A puncture drainage device with numerical control monitoring function

Abstract

The present invention discloses a puncture drainage device with a numerical control monitoring function, which relates to the technical field of medical devices and includes a puncture drainage module, a support and positioning module, and a driving module: The support and positioning module includes a positioning sleeve, an adsorption assembly, a dressing fixing assembly, and a guiding frame. The positioning sleeve is sleeved on the tube body of the drainage catheter near the puncture catheter and positions itself by adsorbing to the abdomen through the adsorption assembly. The dressing fixing assembly is inserted into the end of the positioning sleeve and abuts against the surface of the dressing, so that the dressing closely adheres to the wound. The drainage catheter passes through the positioning sleeve and is clamped by the guiding frame to bend the drainage catheter. The bent drainage catheter positions the positioning sleeve, adsorbs to the abdomen through the adsorption assembly, and makes the drainage catheter and the puncture catheter stand straight or obliquely on the abdomen, avoiding the puncture catheter from swinging due to the dragging of the drainage catheter when it is in the state of piercing the abdomen, resulting in the enlargement of the wound or the deeper penetration of the puncture catheter, causing further damage to the wound and intraperitoneal tissues.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a puncture drainage device with a numerical control monitoring function. Background Art

[0002] Abdominoparacentesis is a technique of directly puncturing the peritoneal cavity through a puncture needle or catheter from the anterior abdominal wall to extract peritoneal effusion to assist in the diagnosis and treatment of diseases. This technique is a simple method for determining the presence of ascites and differentiating the nature of ascites, and is divided into diagnostic abdominoparacentesis and therapeutic abdominoparacentesis.

[0003] The Chinese patent application with the authorization announcement number CN112472882B discloses a thoracic puncture drainage device, including a puncture catheter, a drainage catheter, and a drainage bag. The tail end of the puncture catheter is connected to the drainage catheter, and the drainage catheter is connected to the drainage bag. The drainage catheter includes a rear catheter section connected to the drainage bag, a front catheter section connected to the puncture catheter, and a connecting device connecting the rear catheter section and the front catheter section. The connecting device includes a three-way connecting pipe, and the three-way connecting pipe includes a first end pipe, a second end pipe, and a third end pipe. When there is a need for fluid aspiration, uncover the sealing cap on the fluid aspiration connecting pipe head, connect a syringe to the fluid aspiration connecting pipe head, push the aspirated fluid into the drainage bag after aspiration, and repeatedly operate the syringe to achieve rapid aspiration of the fluid. After the fluid aspiration is completed, seal the fluid aspiration connecting pipe head with the sealing cap to achieve normal drainage operation; the fluid aspiration operation is convenient, without intermediate assembly operation, facilitating operation and ensuring the overall connection reliability of the drainage tube.

[0004] In the process of retelling the above patent, it has the following several obvious defects:

[0005] The above invention does not mention any function of automation or numerical control monitoring, which is a lack for modern medical devices, because real-time monitoring can help medical staff timely understand the patient's condition and take necessary measures;

[0006] The above invention proposes to use a knob to control the valve core mechanism, and frequent manual operation increases the complexity of the operation and the risk of error, increasing the difficulty of the operation;

[0007] Secondly, adding some components in the drainage tube increases the economic cost for disposable products.

[0008] Therefore, the present invention proposes a puncture drainage device with a numerical control monitoring function to solve the above problems. Summary of the Invention

[0009] In view of the problems existing in the above-mentioned prior art, the present invention is proposed.

[0010] To solve the above technical problems, the present invention provides the following technical solutions: A puncture drainage device with numerical control monitoring function, comprising a puncture drainage module, a support positioning module and a driving module.

[0011] The puncture drainage module is used for abdominal puncture and drainage, and includes a puncture catheter, a drainage catheter and a syringe. The puncture catheter penetrates into the abdominal cavity and introduces abdominal effusion into the syringe through the drainage catheter;

[0012] The support positioning module includes a positioning sleeve, an adsorption assembly, a dressing fixing assembly and a guiding frame. The positioning sleeve is sleeved on the tube body of one end of the drainage catheter close to the puncture catheter, and adsorbs to the abdomen through the adsorption assembly to position itself. The dressing fixing assembly is inserted into the end of the positioning sleeve and abuts against the surface of the dressing, so that the dressing closely adheres to the wound. The drainage catheter passes through the positioning sleeve and is clamped by the guiding frame to bend the drainage catheter, and the bent drainage catheter positions the positioning sleeve;

[0013] The driving module includes a fixed seat and a control component. The fixed seat is arranged at the bottom end of the syringe to form a support and gives support to the control component. The control component adsorbs to the tail end of the syringe and gradually increases the inner cavity of the syringe.

