CN114848949A

CN114848949A - Handle gun

Info

Publication number: CN114848949A
Application number: CN202210394961.XA
Authority: CN
Inventors: 杜全立; 邵先烘; 严波
Original assignee: Wuhan Golden Jirui Medical Technology Development Co ltd
Current assignee: Wuhan Golden Jirui Medical Technology Development Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-08-05
Anticipated expiration: 2042-04-15
Also published as: CN114848949B

Abstract

The invention discloses a handle gun, which belongs to the field of medical instruments and comprises a shell, wherein at least one pipeline is correspondingly arranged in the shell, at least one suction pipeline is arranged in the shell, the corresponding arrangement of an anti-blocking control piece in the suction pipeline is utilized, the on-off control and the flow regulation of the suction pipeline can be realized, and large residues in the suction pipeline can be contained and filtered in a first pipe cavity of the anti-blocking control piece, so that the blockage of the suction pipeline is avoided. The handle gun disclosed by the invention is compact in structure and convenient and fast to control, can meet the functional requirements of flushing and/or suction, and can be used conveniently, the flushing and suction functions of the handle gun are controlled by a pure machine, no additional electric control equipment is required to be introduced, the interference on related medical equipment in an operating room is avoided while the control process is simplified, the reliable operation is ensured, the use comfort and the convenience of a user are improved, and the handle gun has better practical value and application prospect.

Description

Handle gun

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a handle gun.

Background

In the medical field, the surgical irrigation apparatus is widely applied and plays an important role in the process of performing surgery on a patient by a doctor. In the actual use process, because the actual conditions of different operations are different, the irrigation devices adopted in different operations have certain differences, which also causes the existing surgical irrigation instruments to be various and have different functions.

Meanwhile, in the process of most of operations, doctors often need to wash and attract the operation position at the same time to clean the wound surface of the operation position, and extract residues, minced meat, blood and the like generated in the operation process from the operation position, so as to ensure the smooth operation of the operation process.

At present, the function of the common surgical irrigation instrument is often single, the simultaneous control of the irrigation process and the suction process can not be realized mostly, the instrument needs to be frequently replaced to assist the operation in the surgical process of a doctor, the efficiency of the operation is low, and even the normal operation of the surgery of the doctor can be influenced. Although a small amount of instruments capable of simultaneously completing the irrigation and suction processes exist in the prior art, the instruments are often inconvenient to use, the liquid flow in the irrigation pipeline and the suction pipeline cannot be reliably controlled, and the suction pipeline is easily blocked due to the fact that solid residues are sucked in the use process of the instruments, so that the stability of the instruments in the use process is poor, and the normal operation of an operation is influenced. In addition, the existing surgical irrigation apparatus often adopts an electric control mode to control the on-off of the pipeline, which not only needs to introduce additional electronic equipment in an operating room, but also can generate electromagnetic interference to other surgical equipment in the operating room, and influence the normal use of other equipment.

Disclosure of Invention

Aiming at one or more of the defects or the improvement requirements in the prior art, the invention provides a handle gun which can meet the suction function during operation, realize effective blockage prevention of a suction pipeline and improve the use convenience and reliability of instruments.

To achieve the above object, the present invention provides a handle gun comprising a housing;

at least one pipeline is arranged in the shell;

the at least one pipeline comprises a suction pipeline for sucking water liquid in the working area; an anti-blocking control part is arranged in the suction pipeline and comprises a first pipe cavity and a second pipe cavity which are arranged side by side;

one end of the first tube cavity is closed, the other end of the first tube cavity is connected to the suction pipeline, and the first tube cavity is communicated with the second tube cavity through a through hole formed in the side wall surface; one end of the second tube cavity is connected to the suction pipeline, and the other end of the second tube cavity is provided with an adjusting mechanism for adjusting and controlling the flow in the two tube cavities.

As a further improvement of the present invention, the at least one pipeline further comprises a flushing pipeline for flushing the working area with water;

the flushing pipeline comprises a control pipe and a control assembly arranged aiming at the control pipe; the control assembly is arranged on one side of the control tube and used for clamping the control tube and controlling the flushing pipeline to be switched on and off.

