A device for peritoneal lavage collection of free cells

Abstract

The application relates to a peritoneal cavity free cell flushing and collecting device which comprises an operating body, a handle, a flushing pipe and a suction pipe; the flushing pipe is connected with the operating body, the suction pipe is arranged in the flushing pipe, the flushing pipe is not communicated with the suction pipe, the flushing pipe is connected with a flushing structure, the flushing structure is a pulse flushing structure; the suction pipe is connected with a suction structure in the operating body, the suction structure is a structure for sucking and collecting flushing liquid, a guide structure capable of adjusting a suction angle is arranged in the suction pipe; the flushing structure comprises a connecting pipe one connected with the flushing pipe, a water discharger capable of pulse water discharge, and a driving box connected with the water discharger.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a device for collecting and rinsing free cells in the peritoneum. Background Technology

[0002] Cytological examination of ascites or peritoneal lavage fluid is currently the gold standard for diagnosing free cancer cells in the peritoneal cavity. It helps to detect micrometastases that are not visible to the naked eye. The specific procedure is to first use 500 ml of warm saline to irrigate the peritoneum and obtain the irrigating fluid, avoiding direct irrigation of the primary lesion. After irrigation, the irrigating fluid is collected and a sample is prepared.

[0003] During peritoneal lavage, the lavage fluid often carries free cancer cells that have settled deep within the body. However, when using aspirators for aspiration, the suction port is easily blocked by fat deposits in the patient's body. Furthermore, the tips of most commonly used instruments are rigid straight tubes, which are not very effective at aspirating lavage fluid from deep within the intestines or areas where free cancer cells are prone to settle. Existing peritoneal free cell lavage and collection devices also have the problem of incomplete aspiration of lavage fluid, resulting in its retention in the peritoneal cavity. Moreover, existing devices mostly use the same tube for lavage and aspiration, making the operation cumbersome and time-consuming.

[0004] Therefore, there is a need for an easy-to-operate device that can effectively prevent the suction port from becoming blocked and can effectively extract the flushing fluid from deep intestinal sites or sites where free cancer cells are easily deposited. In view of the above problems, the present invention provides a peritoneal free cell flushing and collection device. Summary of the Invention

[0005] To overcome the problems mentioned in the background art, the present invention provides a peritoneal free cell flushing and collection device.

[0006] A peritoneal free cell flushing and collection device includes an operating body, a handle, a flushing tube, and a suction tube. The flushing tube is connected to the operating body, and a suction tube is installed inside the flushing tube, but the flushing tube and the suction tube are not connected. A flushing structure is connected to the outside of the flushing tube, and the flushing structure is a pulse-type flushing structure. The suction tube is connected to a suction structure inside the operating body, and the suction structure is a structure for suctioning and collecting flushing fluid. A guide structure that can adjust the suction angle is provided inside the suction tube. The flushing structure includes: a connecting tube connected to the flushing tube, a drainer capable of pulse-type water discharge, and a drive box connected to the drainer.

[0007] Furthermore, the first end of the flushing pipe is threaded to the operating body and a leak-proof rubber gasket is provided to ensure the sealing of the first end of the flushing pipe.

[0008] Furthermore, a connection port is provided on the side of the first end of the flushing pipe, through which it is connected to the flushing structure.

[0009] Furthermore, the second end of the flushing tube is arrayed with water outlet holes and a port for the suction tube to extend out, through which the flushing fluid flushes the abdominal cavity.

[0010] Furthermore, the first end of the connecting pipe is connected to the connecting port, and the second end is connected to the drain, so that the drain supplies water to the flushing pipe.

[0011] Furthermore, the drainer is provided with a drain outlet at the first end and a water inlet on the side of the first end, and a one-way valve 1 and a one-way valve 2 are provided at the drain outlet and the water inlet. A piston is provided inside the drainer to draw in and discharge the flushing liquid. When the piston retracts, the one-way valve 2 of the water inlet opens, and the flushing liquid enters from the water inlet. At the same time, the one-way valve 1 of the drain outlet closes, realizing the drawing in of the flushing liquid. When the piston pushes forward, the one-way valve 1 of the drain outlet opens, and the flushing liquid is discharged from the water outlet. At the same time, the one-way valve 2 of the water inlet closes, realizing the discharge of the flushing liquid.

