CN210904348U - Bronchoalveolar lavage catheter device - Google Patents

Bronchoalveolar lavage catheter device Download PDF

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Publication number
CN210904348U
CN210904348U CN201921158689.5U CN201921158689U CN210904348U CN 210904348 U CN210904348 U CN 210904348U CN 201921158689 U CN201921158689 U CN 201921158689U CN 210904348 U CN210904348 U CN 210904348U
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piston
cooperation
cavity
normal saline
spring
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CN201921158689.5U
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Chinese (zh)
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张建明
托尼·万卡
刘娟
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Hantech Medical Device Co ltd
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Hantech Medical Device Co ltd
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Abstract

The utility model relates to the technical field of alveolar lavage catheters, in particular to a bronchoalveolar lavage catheter device, which comprises a handle main body, a control push button, a vacuumizing piston, a first spring, a normal saline perfusion piston, a second spring, a catheter, a vacuum exhaust pipe and a normal saline exhaust pipe, wherein the control push button is connected with the catheter in a matching way, the handle main body is internally provided with a first assembly cavity, a second assembly cavity, a third assembly cavity, a first flow cavity, a second flow cavity, a first limit groove and a second limit groove, the front end of the first spring is in a matching and abutting connection with the inner cavity wall of the first assembly cavity, the rear end of the first spring is in a matching and abutting connection with the vacuumizing piston, the front end of the second spring is in a matching and abutting connection with the inner cavity wall of the second assembly cavity, and the rear end of the first spring is in a matching and abutting connection with the normal saline perfusion piston, the utility model has reasonable structural design, not only can effectively reduce the cost of medical, prevent infection, can reduce the uncomfortable sense in the lavage process moreover, improved lavage efficiency.

