CN112472882A - Thoracentesis drainage device - Google Patents
Thoracentesis drainage device Download PDFInfo
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- CN112472882A CN112472882A CN202011350182.7A CN202011350182A CN112472882A CN 112472882 A CN112472882 A CN 112472882A CN 202011350182 A CN202011350182 A CN 202011350182A CN 112472882 A CN112472882 A CN 112472882A
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- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims description 20
- 239000011324 bead Substances 0.000 claims description 19
- 239000003814 drug Substances 0.000 claims description 17
- 239000000945 filler Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000010985 leather Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 4
- 229960002897 heparin Drugs 0.000 claims description 4
- 229920000669 heparin Polymers 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 210000000115 thoracic cavity Anatomy 0.000 abstract description 4
- 210000003128 head Anatomy 0.000 description 12
- 210000005077 saccule Anatomy 0.000 description 12
- 241000521257 Hydrops Species 0.000 description 5
- 206010030113 Oedema Diseases 0.000 description 5
- 208000002151 Pleural effusion Diseases 0.000 description 5
- 229940079593 drug Drugs 0.000 description 4
- 206010051986 Pneumatosis Diseases 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 206010048725 Hydropneumothorax Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M25/0075—Valve means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
- A61M2025/0079—Separate user-activated means, e.g. guidewires, guide tubes, balloon catheters or sheaths, for sealing off an orifice, e.g. a lumen or side holes, of a catheter
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Gastroenterology & Hepatology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Child & Adolescent Psychology (AREA)
- Pathology (AREA)
- External Artificial Organs (AREA)
Abstract
本发明涉及一种胸腔穿刺引流装置，包括穿刺导管、引流导管以及引流袋，穿刺导管的尾端连接引流导管，引流导管连接引流袋，引流导管包括连接引流袋的后导管段、与穿刺导管连接的前导管段以及连接后导管段和前导管段的连接装置，连接装置包括三通连接管，三通连接管包括第一端管、第二端管以及第三端管，三通连接管的第一端管、第二端管分别连接前导管段和后导管段，三通连接管的第三端管设有抽液连接管头，抽液连接管头配有封闭盖，抽液连接管头连接有注射器，第一端管内设有允许前导管段向三通连接管的内腔单向导通的第一单向阀，第二端管内设有允许三通连接管的内腔向后导管段单向导通的第二单向阀。具有结构可靠，操作简单方便的优点。
The invention relates to a thoracic cavity puncture and drainage device, comprising a puncture catheter, a drainage catheter and a drainage bag. The tail end of the puncture catheter is connected to a drainage catheter, and the drainage catheter is connected to the drainage bag. The front conduit section and the connecting device connecting the rear conduit section and the front conduit section, the connecting device includes a three-way connecting pipe, and the three-way connecting pipe includes a first end pipe, a second end pipe and a third end pipe. The first end pipe and the second end pipe are respectively connected to the front conduit section and the rear conduit section, the third end pipe of the three-way connecting pipe is provided with a liquid suction connection pipe head, the liquid suction connection pipe head is equipped with a closed cover, and the liquid suction connection pipe The head is connected with a syringe, the first end tube is provided with a first one-way valve that allows the front conduit section to be unidirectionally connected to the inner cavity of the three-way connecting tube, and the second end tube is provided with an inner cavity backward conduit that allows the three-way connecting tube The second one-way valve with one-way conduction. It has the advantages of reliable structure and simple and convenient operation.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a thoracentesis drainage device.
Background
In clinic, the thoracoabdominal cavity puncture drainage operation is often carried out, the effusion is drained out for the patient with the thoracoabdominal cavity filled with the thoracoabdominal cavity so as to relieve the pain of the patient, and part of the patients need to puncture repeatedly. The puncture drainage device adopted clinically at present consists of a puncture needle, an injector and a rubber tube connecting the puncture needle and the injector. When the operation is performed, after the syringe is fully pumped with effusion, the rubber tube is clamped by the hemostatic forceps, the syringe is separated from the rubber tube, the effusion in the syringe is discharged, and then the rubber tube is connected again.