[0014] As a preferred solution of the puncture drainage device with numerical control monitoring function of the present invention, wherein: the positioning sleeve includes a long tube sleeve closely attached to the outer wall of the drainage catheter. Multiple ring plates are evenly distributed on the surface of the long tube sleeve, and ball grooves are opened on the upper and lower end faces of the ring plates. The adsorption assembly is clamped between two adjacent ring plates and rotates around the central line of the long tube sleeve. Multiple straight insertion cylinders extend from the surface of the group of ring plates at the bottom end, and the dressing fixing assembly is inserted into the inner cavity of the straight insertion cylinders.

[0015] As a preferred solution of the puncture drainage device with numerical control monitoring function of the present invention, wherein: the adsorption assembly includes a short sleeve sleeved on the surface of the drainage catheter, a connecting pipe and an adsorption head. The short sleeve is connected to the adsorption head through the connecting pipe. Multiple balls are embedded on the upper and lower end faces of the short sleeve, and the multiple balls roll in the ball grooves and change the adsorption position of the adsorption head through the rotation of the short sleeve.

[0016] As a preferred solution of the puncture drainage device with numerical control monitoring function of the present invention, wherein: the connecting pipe includes a bottom bent rod clamped in the adsorption head and a top bent rod connected to the short sleeve. An insertion cylinder is fixedly connected to the bottom end of the bottom bent rod, and a telescopic member is fixedly connected to the top end of the bottom bent rod. The telescopic member passes through the insertion cylinder and is fixedly connected to the top bent rod;

[0017] The telescopic member includes a spring and a driven rod located at the center of the spring. The spring is stretched to straighten the drainage catheter.

[0018] As a preferred solution of the puncture drainage device with numerical control monitoring function described in the present invention, the guide frame includes a left cartridge, a right cartridge and a connecting block, the left cartridge is fixedly connected to the right cartridge through the connecting block, the connecting block is tightly attached to the outer wall of the drainage catheter, the left cartridge is tightly attached to the outer wall of the long tube sleeve, the drainage catheter passes through the long tube sleeve and is clamped by the right cartridge, and the clamped and bent drainage catheter prevents the long tube sleeve from sliding on the surface of the drainage catheter.

[0019] As a preferred solution of the puncture drainage device with numerical control monitoring function described in the present invention, the dressing fixing assembly includes an elastic telescopic rod and an annular clamp, the elastic telescopic rod is adapted to the straight insert tube and fixed to the end face of the annular clamp, and the annular clamp is pressed on the upper surface of the dressing to cause the elastic telescopic rod to contract.

[0020] As a preferred solution of the puncture drainage device with digital control monitoring function described in the present invention, wherein: the drainage catheter comprises a front catheter section, a burette and a rear catheter section which are arranged in sequence and connected, the front catheter section is connected to the inlet end of the burette and extends inward, and a group of monitoring diaphragms for monitoring and obtaining the dripping speed of the effusion are pasted on the outer wall of the burette at a position directly opposite to the end of the front catheter section, and a group of indicator lights are installed on the outer surface of the monitoring diaphragm for receiving abnormal signals of the monitoring diaphragm and alarming;

[0021] The front catheter section is connected to the puncture catheter, and an integrally connected three-way connecting tube 1 is provided in the middle of the front catheter section. The rear catheter section is connected to the syringe, and an integrally connected three-way connecting tube 2 is provided in the middle of the rear catheter section.

[0022] As a preferred embodiment of the puncture drainage device with digital control monitoring function of the present invention, the syringe comprises a syringe and a piston sliding in the inner cavity of the syringe, a through groove is provided on the surface of the syringe, and a through groove is provided on the surface of the piston;

[0023] The fixing seat comprises a square insert tube inserted into the through groove and a built-in block inserted into the through groove, and an end plate is fixedly connected to one end of the square insert tube away from the built-in block. By pulling the built-in block to press the end plate against the end of the syringe, the built-in block slides and engages in the inner cavity of the square insert tube and is fixedly connected to the piston.

[0024] As a preferred solution of the puncture and drainage device with numerical control monitoring function described in the present invention, the control component includes a negative pressure suction cup adsorbed on the end face of the syringe, a group of transmission rods are rotatably installed at the end of the negative pressure suction cup away from the syringe, and a group of driven gears are fixedly connected to the tail end of the transmission rod.

[0025] As a preferred embodiment of the puncture drainage device with numerical control monitoring function according to the present invention, wherein: a motor and a spiral sleeve seat are mounted on the surface of the built-in block, a set of driving gears are fixedly connected to the output end of the motor, the driving gears are in meshing transmission with the driven gears, and the spiral sleeve seat is connected to the surface of the piston.

