Anti-blocking flushing gun

Abstract

The utility model relates to the field of medical instruments, in particular to an anti-blocking flushing gun which comprises a handle, a flushing channel and a back-suction channel are arranged in the handle, liquid is ejected to a target tissue from the flushing channel, and the liquid at the target tissue is sucked back through negative pressure in the back-suction channel. A material sinking trap is further arranged in the handle, the material sinking trap divides the back-suction channel into an upper section and a lower section, the material sinking trap comprises a U-shaped passageway and a material sinking part, the two ends of the U-shaped passageway are communicated with the upper section and the lower section of the back-suction channel respectively, and the material sinking part is communicated with a bent part of the U-shaped passageway. When the solid residues and the flushing fluid are sucked back into the back-suction channel together, the solid residues and the flushing fluid can quickly reach the sediment trap, the solid residues automatically fall into the sediment part, and due to the fact that the directions of the back-suction channel of the sediment part are different, the solid residues in the sediment part can be gradually accumulated and cannot be flushed away.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an anti-blocking flushing gun. Background Art

[0002] During or after surgery, the surgical site is usually flushed. During or after flushing, the flushing fluid and residual human tissue or other objects in the surgical site need to be sucked back according to the situation. However, during the flushing process, tissues or other substances will be fused together, so when being sucked back, solid substances are likely to cause blockage in the suction channel. At present, there is no better way to deal with the blockage problem of the flushing gun. Utility Model Content

[0003] In order to solve the above-mentioned problems of the prior art, the utility model provides an anti-blocking flushing gun, including a handle, wherein a flushing channel and a back-suction channel are arranged in the handle, liquid is ejected from the flushing channel to the target tissue, and the liquid in the target tissue is sucked back by the negative pressure in the back-suction channel; a sinking trap is also arranged in the handle, wherein the sinking trap divides the back-suction channel into two sections, the sinking trap includes a U-shaped aisle and a sinking part, the two ends of the U-shaped aisle are respectively connected to the upper and lower sections of the back-suction channel, and the sinking part is connected to the bending part of the U-shaped aisle.

[0004] Preferably, the U-shaped passage is arranged horizontally, and the sinking part is arranged vertically.

[0005] Preferably, the sinking portion is trumpet-shaped, and the opening is connected to the U-shaped passage.

[0006] Preferably, an upper back-suction hose and a lower back-suction hose are provided in the back-suction channel, and one end of the upper back-suction hose and one end of the lower back-suction hose are respectively connected to two ends of the U-shaped passage.

[0007] Preferably, a back-suction adjustment mechanism is provided in the handle, the back-suction adjustment mechanism comprises a piston and a back-suction adjustment seat, the piston is provided with an air hole channel, the handle is provided with an exhaust hole connected to the outside, and the air hole channel is connected to the back-suction channel;

[0008] When the piston slides to different positions in the back-suction adjustment seat, part, all or no part of the exhaust hole is communicated with the air hole channel.

[0009] Preferably, the back-suction regulating mechanism comprises a back-suction reducing trigger and a back-suction adding trigger, the back-suction adding trigger is connected to the piston, and the back-suction reducing trigger is directly connected to the back-suction adding trigger by rolling through a back-suction gear;

[0010] When the back-suction reducing trigger is pressed, the back-suction increasing trigger drives the piston to move in the opposite direction relative to the back-suction reducing trigger, at which time the exhaust hole and the air hole channel are partially or completely connected, and the back-suction flow rate is reduced or no back-suction occurs;

[0011] When the back-suction plus trigger is pressed, the back-suction plus trigger drives the piston to move, at which time the exhaust hole and the air hole channel are partially connected or not connected, and the back-suction flow rate increases.

[0012] Preferably, the suction back trigger is integrally formed with the piston, and a rack is provided on the surface of the suction back trigger, and the rack is meshed with the suction back gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the anti-blocking flushing gun provided by the utility model.

[0014] Figure numerals: 1. handle; 2. flushing channel; 3. back-suction channel; 4. back-suction gear; 5. U-shaped passage; 6. back-suction minus trigger; 7. back-suction plus trigger; 8. sinking part; 9. air hole channel; 10. exhaust hole; 11. back-suction adjustment seat. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Reference Figure 1 As shown, the embodiment of the utility model provides an anti-blocking flushing gun, including a handle 1, wherein a flushing channel 2 and a back-suction channel 3 are arranged in the handle 1, and liquid is ejected from the flushing channel 2 to the target tissue, and the liquid in the target tissue is back-suctioned by the negative pressure in the back-suction channel 3. A sinking trap is also arranged in the handle 1, and the sinking trap divides the back-suction channel 3 into two sections, the upper and lower sections, and the sinking trap includes a U-shaped passage 5 and a sinking part 8, the two ends of the U-shaped passage 5 are respectively connected to the upper and lower sections of the back-suction channel 3, and the sinking part 8 is connected to the bending part of the U-shaped passage 5.