As a further improvement of the invention, the control assembly comprises a fixed bottom plate, a movable plate and pipeline clamping plates which are hinged at one end of the movable plate in pairs;

the fixed bottom plate is fixed in the shell, and guide blocks are arranged on the surface of the fixed bottom plate in pairs, so that the movable plate can be displaced between the two guide blocks in a reciprocating manner to be close to or far away from the control pipe; the two pipeline clamping plates are hinged to two sides of one end, close to the control pipe, of the movable plate and are used for clamping the control pipe when the hinged parts of the two pipeline clamping plates enter between the two guide blocks;

correspondingly, the control pipe is of an arc or annular structure arranged on the fixed bottom plate, and the two pipeline clamping plates are respectively arranged on two circumferential sides of the periphery of the control pipe.

As a further improvement of the invention, the inner sides of the two guide blocks close to one end of the control tube are wedge-shaped surfaces, so that a bell mouth structure is formed between the two guide blocks.

As a further improvement of the invention, the control assembly further comprises a positioning plate and a positioning pin;

the positioning plate is arranged on the fixed bottom plate, and a first guide groove and a second guide groove are formed in the surface of the positioning plate; the two guide grooves are respectively arc-shaped grooves and are connected end to form a ring groove; the groove depth of one end of the first guide groove is greater than that of the second guide groove connected with the first guide groove, and a first step is formed at the connecting part; the groove depth of the other end of the first guide groove is smaller than that of the second guide groove connected with the first guide groove, and a second step is formed at the connecting part;

one end of the positioning pin is rotatably connected to the movable plate, and the other end of the positioning pin is bent and embedded into the annular groove and can move in the annular groove by the end part when the movable plate moves.

As a further improvement of the invention, a locking block is formed in the area surrounded by the annular groove, and a locking groove is formed on one side of the locking block close to the control pipe, so that the embedded end part of the positioning pin can be tightly abutted against the inner wall surface of the locking groove when the flushing pipeline is in a communicated state, and the flushing pipeline is locked in the communicated state.

As a further improvement of the present invention, a first elastic member is further disposed in the control assembly, and one end of the first elastic member is fixed in the housing, and the other end of the first elastic member is connected to the movable plate, so as to lock the position of the positioning pin when the movable plate moves in place.

As a further improvement of the present invention, a control portion protruding out of the surface of the housing is provided in correspondence with the control assembly and the adjustment mechanism;

the two control parts are arranged on the same side of the shell holding part and are respectively used for mechanical control of the control assembly and the adjusting mechanism.

As a further improvement of the present invention, the control part of the control assembly is a first trigger;

one end of the first trigger is hinged in the shell, the other end of the first trigger extends out of the shell, and the middle of the first trigger is rotatably connected with the movable plate.

As a further improvement of the present invention, the adjusting mechanism is a piston, one end of which is in sliding and sealing fit with the second lumen, and the other end of which is connected with the adjusting mechanism, so that the piston can be driven by the adjusting mechanism to slide along the second lumen in an axial reciprocating manner, thereby changing the flow rate in the two lumens.

As a further improvement of the present invention, the control part of the adjusting mechanism is a second trigger;

one end of the second trigger is rotatably connected in the shell, a supporting rod is arranged at the end part of the second trigger, which is rotatably connected with the second trigger, and the supporting rod is rotatably connected with one end of the piston, which deviates from the second tube cavity.

As a further improvement of the invention, a second elastic member is arranged corresponding to the piston, one end of the second elastic member is limited in the shell, the other end of the second elastic member acts on the end part of the piston, and the second elastic member can reset the piston when the second trigger releases the action on the piston.

As a further development of the invention, the first trigger is located above the second trigger.

