CN112754551B - Constant pressure pneumoperitoneum device - Google Patents
Constant pressure pneumoperitoneum device Download PDFInfo
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- CN112754551B CN112754551B CN202011601344.XA CN202011601344A CN112754551B CN 112754551 B CN112754551 B CN 112754551B CN 202011601344 A CN202011601344 A CN 202011601344A CN 112754551 B CN112754551 B CN 112754551B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0281—Abdominal wall lifters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3474—Insufflating needles, e.g. Veress needles
Abstract
The invention discloses a constant-pressure pneumoperitoneum device, which comprises a pneumoperitoneum machine, a suction device, a constant-pressure container and an air inlet and exhaust constant-volume device, wherein two ends of a first air inlet pipe are respectively connected with an air outlet of the pneumoperitoneum machine and an air inlet of the constant-pressure container; one end of the exhaust tube is communicated with an air inlet of the suction device, a suction valve is connected between the suction device and the air inlet and exhaust same-volume device, the air inlet and exhaust same-volume device can simultaneously prevent air inlet of the third air inlet tube and exhaust of the exhaust tube, and the device is stable in gas image when the suction device timely sucks a bleeding point to an abdominal cavity.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a constant-pressure pneumoperitoneum device.
Background
The common pneumoperitoneum machine is intermittently inflated, the pneumoperitoneum inflation and exhaust time is about (inflation time is 3s, and stop time is 1s for measuring the pneumoperitoneum pressure), the intermittent inflation is used for maintaining the pneumoperitoneum pressure, the intra-abdominal pressure of the laparoscope pneumoperitoneum is unstable, so that space instability is caused, operation fields flutter, observation is influenced, particularly when hemorrhage or exudation in an operation causes hematocele and hydrops in the abdominal cavity to be sucked, air pressure suddenly drops, intra-abdominal support cannot be maintained, the visual field of an operator changes, the operator needs to be recognized and distinguished again, the judgment difficulty of the operator is increased, visual fatigue is increased, operation difficulty is increased, even lens pollution is caused, operation fields collapse is caused, observation is influenced, the operator needs to be sucked and wiped again, operation process is interrupted seriously, operation time is prolonged, operation efficiency is influenced, operations such as hemostasis point capture are influenced, operation safety is influenced, and life is seriously threatened, the pressure fluctuation in the operation is obvious, the pressure of the circulatory system fluctuation in the operation is increased, and the operation risk is increased.
When the volume in the abdominal cavity is relatively stable, the gas quantity in the abdominal cavity needs to be relatively constant to maintain constant pressure in the abdominal cavity. The gas quantity can not be followed easily during the intermittent inflation period, and a large amount of gas is easily pumped out and the space is easily collapsed particularly during the suction of the aspirator, so that the pressure in the abdominal cavity is unstable.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a constant-pressure pneumoperitoneum device, which maintains the relatively constant air pressure of an abdominal cavity when a suction device sucks the abdominal cavity, ensures the stable visual field of an operation, has a continuous operation thought, and a smooth operation process.
A constant-pressure pneumoperitoneum device comprises a pneumoperitoneum machine, a suction device, a constant-pressure container and an air inlet and exhaust constant-volume device, wherein two ends of a first air inlet pipe are respectively connected with an air outlet hole of the pneumoperitoneum machine and an air inlet hole of the constant-pressure container;
one end of the exhaust pipe is communicated with an air inlet of the suction device, a suction valve is connected between the suction device and the air intake and exhaust same-quantity device, the air intake and exhaust same-quantity device can simultaneously prevent air intake of the third air intake pipe and exhaust of the exhaust pipe, the air intake and exhaust same-quantity device can enable air intake of the third air intake pipe and exhaust quantity of the exhaust pipe to be consistent in the same time period, the air intake and exhaust same-quantity device can form air intake positive pressure on the third air intake pipe, and the air intake and exhaust same-quantity device can form exhaust negative pressure on the exhaust pipe.
