CN101014311A - Gastric tube placement indicator - Google Patents
Gastric tube placement indicator Download PDFInfo
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- CN101014311A CN101014311A CN 200580030156 CN200580030156A CN101014311A CN 101014311 A CN101014311 A CN 101014311A CN 200580030156 CN200580030156 CN 200580030156 CN 200580030156 A CN200580030156 A CN 200580030156A CN 101014311 A CN101014311 A CN 101014311A
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Abstract
A gastric tube placement device (10) having a carbon dioxide indicator (12) is disclosed. The carbon dioxide indicator (12) comprises a rectangular housing (18) defining a passageway (44) in communication with opposing ports (30, 32) that permits substantial axial flow through the passageway (44) with a carbon dioxide detector (17) disposed therein. A Y-port connector (16) having first and second legs (52, 54) in communication with a main port (56) with a gastric tube (14) coupled to the inside of the connector (16) is provided for insertion of the distal end of the gastric tube (14) through the esophagus of the patient. The carbon dioxide detector (17) is disposed inside the rectangular housing (18) which is configured to minimize the dead space inside the housing (18) and facilitates a substantially axial airflow through the passageway (44) when a syringe or similar air-evacuating device (50) is engaged to the rectangular housing (18) and draws air from the housing (18).
Description
It is the priority of the non-temporary patent application of the U.S. of US10/945758 for " gastric tube placement indicator ", application number that this part continuation application requires in the denomination of invention of JIUYUE in 2004 submission on the 21st, and its content is hereby incorporated by.
Technical field
The present invention relates to a kind of medical apparatus and instruments that is used for verification stomach service pipe in the intravital placement of patient, and relate in particular to a kind of gastric tube placement device, be used to detect carbon dioxide by the stomach service pipe.
Background technology
Known in the art, the stomach service pipe can be used for supplying with required nutritional support to the patient.Can this stomach service pipe be inserted in patient's body through oral area or nose.In practice, the stomach service pipe inserts patient's mouth or nose and passes through the pharyngeal of patient, up to arriving esophagus.
Common defective is the stomach service pipe might be sent into trachea from mouth or nose placement stomach service pipe the time, and is deep into respiratory tract and pulmonary, rather than correctly in stomach.The consequence of the stomach service pipe being put into respiratory system is to cause disadvantageous complication medically, comprises that pneumothorax, aspiration pneumonitis or other can damage the complication of patient breathing system.
Therefore, being used for determining that the stomach service pipe is developed in the method for the correct placement of esophagus, (is the carbon dioxide cardiotokography, capnography) such as fluoroscopy, chest X-ray examination and successive carbon dioxide monitoring.But the shortcoming of fluoroscopy and chest X-ray examination is consuming time, relatively costly and the patient can be exposed to the radiation of high dose, and the carbon dioxide indicator that uses in the carbon dioxide cardiotokography is compared with other monitoring carbon dioxide plant, and is relatively costly and complicated.
Colorimetric carbon dioxide detectors is used detecting existing of carbon dioxide with aerating system usually, thereby air tube is correctly put into patient's trachea.Colorimetric indicator has pH sensing paper, and this pH sensing paper changes color when having carbon dioxide, thereby indicates to the vision that medical personnel provide air tube correctly to put into trachea rather than esophagus.Though this colorimetric indicator is enough to detect the existence of carbon dioxide in respiratory system in the process of placing air tube, it is defective being used to indicate the stomach service pipe to be put into trachea improperly traditional colorimetric indicator.Because the tube chamber of stomach tube is little more a lot of than the bigger tube chamber of air tube, be convenient to enough air-flows are arranged so that the ability of the stomach service pipe fast detecting carbon dioxide by less tube chamber is restricted.
