CN111658836A - Peritoneoscope aspirator - Google Patents
Peritoneoscope aspirator Download PDFInfo
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- CN111658836A CN111658836A CN202010591521.4A CN202010591521A CN111658836A CN 111658836 A CN111658836 A CN 111658836A CN 202010591521 A CN202010591521 A CN 202010591521A CN 111658836 A CN111658836 A CN 111658836A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
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- 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
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
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Abstract
The invention relates to the technical field of medical suction or suction and delivery instruments, in particular to a laparoscopic suction apparatus; the device comprises a fixed tube, a suction tube, a water inlet tube, a negative pressure tube, a plugging mechanism and an extrusion mechanism, wherein the suction tube is arranged on the fixed tube. The suction tube comprises an inner tube body and an outer tube body, the water inlet tube and the negative pressure tube are communicated with one end of the inner tube body, the inner tube body is fixedly inserted into the outer tube body, a cavity is formed between the inner tube body and the outer tube body, a through hole communicated with the outside is formed in the bottom of the cavity, the inner tube body is provided with an extrusion hole and a step hole, the plugging mechanism comprises a tension spring and a plugging rod, the plugging rod is installed in the through hole in a sliding sealing mode, and the tension spring is sleeved on the outer surface of the plugging rod. The extrusion mechanism comprises an extrusion rod and a pressure spring, the extrusion rod is inserted in the extrusion hole in a sealed sliding mode, and the pressure spring is sleeved on the extrusion rod. The invention aims to solve the problems that when the suction apparatus sucks blood clots, the suction apparatus blocks a pipeline, so that the operation time is prolonged and the operation infection of a patient is increased.
Description
Technical Field
The invention relates to the technical field of medical suction or suction and delivery instruments, in particular to a laparoscopic suction apparatus.
Background
Laparoscopic techniques are representative of minimally invasive surgery and are becoming an important direction for medical development, and most abdominal organ surgeries can be performed laparoscopically. In the operation process, because tissues are cut and separated, fat liquefaction and damage to small blood vessels are caused, and the oozing blood and the oozing liquid generated by the operation can not be sucked by using a suction apparatus.
In laparoscopic surgery, an aspirator is one of the most important instruments. The aspirator is mainly used for aspirating and removing the contents of hemorrhage, exudate, pus and thoracic organs in the operation, so that the operation is clear, and the pollution chance is reduced. At present, the aspirator used in the laparoscopic surgery is a long tube type, a suction and flushing switch is arranged outside the body, and the aspirator enters and exits the abdominal cavity from a puncture hole of the abdominal wall. The existing suction apparatus is manufactured into the negative pressure state of the suction head by a certain method, so that substances outside the suction head can be extruded to the suction head by atmospheric pressure, thereby completing the suction effect.
However, the diameter of the existing suction apparatus is less than 5 mm, the suction apparatus is often blocked by sucking blood clots during suction, and the suction apparatus is forced to stop suction, even the suction apparatus needs to be repeatedly taken out to remove blockage, thereby prolonging the operation time and increasing the risk of surgical infection of patients.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a laparoscopic aspirator, which aims to solve the problems that when the aspirator sucks, blood clots are sucked to block a pipeline, the aspirator is forced to stop sucking, the operation time is prolonged, and the operation infection of a patient is increased.