[0012] Furthermore, the drive box includes: a motor, a power supply device for supplying power to the motor and a motor switch, a crank connected to the output end of the motor and a rocker arm connected to the crank, and a fixing clamp for fixing the drive box.

[0013] Furthermore, one end of the rocker arm is hinged to the crank, and the other end is hinged to the piston. The rotation of the electric motor enables the rocker arm to drive the piston to continuously reciprocate, thereby realizing the pulse-type water discharge of the drainer.

[0014] Furthermore, the electric motor and power supply device are installed inside the drive box, and a motor switch is installed on the top of the drive box. By starting the electric motor, the reciprocating motion of the piston is realized, thereby realizing the pulsed water output of the flushing pipe.

[0015] Furthermore, the fixing clip is located at the bottom of the drive box, which can be used to fix the drive box and reduce the vibration of the rinsing structure during rinsing.

[0016] Furthermore, the first end of the suction tube is connected to the suction connector, and the second end of the suction tube extends through the second end port of the flushing tube. The suction tube and the flushing tube are not connected, so that abdominal cavity flushing and the suction collection of flushing fluid can be performed simultaneously.

[0017] Furthermore, the portion of the suction tube extending from the second end port of the rinsing tube is configured as a spiral section, and a suction hole is provided on the spiral section. This configuration reduces the blockage of the suction tube by adipose tissue in the human body during the suction collection of rinsing fluid.

[0018] Furthermore, the diameter of the outer tangent circle of the spiral segment of the suction tube is smaller than the outer diameter of the suction tube, and the length of the spiral tube is 3 to 5 centimeters. The spiral segment can be retracted into the suction tube, and the flushing fluid precipitated in deep intestinal sites or sites where free cancer cells are easily deposited can be aspirated through the spiral segment.

[0019] Furthermore, the guide structure inside the suction tube includes: a branch tube connected to the suction tube, and a guide wire arranged along the inner wall of the suction tube.

[0020] Furthermore, the first end of the guide wire is connected to the spiral section of the suction tube, and the second end of the guide wire extends through the branch tube and is equipped with a pull ring. The spiral section of the suction tube can be pulled back by the pull ring, and the suction angle of the spiral section can be finely adjusted by extending the guide wire forward and rotating the pull ring.

[0021] Furthermore, a leak-proof layer is installed at the connection between the branch pipe and the suction pipe to prevent the flushing fluid from overflowing from the branch pipe and to ensure the sealing of the suction pipe.

[0022] Furthermore, the suction structure is disposed in the placement cavity within the operating body, and the suction structure is used to attract and collect the rinsing fluid.

[0023] Furthermore, the suction structure includes: a pump body disposed in the placement cavity, a second electric motor for driving suction, a fan blade for drawing up the rinsing fluid, a second connecting pipe for connecting the suction tube, and a drain pipe connected to the collection bag; a second motor switch for turning on the second electric motor, and a battery compartment for storing the battery that powers the second electric motor; this configuration enables the extraction and collection of rinsing fluid from the abdominal cavity.

[0024] Furthermore, the second motor is installed in a motor slot within the operating handle and has the same through hole as the pump body. The output end of the second motor extends into the pump body through the through hole.

[0025] Furthermore, the fan blade is connected to the output end of the second motor, and the fan blade is driven to rotate by the second motor, thereby realizing the suction of the flushing liquid.

[0026] Furthermore, the second connecting pipe and the drain pipe are connected to the pump body, and the second connecting pipe and the drain pipe are positioned opposite each other. By turning on the second motor, the pump body draws the rinsing fluid in the abdominal cavity through the second connecting pipe and the suction pipe. When the rinsing fluid is drawn into the pump body, the rinsing fluid is discharged through the drain pipe into the collection bag connected to the drain pipe.

[0027] Furthermore, the handle is divided into handle one and handle two, which are respectively connected to the operating body. Motor switch two is set on handle two, and battery slot is set in handle one.