To solve the above problems, as disclosed in the document with chinese patent No. cn201622192. x, entitled pleuroperitoneal cavity puncture drainage device (publication No. CN 205796117U), the main structure thereof is: including puncture catheter, 2cc cylinder, drainage tube and drainage bag, the drainage tube includes three branch pipes of branch pipe A, branch pipe B and branch pipe C that communicate each other, branch pipe A's mouth of pipe is equipped with pagoda joint, set up the through-hole with the inside intercommunication of branch pipe A on the pagoda joint, be equipped with murphy's burette and speed governing switch on the branch pipe B, the drainage bag is connected to branch pipe B's lower extreme, be equipped with the leakage fluid dram on the drainage bag, the inside check valve that is equipped with of branch pipe C, branch pipe C's mouth of pipe is equipped with the heparin cap, 2cc cylinder injection end with puncture catheter cooperation, the injection end of 2cc cylinder is inserted and is established in the puncture catheter, the barrel cooperation of pagoda joint and 2cc cylinder on the drainage tube. However, for some patients with much effusion, the effusion still needs to be extracted manually and quickly in the early stage, and drainage operation is adopted in the later stage; above-mentioned structure utilizes the barrel of cylinder as the connecting piece, and the drainage needs later stage equipment operation, still is conventional drawing liquid operation earlier stage, uses inconveniently, and the smooth wall of cylinder inner wall for supplying the piston action, and when its equipment that is used for the later stage, the firm reliability of equipment can not obtain the abundant guarantee.
Disclosure of Invention
The invention aims at: in order to overcome the defects in the prior art, the invention provides the thoracocentesis drainage device which is reliable in structure and simple and convenient to operate.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a thoracentesis drainage device, includes puncture catheter, drainage catheter and drainage bag, puncture catheter's trailing end connection drainage catheter, drainage bag, its characterized in that are connected to drainage catheter: the drainage catheter comprises a rear catheter section, a front catheter section and a connecting device, wherein the rear catheter section is connected with the drainage bag, the front catheter section is connected with the puncture catheter, the connecting device is connected with the rear catheter section and the front catheter section and comprises a three-way connecting pipe, the three-way connecting pipe comprises a first end pipe, a second end pipe and a third end pipe, the first end pipe and the second end pipe of the three-way connecting pipe are respectively connected with the front catheter section and the rear catheter section, the third end pipe of the three-way connecting pipe is provided with a liquid pumping connecting pipe head, the liquid pumping connecting pipe head is provided with a sealing cover, the liquid pumping connecting pipe head is connected with an injector, a first one-way valve allowing the front catheter section to conduct towards the inner cavity of the three-way connecting pipe in one way is arranged in the first end pipe, and a second.
By adopting the technical scheme, when liquid is required to be pumped, the sealing cover on the liquid pumping connector head is uncovered, the syringe is connected to the liquid pumping connector head, the accumulated liquid is pushed into the drainage bag after being pumped, the syringe is repeatedly operated to realize rapid pumping of the accumulated liquid, and the sealing cover is used for sealing the liquid pumping connector head after the pumping of the accumulated liquid is finished, so that normal drainage operation is realized; the drainage tube has the advantages of convenient effusion suction operation, no need of middle assembly operation, convenient operation and capability of ensuring the reliability of integral connection of the drainage tube.
Preferably, a valve core mechanism for opening and closing the third end pipe is arranged in the three-way connecting pipe, the second one-way valve has a one-way conduction state and a normally open state, the valve core mechanism synchronously drives the second one-way valve to be in the normally-open state when the third end pipe is closed, and the second one-way valve is in the one-way conduction state when the third end pipe is opened. Under this structural design, adopt case mechanism to carry out on-off control with third end pipe, convenient operation avoids when pulling out the syringe operation, and the unexpected outflow of hydrops in the tee bend coupling pipe simultaneously when pulling out the drawing liquid operation, can realize the hydrops drainage time through first check valve realization protection against the current, reduces hydrops drainage resistance, guarantees that the drainage operation is reliable with the control at normal open state with the second check valve control.