In order to achieve the purpose, the invention adopts the following technical scheme: a laparoscopic aspirator comprises a fixed tube, an aspiration tube, a water inlet tube and a negative pressure tube, wherein the aspiration tube is detachably arranged on the fixed tube, and the laparoscopic aspirator also comprises a plugging mechanism and an extrusion mechanism;
the suction tube comprises an inner tube body and an outer tube body, the water inlet tube and the negative pressure tube are both communicated with one end, close to the fixed tube, of the inner tube body, the inner tube body is fixedly inserted into the outer tube body, a cavity is arranged between the inner tube body and the outer tube body, a through hole communicated with the outside is formed in the bottom of the cavity, the inner tube body is provided with an extrusion hole and a stepped hole, the extrusion hole is located at one end, far away from the fixed tube, of the inner tube body, and the stepped hole is located at one end, close to the fixed tube, of the inner tube body;
the plugging mechanism comprises a tension spring and a plugging rod, the plugging rod is installed in the through hole in a sliding and sealing mode, one end, far away from the outside, of the plugging rod is a wedge-shaped end, the tension spring is sleeved on the outer surface of the plugging rod, and two ends of the tension spring are fixedly connected with the outer tube body and the outer surface of the plugging rod respectively;
the extrusion mechanism comprises an extrusion rod and a pressure spring, the extrusion rod is inserted in the extrusion hole in a sealed sliding mode, the pressure spring is sleeved on the extrusion rod, two ends of the pressure spring are fixedly connected with the inner pipe body and the extrusion rod respectively, and the extrusion rod is abutted to the wedge-shaped end of the plugging rod in a natural state.
When the technical scheme is adopted, the operation fixing tube guides the suction tube to penetrate through the established abdominal cavity hole to enter the abdominal cavity of a patient, the negative pressure in the negative pressure tube drives the inside of the inner tube body to generate suction force, and then the liquid in the abdominal cavity of the patient is absorbed, when the blood clot blocks the inner tube body, the suction force generated by the negative pressure enters the cavity through the step hole, the tension spring is stretched, the plugging rod moves towards the cavity, and further the through hole is opened, the liquid can enter the cavity through the through hole and is absorbed by the negative pressure tube, meanwhile, when the plugging rod moves, the extrusion rod is pushed to move towards the tube body of the inner tube body, the pressure spring is compressed, so that the blood clot blocking the inner tube body is blocked by extrusion, the blood is extruded to be reduced, the influence of the suction force of the suction tube is received, and the blood.
The extrusion hole is uniformly distributed from the bottom to the middle of the inner pipe body, the pushing mechanisms are slidably mounted in the corresponding extrusion holes, a sliding groove is formed in the bottom of each pushing mechanism, a notch of the sliding groove extends from one end of each pushing mechanism to the other end of each sliding groove, the top of each sliding rod is slidably mounted in the corresponding sliding groove, the bottom of each sliding rod is fixedly mounted at the top of the plugging rod or the top of each pushing mechanism, and when the sliding rods are attached to the inner pipe body, the pushing mechanisms extend into the inner pipe body.
Through the setting of pushing and pressing mechanism and slide bar, when the extrusion stem removed, the extrusion stem drove the slide bar and removed together, when the extrusion stem extrusion blood clot removed in to interior body, the slide bar drove pushing and pressing mechanism and removed for pushing and pressing mechanism extrudees the blood clot once more, thereby makes the blood clot can pass through interior body smoothly.
Further, the pushing mechanism comprises a push rod, a sliding spring, a wedge-shaped column and a reset piece; the push rod is slidably mounted in the extrusion hole, the sliding groove is formed in the bottom of the push rod, a notch of the sliding groove extends from one end of the push rod to the other end of the push rod, a blind hole is formed in the bottom of the sliding groove, the sliding spring is located at the top of the push rod, two ends of the sliding spring are fixedly connected with the inner tube body and the push rod respectively, a reset groove with a notch facing the sliding rod is formed in the bottom of the extrusion hole, which is located at the push rod, and the groove top of the reset groove is opposite to the blind hole; wedge post fixed mounting in on the push rod, and be located the sliding tray, reset a slidable mounting in reset the inslot, reset the piece can with wedge post butt, under the natural state, reset the piece butt and go into in the blind hole.
Through push rod, sliding spring, wedge post and the setting that resets, when the slide bar slides the outer wall of interior body, the wedge post promotes to reset and moves down for sliding spring drives the push rod and removes to the internal blood clot piece of interior pipe, thereby extrudees the blood clot piece, makes the blood clot piece dispersion, receives the blood clot piece simultaneously and receives the inside internal removal of suction.
Further, the piece that resets includes reset spring and spacing post, spacing post slidable mounting in reset inslot, spacing post towards the one end of wedge post is the wedge form, reset spring's both ends respectively with the tank bottom in reset groove with the bottom fixed connection of spacing post.
