Self-priming cystic irrigator

Abstract

The present invention relates to the field of medical devices, and specifically discloses a self-priming cystic cavity irrigator, comprising a rinsing and suction head and a hand-held part, wherein the hand-held part comprises a pushing mechanism, a bottle body and a suction mechanism, wherein the bottle body is provided with a rinsing cavity and a suction cavity with a variable volume, wherein the side wall of the rinsing cavity is provided with a closable liquid inlet; wherein the rinsing and suction head is connected to the bottle body, wherein the rinsing and suction head comprises a suction channel connected to the suction cavity and a rinsing channel connected to the rinsing cavity, wherein the pushing mechanism changes the volume of the rinsing cavity by external force, wherein a rinsing valve is fixed in the rinsing channel for only allowing liquid to enter the rinsing channel from the rinsing cavity; wherein the suction mechanism changes the volume of the suction cavity by external force. The self-priming cystic cavity irrigator of the present invention can discharge rinsing liquid, food residues and keratinized substances in the deep of the cystic cavity, and promote the recovery of the affected part.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to the field of dental medical devices. Background Art

[0002] Common large cystic lesions of the jaw include odontogenic keratocysts, cystic ameloblastomas, and dentigerous cysts. Because they are initially asymptomatic, they are difficult to detect. Most cases are discovered only when the lesions have progressed to a certain extent or when X-rays are taken due to dental problems. These lesions often cause significant swelling of the mandible, severe resorption and deformation of the cortical bone, significant bone destruction, and tooth displacement and rotation, leading to occlusal disturbances. Currently, large cystic lesions of the jaw are often treated with fenestration and decompression combined with cyst plugging (denture-style).

[0003] Fenestration decompression surgery involves opening a window on the surface of a mandibular cystic lesion, partially opening the bone and cyst wall to drain the cystic fluid. After the cystic fluid flows out, a cystic cavity is formed in the affected area. A cyst plug is then made to keep the drainage port unobstructed, so that the pressure inside and outside the cystic cavity remains balanced. In order to maintain continuous drainage, the cyst plug also needs to be used for a long time after surgery. However, after the patient eats after surgery, food residues can still easily enter the cystic cavity through the gap between the cyst plug and the cystic cavity, leading to contamination, infection, and even oral mucosal diseases. Therefore, the patient needs to remove the cyst plug 2 to 3 times a day and flush the cystic cavity to flush out food residues and keratinized materials, keep the cystic cavity clean, and avoid infection.

[0004] Currently, it is generally recommended that patients use a syringe (without a sharp needle) or an ear bulb to flush the cyst cavity. However, due to the deep cyst cavity, residual solutions and food residues are easily difficult to drain out. Even if the patient lowers his head as much as possible, they cannot be completely drained out, resulting in residual solutions and food residues accumulating in the cavity. If the residual food residues, keratinized materials and solutions are not completely drained out, they will become a "breeding ground" for bacteria to grow, causing local infection, affecting the growth of epithelial cells on the surface of the cyst cavity, and ultimately delaying jaw bone growth, which is not conducive to the recovery of the affected area. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-priming cystic cavity irrigator for irrigating the cystic cavity, so as to discharge the irrigating fluid, food residues and keratinized materials deep in the cystic cavity and promote the recovery of the affected area.

[0006] To achieve the above-mentioned object, the technical solution of the present invention is as follows: a self-priming cystic cavity irrigator, comprising an irrigating and suction head and a handle, wherein the handle comprises a pushing mechanism, a bottle body and a suction mechanism, wherein the bottle body is provided with an irrigating chamber and a suction chamber with variable volumes, and a closable liquid inlet is provided on a side wall of the irrigating chamber;

[0007] The flushing suction head is connected to the bottle body, and the flushing suction head includes a suction channel connected to the suction chamber and a flushing channel connected to the flushing chamber. The pushing mechanism relies on external force to change the volume of the flushing chamber. A flushing valve is fixed in the flushing channel to only allow liquid to enter the flushing channel from the flushing chamber; the suction mechanism relies on external force to change the volume of the suction chamber.