In order to solve the above problems, the inventor designs the present technical solution, which includes a pneumoperitoneum machine, a suction device, a constant pressure container and a gas intake and exhaust constant volume device, wherein the pneumoperitoneum machine is connected to the constant pressure container through a first gas intake pipe, a certain amount of gas can be contained in the constant pressure container, the constant pressure container can set a constant pressure value, the constant pressure value of the constant pressure container is adjusted according to the pressure required in the abdominal cavity, a second gas intake pipe is connected to a gas inlet of the constant pressure container, two ends of a third gas intake pipe are both connected to a second connecting pipe, a one-way valve is arranged on the second gas intake pipe and located between the two ends of the third gas intake pipe, one end of the gas exhaust pipe is connected to the suction device, a suction valve is connected between the suction device and the gas intake and exhaust constant volume device, the gas intake and exhaust constant volume device can simultaneously prevent the gas intake of the third gas intake pipe and the gas exhaust pipe from exhausting, the gas intake and exhaust constant volume device can keep the gas intake of the third gas intake pipe and the exhaust pipe consistent in the same time period, the air inlet and exhaust metering device can form positive pressure for air inlet to the abdominal cavity on the third air inlet pipe, the air inlet and exhaust metering device can form negative pressure for air exhaust to the abdominal cavity on the exhaust pipe, when in specific use, the other end of the second air inlet pipe is communicated with the abdominal cavity of a patient, the other end of the exhaust pipe is also communicated with the abdominal cavity of the patient, the suction valve is closed at the moment, the air flow of the third air inlet pipe and the exhaust pipe is prevented by the air inlet and exhaust metering device, at the moment, the pneumoperitoneum machine works to inject air into the abdominal cavity through the second air inlet pipe until the requirement of operation work is met, at the moment, the constant value of the pressure of the constant pressure container is adjusted to be the same as the pressure in the abdominal cavity and have certain air, then the pneumoperitoneum machine is closed, when the air needs to be pumped out from the abdominal cavity and replaced, the traditional pneumoperitoneum machine has certain clearance for supplementing air, the air quantity can not keep up with the air pumped out by the suction device, and the abdominal cavity space can not be timely supplemented, meanwhile, the situation that the suction speed of the suction device is too high, the supplement speed of the pneumoperitoneum machine is slow, and the abdominal cavity space collapses due to untimely supplement is also existed, the constant pressure container is arranged in the technical scheme, certain gas is kept in the constant pressure container, when the suction device pumps out the abdominal cavity gas outwards, the gas in the constant pressure container is timely supplemented into the abdominal cavity, the situation that the abdominal cavity space collapses due to gaps in the supplement of the pneumoperitoneum machine is solved, meanwhile, the gas intake and exhaust same quantity device is arranged, when the gas in the abdominal cavity needs to be replaced, the suction valve is opened, the gas intake and exhaust same quantity device is started, the exhaust pipe can exhaust gas, the third gas intake pipe can intake gas, the gas intake and exhaust same quantity device is used to keep the same gas intake and exhaust gas quantity, the situation that the abdominal cavity collapses when the suction speed of the suction device is higher than the gas intake speed of the pneumoperitoneum machine is solved, the one-way valve is arranged on the second gas intake pipe, because the same amount of device during operation of admitting air and exhausting, the pressure of third intake pipe is less than the pressure of second intake pipe, the gas of constant voltage container combustion gas gets into the third intake pipe, the third intake pipe is given vent to anger the end and also is communicate with the second intake pipe, set up check valve and prevent that gas from the backward flow of second intake pipe, avoid forming the ineffective circulation, can't produce the inflated malleation of abdominal cavity, so realize that the same amount of device during operation of admitting air and exhausting, guarantee that the gas of constant voltage container combustion gas all passes through the third intake pipe, realize that the abdominal cavity admits air and carminative volume is invariable. This device can keep the intra-abdominal cavity constant voltage when the abdominal cavity needs to be changed gas, the stable field of vision of guarantee operation, and smooth and easy operation process absorbs gas image and does not change when meetting smog, and when the multiple hemorrhage in the abdominal cavity, in time the gas image of suction does not change, increases the smoothness degree of operation.