Through the setting of reset spring and spacing post, when the wedge post promoted spacing post, the spacing post of wedge post extrusion for reset spring is compressed, and spacing post moves down, thereby makes sliding spring drive push rod pass the extrusion hole, and the push rod of being convenient for extrudes the clot better.
Furthermore, one side of the extrusion hole, which is far away from the cavity, is provided with an elastic film, and the film is attached to the orifice of the extrusion hole in a natural state.
Set up elastic tectorial membrane, avoid push rod and blood clot direct contact, can extrude the blood clot better.
The air vent mechanism is inserted into the stepped hole in a sealing mode and can open or close the stepped hole.
Through the setting of ventilation mechanism, when inner pipe body is blockked up, ventilation mechanism receives the suction of negative pressure, and then opens the step hole, and then when avoiding inner pipe body not blockked up, too much suction enters into in the cavity.
Furthermore, the ventilation mechanism comprises a fixed plate and a fixed spring, the flaring of the step hole faces the tubular shaft of the inner pipe body, the fixed plate is inserted into the step hole in a sliding mode, and two ends of the fixed spring are fixedly connected with the fixed plate and the inner pipe body respectively.
The fixing plate and the fixing spring are arranged, and the fixing spring is stretched under the influence of the suction force on the fixing plate, so that the step hole is opened.
Further, the top of the fixed pipe is fixedly provided with an operating clamp.
The setting of operating forceps is when carrying out the imbibition to patient's abdominal cavity, and the medical staff of being convenient for fixes the fixed pipe better.
Further, the bottom of the fixed pipe is fixedly provided with a three-way pipe, and three ports of the three-way pipe are respectively communicated with the water inlet pipe, the negative pressure pipe and the suction pipe.
Through the setting of three-way pipe, avoid negative pressure pipe and inlet tube to produce the interference, can control the negative pressure pipe better and absorb liquid or the intaking of inlet tube.
The beneficial effect that this scheme produced is:
1. through interior body, outer body, the extension spring, the shutoff pole, the setting of gag lever post and pressure spring, when the internal body is stopped up to the clot, the suction that the negative pressure produced enters into the cavity through the step hole in, the extension spring is stretched, the shutoff pole removes to the cavity, and then make the through-hole opened, liquid can be absorbed by the negative pressure pipe in entering into the cavity through the through-hole, and simultaneously, the shutoff pole is when removing, promote the gag lever post and remove to the internal removal of body of internal body, the pressure spring is compressed, thereby the clot of internal body is stopped up in the extrusion, make the clot reduce by the extrusion, receive the influence of the suction of attracting the pipe, make the clot can be absorbed smoothly.
2. Through the setting of push rod, sliding spring, wedge post, piece and slide bar that resets, the stripper drives the slide bar and removes together, is out of shape by the stripper extrusion when the clot to when the inside of inside body removes, the wedge post promotes the piece that resets and moves down, makes sliding spring drive the push rod and removes to the internal blood clot of interior pipe, thereby extrudees the clot once more, makes the clot disperse, receives the clot to receive the suction to remove in the inside body simultaneously.
Drawings
Fig. 1 is an overall view illustrating a laparoscopic aspirator according to the present invention.
Fig. 2 is a front view of a suction tube in a laparoscopic suction apparatus of the present invention.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a front view of a venting mechanism in a laparoscopic aspirator of the present invention.
Reference numbers in the drawings of the specification:
the method comprises the following steps: the device comprises a fixed tube 10, a suction tube 20, an inner tube 21, an outer tube 22, a cavity 23, a water inlet tube 30, a negative pressure tube 40, a blocking mechanism 50, a tension spring 51, a blocking rod 52, a squeezing mechanism 60, a squeezing rod 61, a compression spring 62, a pushing mechanism 70, a push rod 71, a sliding spring 72, a wedge-shaped column 73, a reset piece 74, a reset spring 741, a limiting column 742, a sliding rod 80, a coating film 90, a ventilation mechanism 101, a fixed plate 102, a fixed spring 103, an operating clamp 104 and a three-way tube 105.