[0008] The principles and beneficial effects of this solution are as follows:

[0009] (1) When the cyst cavity needs to be flushed, the flushing liquid is added into the flushing cavity from the liquid inlet, and then the flushing liquid is pushed out from the flushing channel using a pushing mechanism. Since the flushing suction head can extend into the deep of the cyst cavity, the flushing liquid can directly enter the deep of the cyst cavity and flow from the deep of the cyst cavity to the outside of the cyst cavity, making it easier for food residues and keratinized substances in the deep of the cyst cavity to be discharged.

[0010] (2) The suction mechanism can change the volume of the suction cavity. When the volume of the suction cavity increases, negative pressure can be formed in the suction cavity, and the irrigation and suction head can extend into the deep of the cyst cavity. The food residues and keratinized substances remaining in the deep of the cyst cavity are mixed with the residual irrigation fluid and are sucked into the suction cavity from the suction channel, and will no longer remain in the cyst cavity, thereby ensuring the cleanliness of the cyst cavity and promoting the recovery of the affected area.

[0011] (3) The flushing liquid flows out of the flushing channel to flush the cyst cavity while reducing the volume of the suction cavity. At this time, the gas in the suction cavity forms bubbles in the cyst cavity. The bubbles have a stirring effect on the liquid entering the cyst cavity, causing the food residue in the cyst cavity to fall from the side wall of the cyst cavity, thereby improving the flushing effect.

[0012] (4) The rinsing fluid after flushing contains food residues, keratinized matter, and pathogens. If the rinsing fluid enters the rinsing cavity again, it will contaminate the rinsing cavity. The rinsing cavity and the suction cavity of this solution are independent of each other. Compared with directly using the same cavity to store the cleaning fluid before and after flushing, in this solution, the rinsing fluid after flushing will not enter the rinsing cavity and contaminate the rinsing cavity, effectively ensuring the cleanliness of the rinsing cavity and the cleanliness of the rinsing fluid used to flush the cyst cavity, preventing pathogens from contaminating the cyst cavity again, and further promoting the recovery of the affected area.

[0013] Furthermore, a piston is slidably connected in the flushing cavity, and the pushing mechanism can push the piston to slide.

[0014] The beneficial effect of this solution is that during flushing, the piston can be made to slide along the flushing cavity by the pushing mechanism, so that the flushing liquid in the flushing cavity flows out from the flushing channel.

[0015] Furthermore, the pushing mechanism is a piston rod fixed to the piston, and one end of the piston rod away from the piston passes through the bottle body.

[0016] The beneficial effects of this solution are: pushing the piston rod can push the piston, and the pushing mechanism is simple.

[0017] Furthermore, the piston rod is located on a side of the piston away from the irrigation and suction head.

[0018] The beneficial effect of this solution is that when flushing the cyst cavity, the piston rod is pushed deep into the end of the bottle body away from the patient, and the piston rod will not contact the patient's face, so there is no obstacle to extending the flushing and suction head into the deep of the cyst cavity.

[0019] Furthermore, a water bag connected to the flushing channel is provided in the flushing chamber, the water bag is located between the piston and the flushing suction head, and the liquid inlet is connected to the water bag; the pushing mechanism includes a lever rotatably connected to the inner wall of the flushing chamber, a push rod that can push the lever to rotate, and at least one group of scissor-type telescopic components, the push rod passes through the bottle body away from the lever end and is slidably connected to the bottle body; the scissor-type telescopic component includes an inner rod and an outer rod, the inner rod is rotatably connected to the outer rod, the two outer rods of adjacent scissor-type telescopic components are rotatably connected, the two inner rods are rotatably connected, and the inner rod and outer rod ends of the scissor-type telescopic component closest to the piston are both rotatably connected to the piston, the inner rod of the scissor-type telescopic component farthest from the piston is rotatably connected to the inner wall of the flushing chamber, and the outer rod can be pushed by the lever away from the push rod end.