As a further improvement of the invention, a double-cavity tube is also arranged on the shell;

the inner tube and the outer tube of the double-cavity tube are respectively hard tubes; or

The inner tube of the double-cavity tube is a hard tube, the outer tube is a soft tube, and the inner tube supports and shapes the double-cavity tube.

As a further improvement of the invention, a pipeline connecting piece is also arranged on the shell;

one end of the pipeline connecting piece is communicated with the corresponding pipeline in the shell, and the other end of the pipeline connecting piece is communicated with an external pipeline outside the shell.

The above-described improved technical features may be combined with each other as long as they do not conflict with each other.

Generally, compared with the prior art, the technical scheme conceived by the invention has the following beneficial effects:

(1) the handle gun comprises a shell, wherein at least one pipeline is correspondingly arranged in the shell, at least one suction pipeline is arranged in the pipeline, and the corresponding arrangement of an anti-blocking control piece in the suction pipeline is utilized, so that the on-off control and the flow regulation of the suction pipeline can be realized, and large residues in the suction pipeline can be contained and filtered in a first pipe cavity of the anti-blocking control piece, so that the blockage of the suction pipeline is avoided, the anti-blocking requirement in the suction operation process of the suction pipeline is realized, the use reliability of the handle gun and the suction pipeline is improved, the additional action process and energy consumption in the operation of a doctor are reduced, and the efficiency and the precision of the operation are improved.

(2) According to the handle gun, the flushing pipeline independent of the suction pipeline is arranged in the shell, so that the handle gun can synchronously realize the flushing function while realizing the suction function, the functionality of the handle gun is greatly improved, frequent replacement of instruments in the use process of a user is avoided, the use process is simplified, and the convenience in use of the instruments is further improved.

(3) According to the handle gun, the control assembly of the flushing pipeline is preferably arranged, the arrangement form of the control pipe is correspondingly arranged, and the combined arrangement of the structures such as the fixed bottom plate, the movable plate, the positioning pin, the positioning plate and the like in the control assembly is utilized, so that the on-off and the flow of the control pipe can be accurately controlled, the use of the handle gun under different flushing requirements is further met, and the flow of the flushing pipeline is freely adjusted; in addition, through the structure that corresponds the setting alignment board, utilize the combination of structural style such as guide slot, step, locking hole, first elastic component, can realize the reliable centre gripping of control tube to ensure that the control tube can lock in the intercommunication or block the state, avoid the long-time application of force control of user when using, reduce the consumption of user's physical power.

(4) According to the handle gun, the anti-blocking control piece in the suction pipeline is preferably arranged, and the anti-blocking operation of the suction pipeline during suction operation can be reliably realized by utilizing the corresponding arrangement of the anti-blocking control piece, the piston, the second trigger, the second elastic piece and the like, so that large residues can be effectively stored and deposited in the first pipe cavity of the anti-blocking control piece, the smoothness of the suction pipeline is ensured, and the use reliability of the device is improved.

(5) According to the handle gun, the combination arrangement of the first trigger, the second trigger and the corresponding elastic pieces is preferably arranged, so that the flushing pipeline and the suction pipeline can be reliably kept in the locked state when the handle gun is not operated, a user can more easily form a conditioned reflex type reaction, the user does not need to spend much effort on closing the instrument, and the use process of the handle gun is further simplified.

(6) The handle gun disclosed by the invention is compact in structure and convenient and fast to control, can simultaneously meet the functional requirements of flushing and suction, realizes the use effect of simultaneous flushing and suction, is controlled by pure mechanical control, does not need to introduce additional electric control equipment, simplifies the control process, avoids the interference on related medical equipment in an operating room, ensures the reliable operation of the operation, improves the use comfort and the convenience of a user, and has better practical value and application prospect.