Preferably, the air intake and exhaust metering device comprises a sealed box body and a rotating shaft, a cylindrical cavity is arranged in the sealed box body, the cavity is internally provided with a clapboard which divides the cavity into a front cavity and a rear cavity which are both cylindrical, the rotating shaft penetrates through the partition board in a rotating manner, two ends of the rotating shaft are respectively contacted with the front wall of the front cavity and the rear wall of the rear cavity, a plurality of first blades are arranged on the rotating shaft, the first blades are positioned in the rear cavity, the plurality of first blades are distributed along the circumferential direction of the rotating shaft, the rear ends of the first blades are contacted with the rear wall of the rear cavity, the front ends of the first blades are contacted with the partition plate, the outer ends of the first blades are contacted with the circumferential wall of the rear cavity, the plurality of first blades are matched with the rotating shaft to divide the rear cavity into a plurality of first rear cavities, the exhaust pipe comprises a left exhaust pipe and a right exhaust pipe, one end of the left exhaust pipe is communicated with one first rear cavity, and one end of the right exhaust pipe is communicated with the other first rear cavity;
be equipped with a plurality of second blades in the pivot, the second blade is located the front chamber, and a plurality of second blades distribute along the circumference of pivot, the antetheca contact in front end and the antetheca of second blade and antetheca, the rear end and the baffle contact of second blade, the outer end of second blade and the circumference wall contact in antetheca, a plurality of second blades and pivot cooperation are separated the antetheca for a plurality of first antetheca, the third intake pipe includes third left intake pipe and third right intake pipe, the one end and the first antetheca intercommunication of third left intake pipe, another first antetheca intercommunication of one end of third right intake pipe.
The intake and exhaust air quantity device in the technical scheme comprises a sealing box body and a rotating shaft, wherein a cylindrical cavity is arranged in the sealing box body, a partition plate is arranged in the cavity and divides the cavity into two cylindrical front cavities and a rear cavity, a plurality of first blades and a plurality of second blades are arranged on the rotating shaft, the rear cavity is divided into a plurality of independent first rear cavities by the cooperation of the plurality of first blades and the rotating shaft, the front cavity is divided into a plurality of independent first front cavities by the cooperation of the plurality of second blades and the rotating shaft, an exhaust pipe is divided into a left exhaust pipe and a right exhaust pipe, the left exhaust pipe and the right exhaust pipe are always communicated with two different first rear cavities respectively, a third intake pipe comprises a third left intake pipe and a third right intake pipe, the third left intake pipe and the third right intake pipe are always communicated with two different first front cavities respectively, when the air is not exhausted (when the air is admitted into the abdominal cavity or is kept constant), an exhaust valve is closed, and no air flows in the intake pipes, no gas enters the rear cavity, the rotating shaft and the first blade are kept in a static state by the external pressure difference of the abdominal cavity and the suction valve, the second blade in the front cavity is kept still by the rotation of the rotating shaft, the gas enters the abdominal cavity through the second air inlet pipe, when the air needs to be pumped and the abdominal cavity pressure is kept constant, the suction device (such as an exhaust fan and the like) is started, the suction valve is opened, the gas in the air pumping pipe circulates to drive the rotating shaft to rotate and exhaust to form exhaust negative pressure, the gas in the abdominal cavity is exhausted after entering the rear cavity, the rotating shaft rotates to drive the second blade to rotate, the gas in the third air inlet pipe is exhausted into the abdominal cavity, so that the gas in the third air inlet pipe forms abdominal cavity intake positive pressure, the gas in the constant-pressure container enters the abdominal cavity through the third air inlet pipe, and the first blade and the second blade are driven by the rotating shaft to rotate simultaneously, therefore, the amount of the gas entering the front cavity is the same as the amount of the gas exhausted from the rear cavity, and air intake and exhaust are carried out simultaneously, so that the constant air intake and exhaust of the abdominal cavity is realized, and the constant pressure in the abdominal cavity is ensured.
Preferably, the number of the first blades is the same as that of the second blades, the first blades are uniformly distributed, and the second blades are uniformly distributed.
Preferably, the same amount of exhaust that admits air includes the fixed plate, install drive arrangement on the fixed plate, be connected with two cams on drive arrangement's the output shaft, third intake pipe and exhaust tube are placed on the fixed plate, and the bulge of two cams can extrude third intake pipe and exhaust tube respectively and make it seal completely, and when a cam extruded third intake pipe, another cam extruded the exhaust tube, and a cam can form the outside carminative negative pressure in abdominal cavity to the exhaust tube, and another cam can form the malleation of admitting air in to the abdominal cavity to third intake pipe.