Description

Bronchoalveolar lavage catheter device
Technical Field
The utility model relates to an alveolar lavage pipe technical field especially relates to a bronchoalveolar lavage pipe device.
Background
Bronchoalveolar lavage is to repeatedly lavage and recover the lung segment or sub-lung segment below the bronchus by using sterile normal saline through a fiber bronchoscope, and a series of detection and analysis are carried out on the lung segment or sub-lung segment, so that the property characteristics and the activity degree of the lower respiratory tract lesion are obtained, and the determination of diagnosis is facilitated. The traditional mode is through in a pipe pours into people's bronchus alveolar into, observe the water level through interior endoscope, can retrieve after the bronchus alveolar fills up water, consequently cause the patient easily to chock water, and retrieve inadequately, must pour into normal saline in a large number, consequently it is very high to doctor's technical requirement, and fill water back in addition, normal saline can flow to other places, the normal saline of retrieving also has by the condition that other places polluted, can't carry out accurate pathology and seek.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to shortcoming and weak point that bronchoalveolar lavage catheter exists among the prior art, provide one kind and can reduce the cost of medical production articles for use, prevent to infect, the uncomfortable of effectual reduction lavage in-process feels, improved the bronchoalveolar lavage catheter device of lavage efficiency.
In order to solve the technical problem, the utility model discloses a following technical scheme can solve:
the utility model provides a bronchoalveolar lavage catheter device, including the handle main part, connect the manipulation of handle main part upper end push away turn round, set up the evacuation piston in the handle main part, connect the first spring at evacuation piston front end, pour into the piston with the normal saline of evacuation piston parallel arrangement, connect the second spring that fills the piston front end at normal saline, with the pipe that handle main part middle part cooperation is connected and connect the vacuum extraction pipe and the normal saline extraction pipe in handle main part bottom, the manipulation pushes away turns round and is connected with the pipe cooperation, handle main part inside be equipped with first assembly chamber of being connected with the cooperation of evacuation piston, with second assembly chamber of being connected with the cooperation of normal saline infusion piston, with third assembly chamber of being connected with the pipe cooperation, be used for communicateing the first flow chamber of evacuation piston and vacuum extraction pipe, be used for communicateing the second flow chamber of pouring into piston and normal saline extraction pipe of vacuum, With the spacing first spacing groove of being connected of evacuation piston cooperation and fill the spacing second spacing groove of being connected of piston cooperation with normal saline, first spring front end is contradicted with the inner chamber wall cooperation in first assembly chamber and is connected, and the rear end is contradicted with the evacuation piston cooperation and is connected, second spring front end is contradicted with the inner chamber wall cooperation in second assembly chamber and is connected, and the rear end is contradicted with the normal saline filling piston cooperation and is connected, the both sides in third assembly chamber still are equipped with respectively and are led to the chamber and lead to the chamber with the second that the normal saline filling piston cooperation set up with the first chamber that leads to that the evacuation piston cooperation set up.
Preferably, the method comprises the following steps: the vacuumizing piston comprises a vacuum piston rod, a first sleeve sealing ring sleeved on the outer ring of the vacuum piston rod, a first rebound limiting block fixedly connected to the side portion of the vacuum piston rod, a first current limiting channel arranged on the vacuum piston rod and corresponding to the first flow cavity, and a first limiting platform arranged at the front end of the vacuum piston rod, wherein the first rebound limiting block is in limited connection with the first limiting groove in a matched mode, and the first limiting platform is in conflict connection with the first spring in a matched mode.
Preferably, the method comprises the following steps: normal saline fills the piston including filling the piston rod, cup jointing second sleeve sealing washer, the fixed connection that fills the piston rod outer lane is at the second stopper of kick-backing of filling the piston rod lateral part, seting up at filling the piston rod and correspond the second current-limiting way that sets up and set up at the spacing platform of the second of filling the piston rod front end with the second flow chamber, the second is kick-backed stopper and the spacing connection of second spacing groove cooperation, the spacing platform of second is contradicted with the cooperation of second spring and is connected.
Preferably, the method comprises the following steps: the guide pipe comprises a sleeve pipe which is connected with the third assembling cavity in a matched mode, a three-cavity guide pipe which is sleeved with the inner wall of the sleeve pipe, and a guide steel wire which is connected with the three-cavity guide pipe in a matched and penetrating mode, the guide steel wire is connected with the control push button in a matched mode, and the front end of the sleeve pipe is further provided with a hole which is communicated with the first through cavity and the second through cavity in a matched mode.
The utility model discloses beneficial effect: the utility model has the advantages of reasonable design, utilize to control to push away to turn round and promote three chamber pipes and stretch into in the alveolar, conveniently fill and extract normal saline to the alveolar, fill piston roof pressure second spring through continuous compression normal saline earlier during the use, the activity of second resilience stopper is spacing in second spacing inslot simultaneously, and then gets into second restricted flow way through the second flow chamber with the saline in the normal saline pump line, and in the second leads to the chamber and gets into three chamber pipes, loosens normal saline and fills the piston after accomplishing the filling of alveolar; during the extraction, through the first spring of continuous compression evacuation piston roof pressure, it is spacing at first spacing inslot activity simultaneously to first resilience stopper, and then the first chamber that leads to of flowing through in the three chamber pipes of recovery liquid after will taking, get into the second through the current-limiting way and flow the chamber, finally flow in vacuum take-out behind the pipe to the household utensils in, through above operation process, not only can effectively reduce the cost of medical production articles for use, prevent the infection, and can reduce the uncomfortable sense of lavage in-process, the lavage efficiency has been improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded schematic view of the present invention.