Drawings

FIG. 1 is a schematic view of the overall structure of a handle gun in an embodiment of the present invention;

FIG. 2 is a schematic illustration of an exploded view of a handle gun in an embodiment of the present invention;

FIG. 3 is an exploded view of the handle gun with the first line locked in accordance with an embodiment of the present invention;

FIG. 4 is an exploded view of the handle gun of an embodiment of the present invention with the first lines in communication;

FIGS. 5 and 6 are schematic views showing the structure of a first pipeline of the handle gun according to the embodiment of the present invention;

FIG. 7 is a schematic diagram of a positioning plate for the first pipeline according to an embodiment of the present invention;

FIGS. 8-11 are process diagrams of the control assembly of the first pipeline during operation according to an embodiment of the present invention;

FIGS. 12 and 13 are schematic views showing the second pipe line in a locked state according to the embodiment of the present invention;

FIGS. 14 and 15 are schematic views showing the second line in an open state according to the embodiment of the present invention;

a schematic structural composition diagram;

throughout the drawings, like reference numerals designate like features, and in particular:

1. a housing; 101. a first housing; 102. a second housing; 103. a double lumen threaded cap; 104. a handle sleeve; 105. gluing a rubber sleeve;

2. a first pipeline; 201. a first connecting pipe; 202. a control tube; 203. a second connecting pipe; 204. a pipe connection; 205. fixing the bottom plate; 206. a movable plate; 207. positioning a plate; 2071. a first guide groove; 2072. a second guide groove; 2073. a first step; 2074. a second step; 2075. a locking block; 208. positioning pins; 209. a first elastic member; 210. a first trigger; 211. a pipeline clamping plate;

3. a second pipeline; 301. a third connecting pipe; 302. an anti-clogging control member; 3021. a first lumen; 3022. a second lumen; 303. a fourth connecting pipe; 304. a piston; 305. a second elastic member; 306. a second trigger;

4. a double lumen tube; 5. a first external pipe; 6. the second external pipeline.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example (b):

the hand gun of the preferred embodiment of the present invention, which is mainly used in the medical procedure for irrigation and/or suction of the wound surface, includes a housing 1 in the form of a "pistol" for the convenience of holding and controlling the use of the hand gun by a user. Meanwhile, an accommodating chamber is formed in the housing 1, and at least one pipeline is arranged in the accommodating chamber and used for conveying water liquid. It is understood that the "water liquid transportation" may be the pumping of water liquid from the operation area, or the transportation of external water liquid to the operation area, which may be preferable according to the actual situation.

In a preferred embodiment, the pipe in the housing 1 comprises a suction pipe for sucking and discharging water in the operation area, and the handle gun at least has a suction function and can be called as a suction handle gun. Of course, when there is only one pipe, the pipe can also satisfy other functional requirements, for example, the pipe can be a "flushing pipe" to satisfy the flushing requirement.

In another embodiment, the housing 1 has at least two pipelines, each of which is independent of the other and can perform corresponding operations and uses. Moreover, it is understood that, when the plurality of pipelines are provided, the plurality of pipelines may have the same or different functions, for example, two suction pipelines may be provided at the same time to meet suction requirements under different conditions, or one suction pipeline and one flushing pipeline may be provided at the same time to respectively meet suction requirements and flushing requirements, which may be optimized according to actual needs, and thus, the detailed description thereof is omitted.

In the preferred embodiment as shown in fig. 1 to 15, two pipes, i.e., a first pipe 2 and a second pipe 3, are provided in the housing 1, and will be described in detail later by way of example.

In particular, the housing 1 of the preferred embodiment comprises a first shell 101 and a second shell 102, both preferably made of medical grade plastic material, safe and harmless and having a low weight, ensuring a long-term grip by the user without significant hand fatigue. It is understood that the two housings are respectively formed with a containing cavity, and the two housings are spliced to form a complete cavity for containing the two pipelines, and the two pipelines are isolated from the external environment of the housing 1.