The air inlet and exhaust same-quantity device in the technical scheme comprises a fixed plate, a driving device is installed on the fixed plate, two cams are connected on an output shaft of the driving device, a third air inlet pipe and an exhaust pipe are fixed on the fixed plate, the convex parts of the two cams can respectively extrude the third air inlet pipe and the exhaust pipe and enable the third air inlet pipe and the exhaust pipe to be completely closed, when the air is not exhausted (when the abdominal cavity is air-in or keeps constant), the convex parts of the two cams respectively extrude the third air inlet pipe and the exhaust pipe and enable the third air inlet pipe to be completely closed, at the moment, gas exhausted from the constant-pressure device enters the abdominal cavity through a second air inlet pipe, when the air needs to be exhausted and the pressure of the abdominal cavity is kept constant, a suction valve is opened, the driving device is started, the driving device rotates to drive the cams to rotate, the cams are in clearance contact with the exhaust pipe and the third air inlet pipe to generate exhaust negative pressure for the exhaust pipe and generate positive air inlet pressure for the third air inlet pipe, because the two cams extrude the third air inlet pipe and the exhaust pipe simultaneously, therefore, the amount of gas discharged from the exhaust tube and the amount of gas entering the third gas inlet tube are kept constant, and gas inlet and gas exhaust are carried out simultaneously, so that the pressure in the abdominal cavity is kept constant.
Preferably, the same amount of exhaust that admits air device includes the fixed plate, install drive arrangement on the fixed plate, be connected with first cam on drive arrangement's the output shaft, third intake pipe and exhaust tube are placed on the fixed plate, and the bulge of first cam can extrude third intake pipe and exhaust tube simultaneously and make it seal completely, and first cam can form the outside carminative negative pressure in abdominal cavity to the exhaust tube, and first cam can form the malleation of admitting air in to the abdominal cavity to third intake pipe.
Preferably, the driving device is a reduction motor.
Preferably, still include two puncture wares, two puncture wares can dismantle with second intake pipe and exhaust tube respectively and be connected, and the second intake pipe can be through puncture ware to the abdominal cavity input gas, and the exhaust tube can be through the puncture ware with the gaseous emission in the abdominal cavity, and open the bottom of the needle tubing lateral wall of puncture ware has a plurality of first blind holes, and a plurality of first blind holes distribute around the circumference of needle tubing, and first blind hole adopts the elastic membrane to seal, and the elastic membrane is located first blind hole, and open at the top of needle tubing lateral wall has the second blind hole, second blind hole and a plurality of first blind holes all communicate, and it has first exhaust hole to open on the constant voltage container, and two second blind holes all communicate with first exhaust hole through fourth intake pipe, and the slip is provided with the sucking disc on the needle tubing.
Preferably, a plurality of the first blind holes are uniformly distributed around the circumference of the needle tube.
Adopt the puncture ware to pass human belly and get into the abdominal cavity among the laparoscopic surgery, realize the gas injection and the gas discharge of abdominal cavity with the mode that second intake pipe and exhaust tube are connected with two puncture wares respectively, the bottom of puncture ware is sharp-pointed, do not have at present to fix firm way to the puncture ware, in operation process, the mistake touches and touches the puncture ware and makes the puncture ware press down the back probably to damage the organ in the abdominal cavity and lead to the intra-abdominal hemorrhage, influence the operation process, the mistake touches and touches the puncture ware and leads to lifting the puncture ware probably to appear the puncture ware and break away from, the operation process is influenced in the disappointing of abdominal cavity, and the puncture ware inserts deeply, cause the block to the visual field, influence the position of operation utensil and remove, cause the inconvenience of operation process. In the technical scheme, a plurality of first blind holes are formed in the bottom of the side wall of a needle tube of the puncture outfit, a second blind hole is formed in the top of the side wall of the needle tube, the first blind holes are communicated with the second blind holes, the first blind holes are sealed by elastic membranes, the elastic membranes contract under the normal pressure state, the second blind holes of two needle tubes are communicated with a first exhaust hole of a constant pressure container, after the bottom ends of the needle tubes are inserted into an abdominal cavity, gas is injected into the first blind holes through the constant pressure container, the elastic membranes bulge out of the side wall of the needle tubes, the needle tubes are lifted upwards at the moment to be contacted with the inner wall of the abdominal cavity, then a sucking disc is slid to be adsorbed on the outer wall of the abdominal cavity, so that the puncture outfit is fixed, the puncture outfit is prevented from moving due to mistaken touch, meanwhile, the space occupied by the puncture outfit entering the abdominal cavity is reduced, the abdominal cavity operation is smoother, the operation is finished, a fourth air inlet pipe is taken down, and the gas in the first blind holes is released, then the second blind hole is blocked until the exhaust outer wall in the abdominal cavity, and the puncture outfit is taken down.
Preferably, the side wall of the chuck body of the sucker is provided with a threaded hole, and the bolt is in threaded connection with the threaded hole.