Preferably, the first end pipe and the second end pipe are located on the same axis, the third end pipe is located in the radial direction of the axis where the first end pipe and the second end pipe are distributed, the valve core mechanism comprises a cylindrical valve core main body, the cylindrical valve core main body is axially and slidably matched in a pipe cavity of the three-way connecting pipe, flow guide holes communicated with a pipe orifice of the third end pipe and an inner cavity of the cylindrical valve core main body and a port closing part closing the pipe orifice of the third end pipe are axially distributed in the cylindrical valve core main body, the flow guide holes are correspondingly matched with the pipe orifice of the third end pipe, a pushing part used for pushing and driving the second one-way valve to a normally open state is arranged on one port of the cylindrical valve core main body facing the second one-way valve in the axial direction, and the cylindrical valve core main body is matched with an operating assembly used for driving the cylindrical. Under this structural design, the tube-shape case main part relies on circumference lateral wall and axial position, realizes same tube-shape case main part synchro control third end pipe and second check valve, has simple structure compactness, the reliable operation advantage.
Preferably, the second one-way valve comprises an opening and closing bead, a valve seat opening is formed in the second end pipe, the opening and closing bead is correspondingly matched with the valve seat opening, a valve core spring for driving the opening and closing bead to tend to close the valve seat opening is abutted to the opening and closing bead, and the pushing part is in pushing fit with the opening and closing bead. Under the structural design, the one-way conduction is realized by adopting the spherical opening and closing ball matched with the valve core spring, so that the second one-way valve is driven to be normally controlled; but also can better adapt to the operations of sucking and injecting the effusion by the injector, and the operation process is reliable.
Preferably, the pushing part comprises a thimble, a positioning concave hole is arranged on the opening and closing bead, and the thimble is movably matched in the positioning concave hole in a positioning mode. Under this structural design for the cylindrical valve core body is reliably with opening and close the pearl cooperation.
Preferably, first check valve includes the rubber support leather cup of diaphragm and bowl form, is equipped with in the first terminal pipe and corresponds complex sealed seat mouth with the diaphragm, and bellied end orientation sealed seat mouth on the rubber support leather cup, the bottom elasticity of rubber support leather cup is contradicted on the diaphragm to the elasticity reset force of diaphragm seal fit on sealed seat mouth is provided, is equipped with the fretwork hole that supplies the fluid to pass through on the rubber support leather cup. Under this structural design, first check valve adopts diaphragm formula structure, and rubber supports the leather cup and provides the elasticity holding power, and it is little to have automatic opening power, and the fluid of being convenient for passes through, and rubber supports the leather cup and is the bowl form, has the prevention that can be better against current.
Preferably, the operating assembly comprises a knob, a sector gear is arranged on the knob, a strip-shaped tooth surface is arranged on the cylindrical valve core main body, and the strip-shaped tooth surface is in meshing fit with the sector gear. Under this structural design, rotate the knob, reach drive tube-shape case main part axial displacement through sector gear and bar flank of tooth to accomplish corresponding action, have simple structure, easy operation convenient advantage.
Preferably, the opening end position of the inner part of the puncture catheter, which is placed into the human body, is provided with a drainage port position adjusting saccule into which [ small 2] filler can be injected, the drainage port position adjusting saccule is made of a flexible membrane and can be flat without the filler, a thin catheter which is connected with the drainage port position adjusting saccule and is used for injecting and extracting the filler in the drainage port position adjusting saccule into and out of the drainage port position adjusting saccule is embedded in the puncture catheter, and the thin catheter is provided with a catheter connector. Under the structural design, the puncture end position of the puncture catheter is provided with the drainage port position adjusting saccule, the drainage port position adjusting saccule is empty and is flatly attached to the puncture catheter in the initial puncture stage and during tube drawing operation, so that the puncture and tube drawing operation are convenient, after the puncture catheter is placed in a human body, fillers are injected into the drainage port position adjusting saccule, different position states of the drainage port are realized according to different densities of the injected fillers [ small 3], if high-density liquid is filled, the inner port of the drainage tube body is always positioned at the bottom of pleural effusion due to the action of gravity, and the effect of draining the effusion to the maximum degree is achieved; injecting air and other objects with lighter density to float upwards, so that pneumatosis in the hydropneumothorax is preferentially discharged; the position of the drainage port is adjusted to adjust the saccule to inject fillers with different densities, so that the drainage port is guided to move up and down, and drainage tube retention at a specific anatomical position can be performed under ultrasonic guidance.