[0026] Advantages of the present invention: By sleeving a set of support and positioning modules between the puncture catheter and the drainage catheter, the support and positioning modules include a positioning sleeve, an adsorption component, a dressing fixing component and a guiding frame. The adsorption component adsorbs on the abdomen and makes the drainage catheter and the puncture catheter stand vertically or obliquely on the abdomen, avoiding the puncture catheter from swinging due to the dragging of the drainage catheter when piercing the abdomen, causing the enlargement of the wound or the deeper penetration of the puncture catheter, resulting in further damage to the wound and intra-abdominal tissues. At the same time, the dressing fixing component presses on the dressing to prevent leakage at the connection between the dressing and the skin, causing wound infection. Secondly, the guiding frame bends the drainage catheter and fixes the position of the positioning sleeve on the surface of the drainage catheter. The adsorption component, the dressing fixing component and the guiding frame jointly control to position the drainage catheter, avoiding the position deviation or the change of the penetration depth of the puncture catheter caused by external operations.

[0027] The present invention sets a fixing seat and a control component. The fixing seat positions the syringe, and the control component makes the abdominal effusion enter the inner cavity of the syringe evenly, avoiding the discomfort of the patient caused by the variable-speed extraction of the abdominal effusion due to hand operation, and at the same time reducing the surgical difficulty of the abdominal drainage operation. Secondly, the abdominal effusion moving at a constant speed is easy to be observed when the speed changes, so as to judge whether the puncture drainage module is blocked, avoiding the situation that the puncture drainage module is overly blocked and cannot be dredged, and the need for multiple punctures. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic diagram of the overall structure of the puncture drainage device with numerical control monitoring function in the present invention;

[0030] Figure 2 It is a schematic diagram of a partial structure of the puncture drainage device with numerical control monitoring function in the present invention;

[0031] Figure 3 It is a schematic diagram of the overall structure of the fixing seat in the present invention;

[0032] Figure 4Schematic diagram of the overall structure of the control component in the present invention;

[0033] Figure 5 Schematic diagram of the connection structure between the control component and the fixing base in the present invention;

[0034] Figure 6 Overall structure sectional view of the puncture drainage device with numerical control monitoring function in the present invention;

[0035] Figure 7 Schematic diagram of the overall structure of the support and positioning module in the present invention;

[0036] Figure 8 Schematic diagram of the overall structure of the positioning sleeve in the present invention;

[0037] Figure 9 Schematic diagram of the structural details at the guiding frame in the present invention;

[0038] Figure 10 Schematic diagram of the overall structure of the adsorption component in the present invention.

[0039] Reference numerals: 100, puncture catheter; 200, drainage catheter; 300, first three-way connecting pipe; 400, burette; 410, monitoring diaphragm; 500, second three-way connecting pipe; 600, syringe; 610, syringe barrel; 611, through groove; 620, piston; 621, through slot; 700, support and positioning module; 710, positioning sleeve; 711, long tube sleeve; 712, ring plate; 713, ball groove; 714, straight insertion cylinder; 720, adsorption component; 721, short sleeve; 722, ball; 723, top bent rod; 724, insertion cylinder; 725, driven rod; 726, spring; 727, bottom bent rod; 728, extrusion ball; 729, circular adsorption disc; 730, dressing fixing component; 731, elastic telescopic rod; 732, annular clamp; 740, guiding frame; 741, left clamping cylinder; 742, right clamping cylinder; 743, connecting block; 800, fixing base; 810, square insertion cylinder; 820, built-in block; 830, end head plate; 840, square suction cup; 900, control component; 910, negative pressure suction cup; 920, transmission rod; 930, driven gear; 940, motor; 950, driving gear; 960, spiral sleeve seat. Detailed implementation manners

[0040] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present invention in conjunction with the accompanying drawings of the specification.

[0041] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways than those specifically described herein. Those skilled in the art can make similar generalizations without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0042] Secondly, as used herein, an "embodiment" or "embodiments" refer to specific features, structures, or characteristics that may be included in at least one implementation of the present invention. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive of other embodiments.

[0043] Embodiment 1

[0044] Referring to Figures 1 to 10 As shown, this is the first embodiment of the present invention. This embodiment provides a puncture drainage device with numerical control monitoring function, including a puncture drainage module, a support positioning module 700, and a driving module.

[0045] The puncture drainage module is used for abdominal puncture and drainage. It includes a puncture catheter 100, a drainage catheter 200, and a syringe 600. The puncture catheter 100 penetrates into the abdominal cavity and introduces abdominal effusion into the syringe 600 through the drainage catheter 200.

[0046] Specifically, the drainage catheter 200 includes a front catheter segment, a burette 400, and a rear catheter segment that are arranged in sequence and connected. The front catheter segment is connected to the inlet end of the burette 400 and extends inward. A group of monitoring diaphragms 410 for monitoring and obtaining the dripping speed of the effusion are pasted at a position on the outer wall of the burette 400 opposite to the end of the front catheter segment. A group of indicator lights are assembled on the outer surface of the monitoring diaphragms 410 to receive abnormal signals from the monitoring diaphragms 410 and give an alarm.