[0020] The beneficial effect of this solution is that during flushing, the patient can use their other hand to hold a mirror or manipulate facial muscles to observe the relative position of the flushing suction head and the cystic cavity, so as to align the flushing suction head with the cystic cavity. In the flushing device of this technical solution, when the patient holds the bottle, the thumb of that hand can push the push rod according to the different grip positions. The push rod rotates the lever, which moves the lever away from one end of the push rod and pushes the inner rod of the scissor-type telescopic assembly, causing the scissor-type telescopic assembly to extend and push the piston. The patient does not need to use the other hand to push the push rod. Therefore, the patient only needs one hand to operate it, which is more convenient and practical.

[0021] Furthermore, the flushing valve is composed of at least two elastic plates, the ends of the elastic plates are fixed on the side walls of the flushing channel, and one end of the elastic plate away from the side wall of the flushing channel is inclined toward the side away from the bottle body.

[0022] The beneficial effect of this solution is that when the flushing valve is closed, the elastic plates that comprise it adhere tightly to each other, completely sealing the flushing channel. During flushing, the flushing fluid within the flushing chamber enters the flushing channel, pushing the elastic plates to deform elastically, creating gaps between adjacent plates, allowing the flushing fluid to pass through. Compared to other valves, this solution offers a simpler structure and lowers costs.

[0023] Furthermore, a connecting portion is provided between the flushing and suction head and the bottle body, and the connecting portion detachably mounts the flushing and suction head on the bottle body.

[0024] The beneficial effect of this solution is that if the patient accidentally damages the irrigation and suction head or food residue enters the suction channel and cannot be cleaned out, the irrigation and suction head can be replaced and the irrigation device can be used again. Compared with replacing a new irrigation device, replacing the irrigation and suction head is less expensive.

[0025] Furthermore, an annular sleeve is connected to one end of the flushing and suction head away from the bottle body, and a plurality of baffles are fixed in the inner gap of the sleeve.

[0026] The beneficial effect of this solution is that the baffle blocks oversized food debris or keratinized matter, preventing it from entering the suction channel and clogging it. If oversized food debris or keratinized matter appears, the patient can flush the cyst cavity again to ensure that the oversized food debris or keratinized matter is flushed out.

[0027] Further, the flushing suction head is bent away from one end of the bottle body.

[0028] The beneficial effect of this solution is that the curved irrigation and suction head is more convenient for extending into the deep part of the cyst cavity.

[0029] Furthermore, the flushing and suction head is a hose, and a steel wire is fixed to the flushing and suction head.

[0030] The beneficial effect of this solution is that the steel wire can be bent and maintained in a bent state, so the irrigation and suction head in this solution can be bent at an angle that is adjusted by the patient as needed, so as to be more suitable for the affected area of ​​each patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front cross-sectional view of embodiment 1 of the present invention;

[0032] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 for Figure 1 Middle CC direction view;

[0034] Figure 4 for Figure 1 B-direction view;

[0035] Figure 5 This is a front cross-sectional view of the bottle body in Example 2 of the present invention;

[0036] Figure 6 2 is a cross-sectional view of the flushing and suction head in Example 2 of the present invention;

[0037] Figure 7 This is a front cross-sectional view of the bottle body in Example 3 of the present invention;

[0038] Figure 8This is a cross-sectional view of the flushing and suction head in Example 3 of the present invention. DETAILED DESCRIPTION

[0039] The following is further described in detail through specific implementation methods:

[0040] The figure marks in the drawings of the specification include: bottle body 1, suction chamber 11, first elastic sheet 13, liquid outlet 14, flushing chamber 15, liquid inlet 16, piston 2, piston rod 21, water bag 22, push rod 23, lever 24, outer rod 25, inner rod 26, connecting rod 27, second elastic sheet 28, mounting platform 3, adapter 31, flushing and suction head 4, suction channel 41, flushing channel 42, elastic plate 43, baffle 44, fixing rod 45, steel wire 5, sleeve 6, anti-blocking plate 61.