[0028] Furthermore, the second motor switch is a normally open contact. When the second motor switch is pressed, the normally open contact closes, the second motor is energized, and the suction structure draws the rinsing fluid. When the second motor switch is released, the contact opens, the second motor is de-energized, and the suction structure stops drawing fluid. This design allows the suction structure to selectively draw rinsing fluid flexibly, which is convenient for suction operation, reduces the chance of tube blockage, and prevents rinsing fluid from remaining in the patient's abdominal cavity.

[0029] Furthermore, the operating body is divided into an operating main body and a sliding cover. The operating main body is provided with a protruding stop, and the sliding cover is provided with a sliding groove that matches the shape of the stop. The operating body is opened by the stop and the sliding groove. This setting facilitates the disinfection and cleaning of the suction structure inside the operating body and the connection of the various pipes of the suction structure.

[0030] In use, first connect the carrier containing the rinsing fluid through the inlet of the rinsing device, fix it to the side of the bed or place it directly next to the patient using the fixing device on the drive box, and insert the integrated rinsing tube and suction tube into the patient's abdominal cavity. Turn on the motor switch to realize the pulsed water output of the rinsing tube to rinse the abdominal cavity; by extending the guide wire forward and extending the spiral section of the second end of the suction tube outward, press the motor switch on the handle, and the motor in the operating body will start and drive the fan blade to draw the rinsing fluid. During the suction process, the suction angle can be adjusted by rotating the pull ring connected to the guide wire. After the rinsing fluid is drawn out, it is discharged through the drain pipe and collected in the collection bag connected to the drain pipe.

[0031] The beneficial effects of this invention are as follows: (1) By integrating the rinsing tube and the suction tube into a single structure, the simultaneous rinsing of the abdominal cavity and the suction of the rinsing fluid are achieved. The spiral section and suction hole on the suction tube effectively prevent the problem of fat masses clogging the suction tube. (2) By providing a suction tube with an extendable front end and a guide wire that can adjust the suction angle, the suction of rinsing fluid in deep interintestinal areas or areas where free cancer cells are easily deposited is enhanced. (3) Through the suction structure and the motor switch that controls the suction mechanism, the suction structure can flexibly and selectively suction the rinsing fluid, avoiding the retention of the rinsing fluid in the patient's abdominal cavity. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a top view schematic diagram of the present invention;

[0034] Figure 3 This is a front sectional view of the present invention;

[0035] Figure 4 This is a top sectional view of the present invention;

[0036] Figure 5 This is a schematic diagram of the front end of the flushing tube and suction tube of the present invention;

[0037] Figure 6 This is a cross-sectional schematic diagram of the front end of the flushing tube and suction tube of the present invention;

[0038] Figure 7 This is a schematic diagram of the flushing structure of the present invention;

[0039] Figure 8 This is a schematic diagram of the drainer and drive box of the present invention;

[0040] Figure 9 This is a cross-sectional schematic diagram of the drainer and drive box of the present invention;

[0041] In the diagram: 1. Operating body; 11. Handle 1; 12. Handle 2; 13. Sliding cover; 14. Placement chamber; 2. Flushing pipe; 21. Connection port 1; 22. Water outlet; 23. Port end; 3. Connection pipe 1; 31. Drainer; 311. Drain outlet; 312. Water inlet; 313. One-way valve 1; 314. One-way valve 2; 315. Piston; 32. Drive box; 321. Motor 1; 322. Power supply device; 323. Motor switch 1; 324. Crank; 325. Rocker arm; 33. Fixing clamp; 4. Suction pipe; 41. Spiral section; 42. Suction hole; 43. Branch pipe; 44. Guide wire; 45. Pull ring; 5. Pump body; 51. Fan blade; 52. Drain pipe; 53. Motor switch 2; 54. Battery compartment; 55. Motor 2. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention are clearly and completely described below through specific examples. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example 1