[0047] Among them, the advantage of connecting the front catheter segment to the inlet end of the burette 400 and extending inward is that the dripping situation of the effusion in the front catheter segment can be observed whether the burette 400 is inclined, horizontal, or vertical. It is only necessary to avoid the effusion entering direction and the dripping direction in the front catheter segment from being opposite. The burette 400 can naturally hang down on the side of the abdomen without precisely controlling the position and direction of the burette 400.

[0048] Among them, the drainage catheter 200 is made of medical-grade polyvinyl chloride material, which is a soft and transparent plastic. The front catheter section is connected to the inlet end of the burette 400 and extends inward, so that the peritoneal effusion is introduced into the front catheter section through the puncture catheter 100 and led out from the end of the front catheter section. Since there is no direct contact between the end of the front catheter section and the burette 400, the effusion drips into the inner cavity of the burette 400 in a drip-by-drip manner. By observing the dripping situation of the effusion at the end of the front catheter section, it is possible to directly judge whether the puncture drainage device is blocked.

[0049] Secondly, the end of the front catheter does not come into direct contact with the effusion, which can prevent the backflow of the effusion in the inner cavity of the syringe 600 and cause secondary infection of the patient. At the same time, if the liquid at the end of the front catheter end flows back towards the puncture catheter 100, there will be a situation where there is no liquid in a section of the tube body at the front end of the front catheter end. It is possible to directly judge whether the liquid has a backflow phenomenon by observing the liquid flow situation at the front catheter end. Through this phenomenon, it is possible to judge whether the hemostatic forceps are clamped tightly when clamping the tube, so as to adjust the clamping force of the drainage catheter 200.

[0050] Among them, for the abnormal monitoring of the dripping speed of the effusion:

[0051] The monitoring diaphragm 410 includes a drip speed sensor for detecting the dripping speed of the liquid in the burette 400 and a control unit. The monitoring direction of the drip speed sensor is directly opposite to the liquid outlet end of the front catheter section. A speed threshold is set in the control unit. The control unit receives the signal from the drip speed sensor and compares it with the preset speed threshold. If it is detected that the dripping speed of the liquid in the burette 400 is lower than the set speed threshold and an abnormal signal is generated, it indicates that there is a blockage in the puncture drainage device, and the alarm mechanism is triggered;

[0052] Among them, the control unit is connected to the indicator light. When the control unit receives an abnormal signal, the alarm mechanism is activated and the indicator light flashes to give an alarm.

[0053] Furthermore, the front catheter section is communicated with the puncture catheter 100, and a three-way connecting pipe 300 with an integrated connection is provided in the middle of the front catheter section. The rear catheter section is communicated with the syringe 600, and a three-way connecting pipe 500 with an integrated connection is provided in the middle of the rear catheter section.

[0054] Among them, the burette 400 is also made of transparent medical-grade plastic material. If blockages occur in the puncture catheter 100, the rear catheter section, the front catheter section, and the burette 400, it is possible to directly check with the naked eye whether there are foreign objects such as blood clots in the rear catheter section, the front catheter section, and the burette 400, and thus directly judge the location where the blockage occurs.

[0055] In the middle of the front catheter section, there is a three-way connecting pipe one 300 with an integrated connection. In the middle of the rear catheter section, there is a three-way connecting pipe two 500 with an integrated connection. The ends of the three-way connecting pipe one 300 and the three-way connecting pipe two 500 are sealed with silicone plugs. By injecting normal saline into the three-way connecting pipe one 300 or the three-way connecting pipe two 500, the blockage can be flushed away. By clamping the drainage catheter 200 with a hemostatic forceps, the normal saline can be directed towards the blockage location.

[0056] If the blockage location is in the puncture catheter 100, clamp the liquid outlet end of the three-way connecting pipe one 300 with a hemostatic forceps, and inject normal saline into the three-way connecting pipe one 300 through a syringe to flush open the blockage; if the blockage location is in the burette 400 or the rear catheter section, clamp the liquid inlet end of the three-way connecting pipe one 300 with a hemostatic forceps, and inject normal saline into the three-way connecting pipe one 300 through a syringe to flush open the blockage; if the blockage location is in the second half of the rear catheter section, clamp the liquid inlet end of the three-way connecting pipe two 500 with a hemostatic forceps, and inject normal saline into the three-way connecting pipe one 300 through a syringe to flush open the blockage.

[0057] When flushing the blockage with normal saline, clamp the surface of the drainage catheter 200 at the position that needs to be blocked with a hemostatic forceps. There is no need to set up overly complex anti-reflux components in the drainage catheter 200, which will increase the economic cost of the puncture drainage device. Moreover, the more components are set in the drainage catheter 200, the more narrow places will appear, and it is more likely to be blocked. Even if the drainage catheter 200 can be dredged with normal saline, frequent flushing actions are also likely to cause discomfort to the patient.