According to the technical scheme, the threaded hole is formed in the side wall of the sucker body, the bolt is in threaded connection with the threaded hole, when the sucker adsorbs, the bolt blocks the threaded hole, the sucker can be stably attached to the outer wall of an abdominal cavity, an operation is finished, and when the sucker needs to be taken down, the bolt is screwed out, so that air enters the sucker, and the sucker can be taken down conveniently.
Preferably, a first valve is installed at the first exhaust hole. In this technical scheme at first exhaust hole department installation first valve, when first blind hole need admit air, open first valve, close first valve after aerifing, make the elastic membrane keep the uplift, carry out the restriction of position to the puncture ware all the time, until the operation is ended, take off the fourth intake pipe, release the gas in the first blind hole, then plug up the second blind hole, until the abdominal cavity inner exhaust outer wall, take off the puncture ware.
The invention has the beneficial effects that: the technical scheme includes that the device comprises a pneumoperitoneum machine, a suction device, a constant pressure container and an air inlet and exhaust same-quantity device, the pneumoperitoneum machine is connected with the constant pressure container through a first air inlet pipe, a second air inlet pipe is connected with an air inlet of the constant pressure container, two ends of a third air inlet pipe are both connected with a second connecting pipe, a one-way valve is arranged on the second air inlet pipe and positioned between two ends of the third air inlet pipe, one end of an exhaust pipe is connected with the suction device, and a suction valve is connected between the suction device and the air inlet and exhaust same-quantity device. Start the same volume device of admitting air and exhausting, make the exhaust tube can exhaust, the third admission pipe can admit air, use the same volume device of admitting air and exhausting like this and make and admit air and exhaust volume keep the same, the condition that the abdominal cavity that appears when so solving the suction device pumping speed and being greater than the admission speed of pneumoperitoneum machine collapses, this device can be when the abdominal cavity needs to be changed gas, keep the intra-abdominal cavity constant voltage, the stable field of vision of guarantee operation, the operation thinking that lasts, smooth and easy operation process, it does not change to draw gaseous image when smog, when the multiple hemorrhage in the abdominal cavity, in time, it does not change to draw gaseous image, increase the smoothness degree of operation.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of the overall structure of embodiment 2 of the present invention;
FIG. 2 is a schematic view of the overall structure of embodiment 3 of the present invention;
FIG. 3 is a schematic diagram of the overall structure of embodiment 5 of the present invention.
In the figure, 1-pneumoperitoneum machine, 2-suction device, 3-constant pressure container, 4-one-way valve, 5-suction valve, 6-first air inlet pipe, 7-second air inlet pipe, 8-third air inlet pipe, 9-air exhaust pipe, 10-air inlet and exhaust equivalent device, 11-puncture outfit, 12-first blind hole, 13-fourth air inlet pipe, 14-suction cup, 81-third left air inlet pipe, 82-third right air inlet pipe, 91-left air exhaust pipe, 92-right air exhaust pipe, 101-sealed box body, 102-rear cavity, 103-rotating shaft, 104-first blade, 105-fixed plate, 106-driving device and 107-cam.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Example 1
As shown in fig. 1, the present embodiment provides a constant pressure pneumoperitoneum device, which includes a pneumoperitoneum machine 1, a suction device 2, a constant pressure container 3 and an air intake and exhaust equivalent device 10, wherein two ends of a first air intake pipe 6 are respectively connected to an air exhaust hole of the pneumoperitoneum machine 1 and an air intake hole of the constant pressure container 3, one end of a second air intake pipe 7 is connected to an air exhaust hole of the constant pressure container 3, two ends of a third air intake pipe 8 are both connected to the second air intake pipe 7, a one-way valve 4 is disposed on the second air intake pipe 7, the one-way valve 4 can allow air to move from one end of the second air intake pipe 7 connected to the constant pressure container 3 to the other end, and the one-way valve 4 is disposed between two ends of the third air intake pipe 8;
one end of the exhaust pipe 9 is communicated with an air inlet of the suction device 2, a suction valve 5 is connected between the suction device 2 and the air intake and exhaust same-quantity device 10, the air intake and exhaust same-quantity device 10 can simultaneously prevent air intake of the third air intake pipe 8 and air exhaust of the exhaust pipe 9, the air intake and exhaust same-quantity device 10 can enable air intake of the third air intake pipe 8 and air exhaust quantity of the exhaust pipe 9 to be kept consistent in the same time period, the air intake and exhaust same-quantity device 10 can form air intake positive pressure on the third air intake pipe 8, and the air intake and exhaust same-quantity device 10 can form air exhaust negative pressure on the exhaust pipe 9.