[0017] During the flushing process, human tissue or other substances will form solid residues. Under the action of negative pressure suction, the flushing liquid and solid residues enter the upper section of the re-suction channel 3, and then enter one end of the U-shaped aisle 5 and the sinking part 8 in turn, and then flow out from the other end of the U-shaped aisle 5 to the lower section of the re-suction channel 3, and finally flow out. When the flushing liquid carries the solid residues into the bending part of the U-shaped aisle 5, the solid residues will be flushed into the sinking part 8 due to the impact force. The sinking part 8 will collect the solid residues like a storage bag, and the flushing liquid will flow out normally from the other end of the U-shaped aisle 5. Since the sinking part 8 is in a different direction from the re-suction channel 3, the solid residues in the sinking part will gradually accumulate and cannot be flushed away.

[0018] In a further solution, the U-shaped passage 5 is arranged horizontally, and the sinking part 8 is arranged vertically. Since the handle 1 is generally held vertically, that is, the upper section of the re-suction channel 3 is above the lower section, the two ends of the U-shaped passage 5 also present an upper and lower positional relationship, and the sinking part is also vertically oriented. When the flushing liquid carries substances or human tissues through the sinking part of the U-shaped passage 5, it will automatically settle to the sinking part under the action of gravity, and the pure liquid will automatically flow out from the lower end of the U-shaped passage 5 to the lower section of the re-suction channel 3, and finally flow out. This can avoid objects from clogging the re-suction channel 3.

[0019] The sinking part 8 is trumpet-shaped, and its opening is connected to the U-shaped passage, so that solid residues can enter the sinking part 8 easily.

[0020] In a preferred embodiment, an upper suction hose and a lower suction hose are provided in the suction channel 3, and one end of the upper suction hose and one end of the lower suction hose are respectively connected to the two ends of the U-shaped passage 5. The suction channel 3 can be used directly or a suction hose can be provided therein, and suction is performed through the suction hose.

[0021] In a preferred embodiment, the handle 1 is provided with a back-suction adjustment mechanism, which includes a piston and a back-suction adjustment seat 11, the piston is provided with an air hole channel 9, the handle 1 is provided with an exhaust hole 10 connected to the outside, and the air hole channel 9 is connected to the back-suction channel; when the piston slides to different positions in the back-suction adjustment seat 11, part, all or no exhaust hole 10 is connected to the air hole channel 9.

[0022] During or after the operation, when the flushing gun needs to be used, first connect the back-suction channel and the flushing channel on the handle 1 to the negative pressure recovery box and the positive pressure liquid bag respectively. Under the pressure of the positive pressure liquid bag or driven by external pressurization or a peristaltic pump, the flushing liquid in the positive pressure liquid bag is pressed into the flushing channel, and the flushing liquid is ejected through the flushing channel at high pressure to the target tissue to clean the wound. The back-suction channel back-suctions the liquid and objects at the target tissue under the negative pressure of the negative pressure recovery box. Since the piston is provided with an air hole channel 9, and the air hole channel 9 is connected to the back-suction channel, under the action of negative pressure suction, suction negative pressure will be caused in both the back-suction channel and the air hole channel 9.

[0023] By moving the position of the piston, when the piston moves to the innermost part, the pore channel 9 is completely connected with the exhaust hole 10, that is, the pore channel 9 is connected with the outside world to the greatest extent, which will greatly reduce or even completely offset the negative pressure of the breathing duct at the end of the handle 1, making it impossible for the back-suction channel to normally or a small amount of back-suction of the flushing liquid. On the contrary, when the neutral piston moves to the outermost part, the pore channel 9 is not connected with the exhaust hole 10, and the suction negative pressure is completely applied to the back-suction channel, and normal back-suction or maximum flow back-suction is performed. Therefore, the closer the piston is to the inside of the handle 1, the smaller the back-suction amount is or even none, and vice versa.