[0041] Example 1 is basically as shown in the attached Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown:

[0042] The self-priming cystic cavity flusher includes, from right to left, a handle, a connecting portion 31 and a flushing suction head 4. The handle includes a pushing mechanism, a bottle body 1 and a suction mechanism. The bottle body 1 is provided with a suction chamber 11 and a cavity below the suction chamber 11. A piston 2 is vertically arranged in the cavity. The piston 2 is laterally slidably connected to the cavity. The left side of the piston 2 is a flushing chamber 15. The side wall of the flushing chamber 15 is provided with a liquid inlet 16 and a liquid inlet plug. The outer diameter of the liquid inlet plug is larger than the diameter of the liquid inlet 16, so the liquid inlet plug is inserted into the liquid inlet 16 to close the liquid inlet 16. The pushing mechanism in this embodiment is a piston rod 21. The piston rod 21 is located on the right side of the piston 2, and the piston rod 21 is integrally formed with the piston 2. The right end of the piston rod 21 passes through the right wall of the bottle body 1, and the piston rod 21 is clearance-matched with the bottle body 1, so the piston rod slides relative to the bottle body 1. The side wall of the suction chamber 11 is provided with a liquid outlet 14 and a liquid outlet plug. The outer diameter of the liquid outlet plug is larger than the diameter of the liquid outlet 14, so the liquid outlet plug is not easy to fall off after sealing the liquid outlet 14. The suction mechanism can be a first elastic sheet 13. The top wall of the suction chamber 11 is provided with an opening. The first elastic sheet 13 is glued to the outer wall of the bottle body 1 and closes the opening. Squeezing and releasing the first elastic sheet 13 can reduce or increase the volume of the suction chamber 11. The suction mechanism can also be a piston structure similar to the piston 2 and piston rod 21 in the flushing chamber 15. Specifically, the suction mechanism in this embodiment adopts the first elastic sheet 13.

[0043] The flushing and suction head 4 is 15 cm long and includes a suction channel 41 connected to the suction chamber 11 and a flushing channel 42 connected to the flushing chamber 15. Specifically, the suction channel 41 can be located on the periphery of the flushing channel 42, or outside the flushing channel 42, and parallel to the flushing channel 42. In this embodiment, the suction channel 41 is located outside the flushing channel 42. The outer diameter of the flushing and suction head 4 of this embodiment is 1.5 cm, and the left end of the flushing and suction head 4 is bent downward to facilitate insertion into the deep part of the cyst cavity.

[0044] A flushing valve is provided in the flushing channel 42. The flushing valve in this embodiment is composed of twelve elastic plates 43. One end of the elastic plate 43 is glued to the side wall of the flushing channel 42, and the end of the elastic plate 43 away from the side wall of the flushing channel 42 is tilted to the left, and the adjacent side walls of the elastic plates 43 are tightly fitted. A circular baffle 44 is provided in the middle of the flushing channel 42, and the side wall of the baffle 44 is against the end of the elastic plate 43 away from the flushing channel 42. In the initial state, the elastic plate 43 cooperates with the baffle 44 to complete the closure of the flushing channel 42. An L-shaped fixing rod 45 is integrally formed on the right side wall of the baffle 44. The end of the fixing rod 45 away from the baffle 44 is glued to the side wall of the flushing channel 42, so that the baffle 44 will not move relative to the flushing channel 42. When the flushing liquid flows to the left in the flushing channel 42, the ends of the twelve elastic plates 43 away from the side wall of the flushing channel 42 swing to the left under the squeezing action of the flushing liquid, causing the elastic plate 13 to be elastically deformed to the left, and gaps for the flushing liquid to pass through appear between adjacent elastic plates 13 and between the elastic plate 13 and the baffle 44.

[0045] The left end of the flushing and suction head 4 is threadedly connected to a sleeve 6, which is annular. Nine anti-blocking plates 61 are integrally formed at the left end of the sleeve 6. The anti-blocking plates 61 in this embodiment are all triangular. The nine anti-blocking plates 61 are arranged at intervals and are evenly distributed along the circumference of the sleeve 6. The length direction of the nine anti-blocking plates 61 is perpendicular to the axial direction of the sleeve 6.