[0044] refer to Figure 1—4, a peritoneal free cell flushing and collection device, comprising an operating body 1, a handle, a flushing tube 2, and a suction tube 4; the flushing tube 2 is connected to the operating body 1, and the suction tube 4 is disposed inside the flushing tube 2, but the flushing tube 2 and the suction tube 4 are not connected; the flushing tube 2 is externally connected to a flushing structure, which is a pulse-type flushing structure; the suction tube 4 is connected to a suction structure inside the operating body 1, which is a structure for suctioning and collecting flushing fluid, and a guide structure that can adjust the suction angle is disposed inside the suction tube 4; the flushing structure includes: a connecting tube 3 connected to a connecting port 21, a drain 31 capable of pulse-type water discharge, and a drive box 32 connected to the drain 31.

[0045] Example 2

[0046] refer to Figure 3 —6. Based on Example 1, the flushing pipe 2 is configured such that the first end of the flushing pipe 2 is threadedly connected to the operating body 1, and a leak-proof rubber gasket is provided to ensure the sealing of the first end of the flushing pipe 2.

[0047] A connection port 21 is provided on the side of the first end of the flushing pipe 2, and it is connected to the flushing structure through the connection port 21.

[0048] The second end of the flushing tube 2 is arrayed with water outlet holes 22 and a port for the suction tube 4 to extend out. The flushing fluid is used to flush the abdominal cavity through the water outlet holes 22.

[0049] Example 3

[0050] refer to Figure 7 —9. Based on Example 2, the flushing structure is configured such that the first end of the connecting pipe 3 is connected to the connecting port 21, and the second end is connected to the drain 31, so that the drain 31 supplies water to the flushing pipe 2.

[0051] The drainer 31 has a drain outlet 311 at its first end and an inlet 312 on its side at the first end. A one-way valve 313 and a one-way valve 314 are installed at the drain outlet 311 and the inlet 312. The drainer 31 has a piston 315 inside that can draw in and discharge flushing fluid. When the piston 315 retracts, the one-way valve 314 of the inlet 312 opens, and the flushing fluid enters from the inlet 312. At the same time, the one-way valve 313 of the drain outlet 311 closes, thus drawing in the flushing fluid. When the piston 315 pushes forward, the one-way valve 313 of the drain outlet 311 opens, and the flushing fluid is discharged from the outlet. At the same time, the one-way valve 314 of the inlet 312 closes, thus discharging the flushing fluid.

[0052] The drive box 32 includes: a motor 321, a power supply device 322 for supplying power to the motor and a motor switch 323, a crank 324 connected to the output end of the motor 321 and a rocker arm 325 connected to the crank 324, and a fixing clip 33 for fixing the drive box 32.

[0053] One end of the rocker arm 325 is hinged to the crank 324, and the other end is hinged to the piston 315. The rocker arm 325 drives the piston 315 to continuously reciprocate through the rotation of the motor, thereby realizing the pulse-type water discharge of the drainer 31.

[0054] The motor 321 and power supply device 322 are installed inside the drive box 32. The motor switch 323 is installed on the top of the drive box 32. By starting the motor 321, the reciprocating motion of the piston 315 is realized, thereby realizing the pulsed water output of the flushing pipe 2.

[0055] The fixing clip 33 is located at the bottom of the drive box 32. The fixing clip 33 can be used to fix the drive box 32 and reduce the vibration of the rinsing structure during rinsing.

[0056] Example 4

[0057] refer to Figure 3 —6. Based on Example 1, the suction tube 4 is configured such that the first end of the suction tube 4 is connected to the suction connector, the second end of the suction tube 4 extends through the second end port of the flushing tube 2, and the suction tube 4 and the flushing tube 2 are not connected, so that the abdominal cavity flushing and the suction and collection of the flushing fluid can be performed simultaneously.

[0058] The portion of the suction tube 4 extending through the second end port of the flushing tube 2 is configured as a spiral section 41, and a suction hole 42 is provided on the spiral section 41. This configuration reduces the blockage of the suction tube 4 by adipose tissue in the human body when collecting flushing fluid.