Preferably, the inner opening end of the puncture catheter placed into the human body is provided with a plurality of liquid inlet branch pipes. Under this structural design, stretch out after the drainage tube main part is inserted, increase the coverage area at drainage position, because of there often solid foreign matters such as the organization that drops in the pleural effusion simultaneously, block inside opening, need change the whole strip drainage tube, this design can prevent the frequent change drainage tube that this condition leads to.
Preferably, the front guide pipe section is provided with a medicine injection branch pipe and a speed regulating switch, the medicine injection branch pipe is provided with a heparin cap, and the speed regulating switch is positioned between the medicine injection branch pipe and the three-way connecting pipe. Under this structural design, realize carrying out the medicine injection operation through the drainage tube, when the medicine is injected, can realize closing the pipeline UNICOM of honeycomb duct in injection branch pipe rear through the speed governing switch, realize the reliable thorax of infusing of medicine.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a thoracentesis drainage device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a connecting device according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a one-way valve state diagram of a second one-way valve of a coupling device according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a second thoracentesis drainage device according to an embodiment of the present invention.
Detailed Description
Referring to the attached drawings 1-4, the thoracic cavity puncture drainage device disclosed by the invention comprises a puncture catheter 1, a drainage catheter 2 and a drainage bag 3, wherein the tail end of the puncture catheter 1 is connected with the drainage catheter 2, the drainage catheter 2 is connected with the drainage bag 3, the drainage catheter 2 comprises a rear catheter section 21 connected with the drainage bag 3, a front catheter section 22 connected with the puncture catheter 1 and a connecting device connected with the rear catheter section 21 and the front catheter section 22, the connecting device comprises a three-way connecting pipe 4, the three-way connecting pipe 4 comprises a first end pipe 41, a second end pipe 42 and a third end pipe 43, the first end pipe 41 and the second end pipe 42 of the three-way connecting pipe 4 are respectively connected with the front catheter section 22 and the rear catheter section 21, the third end pipe 43 of the three-way connecting pipe 4 is provided with a liquid pumping connecting pipe head, the liquid pumping pipe head is provided with a sealing cover (not shown in the figure), the liquid pumping pipe head is connected with, a first one-way valve 7 which allows the front catheter section 22 to be communicated with the inner cavity of the three-way connecting pipe 4 in a one-way mode is arranged in the first end pipe 41, and a second one-way valve 8 which allows the inner cavity of the three-way connecting pipe 4 to be communicated with the rear catheter section 21 in a one-way mode is arranged in the second end pipe 42. When liquid is required to be pumped, the sealing cover on the liquid pumping connector head is uncovered, the syringe 5 is connected to the liquid pumping connector head, the accumulated liquid is pushed into the drainage bag 3 after being pumped, the syringe 5 is repeatedly operated to realize rapid pumping of the accumulated liquid, and the sealing cover is used for sealing the liquid pumping connector head after the pumping of the accumulated liquid is finished, so that normal drainage operation is realized; the drainage tube has the advantages of convenient effusion suction operation, no need of middle assembly operation, convenient operation and capability of ensuring the reliability of integral connection of the drainage tube.
Further, in order to better adapt to the effusion pumping operation and the drainage operation, a valve core mechanism for opening and closing the third end pipe 43 is arranged in the three-way connecting pipe 4, the second check valve 8 has a one-way conduction state and a normally open state, the valve core mechanism synchronously drives the second check valve 8 to be in the normally open state when the third end pipe 43 is closed, and the second check valve 8 is in the one-way conduction state when the third end pipe 43 is opened. Adopt case mechanism to carry out on-off control with third end pipe 43, convenient operation avoids when pulling out the operation of syringe 5, and the unexpected outflow of long-pending liquid in three way connection pipe 4, simultaneously when pulling out the drawing liquid operation, can control second check valve 8 at the normal open state, when realizing the hydrops drainage, realizes protection against the current through first check valve 7, avoids under the design of two check valves, the drainage resistance is too big, reduces hydrops drainage resistance, guarantees that the drainage operation is reliable.