The diameters of the first air inlet pipe 6, the second air inlet pipe 7, the third air inlet pipe 8 and the exhaust pipe 9 are the same, and the air inlet pipes are hoses.
Example 2
The embodiment is further described on the basis of embodiment 1, in this embodiment, the intake and exhaust air volume balancing device 10 includes a sealed box 101 and a rotating shaft 103, the sealed box 101 has a cylindrical cavity therein, the cavity has a partition plate, the partition plate divides the cavity into a front cavity and a rear cavity 102, the front cavity and the rear cavity 102 are both cylindrical, the rotating shaft 103 rotates to penetrate through the partition plate, two ends of the rotating shaft 103 are respectively contacted with a front wall of the front cavity and a rear wall of the rear cavity 102, the rotating shaft 103 is provided with a plurality of first blades 104, the first blades 104 are located in the rear cavity 102, the plurality of first blades 104 are distributed along the circumferential direction of the rotating shaft 103, the rear end of the first blade 104 is contacted with the rear wall of the rear cavity 102, the front end of the first blade 104 is contacted with the partition plate, the outer end of the first blade 104 is contacted with the circumferential wall of the rear cavity 102, the plurality of first blades 104 are matched with the rotating shaft 103 to divide the rear cavity 102 into a plurality of first rear cavities, the air exhaust pipe 9 comprises a left air exhaust pipe 91 and a right air exhaust pipe 92, one end of the left air exhaust pipe 91 is communicated with one first rear cavity, and one end of the right air exhaust pipe 92 is communicated with the other first rear cavity;
be equipped with a plurality of second blades on pivot 103, the second blade is located the front chamber, and a plurality of second blades distribute along pivot 103's circumference, and the front end of second blade contacts with the antetheca in antetheca, and the rear end and the baffle contact of second blade, the outer end of second blade and the circumference wall contact in antetheca, and a plurality of second blades and pivot 103 cooperation are separated the antetheca for a plurality of first antetheca, third intake pipe 8 includes third left intake pipe 81 and third right intake pipe 82, the one end and the first antetheca intercommunication of third left intake pipe 81, another first antetheca intercommunication of one end of third right intake pipe 82.
In this embodiment, the first blades 104 and the second blades have the same shape and size, one first blade 104 and one second blade form a group, and the top walls of the first blades 104 and the top walls of the second blades in the same group are in the same plane.
In this embodiment, the number of the first blades 104 is the same as that of the second blades, a plurality of the first blades 104 are uniformly distributed, and a plurality of the second blades are uniformly distributed.
In this embodiment, the right end of the right suction pipe 92 is connected with the suction device 2, the left end of the right suction pipe 92 is connected with the sealed box 101, the right end of the left suction pipe 91 is connected with the sealed box 101, the right end of the third left air inlet pipe 81 is connected with the sealed box 101, the left end of the third right air inlet pipe 82 is connected with the sealed box 101, in the sealed box 101, the flow directions of air intake and air exhaust are from left to right, so that an abdominal cavity air intake positive pressure and an abdominal cavity air exhaust negative pressure are formed in the sealed box 101, in the actual application process, the other end of the left suction pipe 91 can be bent to be communicated with an abdominal cavity according to the actual position of the abdominal cavity, and the flow direction of the abdominal cavity exhaust gas is the left suction pipe 91, the air intake and exhaust equivalent device 10, the right suction pipe 91 and the suction device 2; the flow direction of the gas entering the abdominal cavity is the third left gas inlet pipe 81, the gas inlet and exhaust same quantity device 10, the third left gas inlet pipe 82 and the abdominal cavity.
Example 3
As shown in fig. 2, in this embodiment, the intake and exhaust air quantity sharing device 10 further includes a fixing plate 105, a driving device 106 is mounted on the fixing plate 105, two cams 107 are connected to an output shaft of the driving device 106, the third intake pipe 8 and the exhaust pipe 9 are placed on the fixing plate 105, the protruding portions of the two cams 107 can respectively press and completely close the third intake pipe 8 and the exhaust pipe 9, when one cam 107 presses the third intake pipe 8, the other cam 107 presses the exhaust pipe 9, one cam 107 can form a negative pressure for exhausting air out of the abdominal cavity to the exhaust pipe 9, and the other cam 107 can form a positive pressure for exhausting air into the abdominal cavity to the third intake pipe 8. In this embodiment, the right end of the exhaust tube 9 is connected to the suction device 2, the other end of the exhaust tube 9 can be bent to be communicated with the abdominal cavity according to the actual position of the abdominal cavity, and the air intake and exhaust flow directions are all from left to right at the air intake and exhaust equivalent device 10.