[0058] Embodiment 2

[0059] As Figures 5 to 10 shown, in the second embodiment of the present invention, based on the previous embodiment, the difference is the support and positioning module 700. The support and positioning module 700 includes a positioning sleeve 710, an adsorption component 720, a dressing fixing component 730, and a guiding frame 740. The positioning sleeve 710 is sleeved on the tube body of the drainage catheter 200 near the puncture catheter 100, and positions itself by adsorbing to the abdomen through the adsorption component 720. The dressing fixing component 730 is inserted into the end of the positioning sleeve 710 and abuts against the surface of the dressing, so that the dressing closely adheres to the wound. The drainage catheter 200 passes through the positioning sleeve 710 and is clamped by the guiding frame 740 to bend the drainage catheter 200, and the bent drainage catheter 200 positions the positioning sleeve 710.

[0060] Among them, as Figures 8 - 10As shown in the figure, the positioning sleeve 710 includes a long tube sleeve 711 that closely adheres to the outer wall of the drainage catheter 200. Multiple annular plates 712 are evenly distributed on the surface of the long tube sleeve 711, and ball grooves 713 are provided on both the upper and lower end faces of the annular plates 712. The adsorption assembly 720 is engaged within two adjacent annular plates 712 and rotates about the center line of the long tube sleeve 711.

[0061] The number of the adsorption assemblies 720 is multiple groups. The multiple groups of adsorption assemblies 720 rotate about the center line of the long tube sleeve 711. By adsorbing on the abdomen through the adsorption assemblies 720, the drainage catheter 200 and the puncture catheter 100 are made to stand straight above the abdomen, avoiding the puncture catheter 100 from swinging due to the drag of the drainage catheter 200 when the puncture catheter 100 is in the state of piercing the abdomen, and being unable to fix the piercing direction of the puncture catheter 100.

[0062] Through the friction between the adsorption assembly 720 and the drainage catheter 200, it is avoided that the puncture catheter 100 is dragged deeper into the abdominal cavity by the drainage catheter 200, resulting in an excessive piercing depth of the puncture catheter 100 and damage to the internal tissues of the abdominal cavity.

[0063] Among them, the adsorption assembly 720 includes a short sleeve 721 sleeved on the surface of the drainage catheter 200, a connecting pipe, and an adsorption head. The short sleeve 721 is connected to the adsorption head through the connecting pipe. Multiple balls 722 are embedded on both the upper and lower end faces of the short sleeve 721. The multiple balls 722 roll within the ball grooves 713 and change the adsorption position of the adsorption head through the rotation of the short sleeve 721.

[0064] The connecting pipe includes a bottom bent rod 727 engaged within the adsorption head and a top bent rod 723 connected to the short sleeve 721. An insertion cylinder 724 is fixedly connected to the bottom end of the bottom bent rod 727, and a telescopic member is fixedly connected to the top end of the bottom bent rod 727. The telescopic member passes through the insertion cylinder 724 and is fixedly connected to the top bent rod 723.

[0065] The telescopic member includes a spring 726 and a driven rod 725 located at the center of the spring 726. By stretching the spring 726, the drainage catheter 200 is made straight.

[0066] Specifically, the connection between the adsorption head and the bottom bent rod 727 is arranged in a ball-and-socket joint shape. The purpose is that when the puncture catheter 100 is obliquely inserted into the abdominal cavity, the adsorption head and the bottom bent rod 727 rotate and adjust so that the adsorption surface of the adsorption head faces the abdomen. The puncture catheter 100 is jointly restricted by other multiple groups of adsorption assemblies 720 to fix the position and piercing direction of the puncture catheter 100.

[0067] The suction head includes a connecting circular suction disc 729 and a pressing ball 728. There is a hard circular block connecting the circular suction disc 729 and the pressing ball 728. This hard circular block is used to engage with the bottom bent rod 727. At the same time, a plurality of round holes are provided on the surface of the hard circular block. Through these round holes, gas enters or exits the inner cavity of the pressing ball 728. When the air in the inner cavity of the pressing ball 728 is exhausted, the circular suction disc 729 is pressed against the abdomen. The pressure difference inside and outside the circular suction disc 729 causes the circular suction disc 729 to adsorb to the abdomen for positioning.

[0068] Multiple of the said balls 722 roll in the ball groove 713 and change the suction position of the suction head by the rotation of the short sleeve 721. The rolling connection method reduces the friction between the suction component 720 and the positioning sleeve 710. When adjusting the position of the suction component 720 on the surface of the positioning sleeve 710, since the friction between the positioning sleeve 710 and the suction component 720 is rolling friction, the suction component 720 rotates with the center line of the long tube sleeve 711 as the axis. The rotation of the suction component 720 does not affect the long tube sleeve 711 and cause the position deviation of the puncture catheter 100.