Meanwhile, a double-cavity tube 4 is preferably arranged at the muzzle part of the shell 1 and is used for being correspondingly communicated with one end of the two pipelines, so that when the handle gun is actually used, the end part of the double-cavity tube 4 directly acts on an operation area (namely, an intraoperative part needing flushing and suction); correspondingly, the bottom of the 'grab handle' of the shell 1 is correspondingly provided with an external pipeline which is used for being communicated with the other ends of the two pipelines so as to pump the flushing liquid and suck the suction liquid. Accordingly, a double lumen tube screw cap 103 is provided at the end of the housing 1, as shown in fig. 1, for securing the double lumen tube 4 in two-line communication at the "muzzle" position of the housing 1, ensuring reliable placement of the double lumen tube 4. Of course, it will be appreciated that locking of the ends of the first and

second housings

101, 102 may also be accomplished by providing a dual lumen threaded cap 103 such that the two housings secure the ends of the dual lumen tube 4.

In the case of the double lumen tube 4 in the exemplary embodiment, two separate lumens are formed therein for carrying out the respective fluid conducting processes. In the preferred embodiment, the two lumens of the double lumen tube 4 are respectively a flushing lumen and a suction lumen, and independently complete the conveying process of the flushing water liquid of the operation opening and the suction process of the water liquid after flushing, the tissue liquid in operation and the like.

Further, as for the first pipeline 2 in the preferred embodiment, it is preferably a flushing pipeline, and includes a first connecting pipe 201, a control pipe 202 and a second connecting pipe 203 which are communicated in sequence. Wherein, one end of the first connecting pipe 201 is communicated with one end of the control pipe 202, and the other end is communicated with the flushing lumen in the double-lumen pipe 4; correspondingly, one end of the second connecting tube 203 is communicated with one end of the control tube 202, and the other end is communicated with the first external connecting tube 5, and the water liquid for irrigation is introduced to the wound surface in the operation through the first external connecting tube 5.

In order to realize on-off control and flow control of the first pipeline 2, a control assembly is arranged in the housing 1 corresponding to the control pipe 202.

More specifically, the control assembly in the preferred embodiment is shown in FIGS. 8-11 and includes a fixed base plate 205, a movable plate 206, and a pair of tube clamps 211 disposed on the movable plate 206 on a side thereof adjacent to the control tube 202. In order to achieve the displacement guiding and limiting of the movable plate 206, guide blocks are provided in pairs on the fixed base plate 205, as shown in fig. 2, so that the movable plate 206 can be just inserted between the two guide blocks and perform reciprocating displacement therebetween, and further approach or depart from the control pipe 202 provided at one side of the end of the movable plate 206. In the preferred embodiment, the opposing side wall surfaces of the guide blocks are arranged in parallel, with the spacing between them being just equal to the width of the movable plate 206. Meanwhile, the inner sides of the end parts of the two guide blocks close to the control tube 202 are respectively provided with a wedge-shaped structure, the two wedge-shaped structures are symmetrically arranged, and the end parts of the two guide blocks form a horn mouth shape. In addition, the pipe clamp 211 is hinged at one end thereof to an end of the movable plate 206 and is rotatable relative to the end.

Accordingly, in order to cooperate with the two pipe clamps 211, the control pipe 202 in the preferred embodiment is bent in a ring shape as shown in fig. 9, and its end portion communicating with the two connection pipes is locked to the end portion of the fixed base plate 205 by a locking piece, as shown in fig. 8 to 11. At this time, the two pipe clamps 211 are respectively provided on both sides of the outer periphery of the ring-shaped control pipe 202.

It can be understood that when the connecting portion of the pipe clamp 211 is opposite to the corresponding wedge surface, the two pipe clamps 211 can rotate to the position of being attached to the corresponding wedge surface, and at this time, the opening angle between the two pipe clamps 211 is the largest, and the control pipe 202 can be opened to form a ring structure. When the movable plate 206 moves away from the control tube 202 between the guide blocks, the tube clamps 211 are pulled into between the guide blocks. At this time, the two pipe clamps 211 are switched from the "open state" to the "closed state", the space between the two is greatly reduced, one end of the annular control tube 202 is clamped by the two pipe clamps 211, the "annular" is switched to the "flat shape", the middle part of the control tube 202 is pressed and bent, and the communication of the control tube 202 is blocked.

