sleeve (30) further has a coaxial inner tube (300), and the coaxial inner tube (300) is integrally formed on the pivot Sleeve (30), an annular gap (32) is formed between the pivot sleeve (30) and the coaxial inner tube (300), and the second extension tube (21) extends into the annular gap (32) to Increase airtightness. As described in Claim 1, the torsion-resistant filter for the respiratory pipeline system, wherein the gas flow space (14) is defined by a first inner frame (16), and the filter material accommodation space (24) is defined by a Defined by the second inner frame (26), the first inner frame (16) and the second inner frame (26) clamp a filter cotton sheet (46) together. The torsion-resistant filter for the respiratory pipeline system as described in claim 1, wherein the respiratory pipeline system (2) has a Y-shaped connector (50) and a catheter bracket (60), the filter (1) Set between the Y-shaped connector (50) and the catheter bracket (60), the pivot sleeve (30) is fixed to the straight joint (63) of the catheter bracket (60); remove the filter (1 ), the operator can fix a confluent end (51) of the Y-shaped connector (50) to the straight joint (63) of the conduit bracket (60). The torsion-resistant filter for the respiratory pipeline system as described in claim 5, wherein the first extension tube (11) further has a coaxial outer tube (110); When the filter (1) is connected to the Y-connector (50), the confluent end (51) of the Y-connector (50) is fixed on the first extension tube (11) and the coaxial outer tube (110) ) in the middle, the breathing pipeline system (2) reduces the torque generated by the Y-shaped connector (50) through the pivot sleeve (30). The torsion-resistant filter for the respiratory pipeline system as described in claim 5, wherein the conduit support (60) further has a breathing tube (65); when the filter (1) is connected to the conduit support (60), The straight joint (63) of the catheter support (60) is fixed to the pivot sleeve (30), and the breathing circuit system (2) lowers the catheter support (60) through the pivot sleeve (30) generated torque. The anti-torsion filter for the respiratory pipeline system as described in claim 5, wherein an inhalation end (52) of the Y-shaped connector (50) is further connected with an inhalation tube (72), and the Y-shaped connector An exhalation end (53) of (50) is further connected with an exhalation tube (73). The torsion-resistant filter for the respiratory pipeline system as described in claim 1, wherein the first cover (10) further has a gas sampling port (18), and the gas sampling port (18) is fluidly connected to the gas flow space (14), the gas sampling port (18) further has a detachable sealing cover (19). The torsion-resistant filter used in the respiratory pipeline system according to claim 1, wherein the first cover (10) is further provided with a plurality of first arc-shaped ribs (141) in the gas flow space (14) to guide the airflow , the second cover (20) is further provided with a plurality of second arc-shaped ribs (241) in the filter material accommodating space (24) to guide the airflow, and the second cover (20) is further arranged in the filter material accommodating space ( 24) set a support portion (242) and at least one blocking rod (243), the filter material (40) is limited between the plurality of first arc-shaped ribs (141) and the plurality of second arc-shaped ribs (241), and The filter material (40) is supported by the supporting part (242).

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