The driving device 106 is a speed reducing motor in this embodiment.
Example 4
The embodiment is further described on the basis of embodiment 1, in this embodiment, the intake and exhaust air volume equalizing device 10 includes a fixing plate 105, a driving device 106 is installed on the fixing plate 105, an output shaft of the driving device 106 is connected with a first cam, the third intake pipe 8 and the exhaust pipe 9 are placed on the fixing plate 105, a protruding portion of the first cam can simultaneously extrude and completely seal the third intake pipe 8 and the exhaust pipe 9, the first cam can form a negative pressure for exhausting air from the abdominal cavity to the outside to the exhaust pipe 9, and the first cam can form a positive pressure for allowing air to enter the abdominal cavity to the third intake pipe 8.
In this embodiment, the right end of the exhaust tube 9 is connected to the suction device 2, the other end of the exhaust tube 9 can be bent to be communicated with the abdominal cavity according to the actual position of the abdominal cavity, and the air intake and exhaust flow directions are all from left to right at the air intake and exhaust equivalent device 10.
The driving device 106 is a speed reducing motor in this embodiment.
Example 5
The embodiment further describes on the basis of embodiment 1, further including two puncture outfits 11, two puncture outfits 11 are detachably connected with second intake pipe 7 and exhaust tube 9 respectively, second intake pipe 7 can be through puncture outfit 11 to the abdominal cavity input gas, exhaust tube 9 can be through puncture outfit 11 with the gas escape in the abdominal cavity, the bottom of the needle tubing lateral wall of puncture outfit 11 is opened has a plurality of first blind holes 12, a plurality of first blind holes 12 distribute around the circumference of needle tubing, first blind hole adopts the elastic membrane to seal, the elastic membrane is located first blind hole, the top of needle tubing lateral wall is opened has the second blind hole, the second blind hole all communicates with a plurality of first blind holes 12, constant pressure container 3 is last to be opened first exhaust hole, two second blind holes all communicate with first exhaust hole through fourth intake pipe 13, the last slip of needle tubing is provided with sucking disc 14.
In this embodiment, a plurality of the first blind holes 12 are uniformly distributed around the circumference of the syringe.
In this embodiment, the side wall of the suction cup 14 is provided with a threaded hole, and the bolt is in threaded connection with the threaded hole.
In this embodiment, the first valve is installed at the first exhaust hole.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled 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; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (6)
1. The constant-pressure pneumoperitoneum device is characterized by comprising a pneumoperitoneum machine (1), a suction device (2), a constant-pressure container (3) and an air inlet and exhaust same-quantity device (10), wherein two ends of a first air inlet pipe (6) are respectively connected with an exhaust hole of the pneumoperitoneum machine (1) and an air inlet hole of the constant-pressure container (3), one end of a second air inlet pipe (7) is connected with the exhaust hole of the constant-pressure container (3), two ends of a third air inlet pipe (8) are both connected with the second air inlet pipe (7), a one-way valve (4) is arranged on the second air inlet pipe (7), the one-way valve (4) can allow air to move from one end, connected with the constant-pressure container (3), of the second air inlet pipe (7) to the other end, and the one-way valve (4) is arranged between two ends of the third air inlet pipe (8);
one end of the air exhaust pipe (9) is communicated with an air inlet of the suction device (2), a suction valve (5) is connected between the suction device (2) and the air intake and exhaust same-quantity device (10), the air intake and exhaust same-quantity device (10) can simultaneously prevent air intake of the third air intake pipe (8) and air exhaust of the air exhaust pipe (9), the air intake and exhaust same-quantity device (10) can enable air intake quantity of the third air intake pipe (8) and air exhaust quantity of the air exhaust pipe (9) to be consistent in the same time period, the air intake and exhaust same-quantity device (10) can form air intake positive pressure on the third air intake pipe (8), and the air intake and exhaust same-quantity device (10) can form exhaust negative pressure on the air exhaust pipe (9);