Detailed Description
The following is further detailed by way of specific embodiments:
as shown in fig. 1 to 4, a laparoscopic aspirator includes a fixing tube 10, an aspiration tube 20, a water inlet tube 30, a negative pressure tube 40, a blocking mechanism 50, a squeezing mechanism 60, a pushing mechanism 70, a sliding rod 80, and a coating film 90. An operating clamp 104 is fixedly mounted on the top of the fixed pipe 10. The operating forceps 104 are provided to facilitate better fixation of the tube 10 by medical staff while aspirating the abdominal cavity of the patient. The suction tube 20 is detachably mounted to the bottom of the fixed tube 10 by a screw.
Wherein, the bottom of the fixed tube 10 is fixedly provided with a three-way tube 105, and three ports of the three-way tube 105 are respectively communicated with the water inlet tube 30, the negative pressure tube 40 and the suction tube 20. Through the arrangement of the three-way pipe 105, the interference between the negative pressure pipe 40 and the water inlet pipe 30 is avoided, and the absorption of liquid by the negative pressure pipe 40 or the water inlet of the water inlet pipe 30 can be better controlled.
Specifically, as shown in fig. 2 and 4, the suction tube 20 includes an inner tube 21 and an outer tube 22, a water inlet tube 30 and a negative pressure tube 40 are both communicated with the top of the inner tube 21, the negative pressure tube 40 is communicated with an external device for generating negative pressure, and the water inlet tube 30 is communicated with an external irrigation device. The inner pipe body 21 is fixedly inserted into the outer pipe body 22, a cavity 23 is arranged between the inner pipe body 21 and the outer pipe body 22, a through hole communicated with the outside is formed in the bottom of the cavity 23, the inner pipe body 21 is provided with an extrusion hole and a step hole, the extrusion hole is located in the lower half portion of the inner pipe body 21, and the step hole is located at the top end of the fixed pipe 10. Wherein, the extrusion hole is equipped with a plurality of, and a plurality of extrusion holes are from the bottom of inner tube body 21 to the middle part equipartition setting.
Wherein, the elastic coating film 90 is fixedly installed on the inner wall of the inner tube 21, and the coating film 90 is attached to the orifice of the extrusion hole in a natural state. The elastic covering film 90 is arranged to prevent blood clots from entering the extrusion holes, so that the extrusion mechanism 60 can extrude the blood clots better.
Specifically, as shown in fig. 4, the ventilation mechanism 101 is hermetically inserted into the stepped hole, and the ventilation mechanism 101 can open or close the stepped hole. The fixing plate 102 and the fixing spring 103 are arranged such that the fixing spring 103 is elongated by the fixing plate 102 being affected by the suction force, thereby causing the stepped hole to be opened.
The ventilation mechanism 101 includes a fixing plate 102 and a fixing spring 103, a flared end of the stepped hole faces the tubular shaft of the inner tube 21, the fixing plate 102 is slidably inserted into the stepped hole, and two ends of the fixing spring 103 are respectively fixedly connected with the fixing plate 102 and the inner tube 21. The fixing plate 102 and the fixing spring 103 are arranged such that the fixing spring 103 is elongated by the fixing plate 102 being affected by the suction force, thereby causing the stepped hole to be opened.
Specifically, as shown in fig. 2 and 4, the blocking mechanism 50 includes a tension spring 51 and a blocking rod 52, the blocking rod 52 is slidably and hermetically installed in the through hole, the upper end of the blocking rod 52 is a wedge-shaped end, the tension spring 51 is sleeved on the outer surface of the blocking rod 52, and two ends of the tension spring 51 are respectively fixedly connected with the outer surfaces of the outer tube 22 and the blocking rod 52.
Specifically, the extrusion mechanism 60 includes an extrusion rod 61 and a pressure spring 62, the extrusion rod 61 is inserted in the extrusion hole in a sealed sliding manner, the pressure spring 62 is sleeved on the extrusion rod 61, two ends of the pressure spring 62 are respectively fixedly connected with the inner tube body 21 and the extrusion rod 61, and the extrusion rod 61 is abutted to the wedge-shaped end of the plugging rod 52 in a natural state.