Meanwhile, the first end pipe 41 and the second end pipe 42 are located on the same axis, the third end pipe 43 is located in the radial direction of the axis where the first end pipe 41 and the second end pipe 42 are distributed, the valve core mechanism includes a cylindrical valve core main body 61, the cylindrical valve core main body 61 is axially and slidably matched in the pipe cavity of the three-way connecting pipe 4, a flow guide hole 611 communicating the pipe orifice of the third end pipe 43 and the inner cavity of the cylindrical valve core main body 61 and a port closing part 612 closing the pipe orifice of the third end pipe 43 are axially distributed on the cylindrical valve core main body 61, the flow guide hole 611 is correspondingly matched with the pipe orifice of the third end pipe 43, a pushing part for pushing and driving the second check valve 8 to a normally open state is arranged in the axial direction of the cylindrical valve core main body 61 facing to one port of the second check valve 8, and the cylindrical valve core main body 61 is matched with an operating component for driving the cylindrical. The cylindrical valve core main body 61 realizes that the same cylindrical valve core main body 61 synchronously controls the third end pipe 43 and the second check valve 8 by means of the circumferential side wall and the axial position, and has the advantages of simple and compact structure and reliable operation. The cylindrical valve core main body is convenient for the circulation of accumulated liquid. The operating assembly comprises a knob 621, a sector gear 622 is arranged on the knob 621, a strip-shaped tooth surface 623 is arranged on the cylindrical valve core main body 61, and the strip-shaped tooth surface 623 is meshed with the sector gear 622. The knob 621 is rotated to drive the cylindrical valve core main body 61 to move axially through the sector gear 622 and the strip-shaped tooth surface 623, so that corresponding action is completed. Of course, as a possible solution of the present invention, the operating assembly may also employ a push button or the like.
In this embodiment, the second check valve 8 includes an opening and closing bead 81, a valve seat opening 82 is formed in the second end pipe 42, the opening and closing bead 81 is correspondingly matched with the valve seat opening 82, the opening and closing bead 81 is abutted to a valve core spring 83 for driving the opening and closing bead 81 to tend to close the valve seat opening 82, and the pushing portion is in pushing fit with the opening and closing bead 81. A Y-shaped seat 421 supporting the valve core spring 83 is arranged in the second end pipe 42, and a spherical opening and closing ball 81 is matched with the valve core spring 83 to realize one-way conduction, so that the second one-way valve 8 is driven to be normally opened and controlled conveniently; but also can better adapt to the operations of sucking and injecting the effusion by the injector 5, and the operation process is reliable. The pushing part comprises a thimble 613, a positioning concave hole 811 is arranged on the opening and closing bead 81, and the thimble 613 is movably matched in the positioning concave hole 811 in a positioning way. So that the cylindrical valve core body and the opening and closing bead 81 are reliably matched.
The first check valve 7 includes a diaphragm 71 and a bowl-shaped rubber support cup 72, a sealing seat 73 correspondingly matched with the diaphragm 71 is arranged in the first end pipe 41, the bottom of a protrusion on the rubber support cup 72 faces the sealing seat 73, the bottom end of the rubber support cup 72 elastically abuts against the diaphragm 71 and provides an elastic restoring force for hermetically matching the diaphragm 71 on the sealing seat 73, and a hollow hole 721 for allowing a fluid to pass through is formed in the rubber support cup 72. Under this structural design, first check valve 7 adopts diaphragm 71 formula structure, and rubber support leather cup 72 provides the elasticity holding power, and it is little to have automatic opening power, and the fluid of being convenient for passes through, and rubber support leather cup 72 is the bowl form, has the counter-current that prevents that can be better.