Referring to Fig. 1, the housing 88 of the colorimetric carbon dioxide indicator 8 of prior art comprises ingress port 90 and outlet port 92, and these two ports are with respect to the relation location of housing 88 to be perpendicular to one another.In addition, since ingress port 90 and outlet port 92 need to determine size and be configured as with relevant with aerating system (be used for hello compare to the less tube chamber of the stomach service pipe of application) bigger tube chamber joint, so the housing 88 of carbon dioxide indicator 8 limits required large volume.The bigger port 90 and 92 of prior art carbon dioxide indicator 8 has also increased the size and the volume of indicator housing 88, so that hold these ports that must increase the potential dead band that is limited by housing 88 90 and 92.Like this, the use of prior art carbon dioxide indicator 8 on gastric tube placement is problematic, this is because the stomach service pipe has the tube chamber littler than the air tube that is used for respiratory applications, and it can cause deficiency of air by the bigger dead band that is limited by housing 88 with the fast detecting carbon dioxide.For example, the housing 88 of prior art carbon dioxide indicator 8 can have 5 cubic centimetres volume, and its ingress port 90 and outlet port 92 location that is perpendicular to one another as mentioned above is so that hold breather.Though this prior art carbon dioxide indicator 8 is applicable to respiratory applications, but the vertical relation of the larger volume of indicator 8 and outlet port 92 and ingress port 90 makes this indicator 8 not be suitable for gastric tube placement and uses, and its reason is that bigger dead band and the uprush path that limits between port 90 and 92 can reduce the effectiveness that carbon dioxide indicator 8 fast detecting carbon dioxide exist.Especially, this port locations produces the uprush path by the housing of prior art carbon dioxide indicator, and this emphasizes that for strictness the gastric tube placement that the fast detecting carbon dioxide exists is unfavorable.
Therefore, have in this area being used for the demand of the carbon dioxide indicator that the stomach service pipe places, the housing of this indicator limits enough little dead band and ingress port is provided and has exported direct gas flow path between the port.
Summary of the invention
In one embodiment, the present invention includes a kind of medical treatment and place indicator, this placement indicator comprises: rectangular case, this rectangular case limit the passage that is communicated with one first relative port and one second port, and this rectangular case also comprises the transparent part that is used to observe described passage; Carbon dioxide indicator, this carbon dioxide indicator is arranged in the described passage vertically, this carbon dioxide indicator is suitable for detecting the existence of carbon dioxide, rectangular case is built into and limits a low dead band in this rectangular case, the wherein said first and second relative ports become to make that with described channel connection crossing the described first relative port by the air communication of described passage enters and discharge from the second opposed end mouth, and wherein said air communication is crossed the described passage of the rectangular case between described relative first and second ports, basically by along axial lead.
In another embodiment, the present invention includes gastric tube placement device, this gastric tube placement device comprises: stomach tube, and this stomach tube limits the tube chamber that is communicated with a distal openings and a proximal openings; And carbon dioxide indicator, this carbon dioxide indicator comprises the carbon dioxide indicator that is placed in the rectangular case, described rectangular case limits a passage that is communicated with the first and second relative ports, carbon dioxide indicator crosses described passage placement simultaneously, described rectangular case is built into and limits a low dead band when described carbon dioxide indicator is set in the described passage in described passage, one in the first and second relative ports is suitable for engaging with stomach tube, so that set up fluid flow communication between the described passage of the distal openings of stomach tube and rectangular case.
In an embodiment again, a kind of method that is used to detect gastric tube placement comprises: the Y shape port connector of a hollow is provided, and this Y shape port connector limits first and second supporting legs that are communicated with master port; Make one in a carbon dioxide indicator and described first and second supporting legs to engage, this carbon dioxide indicator comprises rectangular case, this rectangular case limits the passage that is communicated with one first relative port and one second port, this rectangular case also comprises the transparent part that is used to observe described passage, a carbon dioxide indicator is arranged in the described passage vertically, this carbon dioxide indicator is suitable for detecting the existence of carbon dioxide, and rectangular case is built into and limits a low dead band in this rectangular case; Set up fluid flow communication between one in described relative first and second ports one and described first and second supporting legs; Stomach tube is engaged with the master port of Y shape port connector; The means for engaging that is used in extracting air is on rectangular case; And from the rectangular case extracting air, thereby the described passage that passes between described first and second ports relatively causes the axial air-flow in basic upper edge, so that described carbon dioxide indicator can detect the existence of carbon dioxide in this air-flow.
Description of drawings
Fig. 1 is the perspective view of prior art carbon dioxide indicator;
Fig. 2 is the perspective view according to carbon dioxide indicator of the present invention;
Fig. 3 is the vertical view according to carbon dioxide indicator of the present invention;
Fig. 4 is the side view according to carbon dioxide indicator of the present invention;
Fig. 5 is the cutaway view of the line 5-5 intercepting in Fig. 4, shows by the air flow path according to carbon dioxide indicator of the present invention;
Fig. 6 is the exploded view of carbon dioxide indicator, shows according to carbon dioxide indicator of the present invention;
Fig. 7 is a this top partial cut-away view of gastric tube placement, and this gastric tube placement device comprises according to carbon dioxide indicator of the present invention; And
Fig. 8 shows in the esophagus that gastric tube placement device is inserted the patient according to the present invention.