Fig. 3 is a schematic diagram of the internal structure of the present invention.
Fig. 4 is a schematic view of the main structure of the handle of the present invention.
Reference numerals: 1. a handle body; 2. operating a push button; 3. vacuumizing a piston; 4. a first spring; 5. the piston is filled with physiological saline; 6. a second spring; 7. a conduit; 8. vacuum tube-drawing; 9. pumping a tube by using the physiological saline; 10. a first assembly chamber; 11. a second assembly chamber; 12. a third assembly chamber; 13. a first flow chamber; 14. a second flow chamber; 15. a first limit groove; 16. a second limit groove; 17. a first through cavity; 18. a second through cavity; 30. a vacuum piston rod; 31. a first sleeve seal ring; 32. a first rebound limiting block; 33. a first flow limiting channel; 34. a first limit table; 50. filling a piston rod; 51. a second sleeve seal ring; 52. a second rebound stopper; 53. a second flow limiting channel; 54. a second limit table; 70. a sleeve; 71. a three-lumen catheter; 72. guiding the steel wire; 73. and (6) opening holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in figures 1 to 4, the bronchoalveolar lavage catheter 7 device comprises a handle body 1, a control push button 2 connected to the upper end of the handle body 1, an evacuation piston 3 arranged in the handle body 1, a first spring 4 connected to the front end of the evacuation piston 3, a saline infusion piston 5 arranged parallel to the evacuation piston 3, a second spring 6 connected to the front end of the saline infusion piston 5, a catheter 7 connected to the middle of the handle body 1 in a matching manner, and a vacuum tube 8 and a saline tube 9 connected to the bottom end of the handle body 1, wherein the control push button 2 is connected to the catheter 7 in a matching manner, a first assembly cavity 10 connected to the evacuation piston 3 in a matching manner, a second assembly cavity 11 connected to the saline infusion piston 5 in a matching manner, a third assembly cavity 12 connected to the catheter 7 in a matching manner, a first flow cavity 13 for communicating the evacuation piston 3 with the vacuum tube 8, a second flow cavity 13, a third flow cavity for communicating the evacuation piston 3 with the saline tube 8, and a third flow cavity for controlling the vacuum, A second flow cavity 14 for communicating the saline infusion piston 5 with the saline infusion tube 9, a first limit groove 15 in matched limit connection with the vacuumizing piston 3, and a second limit groove 16 in matched limit connection with the saline infusion piston 5, wherein the front end of the first spring 4 is in matched abutting connection with the inner cavity wall of the first assembling cavity 10, the rear end of the first spring is in matched abutting connection with the vacuumizing piston 3, the front end of the second spring 6 is in matched abutting connection with the inner cavity wall of the second assembling cavity 11, the rear end of the second spring is in matched abutting connection with the saline infusion piston 5, and a first through cavity 17 in matched arrangement with the vacuumizing piston 3 and a second through cavity 18 in matched arrangement with the saline infusion piston 5 are respectively arranged on two sides of the third assembling cavity 12; the third assembling cavity 12 is arranged in the middle of the handle main body 1 and is positioned in the central axis direction of a connecting line of the first assembling cavity 10 and the second assembling cavity 11, so that the extraction process of the physiological saline is facilitated; by the above structure, the positive pressure fluid delivery source and the negative pressure vacuum suction source which do not need hands can be realized, and the process does not need to be held or operated by a user, the vacuum pumping piston 3 and the physiological saline infusion piston 5 both adopt self-operated piston injectors, the plungers of the self-operated piston injectors are pre-loaded under compression, the fluid is pre-filled, the output of the fluid is normally closed, when the output is remotely opened, the pressurized fluid is delivered in the direction, and the vacuum acts on the pumping liquid in the direction away from a patient, preferably, a micro negative pressure pump can be arranged to generate vacuum to be connected with the vacuum pumping pipe 8, or an actuator is arranged to automatically retract the syringe plungers; the three-cavity catheter 71 is pushed by the manipulation push button 2 to extend into the alveolus so as to conveniently fill and extract normal saline into the alveolus, when the device is used, the normal saline filling piston 5 is continuously compressed to press against the second spring 6, meanwhile, the second resilience limiting block 52 is movably limited in the second limiting groove 16, and then saline in the normal saline pumping pipe 9 enters the second flow limiting channel 53 through the second flow cavity 14 and enters the three-cavity catheter 71 through the second through cavity 18, and the normal saline filling piston 5 is loosened after filling of the alveolus is completed; during extraction, the vacuumizing piston 3 is continuously compressed to press the first spring 4, meanwhile, the first rebound limiting block 32 moves in the first limiting groove 15 for limiting, and then collected normal saline recovery liquid flows through the three-cavity catheter 71, flows through the first through cavity 17, enters the first flow cavity 13 through the first limiting flow passage 33, and finally flows into the vacuum exhaust pipe 8 and then enters a utensil; the purpose of the lavage may be to clean the area therapeutically, for example after infection or surgery, but also to obtain a biological sample for diagnostic purposes. Typically, the catheter communicates with the body cavity through a naturally occurring or surgically created passageway to the body cavity, through which fluid is infused and removed from the body cavity. For example, sterile saline may be injected and then simply removed to clean the body cavity. For example, sterile saline may be injected and extracted, and the extracted sample will contain cells or other biological material for diagnostic analysis. Alternatively, for example, sterile saline may be injected with a therapeutic agent, such as an antibiotic, coagulant, antiplatelet agent, analgesic, chemotherapy, stem cells, elastin and other stimulants, biolubricant or other substance or formulation to treat the area.