the air inlet and exhaust gas same-amount device (10) comprises a sealing box body (101) and a rotating shaft (103), wherein a cylindrical cavity is arranged in the sealing box body (101), a partition plate is arranged in the cavity and divides the cavity into a front cavity and a rear cavity (102), the front cavity and the rear cavity (102) are cylindrical, the rotating shaft (103) rotates to penetrate through the partition plate, two ends of the rotating shaft (103) are respectively in contact with the front wall of the front cavity and the rear wall of the rear cavity (102), a plurality of first blades (104) are arranged on the rotating shaft (103), the first blades (104) are positioned in the rear cavity (102), the plurality of first blades (104) are distributed along the circumferential direction of the rotating shaft (103), the rear ends of the first blades (104) are in contact with the rear wall of the rear cavity (102), the front ends of the first blades (104) are in contact with the partition plate, the outer ends of the first blades (104) are in contact with the circumferential wall of the rear cavity (102), and the first blades (104) and the rotating shaft (103) are matched to separate the rear cavity (102) into a plurality of first cavities, the air exhaust pipe (9) comprises a left air exhaust pipe (91) and a right air exhaust pipe (92), one end of the left air exhaust pipe (91) is communicated with one first rear cavity, and one end of the right air exhaust pipe (92) is communicated with the other first rear cavity;
be equipped with a plurality of second blades on pivot (103), the second blade is located the front chamber, and a plurality of second blades distribute along the circumference of pivot (103), and the front end of second blade contacts with the antetheca in antetheca, and the rear end and the baffle contact of second blade, the outer end of second blade and the circumference wall contact in antetheca, and a plurality of second blades and pivot (103) cooperation are separated the front chamber for a plurality of first antetheca, third intake pipe (8) include third left intake pipe (81) and third right intake pipe (82), the one end and the first antetheca intercommunication of third left intake pipe (81), another first antetheca intercommunication of one end of third right intake pipe (82).
2. The constant pressure pneumoperitoneum device according to claim 1, wherein the number of said first blades (104) and said second blades is the same, a plurality of said first blades (104) are uniformly distributed, and a plurality of said second blades are uniformly distributed.
3. The constant-pressure pneumoperitoneum device according to claim 1, further comprising two puncture outfits (11), wherein the two puncture outfits (11) are detachably connected with a second air inlet pipe (7) and an air exhaust pipe (9) respectively, the second air inlet pipe (7) can input air into the abdominal cavity through the puncture outfits (11), the air exhaust pipe (9) can exhaust air in the abdominal cavity through the puncture outfits (11), the bottom of the side wall of the needle tube of the puncture outfits (11) is provided with a plurality of first blind holes (12), the plurality of first blind holes (12) are distributed around the circumferential direction of the needle tube, the first blind holes are sealed by elastic membranes, the elastic membranes are located in the first blind holes, the top of the side wall of the needle tube is provided with second blind holes, the second blind holes are all communicated with the plurality of first blind holes (12), the constant-pressure container (3) is provided with first air exhaust holes, and the two second blind holes are all communicated with the first air exhaust holes through a fourth air inlet pipe (13), the needle tube is provided with a sucker (14) in a sliding way.
4. A constant pressure pneumoperitoneum device according to claim 3, wherein a plurality of said first blind holes (12) are evenly distributed around the circumference of the syringe.
5. The constant pressure pneumoperitoneum device according to claim 3, wherein the suction cup (14) has a threaded hole formed in a side wall of the cup body, and the bolt is threadedly engaged with the threaded hole.
6. The constant pressure pneumoperitoneum device according to claim 3, wherein a first valve is installed at the first vent hole.
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| CN107095707B (en) * | 2017-06-03 | 2023-05-26 | 成都五义医疗科技有限公司 | Puncture outfit sleeve assembly with air bag |
| CN108065974B (en) * | 2018-01-25 | 2021-04-30 | 南充市中心医院 | Simple air cavity constant pressure device |
| CN208988979U (en) * | 2018-09-11 | 2019-06-18 | 重庆医科大学附属第一医院 | Per anum operation stable gas pressure mechanism |
| CN110327081A (en) * | 2019-08-05 | 2019-10-15 | 中南大学湘雅医院 | A kind of endoscope-assistant surgery constant pressure and adjustable exhaust system |
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| CN107961021A (en) * | 2017-12-15 | 2018-04-27 | 中南大学湘雅医院 | Full-automatic hemostix and its use provisional negative pressure hemostix that blood was collected |
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