As shown in fig. 2 and 3, the pressing mechanism 70 is provided with a plurality of groups, a plurality of pressing mechanisms 70 are slidably mounted in the corresponding extrusion holes, and the bottom of the pressing mechanism 70 is provided with a sliding groove, the notch of the sliding groove extends from the left end to the right end of the pressing mechanism 70.
Wherein, a plurality of sliding rods 80 are provided. The top of each sliding rod 80 is slidably mounted in the sliding groove, the bottom of the sliding rod 80 is fixedly mounted on the top of the plugging rod 52 or the top of the pushing mechanism 70, when the sliding rod 80 is attached to the inner tube 21, the pushing mechanism 70 extends into the inner tube 21, and the pushing mechanism 70 opens the elastic coating 90. Through the setting of pushing mechanism 70 and slide bar 80, when extrusion pole 61 removes, extrusion pole 61 drives slide bar 80 and removes together, when extrusion pole 61 extrudees the blood clot and removes to interior body 21, slide bar 80 drives pushing mechanism 70 and removes for pushing mechanism 70 extrudees the blood clot again, thereby makes the blood clot can smoothly pass through interior body 21.
Specifically, the urging mechanism 70 includes a push rod 71, a slide spring 72, a wedge post 73, and a return member 74. The push rod 71 is slidably mounted in the extrusion hole, a sliding groove is formed in the bottom of the push rod 71, a groove opening of the sliding groove extends from the left end to the right end of the push rod 71, and a blind hole is formed in the bottom of the right side of the sliding groove. The sliding spring 72 is located at the top of the push rod 71, two ends of the sliding spring 72 are fixedly connected with the inner tube body 21 and the push rod 71 respectively, a reset groove with a notch facing the sliding rod 80 is arranged at the bottom of the extrusion hole located at the push rod 71, and the groove top of the reset groove is opposite to the blind hole.
Wherein, the wedge-shaped column 73 is fixedly arranged on the push rod 71 and is positioned in the sliding groove. Reset piece 74 slidable mounting resets in the groove, resets 74 and can with wedge post 73 butt, and under the natural state, resets 74 and supports into in the blind hole. Through the setting of push rod 71, sliding spring 72, wedge post 73 and reset piece 74, when slide bar 80 slides to the pipe wall of interior body 21, wedge post 73 promotes reset piece 74 and moves down for sliding spring 72 drives the blood clot removal of push rod 71 in to the interior body 21, thereby extrudees the blood clot, makes the blood clot dispersion, receives the blood clot to receive the suction to remove in to interior body 21 simultaneously.
In this embodiment, the reset member 74 includes a reset spring 741 and a limit column 742, the limit column 742 is slidably mounted in the reset slot, one end of the top of the limit column 742, which faces the wedge-shaped column 73, is wedge-shaped, and two ends of the reset spring 741 are respectively fixedly connected to the bottom of the reset slot and the bottom of the limit column 742. Through the setting of reset spring 741 and spacing post 742, when wedge post 73 promoted spacing post 742, wedge post 73 extrudees spacing post 742 for reset spring 741 is compressed, and spacing post 742 moves down, thereby makes sliding spring 72 drive push rod 71 and pass the extrusion hole, and the push rod 71 of being convenient for extrudes the blood clot better.
The specific implementation process is as follows: the operation fixing tube 10 guides the suction tube 20 to pass through the established abdominal cavity hole and enter the abdominal cavity of the patient, the negative pressure in the negative pressure tube 40 drives the inside of the inner tube body 21 to generate suction force, and then the liquid in the abdominal cavity of the patient is absorbed, and after the liquid in the abdominal cavity of the patient is completely sucked, the suction tube 30 is communicated with the suction tube 20, and then the abdominal cavity of the patient is washed. When the inner tube body 21 is blocked by the blood clot, the fixing plate 102 moves towards the inside of the inner tube body 21 under the action of suction force, the fixing spring 103 is lengthened, so that the stepped hole is opened, the suction force generated by negative pressure enters the cavity 23 through the stepped hole, the suction force generated by negative pressure is generated in the cavity 23, the blocking rod 52 moves towards the cavity 23 under the action of suction force, the tension spring 51 is stretched, the through hole is opened, and liquid can enter the cavity 23 through the through hole and be absorbed by the negative pressure tube 40.