[0059] The diameter of the outer tangent circle of the spiral section 41 of the suction tube 4 is smaller than the outer diameter of the suction tube 4, and the length of the spiral tube is 3 to 5 cm. The spiral section 41 can be retracted into the suction tube 4. The flushing fluid that is deposited in the deep part of the intestine or in the part of the cancer cells that are easy to settle can be aspirated through the spiral section 41.

[0060] The guide structure inside the suction tube 4 includes: a branch tube 43 connected to the suction tube 4, and a guide wire 44 arranged along the inner wall of the suction tube 4.

[0061] The first end of the guide wire 44 is connected to the spiral section 41 of the suction tube 4, and the second end of the guide wire 44 extends through the branch tube 43 and is provided with a pull ring 45. The spiral section 41 of the suction tube 4 can be pulled back by the pull ring 45. By extending the guide wire 44 forward and the spiral section 41 extending forward, the suction angle of the spiral section 41 during suction can be finely adjusted by rotating the pull ring 45.

[0062] A leak-proof layer and a damping element are provided at the connection between the branch pipe 43 and the suction pipe 4 to prevent flushing fluid from overflowing from the branch pipe 43 and to ensure the sealing of the suction pipe 4.

[0063] Example 5

[0064] refer to Figure 2 —6. Based on Example 1, the suction structure is set up in the placement cavity 14 inside the operating body 1, and the suction structure is used to attract the rinsing liquid and collect it after attraction.

[0065] The suction structure includes: a pump body 5 disposed in the placement cavity 14; a second electric motor 55 for driving suction; a fan blade 51 for drawing up the rinsing fluid; a second connecting pipe connected to the suction pipe 4; a drain pipe 52 connected to the collection bag; a second motor switch 53 for turning on the second electric motor 55; and a battery compartment 54 for placing the battery that powers the second electric motor 55. This arrangement enables the extraction and collection of rinsing fluid from the abdominal cavity.

[0066] The second motor 55 is installed in the motor slot inside the operating handle and has the same through hole as the pump body 5. The output end of the second motor 55 extends into the pump body 5 through the through hole.

[0067] The fan blade 51 is connected to the output end of the second motor 55, and the second motor 55 drives the fan blade 51 to rotate, thereby realizing the suction of the flushing fluid.

[0068] Connecting pipe 2 and drain pipe 52 are connected to pump body 5. Connecting pipe 2 and drain pipe are positioned opposite each other. By turning on motor 2 55, pump body 5 draws rinsing fluid from the abdominal cavity through connecting pipe 2 and suction pipe 4. When the rinsing fluid is drawn into pump body 5, it is discharged through drain pipe 52 into collection bag connected to drain pipe 52.

[0069] The handle is divided into handle one 11 and handle two 12, which are respectively connected to the operating body 1. Motor switch two 53 is set on handle two 12, and battery slot 54 is set in handle one 11.

[0070] Motor switch 2 53 is a normally open contact. When motor switch 2 53 is pressed, the normally open contact closes, motor 2 55 is energized, and the suction structure draws the rinsing fluid. When motor switch 2 53 is released, the contact opens, motor 2 55 is de-energized, and the suction structure stops drawing fluid. This design allows the suction structure to selectively draw rinsing fluid, which is convenient for suction operation, reduces the chance of tube blockage, and prevents rinsing fluid from remaining in the patient's abdominal cavity.

[0071] Example 6

[0072] refer to Figure 2Based on Example 1, the operating body 1 is configured to consist of an operating main body and a sliding cover 13. The operating main body is provided with a protruding stop, and the sliding cover 13 is provided with a sliding groove that matches the shape of the stop. The operating body 1 is opened by means of the stop and the sliding groove. This configuration facilitates the disinfection and cleaning of the suction structure inside the operating body 1 and the connection of the various pipes of the suction structure.

[0073] The above description of the embodiments is only for understanding the present invention. It should be noted that those skilled in the art can make several modifications to the present invention without departing from the principles of the invention, and these modifications will also fall within the protection scope of the claims of the present invention.