In the accompanying drawings, corresponding Reference numeral refers to corresponding parts.
The specific embodiment
Referring to accompanying drawing, gastric tube placement device according to the present invention illustrates and indication substantially with Reference numeral 10 in Fig. 2-8.Gastric tube placement device 10 comprises carbon dioxide (CO
2) indicator 12, this CO
2In the indicator 12 CO is housed
2 Detector 17, this CO
2Detector 17 is communicated with traditional Y shape port connector 16 on joining stomach tube 14 to, so that detect the existence of carbon dioxide from the patient.
Referring to Fig. 2-4, CO
2Indicator 12 comprises orthogonal housing 18, in this housing 18 CO is housed
2 Detector 17 is used to detect the carbon dioxide that may enter detector 17 when stomach tube 14 is put into patient's body.Housing 18 comprises the lower house 20 that joins on the upper shell 22, and this upper shell 22 totally limits passage 44, and this passage 44 is suitable for admitting the CO that is positioned over vertically wherein
2Detector 17.Housing 18 comprises the first relative port 30 and second port 32, wherein first port 30 is communicated with the adapter 34 of the band agnail that is used to be connected to Y shape port connector 16, second port 32 is communicated with tubular connector 36, this tubular connector 36 is suitable for engaging the device of syringe 50 (Fig. 8) or similar extracting air, the device of described extracting air is used for by passage 44 extracting airs, such as corrugated tube or soft ball, this will be discussed below in more detail.
Referring to Fig. 7, Y-connection 16 comprises hollow body 51, and this hollow body limits first supporting leg 52 and second supporting leg 54 that is communicated with master port 56.Stomach tube 14 passes master port 56 and is anchored in this main body 51, thereby is communicated with second supporting leg 54 from the air-flow of the near-end of stomach tube 14.When assembling, CO
2The adapter 34 of the band agnail of indicator 12 engages with second supporting leg 54 of Y shape port connector 16, thereby is communicated with the passage 44 that is limited by housing 18 from the air-flow of stomach tube 14.
Referring to Fig. 6, CO
2Detector 17 comprises detector element 24, this detector element 24 is a colorimetric preferably, has the pH sensitive chemical chemical compound in the suitable dye of being comprised in, so that when the far-end of stomach tube 14 is put into patient's respiratory tract, the result that the inflow of the carbon dioxide that carries as patient respiratory causes colorimetric pH to change, the color change of colorimetric.Lower house 20 limits filter support 46, and this filter support supporting filter 28, this filter 28 provide and be used to filter any pollutant air-flow or fluidic device.Preferably, filter 28 is made by polypropylene.
In addition, detector element 24 is by the supporting device that has dividing plate 26 carryings that are positioned at filter 28 tops, and this supporting device 26 that has dividing plate allows air-flow contact detector element 24 when air passes passage 44.CO
2 Detector 17 be built into the air-flow 42 that makes by passage 44 and detector 17 between the first relative port 30 and second port 32 basically vertically, as shown in Figure 5.
The present invention contemplates, and housing 18 is built at CO
2Detector 17 minimizes the dead band in the passage 44 when being positioned over wherein vertically.Preferably, than prior art carbon dioxide indicator shown in Figure 15 cubic centimetres volume is arranged, housing 18 has 2 cubic centimetres volume.Like this, between the first relative port 30 and second port 32, taked basically vertically path by the air-flow 42 of chamber 44, because this air-flow 42 has been taked basically path vertically between the first relative port 30 and second port 32, therefore the dead band minimum that this air-flow is turned to makes the exposure of 24 pairs of carbon dioxide of detector element obtain optimization.Combine with the more small size of minimized dead band and housing 18, this optimization that detector element 24 is carried out with respect to the exposure that is entrained in the carbon dioxide in the axial flow 42 provides detector element 24 means of indication carbon dioxide existence fast that make.
As further diagram, upper shell 22 comprises transparent part 40, and this transparent part has the graduation display 38 along its peripheral part, and this graduation display has color diagram, is used for determining by CO
2The existence whether color that detector 17 shows by transparent part 40 indicates carbon dioxide by detector element 24 whether.Preferably, graduation display 38 comprises color coding table 60, and this color coding table comprises a color gamut, and the change color of the colorimetric of this color gamut and detector element 24 is compared, and exists so that determine carbon dioxide.More preferably, described color gamut comprises the yellow that the indication carbon dioxide exists, and purple indication carbon dioxide does not exist.Though the existence of detector element 24 indication carbon dioxide of the present invention is because CO
2Indicator 12 lacks the device of any kind that is used to measure the carbon dioxide degree, and detector element 24 does not provide there is quantized measurement in carbon dioxide.