Meanwhile, when the blocking rod 52 moves upwards, the extrusion rod 61 is pushed to move towards the inside of the inner tube body 21, the compression spring 62 is compressed, the extrusion rod 61 pushes the elastic coating film 90 to expand, and therefore the blood clot blocking the inner tube body 21 is extruded and deformed and moves towards the inside of the inner tube body 21; meanwhile, the sliding rod 80 moves along with the pressing rod 61, and after the pressing rod 61 presses the blood clot to move towards the inside of the inner tube body 21, the sliding rod 80 slides to the outer wall of the inner tube body 21, and the wedge-shaped column 73 presses the limiting column 742, so that the return spring 741 is compressed, and the limiting column 742 moves downwards; and then make sliding spring 72 elastic contraction for push rod 71 removes to the inside of interior body 21, promotes tectorial membrane 90 and extrudes the blood clot once more and warp, from the bottom up, and push rod 71 extrudes the blood clot in proper order in the cavity 23, promotes the inside removal of the inside body 21 of blood clot, and the blood clot receives the effect of suction simultaneously, and then makes the blood clot can pass interior body 21 discharge body better smoothly. Thereby realized the aspirator when carrying out the attraction of liquid to patient's abdominal cavity, can avoid the clot to block up the pipeline, the aspirator need not take out from patient's abdominal cavity repeatedly, and then reduces the time of operation, reduces the risk of patient infection.
Above technical scheme, through interior body 21, outer body 22, extension spring 51, shutoff pole 52, the setting of extrusion stem 61 and pressure spring 62, when the interior body 21 was blocked up to the blood clot, the suction that the negative pressure produced enters into in the cavity 23 through the step hole, extension spring 51 is stretched, shutoff pole 52 removes in the cavity 23, and then make the through-hole opened, liquid can enter into in the cavity 23 through the through-hole and be absorbed by negative pressure tube 40, simultaneously, shutoff pole 52 is when removing, promote extrusion stem 61 and remove in the body of interior body 21, pressure spring 62 is compressed, thereby the blood clot of interior body 21 is blocked up in the extrusion, make the blood clot extruded and reduced, receive the influence of the suction of attracting pipe 20, make the blood clot can be absorbed smoothly.
Through the setting of push rod 71, sliding spring 72, wedge post 73, reset piece 74 and slide bar 80, the setting that extrusion stem 61 drove slide bar 80 and moves together, is extruded by extrusion stem 61 and warp when the blood clot to when the inside of interior body 21 removed, wedge post 73 promotes reset piece 74 and moves down, makes sliding spring 72 drive the blood clot removal of push rod 71 in to the interior body 21, thereby extrudees the blood clot once more, makes the blood clot dispersion, receives the blood clot to receive suction to remove in to interior body 21 simultaneously.
It should be noted that the above preferred embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the essence of the corresponding technical solution to depart from the scope of the technical solution of the embodiments of the present invention, and are intended to be covered by the claims and the specification of the present invention.
Claims (9)
1. A peritoneoscope aspirator comprises a fixed tube, an aspirator tube, a water inlet tube and a negative pressure tube, wherein the aspirator tube is detachably arranged on the fixed tube;
the suction tube comprises an inner tube body and an outer tube body, the water inlet tube and the negative pressure tube are both communicated with one end, close to the fixed tube, of the inner tube body, the inner tube body is fixedly inserted into the outer tube body, a cavity is arranged between the inner tube body and the outer tube body, a through hole communicated with the outside is formed in the bottom of the cavity, the inner tube body is provided with an extrusion hole and a stepped hole, the extrusion hole is located at one end, far away from the fixed tube, of the inner tube body, and the stepped hole is located at one end, close to the fixed tube, of the inner tube body;
the plugging mechanism comprises a tension spring and a plugging rod, the plugging rod is installed in the through hole in a sliding and sealing mode, one end, far away from the outside, of the plugging rod is a wedge-shaped end, the tension spring is sleeved on the outer surface of the plugging rod, and two ends of the tension spring are fixedly connected with the outer tube body and the outer surface of the plugging rod respectively;
the extrusion mechanism comprises an extrusion rod and a pressure spring, the extrusion rod is inserted in the extrusion hole in a sealed sliding mode, the pressure spring is sleeved on the extrusion rod, two ends of the pressure spring are fixedly connected with the inner pipe body and the extrusion rod respectively, and the extrusion rod is abutted to the wedge-shaped end of the plugging rod in a natural state.