Of course, it can also be understood that, when the movable plate 206 moves close to the control tube 202, the hinged end portions of the two tube clamps 211 can move from the opposite wall surfaces of the two guide blocks to the positions corresponding to the two wedge surfaces, at this time, the expandable angle between the two tube clamps 211 becomes larger, and if a certain amount of hydraulic liquid is introduced into the first tube 2 at this time, the control tube 202 can be restored to be annular, so as to achieve the communication of the first tube 2.

Preferably, in order to ensure the reliability of clamping and recovering the control tube 202, the material is preferably selected, and particularly preferably is a medical tube with high elasticity, such as a tubular structure made of materials such as polyvinyl chloride (PVC), Polyethylene (PE), polypropylene (PP), Polystyrene (PS), Polycarbonate (PC), ABS, polyurethane, polyamide, thermoplastic elastomer, polysulfone, and polyether ether ketone.

Obviously, it can also be understood that, through the arrangement of the control assembly, not only the on-off control of the first pipeline 2 can be realized, but also the flow rate and the water pressure in the first pipeline 2 can be correspondingly adjusted. Because the motion of fly leaf 206, can adjust the angle that presss from both sides between two pipeline splint 211 in succession for it can be adjusted in succession to the centre gripping angle of control tube 202, so, can correspond centre gripping control tube 202 and produce deformation in its ring line middle part, and then the flow size in the adjustment first pipeline 2 and the water pressure size of washing satisfy different user demands.

Further, a locking mechanism is provided in the control assembly for the movable plate 206 for locking the communication state and the disconnection state of the first pipeline 2. In a preferred embodiment, the locking mechanism includes a positioning plate 207, a positioning pin 208 and a first elastic member 209, wherein the positioning plate 207 is provided with a fixed cover on two guide blocks as shown in fig. 8 such that the movable plate 206 can reciprocate between the fixed base plate 205 and the positioning plate 207. Meanwhile, a guide groove is formed in the surface of the positioning plate 207, and one end of the positioning pin 208 is a free end, is bent and embedded in the guide groove, and can move in the guide groove; accordingly, the other end of the positioning pin 208 is a connecting end, which is movably connected (rotatably connected) to the movable plate 206, so that the free end of the positioning pin 208 can slide in the guiding groove when the movable plate 206 moves correspondingly.

Specifically, the guide grooves of the positioning plate 207 are shown in fig. 7, which include a first guide groove 2071 and a second guide groove 2072 that are connected end to end and form a "heart-shaped" circular groove, and then when the movable plate 206 moves close to the control tube 202 (the control tube 202 is unlocked), one end of the positioning pin 208 can move in the second guide groove 2072 from the end thereof facing away from the control tube 202 to the end close to the control tube 202; accordingly, when the movable plate 206 needs to move away from the control tube 202 (the control tube 202 is clamped by the two tube clamps 211), one end of the positioning pin 208 can move in the first guide slot 2071 from the end close to the control tube 202 to the end away from the control tube 202.

In order to achieve stability of the movement of the free end of the dowel pin 208, steps having a certain height difference, i.e., a first step 2073 and a second step 2074, are formed at the end connection positions of the two guide grooves. In practice, the first step 2073 is formed by the height of the bottom of the end groove of the second slot 2072 being higher than that of the first slot 2071 (which can also be understood as "the depth of the end of the first slot 2071 is greater than that of the end of the second slot 2072"), so that the end of the pin 208 can only go from the end of the second slot 2072 to the end of the first slot 2071 after passing over the first step 2073 without performing a displacement movement in reverse. Meanwhile, the second step 2074 is formed at the side of the positioning plate 207 facing away from the control pipe 202 and is formed because the height of the bottom of the first guide groove 2071 at the side is higher than that of the second guide groove 2072, so that it is ensured that the end of the positioning pin 208 moves only in the second guide groove 2072 and does not move from the end of the second guide groove 2072 into the first guide groove 2071 when the movable plate 206 moves close to the control pipe 202, thereby ensuring the accuracy of the movement of the positioning pin 208.