[0046] The adapter 31 is annular, and the left end of the bottle body 1 extends outward to form a cylindrical mounting platform 3. The mounting platform 3 is provided with a suction hole and a flushing hole that are connected to the suction chamber 11 and the flushing chamber 15, respectively. The adapter 31 is truncated in shape, with the outer diameter of the left end being smaller than the outer diameter of the right end, and a stepped hole is transversely provided in the adapter 31. The inner diameter of the stepped hole at the right end is larger than the inner diameter of the left end. The right end of the flushing and suction head 4 is connected to the left end of the mounting platform 3, the flushing channel 42 is connected to the flushing hole, and the suction channel 41 is connected to the suction hole. The adapter is sleeved on the outside of the connection between the two, thereby connecting the flushing and suction head 4 and the mounting platform 3 together. In addition, the adapter 31 in this embodiment can also be connected to the flushing and suction head 4 and the mounting platform 3 by a threaded connection.

[0047] The flushing process of the flusher of this embodiment is as follows:

[0048] Physiological saline or warm water is used as the flushing fluid. Before flushing, manually inject the flushing fluid into the flushing chamber 15 through the liquid inlet 16 and seal the liquid inlet 16. Then, holding the bottle body 1, extend the flushing suction head 4 deep into the cystic cavity. With one hand, push the piston rod 21. The piston 2 slides along the flushing chamber 15, pushing the flushing fluid in the flushing chamber 15 into the deep cystic cavity through the flushing channel 42 to flush the cystic cavity. Excess flushing fluid in the cystic cavity, mixed with food residue and keratinized materials, flows out of the cystic cavity. With the index finger of the other hand, press the first elastic plate 13, causing the gas in the suction chamber 11 to be discharged through the suction channel 41 into the deep cystic cavity, forming bubbles deep in the cystic cavity. The bubbles agitate the flushing fluid deep in the cystic cavity, improving the flushing effect.

[0049] After flushing is complete, the index finger releases first elastic plate 13, causing it to return to its original position. This creates negative pressure within the suction chamber 11 and suction channel 41, allowing any remaining food debris and keratinized material deep within the cystic cavity to be mixed with the flushing fluid and drawn into the suction chamber 11 through the suction channel 41. The flushing and suction head 4 is then manually removed, and the liquid outlet 14 is opened to allow the flushing fluid in the suction chamber 11 to flow out. The flushing and suction head 4 is then extended again into the deep cystic cavity, and the first elastic plate 13 is pressed and then released to aspirate any remaining flushing fluid until no more remains deep within the cystic cavity.

[0050] During this process, when piston rod 21 is pushed, the pressure within flushing chamber 15 and flushing channel 42 increases, causing flushing valve elastic plate 43 to deform leftward, creating gaps between adjacent elastic plates 43 and allowing flushing fluid to flow out. When piston rod 21 is no longer pushed, elastic plate 43 returns to its original position, resealing flushing channel 42 and preventing flushing fluid, food debris, and keratinized matter from deep within the cyst cavity from flowing back into flushing chamber 15 and contaminating it. When the first elastic sheet 13 is relaxed and the suction chamber 11 attracts the flushing liquid in the deep part of the cyst cavity, the flushing liquid and smaller food residues and keratinizations pass through the gaps between the adjacent anti-blocking plates 61 and are sucked into the suction channel 41. Food residues and keratinizations that are too large are blocked by the anti-blocking plates 61 and will not enter the suction channel 41 and block the suction channel 41. When there are still larger food residues and keratinizations in the deep part of the cyst cavity, repeat the above steps and use the flushing liquid to flush the deep part of the cyst cavity again, so that the larger food residues and keratinizations flow out of the cyst cavity along with the opening of the flushing liquid until all the larger food residues and keratinizations are flushed out of the cyst cavity and the flushing is completed.

[0051] Finally, manually insert the flushing suction head 4 into the clean water, press and then release the first elastic sheet 13, the clean water can flow through the suction channel 41 and enter the suction chamber 11, and finally the water in the suction chamber 11 is discharged from the liquid outlet 14, and the residual stains in the suction channel 41 and the suction chamber 11 are discharged from the liquid outlet 14 along with the clean water, and the stains attached to the outer wall of the flushing suction head 4 fall directly into the clean water. Repeat this several times to clean the suction chamber 11, the flushing suction head 4 and the suction channel 41.