Because pleural effusion has suspension force, the puncture tube is a flexible tube, and is easy to float above the effusion to influence normal drainage, and pneumatosis possibly exists in the thoracic cavity, a large amount of pneumatosis can make the lung obviously compress, and the diastole is blocked, in order to solve the problem, the position of the inner opening end of the puncture catheter 1 which is placed into the human body is provided with a drainage port position adjusting balloon 1-1 which can be filled with [ small 4] filler, the filler can be water, air or other density liquid, the drainage port position adjusting balloon 1-1 is made of a flexible film and can be flat without the filler, a thin catheter 1-11 which is connected with the drainage port position adjusting balloon 1-1 and is used for filling and extracting the filler in the drainage port position adjusting balloon 1-1 into and out the drainage port position adjusting balloon 1-1 is embedded in the puncture catheter 1, the thin guide pipe 1-11 is provided with a pipe connector 1-12. The puncture position of the puncture catheter 1 is provided with a drainage port position adjusting saccule 1-1, the drainage port position adjusting saccule 1-1 is empty and is flatly attached to the puncture catheter 1 during the initial puncture period and the catheter drawing operation, so that the puncture and the catheter drawing operation are convenient, after the puncture catheter 1 is arranged in a human body, fillers are injected into the drainage port position adjusting saccule 1-1, and different positions of a drainage port can be realized according to different densities of the injected fillers, such as high-density liquid filling, so that the internal port of the drainage catheter body is always positioned at the bottom of pleural effusion due to the gravity action, and the effect of draining the effusion to the maximum degree is achieved; air and other objects with lighter density can be injected to float upwards, so that the accumulated air in the hydropneumothorax is preferentially discharged; the position of the drainage port is adjusted by adjusting the position of the drainage port, the balloon is injected with fillers with different densities, the drainage port is guided to be adjusted in the up-and-down position, and the drainage tube at a specific anatomical position can be retained under the guidance of ultrasound.
The patient usually needs to perform the drug injection operation, and to facilitate the operation, the front catheter segment 22 is provided with a drug injection branch pipe 221 and a speed regulating switch 222, the drug injection branch pipe 221 is provided with a heparin cap, and the speed regulating switch 222 is located between the drug injection branch pipe 221 and the three-way connecting pipe 4. The medicine injection branch pipe 221 can be internally provided with a one-way conduction valve to prevent liquid in the guide pipe from flowing back to the main branch pipe 221, and when medicine is injected, the pipeline communication of the guide pipe behind the medicine injection branch pipe can be closed through a speed regulation switch, so that the medicine can be reliably injected into the thoracic cavity.
As solid foreign matters such as cast-off tissues and the like often exist in the pleural effusion, the internal opening of the puncture catheter 1 is blocked, and the whole drainage tube needs to be replaced, as shown in fig. 5, another embodiment of the invention has the difference that a plurality of liquid inlet branch tubes 11 are arranged at the internal opening end of the puncture catheter 1 which is placed into the human body. The drainage tube body extends out after being inserted, the coverage area of a drainage part is increased, and meanwhile, the drainage tube can be prevented from being frequently replaced due to the design.
Claims (10)
1. The utility model provides a thoracentesis drainage device, includes puncture catheter, drainage catheter and drainage bag, puncture catheter's trailing end connection drainage catheter, drainage bag, its characterized in that are connected to drainage catheter: the drainage catheter comprises a rear catheter section, a front catheter section and a connecting device, wherein the rear catheter section is connected with the drainage bag, the front catheter section is connected with the puncture catheter, the connecting device is connected with the rear catheter section and the front catheter section and comprises a three-way connecting pipe, the three-way connecting pipe comprises a first end pipe, a second end pipe and a third end pipe, the first end pipe and the second end pipe of the three-way connecting pipe are respectively connected with the front catheter section and the rear catheter section, the third end pipe of the three-way connecting pipe is provided with a liquid pumping connecting pipe head, the liquid pumping connecting pipe head is provided with a sealing cover, the liquid pumping connecting pipe head is connected with an injector, a first one-way valve allowing the front catheter section to conduct towards the inner cavity of the three-way connecting pipe in one way is arranged in the first end pipe, and a second.