[0069] As Figure 8 and Figure 10 As shown, the dressing fixing component 730 includes an elastic telescopic rod 731 and an annular clip 732. The elastic telescopic rod 731 is adapted to the straight insertion tube 714 and is fixed to the end face of the annular clip 732. The annular clip 732 presses on the upper surface of the dressing and causes the elastic telescopic rod 731 to contract.

[0070] The guiding frame 740 includes a left clamping cylinder 741, a right clamping cylinder 742 and a connecting block 743. The left clamping cylinder 741 is fixedly connected to the right clamping cylinder 742 through the connecting block 743. The connecting block 743 is closely attached to the outer wall of the drainage catheter 200. The left clamping cylinder 741 is closely attached to the outer wall of the long tube sleeve 711. The drainage catheter 200 passes through the long tube sleeve 711 and is clamped by the right clamping cylinder 742. The clamped and bent drainage catheter 200 blocks the long tube sleeve 711 from sliding upward on the surface of the drainage catheter 200.

[0071] When the elastic telescopic rod 731 generates a reaction force through contraction and then abuts against the surface of the ring plate 712, the long tube sleeve 711 has an upward tendency. The bent drainage catheter 200 blocks the upward sliding tendency of the long tube sleeve 711 on the surface of the drainage catheter 200. Among them, the spring 726 is in a stretched state. The reaction force generated by the spring 726 and the reaction force generated by the elastic telescopic rod 731 offset each other to make the position of the drainage catheter 200 in force balance.

[0072] Embodiment 3

[0073] Refer to Figures 3 to 6As shown in the figure, this is the third embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that the driving module includes a fixed seat 800 and a control component 900. The fixed seat 800 is arranged at the bottom end of the syringe 600 to form a support and provide support for the control component 900. The control component 900 adsorbs to the tail end of the syringe 600 and gradually increases the inner cavity of the syringe 600.

[0074] The syringe 600 includes a syringe barrel 610 and a piston 620 that slides in the inner cavity of the syringe barrel 610. A through groove 611 is provided on the surface of the syringe barrel 610, and a through slot 621 penetrates through the surface of the piston 620; the fixed seat 800 includes a square insertion cylinder 810 inserted into the through groove 611 and an inner block 820 inserted into the through slot 621. One end of the square insertion cylinder 810 facing away from the inner block 820 is fixedly connected to an end plate 830. By pulling the inner block 820, the end plate 830 presses against the end of the syringe barrel 610. The inner block 820 slides and engages with the inner cavity of the square insertion cylinder 810 and is fixedly connected to the piston 620.

[0075] A square suction cup 840 is fixed to the bottom end of the square insertion cylinder 810 and adsorbs to a plane through the square suction cup 840.

[0076] The control component 900 includes a negative pressure suction cup 910 that adsorbs to the end face of the syringe barrel 610. A set of transmission rods 920 are rotatably installed at one end of the negative pressure suction cup 910 facing away from the syringe barrel 610, and a set of driven gears 930 are fixedly connected to the tail ends of the transmission rods 920.

[0077] An electric motor 940 and a spiral sleeve seat 960 are installed on the surface of the inner block 820. The output end of the electric motor 940 is fixedly connected to a set of driving gears 950. The driving gears 950 are in meshing transmission with the driven gears 930. The spiral sleeve seat 960 is connected to the surface of the piston 620.

[0078] Among them, the inner block 820 slides in the inner cavity of the square insertion cylinder 810 and drives the piston 620 to slide in the inner cavity of the syringe barrel 610. When the piston 620 slides in the inner cavity of the syringe barrel 610 at a uniform speed, the inner cavity volume of the piston 620 gradually increases, so that the negative pressure in the inner cavity of the piston 620 gradually decreases. The gradually decreasing negative pressure causes the abdominal cavity effusion to be introduced into the syringe 600 internally at a constant speed and in a fixed quantity.

[0079] Among them, both ends of the transmission rod 920 are smooth rods, and the middle part is provided with a worm. When the motor 940 drives the driving gear 950 to rotate at a constant speed, the motor 940 meshes with the driven gear 930 and is synchronously rotated in the reverse direction. The rotating driven gear 930 drives the transmission rod 920 to rotate. The transmission rod 920 rotates within the spiral sleeve seat 960 and moves backward at a constant speed along the central axis direction of the transmission rod 920. The transmission rod 920 that moves backward at a constant speed pulls the negative pressure suction cup 910 to move synchronously, so that the piston 620 adsorbed by the negative pressure suction cup 910 moves backward synchronously. The inner cavity volume of the piston 620 gradually increases, so that the negative pressure in the inner cavity of the piston 620 gradually decreases. The gradually decreasing negative pressure causes the abdominal cavity effusion to be introduced into the syringe 600 at a constant speed and in a fixed quantity.