[0052] Example 2 is basically as shown in the attached Figure 5 and Figure 6 As shown:

[0053] The difference from Example 1 is that in this embodiment, a water bladder 22 is provided on the left side of the piston 2. The inner cavity of the water bladder 22 forms the flushing cavity 15. A water inlet pipe is glued to the bottle body 1, and the water inlet pipe connects the water bladder 22 to the liquid inlet 16. The left end of the water bladder 22 is glued to the left end of the flushing cavity 15, and a through hole is provided on the left end of the water bladder 22 that is aligned with the flushing hole.

[0054] Secondly, the driving mechanism of this embodiment differs from that of Example 1. The driving mechanism of this embodiment is located within the flushing chamber 15 and includes a lever 24, a push rod 23, a connecting rod 27, and three sets of scissor-type telescopic assemblies. Lever 24 is located at the top of the flushing chamber 15. The middle portion of lever 24 is rotatably connected to the bottle body 1 via a pin. Push rod 23 is vertically arranged and located below lever 24. A groove is defined at the top end of push rod 23. The left end of lever 24 is located within the groove and abuts against the bottom of the groove. The lower end of push rod 23 extends through the bottle body 1. When push rod 23 is pushed upward, it pushes lever 24 to rotate clockwise. A guide block and a locating pin are glued to the sidewall of the chamber to the right of piston 2. Connecting rod 27 vertically penetrates the guide block and has a clearance fit with the guide block, allowing it to slide vertically relative to the guide block. A strip hole is axially defined in connecting rod 27, and the locating pin slides along the strip hole to prevent rotation of connecting rod 27. The connecting rod 27 is located on the lower side of the right end of the lever 24. A guide groove is axially provided at the bottom of the right end of the connecting rod 27. The top of the connecting rod 27 is located in the guide groove. When the lever 24 rotates clockwise, the connecting rod 27 is pushed downward, and the upper end of the connecting rod 27 slides along the guide groove.

[0055] The three scissor-type telescopic assemblies are arranged sequentially from left to right. Each scissor-type telescopic assembly includes an inner rod 26 and an outer rod 25. The three scissor-type telescopic assemblies are composed of the structure of the inner and outer brackets described in the application document with application number CN201210193132.1. The right end of the inner rod 26 of the rightmost scissor-type telescopic assembly is hinged to the bottom wall of the flushing chamber 15. The rightmost outer rod 25 also has a guide groove along the axial direction. When the connecting rod 27 is pushed downward, the lower end slides along the guide groove, pushing the right end of the outer rod 25 downward, causing the three scissor-type telescopic assemblies to extend, pushing the piston 2 to slide leftward, and the piston 2 squeezes the water bag 22 to the left, reducing the volume of the flushing chamber 15.

[0056] In this embodiment, the irrigation and suction head 4 is made of medical-grade PVC, and a steel wire 5 is embedded in the sidewall of the suction channel 41. Specifically, the steel wire 5 can be spiral or linear. In the case of a spiral, the wire 5 is positioned around the periphery of the irrigation channel. In this embodiment, a linear wire 5 is used, extending axially along the suction channel 41. The curvature angle of the left end of the irrigation and suction head 4 can be adjusted to suit the patient's needs.

[0057] The flusher of this embodiment differs from that of Example 1 only in the method of ejecting flushing liquid from flushing chamber 15. To eject flushing liquid, the thumb pushes push rod 23 into bottle body 1. Push rod 23 rotates lever 24, which in turn pushes the scissor-type telescopic assembly via connecting rod 27, thereby extending the scissor-type telescopic assembly and pushing piston 2. To use the flusher again, flushing liquid is injected into water bladder 22 through liquid inlet 16. The water bladder 22 expands, pushing piston 2 to the right, shortening the scissor-type telescopic assembly and finally resetting connecting rod 27, lever 24, and push rod 23.