In this embodiment, the vacuum pumping piston 3 includes a vacuum piston rod 30, a first sleeve sealing ring 31 sleeved on an outer ring of the vacuum piston rod 30, a first resilient limiting block 32 fixedly connected to a side portion of the vacuum piston rod 30, a first limiting channel 33 provided on the vacuum piston rod 30 and corresponding to the first flow chamber 13, and a first limiting table 34 provided at a front end of the vacuum piston rod 30, the first resilient limiting block 32 is in a matching and limiting connection with the first limiting groove 15, the first limiting table 34 is in a matching and abutting connection with the first spring 4, the first sleeve sealing ring 31 is sleeved on an outer ring of the vacuum piston rod 30 to seal the vacuum piston rod 30 and the first assembly chamber 10, so as to prevent brine from permeating into the first assembly chamber 10, the first resilient limiting block 32 is used for limiting the vacuum piston rod 30 in the first limiting groove 15 during continuous compression or rebound, and the first limiting channel 33 and the first through chamber 17 are enabled to flow from limiting to through flow during continuous compression, thereby facilitating the process of taking the recovered liquid out of the alveolus.
In this embodiment, the saline perfusion piston 5 includes a perfusion piston rod 35, a second sleeve sealing ring 51 sleeved on an outer ring of the perfusion piston rod 35, a second rebound limiting block 52 fixedly connected to a side portion of the perfusion piston rod 35, a second limiting channel 53 provided on the perfusion piston rod 35 and corresponding to the second flow cavity 14, and a second limiting table 54 provided at a front end of the perfusion piston rod 35, the second rebound limiting block 52 is in matched limiting connection with the second limiting groove 16, the second limiting table 54 is in matched abutting connection with the second spring 6, the second sleeve sealing ring 51 connected to the outer ring of the perfusion piston rod 35 seals the perfusion piston rod 35 and the second assembly cavity 11, and prevents saline from permeating into the second assembly cavity 11; the second rebound stopper 52 is used for stopping the filling piston rod 35 in the second stopper groove 16 during continuous compression or rebound, and the second through cavity 18 and the second flow limiting channel 53 are limited from flow limiting to flow limiting during continuous compression, so that the normal saline is conveniently transported to the alveolus.
In this embodiment, the catheter 7 includes a sleeve 70 connected to the third assembling cavity 12 in a matching manner, a three-cavity catheter 71 sleeved to an inner wall of the sleeve 70, and a guiding steel wire 72 connected to the three-cavity catheter 71 in a matching manner, the guiding steel wire 72 is connected to the manipulating knob 2 in a matching manner, the front end of the sleeve 70 is further provided with an opening 73 arranged in a matching manner and penetrating the first through cavity 17 and the second through cavity 18, the three-cavity catheter 71 is provided with a liquid outlet cavity communicated to the first through cavity 17 in a matching manner, a liquid inlet cavity communicated to the second through cavity 18 in a matching manner, and a through hole for the guiding steel wire 72 to pass through, the manipulating knob 2 is pushed in use, so that the guiding steel wire 72 matches with the three-cavity catheter 71 to guide the movement of the three-cavity catheter 71, the three-cavity catheter 71 can smoothly enter the alveolar sac, the area of the sleeve 70 can be softened to create a bendable area, so as to facilitate the deflection of the tip, or reducing wall thickness using chemicals, or by other techniques; the guide wire 72 can be inserted and removed from the tri-lumen catheter 71 by conventional guidewire exchange techniques, and the catheter 7 can be inserted into the body passage and body cavity to the desired depth, depending on the size of the patient, to achieve the desired lung position.
The working principle of the utility model is as follows:
when the normal saline is filled, the filling piston rod 35 is continuously compressed, the second flow cavity 14 and the second flow limiting channel 53 can move from the flow limiting state to the flow limiting state, the second spring 6 is pressed, meanwhile, the second rebound limiting block 52 movably limits in the second limiting groove 16, the saline in the normal saline pumping pipe 9 enters the second flow limiting channel 53 through the second flow cavity 14 and then enters the three-cavity conduit 71 through the second through cavity 18, the normal saline filling piston 5 is released after the filling of the alveoli is completed, and the second flow cavity 14 and the second limiting channel can recover from the flow limiting state to the flow limiting state under the action of the self elasticity of the second spring 6; during extraction, the vacuum piston rod 30 is continuously compressed to press the first spring 4, the first flow cavity 13 and the first flow limiting channel 33 can move from a flow limiting state to a flow passing state, meanwhile, the first resilience limiting block 32 moves in the first limiting groove 15 for limiting, and then collected saline recovery liquid flows through the first through cavity 17 in the three-cavity catheter 71, enters the first flow cavity 13 through the first flow limiting channel 33, and finally flows into the vacuum extraction tube 8 to a vessel, and the telescopic structures of the saline perfusion piston 5 and the vacuum extraction piston 3 are respectively matched with the handle main body 1, so that a doctor can select the processes of saline injection, saline recovery and saline storage according to an alveolar lavage process, and the effects of convenience in use and infection prevention are achieved; a heating element may be used to heat the sterile saline to a desired temperature during the saline infusion process; wherein, the normal saline pumping pipe 9 can be externally connected with a filling valve for refilling the normal saline filling piston 5 with normal saline through a refilling pipeline, and the normal saline is injected into the patient through the catheter 7; a fluid delivery syringe is required on the front side of the bronchoalveolar lavage catheter, and then the connection saline suction tube 9 can be filled to a required volume so as to facilitate the flushing sequence injection.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (4)