[0024] In a preferred embodiment, the back-suction regulating mechanism includes a back-suction reducing trigger 6 and a back-suction increasing trigger 7, wherein the back-suction increasing trigger 7 is connected to the piston, and the back-suction reducing trigger 6 and the back-suction increasing trigger 7 are directly connected in a rolling manner through the back-suction gear 4; when the back-suction reducing trigger 6 is pressed, the back-suction increasing trigger 7 will drive the piston to move in the opposite direction relative to the back-suction reducing trigger 6, at which time the exhaust hole 10 and the air hole channel 9 are partially connected or fully connected, and the back-suction flow rate is reduced or no back-suction occurs; when the back-suction increasing trigger 7 is pressed, the back-suction increasing trigger 7 will drive the piston to move, at which time the exhaust hole 10 and the air hole channel 9 are partially connected or not connected, and the back-suction flow rate is increased.

[0025] When in use, the handle 1 is held, and the index finger and the middle finger are pressed on the suction plus trigger 7 and the suction minus trigger 6 respectively. When the index finger exerts force to press the suction plus trigger 7, under the action of the suction gear 4, the suction minus trigger 6 will move in the opposite direction to bring the piston out, at which time the connection between the pore channel 9 and the exhaust hole 10 will decrease, thereby increasing the suction flow rate. Conversely, when the middle finger exerts force to press the suction minus trigger 6, under the action of the suction gear 4, the suction plus trigger 7 will move in the opposite direction to bring the piston out, at which time the connection between the pore channel 9 and the exhaust hole 10 will increase, thereby reducing the suction flow rate.

[0026] The suction trigger 7 is integrally formed with the piston, and a rack is provided on the surface of the suction trigger 7, which meshes with the suction gear 4. The coordination of the rack and gear can better control the movement of the trigger, realize stepless speed change, prevent excessive adjustment, and improve the adjustment accuracy of the suction flow. In addition, during the adjustment of the trigger, whether it is adjusted up or down, two fingers are involved in the force at the same time, which can greatly improve the stability and accuracy of the flow adjustment.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inside", "outside", "inner side", "outer side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Among them, "inside" refers to an internal or enclosed area or space. "Periphery" refers to the area surrounding a specific component or a specific area.

[0028] In the description of the embodiments of the present utility model, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "assemble" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-blocking flushing gun, comprising a handle, wherein a flushing channel and a back-suction channel are provided in the handle, liquid is ejected from the flushing channel to a target tissue, and the liquid in the target tissue is back-suctioned by the negative pressure in the back-suction channel; characterized in that: A sinking trap is also provided in the handle, which divides the re-suction channel into two sections, the sinking trap comprises a U-shaped passage and a sinking portion, the two ends of the U-shaped passage are respectively connected to the upper and lower sections of the re-suction channel, and the sinking portion is connected to the bending portion of the U-shaped passage.

2. The anti-blocking flushing gun according to claim 1, characterized in that: The U-shaped passage is arranged horizontally, and the sinking part is arranged vertically.

3. The anti-blocking flushing gun according to claim 1, characterized in that: The sinking part is trumpet-shaped, and the opening is communicated with the U-shaped passage.

4. The anti-blocking flushing gun according to claim 1, characterized in that: An upper back-suction hose and a lower back-suction hose are arranged in the back-suction channel, and one end of the upper back-suction hose and one end of the lower back-suction hose are respectively communicated with two ends of the U-shaped passage.

5. The anti-blocking flushing gun according to claim 1, characterized in that: A back-suction adjustment mechanism is provided in the handle, and the back-suction adjustment mechanism includes a piston and a back-suction adjustment seat. The piston is provided with an air hole channel, and the handle is provided with an exhaust hole connected to the outside, and the air hole channel is connected to the back-suction channel; When the piston slides to different positions in the back-suction adjustment seat, part, all or no part of the exhaust hole is communicated with the air hole channel.

6. The anti-blocking flushing gun according to claim 5, characterized in that: The back-suction regulating mechanism comprises a back-suction reducing trigger and a back-suction increasing trigger, the back-suction increasing trigger is connected to the piston, and the back-suction reducing trigger and the back-suction increasing trigger are directly connected in rolling manner through a back-suction gear; When the back-suction reducing trigger is pressed, the back-suction increasing trigger drives the piston to move in the opposite direction relative to the back-suction reducing trigger, at which time the exhaust hole and the air hole channel are partially or completely connected, and the back-suction flow rate is reduced or no back-suction occurs; When the back-suction plus trigger is pressed, the back-suction plus trigger drives the piston to move, at which time the exhaust hole and the air hole channel are partially connected or not connected, and the back-suction flow rate increases.

7. The anti-blocking flushing gun according to claim 5, characterized in that: The back-suction trigger is integrally formed with the piston, and a rack is provided on the surface of the back-suction trigger, and the rack is meshed with the back-suction gear.

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