Claims

1. An intraperitoneal free cell flush collection device comprising, The operation body, handle, flushing pipe and suction pipe are characterized in that the flushing pipe is connected with the operation body, the suction pipe is arranged in the flushing pipe, the flushing pipe and the suction pipe are not communicated, the flushing pipe is externally connected with a flushing structure, the flushing structure is a pulse flushing structure, the suction pipe is connected with a suction structure in the operation body, the suction structure is a structure for sucking and collecting the flushing liquid, a guide structure capable of adjusting the suction angle is arranged in the suction pipe, the flushing structure comprises a connecting pipe I connected with a connecting port I, a water discharger capable of pulse water discharge, and a driving box connected with the water discharger. The first end side of the flushing pipe is provided with the connecting port I, and the connecting port I is connected with the flushing structure; the second end of the flushing pipe is provided with water outlet holes and a port part for the suction pipe to extend out. The first end of the suction pipe is connected with the suction structure, and the second end of the suction pipe extends out through the second end port of the flushing pipe, and the suction pipe and the flushing pipe are not communicated. The suction structure is arranged in a placing cavity in the operation body; the suction structure comprises a pump body arranged in the placing cavity, a second electric motor for driving suction, fan blades for sucking the flushing liquid, a connecting pipe II connected with the suction pipe, and a liquid discharge pipe connected with a liquid collecting bag; a second motor switch is arranged for setting a battery groove of a power supply battery of the second electric motor. The extending part of the suction pipe through the second end port part of the flushing pipe is arranged as a spiral segment, and suction holes are arranged on the spiral segment; the spiral segment of the suction pipe is circumscribed by a circle with a diameter smaller than the outer diameter of the suction pipe, and the length of the spiral pipe is 3-5 cm, and the spiral segment can be retracted into the suction pipe. The guide structure arranged in the suction pipe comprises a branch pipe connected with the suction pipe and a guide wire arranged along the inner wall of the suction pipe; the first end of the guide wire is connected with the spiral segment of the suction pipe, the second end of the guide wire extends out through the branch pipe and is provided with a pull ring; a liquid leakage prevention layer is arranged at the connection between the branch pipe and the suction pipe. The pull ring can retract the spiral segment of the suction pipe, and the guide wire can extend out of the spiral segment by being continuously wound forward.

2. The peritoneal lavage collection device of claim 1, wherein, The first end of the flushing pipe is threadedly connected with the operation body, and a leakage prevention rubber pad is arranged.

3. The peritoneal lavage collection device of claim 2, wherein, The first end of the connecting pipe I is connected with the connecting port I, and the second end is connected with the water discharger; the first end of the water discharger is provided with a water discharge port and a water inlet arranged on the first end side, and a one-way valve I and a one-way valve II are arranged at the water discharge port and the water inlet; a piston capable of sucking and discharging the flushing liquid is arranged in the water discharger.

4. The peritoneal lavage collection device of claim 3, wherein, The driving box comprises a first electric motor, a power supply device for supplying power to the electric motor, a motor switch I, a crank connected with the output end of the first electric motor and a rocker connected with the crank, and a fixing clamp for fixing the driving box; one end of the rocker is hingedly connected with the crank, and the other end is hingedly connected with the piston; the first electric motor and the power supply device are arranged in the driving box, and the motor switch I is arranged on the top of the driving box; the fixing clamp is arranged at the bottom of the driving box.

5. The peritoneal lavage collection device of claim 1, wherein, The second electric motor is arranged in a motor groove arranged in the operation handle, and the same through hole as the pump body is arranged, and the output end of the second electric motor extends into the pump body through the through hole; the fan blades are connected with the output end of the second electric motor; the connecting pipe II and the liquid discharge pipe are communicated with the pump body, and the connecting pipe II is opposite to the liquid pipe.

6. The peritoneal lavage collection device of claim 5, wherein, The handle is divided into handle one and handle two, and is connected with operation body respectively, motor switch two is arranged on handle two, and battery groove is arranged in handle one; motor switch two is normally open contact.

7. The device according to any one of claims 1 to 6, wherein The operation body is divided into operation main body and sliding cover, and the operation main body is provided with protruding stopper, and the sliding cover is provided with sliding groove matched with the shape of the stopper.

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