1. A bronchoalveolar lavage catheter device characterized by: including handle main part, connect in handle main part upper end the manipulation push-turn, set up evacuation piston in handle main part, connect the first spring at evacuation piston front end, pour into the piston with the normal saline of evacuation piston parallel arrangement, connect the second spring that normal saline fills the piston front end, the pipe of being connected with handle main part middle part cooperation and connect vacuum pump tube and normal saline pump tube in handle main part bottom, the manipulation push-turn is connected with the pipe cooperation, handle main part inside be equipped with first assembly chamber of being connected with the cooperation of evacuation piston, with the second assembly chamber that normal saline fills the piston cooperation and is connected, with the third assembly chamber of being connected of pipe cooperation, be used for communicateing the first class chamber of evacuation piston and vacuum pump tube, be used for communicateing the second class chamber of normal saline filling piston and normal saline pump tube, with the first spacing groove of the spacing connection of evacuation piston cooperation and with the spacing second limit of being connected of normal saline filling piston cooperation Position the groove, first spring front end is contradicted with the inner chamber wall cooperation of first assembly chamber and is connected, and the rear end is contradicted with the evacuation piston cooperation and is connected, second spring front end is contradicted with the inner chamber wall cooperation of second assembly chamber and is connected, and the rear end is contradicted with the normal saline fills piston cooperation and is connected, the both sides in third assembly chamber still are equipped with respectively and are led to the chamber and lead to the chamber with the second that the normal saline fills piston cooperation and set up with the first chamber that leads to that the evacuation piston cooperation set up.
2. A bronchoalveolar lavage catheter device according to claim 1, characterized in that: the vacuumizing piston comprises a vacuum piston rod, a first sleeve sealing ring sleeved on the outer ring of the vacuum piston rod, a first rebound limiting block fixedly connected to the side portion of the vacuum piston rod, a first current limiting channel arranged on the vacuum piston rod and corresponding to the first flow cavity, and a first limiting platform arranged at the front end of the vacuum piston rod, wherein the first rebound limiting block is in limited connection with the first limiting groove in a matched mode, and the first limiting platform is in conflict connection with the first spring in a matched mode.
3. A bronchoalveolar lavage catheter device according to claim 1, characterized in that: normal saline fills the piston including filling the piston rod, cup jointing second sleeve sealing washer, the fixed connection that fills the piston rod outer lane is at the second stopper of kick-backing of filling the piston rod lateral part, seting up at filling the piston rod and correspond the second current-limiting way that sets up and set up at the spacing platform of the second of filling the piston rod front end with the second flow chamber, the second is kick-backed stopper and the spacing connection of second spacing groove cooperation, the spacing platform of second is contradicted with the cooperation of second spring and is connected.
4. A bronchoalveolar lavage catheter device according to claim 1, characterized in that: the guide pipe comprises a sleeve pipe which is connected with the third assembling cavity in a matched mode, a three-cavity guide pipe which is sleeved with the inner wall of the sleeve pipe, and a guide steel wire which is connected with the three-cavity guide pipe in a matched and penetrating mode, the guide steel wire is connected with the control push button in a matched mode, and the front end of the sleeve pipe is further provided with a hole which is communicated with the first through cavity and the second through cavity in a matched mode.
CN201921158689.5U 2019-07-23 2019-07-23 Bronchoalveolar lavage catheter device Active CN210904348U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921158689.5U CN210904348U (en) 2019-07-23 2019-07-23 Bronchoalveolar lavage catheter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921158689.5U CN210904348U (en) 2019-07-23 2019-07-23 Bronchoalveolar lavage catheter device

Publications (1)

Publication Number Publication Date
CN210904348U true CN210904348U (en) 2020-07-03

Family

ID=71367577

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921158689.5U Active CN210904348U (en) 2019-07-23 2019-07-23 Bronchoalveolar lavage catheter device

Country Status (1)

Country Link
CN (1) CN210904348U (en)

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