[0080] The constant-speed rotation of the motor 940 causes the piston 620 to move backward at a constant speed, avoiding the uneven speed of manual operation. The uneven suction of the abdominal cavity effusion causes discomfort to the patient. Secondly, it is difficult to observe the micro-blockage of the puncture drainage device due to the uneven speed of the piston 620. By the time it is discovered, the blockage situation is serious and difficult to handle. The method of this application that does not require manual handling reduces the difficulty of the operation and liberates the doctor's hands at the same time, allowing the doctor to watch the suction situation of the abdominal cavity effusion more carefully.

[0081] Working principle:

[0082] Slip the support positioning module 700 over the surface of the drainage catheter 200, hold the end of the puncture catheter 100 and insert the puncture catheter 100 into the abdominal cavity. Adjust the position and angle of the puncture catheter 100, and apply a dressing or gauze at the wound position to avoid wound infection.

[0083] Pull the drainage catheter 200 to make the drainage catheter 200 straight, and at the same time move the support positioning module 700 forward, so that the long tube sleeve 711 covers the connection between the puncture catheter 100 and the drainage catheter 200. At the same time, press the annular clip 732 on the dressing or gauze at the wound position. The elastic telescopic rod 731 is in a contracted state. Squeeze the squeeze ball 728 to discharge the gas in the squeeze ball 728. The circular suction disc 729 adsorbs on the abdomen. At this time, the spring 726 is in a stretched state.

[0084] It should be noted that multiple groups of adsorption components 720 are not evenly distributed around the wound. This method is easy to hinder the doctor from achieving.

[0085] Press the guide frame 740 on the upper and lower ends of the positioning sleeve 710, so that the left clamping cylinder 741 tightly clamps on the surface of the positioning sleeve 710, and make the drainage catheter 200 pass through the right clamping cylinder 742 and be folded. The long tube sleeve 711 is clamped inside the folded drainage catheter 200 to avoid pulling the burette 400 or the rear catheter section and causing the puncture catheter 100 to shift, resulting in further damage to the patient's wound position.

[0086] Turn on the switch of the motor 940, so that the output end of the motor 940 drives the driving gear 950 to rotate evenly. The driving gear 950 and the driven gear 930 are in meshing transmission. As a result, while the driven gear 930 and the transmission rod 920 are rotating, they also generate a linear displacement. The transmission rod 920 generating the linear displacement adsorbs and pulls the piston 620 through the negative pressure suction cup 910, so that the abdominal cavity effusion enters the uniform speed inner cavity of the syringe 600 through the puncture catheter 100 and the drainage catheter 200.

[0087] Among them, the support and positioning module 700, the fixed seat 800, the control component 900 and the drainage catheter 200 in this device are all detachably connected, which can be recycled. At the same time, it does not increase the structure of the drainage catheter 200 itself, reducing costs. Secondly, the support and positioning module 700, the fixed seat 800 and the control component 900 are all externally placed on the surface of the drainage catheter 200, avoiding the occurrence of narrow places in the pipeline of the drainage catheter 200. Although some puncture drainage devices on the market control the fluid flow direction through an internal adjustment mechanism, this mechanism increases the probability of blockage, increases the difficulty of the operation, and at the same time, frequent dredging and blocking easily cause discomfort to the patient.