2. The laparoscopic aspirator according to claim 1, further comprising a plurality of pushing mechanisms and a sliding rod, wherein the plurality of squeezing holes are uniformly arranged from the bottom to the middle of the inner tube body, the plurality of pushing mechanisms are slidably mounted in the corresponding squeezing holes, the bottom of each pushing mechanism is provided with a sliding groove, a notch of the sliding groove extends from one end to the other end of each pushing mechanism, the top of the sliding rod is slidably mounted in the sliding groove, the bottom of the sliding rod is fixedly mounted at the top of the blocking rod or the top of the pushing mechanism, and the pushing mechanism extends into the inner tube body when the sliding rod is attached to the inner tube body.
3. The laparoscopic aspirator according to claim 2, wherein said pushing mechanism comprises a push rod, a sliding spring, a wedge post and a reset piece;
the push rod is slidably mounted in the extrusion hole, the sliding groove is formed in the bottom of the push rod, a notch of the sliding groove extends from one end of the push rod to the other end of the push rod, a blind hole is formed in the bottom of the sliding groove, the sliding spring is located at the top of the push rod, two ends of the sliding spring are fixedly connected with the inner tube body and the push rod respectively, a reset groove with a notch facing the sliding rod is formed in the bottom of the extrusion hole, which is located at the push rod, and the groove top of the reset groove is opposite to the blind hole;
the wedge-shaped column is fixedly arranged on the push rod and is positioned in the sliding groove,
reset a slidable mounting in reset the inslot, reset the piece can with wedge post butt, under the natural state, reset the piece butt and go into in the blind hole.
4. The laparoscopic aspirator according to claim 3, wherein the reset piece comprises a reset spring and a limit post, the limit post is slidably mounted in the reset groove, one end of the limit post facing the wedge-shaped post is wedge-shaped, and two ends of the reset spring are respectively fixedly connected with the groove bottom of the reset groove and the bottom of the limit post.
5. The laparoscopic aspirator according to claim 1 or 4, wherein an elastic covering membrane is arranged on one side of the extrusion hole away from the cavity, and the covering membrane is attached to the orifice of the extrusion hole in a natural state.
6. The laparoscopic aspirator according to claim 5, further comprising a venting mechanism sealingly inserted into said stepped bore, said venting mechanism being capable of opening or closing said stepped bore.
7. The laparoscopic aspirator according to claim 6, wherein the venting mechanism comprises a fixing plate and a fixing spring, the flaring of the stepped hole faces the tubular shaft of the inner tube body, the fixing plate is slidably inserted into the stepped hole, and two ends of the fixing spring are fixedly connected with the fixing plate and the inner tube body respectively.
8. The laparoscopic aspirator according to claim 1 or 7, wherein an operating forceps is fixedly installed at the top of said fixing tube.
9. The laparoscopic aspirator according to claim 8, wherein a three-way pipe is fixedly installed at the bottom of the fixed pipe, and three ports of the three-way pipe are respectively communicated with the water inlet pipe, the negative pressure pipe and the suction pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010591521.4A CN111658836B (en) | 2020-06-24 | 2020-06-24 | Peritoneoscope aspirator |
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| CN202010591521.4A CN111658836B (en) | 2020-06-24 | 2020-06-24 | Peritoneoscope aspirator |
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| CN111658836B CN111658836B (en) | 2022-04-26 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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