In the placement step process of stomach tube, the far-end of stomach tube 14 is inserted by patient's nose or oral cavity.If use aperture stomach tube 14, then the seal wire (not shown) can be arranged in the tube chamber of stomach tube 14, so that stomach tube 14 is fed in patient's the esophagus, and use macropore stomach tube 14 not need to use such seal wire.In order to assemble, with CO
2The adapter 34 of the band agnail of indicator 12 is attached on second supporting leg 54 of Y shape port connector 16, and syringe 50 is attached on the tubular connector 36, so that obtain reading when stomach tube 14 is inserted into by patient pharyngeal.In the process of inserting stomach tube 14, user activates syringe 50 by pulling back plunger 100, thereby passes CO as shown in Figure 5
2 Indicator 12 is set up air-flow 42.The foundation of the air-flow 42 that should combine with minimum volume that is limited by housing 18 and dead band has further strengthened CO
2Indicator 12 detects the ability by the carbon dioxide existence of stomach tube 14.
Pass patient's esophagus in order to ensure the far-end of stomach tube 14, rather than trachea, user is observed the detector element 24 that is used to indicate the carbon dioxide existence by transparent part 40.If the far-end of stomach tube is sent into trachea, along with the colorimetric yellowing, the carbon dioxide that exists with enough amounts will be detected by detector element 24, thereby give the user signal, the far-end of stomach tube 14 by location of mistake in patient's respiratory system.Stomach tube 14 can partly be extracted out and be inserted once more then, walks around the trachea opening and enters patient's esophagus up to the far-end of stomach tube 14.The placement of this stomach tube 14 will be indicated does not almost have or does not have carbon dioxide near the far-end of stomach tube 14.
Be arranged in patient's esophagus and be communicated with in case stomach tube 14 correctly is placed to the far-end of stomach tube 14,, if desired, be fed in the small intestinal,, when using seal wire, can remove seal wire at this place so stomach tube 14 can further be fed with patient's stomach.Can utilize then by first supporting leg 52 of Y shape port connector 16 and send into liquid food, feed to the patient so that make it to be transported to the common technology of small intestinal by stomach tube 14.
Should understand that though the specific embodiment of the present invention that has illustrated and described can be made amendment to it, this is obvious to one skilled in the art when not breaking away from the spirit and scope of the present invention from foregoing.Such change and modification can drop in the scope of the present invention and instruction that limits as appended claim.
Claims (13)
1, indicator (10) is placed in a kind of medical treatment, comprising:
Rectangular case (18), described rectangular case (18) limit the passage (44) that is communicated with one first relative port (30) and one second port (32), and described rectangular case (18) also comprises the transparent part (40) that is used to observe described passage (44); And
Carbon dioxide indicator (17), this carbon dioxide indicator is arranged in the described passage (44) vertically, described carbon dioxide indicator (17) is suitable for detecting the existence of carbon dioxide, described rectangular case (18) is built into and limits a low dead band in this rectangular case (18), wherein said relative first port (30) and second port (32) and described channel connection (44) are communicated with to become to make crosses that described relative first port (30) enters and from second opposed end mouth (32) discharge by the air communication of described passage (44), and wherein said air communication cross described relatively first port (30) and the described passage (44) of the described rectangular case (18) between second port (32) basically by along axial lead.
2, indicator (10) is placed in medical treatment as claimed in claim 1, it is characterized in that described carbon dioxide indicator (17) comprises detector element (24), and this detector element is suitable for changing color when having carbon dioxide.
3, indicator (10) is placed in medical treatment as claimed in claim 1, it is characterized in that described carbon dioxide indicator (17) also comprises the supporting device (26) that engages with detector element (24).
4, indicator (10) is placed in medical treatment as claimed in claim 1, it is characterized in that the described first relative port (30) is integral with described rectangular case (18) and is suitable for engaging with a supporting leg of a Y shape port connector (16).
5, indicator (10) is placed in medical treatment as claimed in claim 4, it is characterized in that, the described first relative port (30) is the adapter (34) of band agnail.
6, indicator (10) is placed in medical treatment as claimed in claim 1, it is characterized in that, the described second relative port (32) limits tubular connector (36), and this tubular connector is suitable for operationally engaging with the device (50) that is used for from described rectangular case (18) extracting air.