[0088] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A puncture drainage device with a digital control monitoring function, characterized in that: include: A puncture and drainage module, which is used for abdominal puncture and drainage, and comprises a puncture catheter (100), a drainage catheter (200) and a syringe (600); the puncture catheter (100) punctures the abdominal cavity and introduces the abdominal fluid into the syringe (600) through the drainage catheter (200); A support and positioning module (700), the support and positioning module (700) comprising a positioning sleeve (710), an adsorption component (720), a dressing fixing component (730) and a guide frame (740), the positioning sleeve (710) being sleeved on one end of the tube body of the drainage catheter (200) close to the puncture catheter (100), and being adsorbed on the abdomen and positioned itself through the adsorption component (720), the dressing fixing component (730) being inserted into the end of the positioning sleeve (710) and abutting against the dressing surface so that the dressing is closely attached to the wound, the drainage catheter (200) passing through the positioning sleeve (710) and being clamped by the guide frame (740) so that the drainage catheter (200) is bent, and the bent drainage catheter (200) is used to position the positioning sleeve (710); A driving module, comprising a fixing seat (800) and a control component (900), wherein the fixing seat (800) is arranged at the bottom end of the syringe (600) to form a support and provide support to the control component (900), and the control component (900) is adsorbed on the rear end of the syringe (600) to gradually increase the inner cavity of the syringe (600); The positioning sleeve (710) comprises a long tube sleeve (711) which is closely attached to the outer wall of the drainage catheter (200), a plurality of ring plates (712) are evenly spaced on the surface of the long tube sleeve (711), and ball grooves (713) are provided on the upper and lower end surfaces of the ring plates (712), the adsorption component (720) is engaged in two adjacent groups of ring plates (712), and rotates around the center line of the long tube sleeve (711) as an axis, a plurality of groups of straight insert tubes (714) are extended from the surface of a group of the ring plates (712) at the bottom, and the dressing fixing component (730) is inserted into the inner cavity of the straight insert tube (714); The adsorption assembly (720) comprises a short sleeve (721) sleeved on the surface of the drainage catheter (200), a connecting tube and an adsorption head, wherein the short sleeve (721) is connected to the adsorption head via the connecting tube, and the upper and lower end surfaces of the short sleeve (721) are both inlaid with a plurality of balls (722), and the plurality of balls (722) roll in the ball groove (713) and change the adsorption position of the adsorption head through the rotation of the short sleeve (721); The connecting tube comprises a bottom curved rod (727) engaged in the adsorption head and a top curved rod (723) connected to the short sleeve (721); an insert sleeve (724) is fixedly connected to the bottom end of the bottom curved rod (727); a telescopic member is fixedly connected to the top end of the bottom curved rod (727); the telescopic member passes through the insert sleeve (724) and is fixedly connected to the top curved rod (723); The telescopic member comprises a spring (726) and a driven rod (725) located at the center of the spring (726), and the drainage catheter (200) is straightened by the extension of the spring (726); The guide frame (740) comprises a left cartridge (741), a right cartridge (742) and a connecting block (743); the left cartridge (741) is fixedly connected to the right cartridge (742) via the connecting block (743); the connecting block (743) is in close contact with the outer wall of the drainage catheter (200); the left cartridge (741) is in close contact with the outer wall of the long tube sleeve (711); the drainage catheter (200) passes through the long tube sleeve (711) and is clamped by the right cartridge (742); the clamped and bent drainage catheter (200) prevents the long tube sleeve (711) from sliding on the surface of the drainage catheter (200); The dressing fixing assembly (730) comprises an elastic telescopic rod (731) and an annular clamp (732); the elastic telescopic rod (731) is adapted to the straight plug tube (714) and fixed to the end surface of the annular clamp (732); the annular clamp (732) is pressed against the upper surface of the dressing and causes the elastic telescopic rod (731) to contract.

2. The puncture drainage device with digital control monitoring function according to claim 1, characterized in that: The drainage catheter (200) comprises a front catheter section, a burette (400), and a rear catheter section which are arranged in sequence and connected to each other; the front catheter section is connected to the inlet end of the burette (400) and extends inwardly; a group of monitoring diaphragms (410) for monitoring and obtaining the dripping speed of the accumulated liquid are attached to the outer wall of the burette (400) at a position directly opposite to the end of the front catheter section; and a group of indicator lights are installed on the outer surface of the monitoring diaphragm (410) for receiving abnormal signals from the monitoring diaphragm (410) and generating an alarm; The front catheter section is connected to the puncture catheter (100), and an integrally connected three-way connecting tube 1 (300) is provided in the middle of the front catheter section. The rear catheter section is connected to the syringe (600), and an integrally connected three-way connecting tube 2 (500) is provided in the middle of the rear catheter section.

3. The puncture drainage device with digital control monitoring function according to claim 2, characterized in that: The syringe (600) comprises a syringe (610) and a piston (620) sliding in the inner cavity of the syringe (610); a through groove (611) is provided on the surface of the syringe (610); and a through groove (621) is provided on the surface of the piston (620); The fixing seat (800) comprises a square insert tube (810) inserted into the through groove (611) and a built-in block (820) inserted into the through groove (621); an end of the square insert tube (810) facing away from the built-in block (820) is fixedly connected to an end plate (830); by pulling the built-in block (820) so that the end plate (830) is pressed against the end of the syringe (610), the built-in block (820) slides and engages with the inner cavity of the square insert tube (810) and is fixedly connected to the piston (620).

4. The puncture drainage device with digital control monitoring function as claimed in claim 3, characterized in that: The control assembly (900) comprises a negative pressure suction cup (910) adsorbed on the end surface of the syringe (610), a group of transmission rods (920) are rotatably mounted at one end of the negative pressure suction cup (910) away from the syringe (610), and a group of driven gears (930) are fixedly connected to the rear end of the transmission rod (920).

5. The puncture drainage device with digital control monitoring function according to claim 4, characterized in that: A motor (940) and a spiral sleeve (960) are mounted on the surface of the built-in block (820); a group of driving gears (950) are fixedly connected to the output end of the motor (940); the driving gears (950) and the driven gears (930) are arranged in meshing transmission; and the spiral sleeve (960) is connected to the surface of the piston (620).

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