[0058] Example 3 is basically as shown in the attached Figure 7 and attached Figure 8 As shown:

[0059] Compared with Example 1, in this embodiment, no piston 2 is provided in the flushing chamber 15 of the flusher, and the pushing mechanism is different from that in Example 1. The pushing mechanism of this embodiment is a second elastic piece 28. A flushing opening is provided at the bottom of the bottle body 1. The second elastic piece 28 is glued to the bottom of the bottle body 1 and closes the flushing opening. When flushing, pressing the second elastic piece 28 can make the flushing liquid in the flushing chamber 15 flow out from the flushing channel.

[0060] The flushing and suction head 4 in this embodiment is composed of two medical PVC hoses, one of which has an inner diameter of 0.5 cm and the other has an inner diameter of 1 cm. The hose with an inner diameter of 1 cm is placed on the outside of the other, that is, the hose with an inner diameter of 0.5 cm forms a flushing channel, and the space between the two hoses is the suction channel 41.

[0061] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various modifications and improvements without departing from the scope of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness of the implementation of the present invention or the practical application of the patent. The technologies, shapes, and structural components omitted from the present invention are all well-known technologies.

Claims

1. A self-priming cystic cavity flusher, characterized in that: It includes a flushing and suction head and a handle, wherein the handle includes a pushing mechanism, a bottle body and a suction mechanism, wherein a flushing cavity and a suction cavity with variable volumes are arranged in the bottle body, and a closable liquid inlet is arranged on the side wall of the flushing cavity; The flushing suction head is connected to the bottle body, and the flushing suction head includes a suction channel connected to the suction chamber and a flushing channel connected to the flushing chamber. The pushing mechanism changes the volume of the flushing chamber by external force, and a flushing valve is fixed in the flushing channel for only allowing liquid to enter the flushing channel from the flushing chamber; the suction mechanism changes the volume of the suction chamber by external force; A piston is slidably connected in the flushing cavity, and the pushing mechanism can push the piston to slide; The pushing mechanism is a piston rod fixed to the piston, and one end of the piston rod away from the piston penetrates the bottle body; The piston rod is located on a side of the piston away from the flushing suction head; A water bag connected to the flushing channel is provided in the flushing chamber, the water bag is located between the piston and the flushing suction head, and the liquid inlet is connected to the water bag; the pushing mechanism includes a lever rotatably connected to the inner wall of the flushing chamber, a push rod capable of pushing the lever to rotate, and at least one set of scissor-type telescopic components, the push rod passing through the bottle body at one end away from the lever and being slidably connected to the bottle body; the scissor-type telescopic components include an inner rod and an outer rod, the inner rod is rotatably connected to the outer rod, the two outer rods of adjacent scissor-type telescopic components are rotatably connected, the two inner rods are rotatably connected, and the inner rod and outer rod ends of the scissor-type telescopic component closest to the piston are both rotatably connected to the piston, the inner rod of the scissor-type telescopic component farthest from the piston is rotatably connected to the inner wall of the flushing chamber, and the outer rod can be pushed by the end of the lever away from the push rod; The flushing valve is composed of at least two elastic plates, the ends of the elastic plates are fixed on the side walls of the flushing channel, and the end of the elastic plate away from the side wall of the flushing channel is inclined toward the side away from the bottle body; The left end of the bottle body extends outward to form a cylindrical mounting platform, on which a suction hole and a flushing hole are arranged. The suction hole connects the suction channel with the suction cavity, and the flushing hole connects the flushing channel with the flushing cavity.

2. The self-priming cystic cavity flushing device according to claim 1, characterized in that: A transfer part is provided between the flushing and suction head and the bottle body, and the transfer part detachably mounts the flushing and suction head on the bottle body.

3. The self-priming cystic cavity flushing device according to claim 1, characterized in that: The end of the flushing and suction head away from the bottle body is connected with an annular sleeve, and a plurality of baffles are fixed in the inner gap of the sleeve.

4. The self-priming cystic cavity flushing device according to claim 2 or 3, characterized in that: The end of the flushing attraction head away from the bottle body is bent.

5. The self-priming cystic cavity flushing device according to claim 2 or 3, characterized in that: The flushing and suction head is a hose, and a steel wire is fixed to the flushing and suction head.

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