2. The thoracentesis drainage device of claim 1, wherein: the three-way connecting pipe is internally provided with a valve core mechanism for opening and closing the third end pipe, the second one-way valve has a one-way conduction state and a normally open state, the valve core mechanism synchronously drives the second one-way valve to be in the normally-on state when the third end pipe is closed, and the second one-way valve is in the one-way conduction state when the third end pipe is opened.
3. The thoracentesis drainage device of claim 2, wherein: the valve core mechanism comprises a cylindrical valve core main body, the cylindrical valve core main body is axially and slidably matched in a pipe cavity of the three-way connecting pipe, flow guide holes communicated with a pipe orifice of the third end pipe and an inner cavity of the cylindrical valve core main body and a port closing part for closing the pipe orifice of the third end pipe are axially distributed in the cylindrical valve core main body, the flow guide holes are correspondingly matched with the pipe orifice of the third end pipe, a pushing part used for pushing and driving the second one-way valve to be in a normally open state is arranged towards one port of the second one-way valve in the axial direction of the cylindrical valve core main body, and the cylindrical valve core main body is matched with an operating assembly used for driving the cylindrical valve core main body to axially move.
4. The thoracentesis drainage device of claim 3, wherein: the second one-way valve comprises an opening and closing bead, a valve seat opening is formed in the second end pipe, the opening and closing bead is correspondingly matched with the valve seat opening, a valve core spring for driving the opening and closing bead to tend to close the valve seat opening is abutted to the opening and closing bead, and the pushing part is in pushing fit with the opening and closing bead.
5. The thoracentesis drainage device of claim 4, wherein: the pushing part comprises a thimble, a positioning concave hole is arranged on the opening and closing bead, and the thimble is movably matched in the positioning concave hole in a positioning mode.
6. The thoracentesis drainage device of claim 3, wherein: the operating assembly comprises a knob, a sector gear is arranged on the knob, a strip-shaped tooth surface is arranged on the cylindrical valve core main body, and the strip-shaped tooth surface is meshed and matched with the sector gear.
7. The thoracentesis drainage device of claim 1, wherein: first check valve includes the rubber support leather cup of diaphragm and bowl form, is equipped with in the first terminal pipe and corresponds complex sealed seat mouth with the diaphragm, and the bellied end is towards sealed seat mouth on the rubber support leather cup, and the bottom elasticity that the rubber supported the leather cup is contradicted on the diaphragm to provide the elasticity reset force of cooperating the diaphragm seal on sealed seat mouth, be equipped with the fretwork hole that supplies the fluid to pass through on the rubber support leather cup.
8. The thoracentesis drainage device of claim 1, wherein: the utility model discloses a puncture catheter, including puncture catheter, drainage mouth position adjustment sacculus, puncture catheter, flexible membrane, the inside open end position of putting into the human body that puncture catheter put into the human body is equipped with the drainage mouth position adjustment sacculus that can pour into the filler into, and drainage mouth position adjustment sacculus is made for the flexible membrane and can becomes flat form flat at no filler, buries underground in the puncture catheter with drainage mouth position adjustment sacculus be connected, be used for to pour into in the drainage mouth position adjustment sacculus and take out the thin pipe of drainage mouth position adjustment sacculus filler, be equipped.
9. The thoracentesis drainage device of claim 1, wherein: the inner opening end of the puncture catheter which is put into the human body is provided with a plurality of liquid inlet branch pipes.
10. The thoracentesis drainage device of claim 1, wherein: and the front guide pipe section is provided with a medicine injection branch pipe and a speed regulating switch, the medicine injection branch pipe is provided with a heparin cap, and the speed regulating switch is positioned between the medicine injection branch pipe and the three-way connecting pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350182.7A CN112472882B (en) | 2020-11-26 | 2020-11-26 | Thoracocentesis drainage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011350182.7A CN112472882B (en) | 2020-11-26 | 2020-11-26 | Thoracocentesis drainage device |
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| CN112472882A true CN112472882A (en) | 2021-03-12 |
| CN112472882B CN112472882B (en) | 2023-03-14 |
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| Publication number | Publication date |
|---|---|
| CN112472882B (en) | 2023-03-14 |
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