7, indicator (10) is placed in medical treatment as claimed in claim 6, it is characterized in that the described device (50) that is used for extracting air comprises corrugated tube.
8, indicator (10) is placed in medical treatment as claimed in claim 6, it is characterized in that the described device (50) that is used for extracting air comprises syringe.
9, a kind of gastric tube placement device (10) comprising:
Stomach tube (14) limits the tube chamber that is communicated with a distal openings and a proximal openings; And
Carbon dioxide indicator (17), be placed in the rectangular case (18), described rectangular case (18) limits a passage (44) that is communicated with one first relative port (30) and one second port (32), carbon dioxide indicator (17) crosses described passage (44) placement simultaneously, described carbon dioxide indicator (17) is built into and limits a low dead band in described passage (44), one in described relative first port (30) and second port (32) is suitable for engaging with described stomach tube (14), so that between the described passage (44) of the described distal openings of described stomach tube (14) and described rectangular case (18), set up fluid flow communication, wherein between described relative first port (30) and second port (32), set up vertically an air-flow basically.
10, gastric tube placement device as claimed in claim 9 (10) is characterized in that, described relative first port (30) and in second port (32) another are suitable for engaging with the device (50) that is used for from described rectangular case (18) extracting air.
11, a kind of method that is used to detect gastric tube placement comprises:
A) provide the Y shape port connector (16) of a hollow, this Y shape port connector limits first supporting leg (52) and second supporting leg (54) that is communicated with master port (56);
B) make one in a carbon dioxide indicator (12) and described first and second supporting legs to engage, this carbon dioxide indicator comprises rectangular case (18), this rectangular case (18) limits the passage (44) that is communicated with one first relative port (30) and one second port (32), described rectangular case (18) also comprises the transparent part (40) that is used to observe described passage (44), a carbon dioxide indicator (17) crosses described passage (44) setting, and described carbon dioxide indicator (17) is suitable for detecting the existence of carbon dioxide and is built into and limit a minimum dead band in described passage (44);
C) set up fluid flow communication between in described relative first port (30) and second port (32) and described first supporting leg (52) and second supporting leg (54);
D) stomach tube (14) is engaged with the described master port (56) of described Y shape port connector (16);
E) make a device (50) that is used for extracting air join described rectangular case (18) to; And
F) from described rectangular case (18) extracting air, described carbon dioxide indicator (17) causes the axial air-flow in basic upper edge thereby pass described relative first port (30) and the described passage (44) between second port (32), so that can detect the existence of carbon dioxide in described air-flow.
12, method as claimed in claim 11 also comprises seal wire is inserted into step in patient's esophagus so that be convenient to described stomach tube (14) by another insertion in the described supporting leg (52,54).
13, method as claimed in claim 12 is characterized in that, described seal wire is operationally joined on the described stomach tube (14).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US94575804A | 2004-09-21 | 2004-09-21 | |
| US10/945,758 | 2004-09-21 | ||
| US11/139,118 | 2005-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101014311A true CN101014311A (en) | 2007-08-08 |
Family
ID=38701466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580030156 Pending CN101014311A (en) | 2004-09-21 | 2005-09-19 | Gastric tube placement indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101014311A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491872A (en) * | 2011-02-22 | 2014-01-01 | 皇家飞利浦有限公司 | Real-time airway check status indicator |
| CN110339446A (en) * | 2019-08-12 | 2019-10-18 | 杨豪 | A kind of tracheal catheter convenient for positioning |
| CN112566684A (en) * | 2018-07-31 | 2021-03-26 | 维亚埃尔医疗股份有限公司 | Ventilation mask |
-
2005
- 2005-09-19 CN CN 200580030156 patent/CN101014311A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491872A (en) * | 2011-02-22 | 2014-01-01 | 皇家飞利浦有限公司 | Real-time airway check status indicator |
| CN103491872B (en) * | 2011-02-22 | 2016-05-04 | 皇家飞利浦有限公司 | Air flue checks status indicator in real time |
| US9730633B2 (en) | 2011-02-22 | 2017-08-15 | Koninklijke Philips N.V. | Real-time airway check status indicator |
| CN112566684A (en) * | 2018-07-31 | 2021-03-26 | 维亚埃尔医疗股份有限公司 | Ventilation mask |
| US11857710B2 (en) | 2018-07-31 | 2024-01-02 | Sunmed Group Holdings, Llc | Ventilation mask |
| CN110339446A (en) * | 2019-08-12 | 2019-10-18 | 杨豪 | A kind of tracheal catheter convenient for positioning |
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Open date: 20070808 |