Taking the view angle in fig. 7 as an example, the positioning pin 208 can be made to perform a cyclic motion in a "counterclockwise" direction on the positioning plate 207 by the above arrangement. Specifically, when the control tube 202 is switched from the disconnected state to the open state, the movable plate 206 moves from the end away from the control tube 202 to close to the control tube 202, and the free end of the positioning pin 208 moves in the second slot 2072, passes over the first step 2073 and enters the end of the first slot 2071, and at this time, the control tube 202 is in the fully connected state; on the contrary, when the control pipe 202 needs to be switched from the open state to the open state (or dynamically adjust the flow rate of the pipeline), the control flap 206 moves in the reverse direction, and the free end of the positioning pin 208 moves in the first guide slot 2071 until it passes through the second step 2074 and enters the end of the second guide slot 2072, thereby completing the open control of the control pipe 202.

However, it is understood that the positions of the two guide slots can be completely exchanged according to the actual setting requirement, and the positions of the two steps can be correspondingly exchanged, so that the positioning pin 208 can perform a cyclic movement on the positioning plate 207 in a "clockwise" direction.

In addition, it can be seen that, by the arrangement of the two guide grooves, a "heart-shaped" locking block 2075 can be formed on the positioning plate 207, the groove of one end of the locking block 2075 exactly corresponds to the formation position of the first step 2073, and the corner position of the other end corresponds to the formation position of the second step 2074. With the above arrangement, the free end of the positioning pin 208 can be restrained at the end of the first guide slot 2071, abutting in the groove at one end of the locking block 2075.

Further, a first elastic member 209 is disposed at an end of the movable plate 206 opposite to the pipe clamp 211, one end of the first elastic member 209 is fixedly disposed, and the other end of the first elastic member 209 is connected to the movable plate 206, so that when the movable plate 206 moves close to the control pipe 202, the elastic force of the first elastic member 209 needs to be overcome, and the first elastic member 209 needs to be stretched. In this way, when the free end of the positioning pin 208 passes over the first step 2073 and reaches the end groove of the locking block 2075, the first elastic member 209 can be pulled tightly to ensure that the control assembly is locked in this state, and at this time, the pipe clamp plate 211 releases the clamping of the control pipe 202, and the first pipe 2 is always in the communicating state. Accordingly, when the free end of the positioning pin 208 passes over the second step 2074 and enters the end of the second guide groove 2072, the free end can be always in this state by the first elastic member 209, and at this time, the control pipe 202 is clamped by the two pipe clamping plates 211, and the first pipe 2 is always in the disconnected state.

In a preferred embodiment, the first elastic member 209 is a tension spring, one end of which is connected to the inside of the housing 1, and the other end of which is connected to the end of the movable plate 206. Meanwhile, in the preferred embodiment, in order to realize the driving of the movable plate 206, a first trigger 210 is correspondingly provided, the middle part of which is hinged with the end of the movable plate 206 and the section departing from the trigger part is hinged inside the housing 1, forming a driving member in the form of a "lever". When the first trigger 210 is pulled, it rotates around the end, and at this time, the movable plate 206 is driven to move correspondingly.

Further, as shown in fig. 12 to 15, the second pipeline 3 in the preferred embodiment is a suction pipeline, and includes a third connection pipe 301, an anti-blocking control member 302, and a fourth connection pipe 303, which are sequentially communicated. One end of the third connecting pipe 301 is connected with one end of the anti-blocking control member 302, and the other end is communicated with the suction lumen in the double-lumen pipe 4; correspondingly, one end of the fourth connection pipe 303 is communicated with one end of the anti-blocking control member 302, and the other end is communicated with the second external connection pipe 6, so that the water solution generated in the operation and the water solution after washing can be sucked away from the surface of the wound.

As shown in fig. 13, 15, the anti-clogging control 302 in the preferred embodiment comprises two lumens, a first lumen 3021 and a second lumen 3022, arranged side by side, preferably in parallel. One end of the first lumen 3021 is open and is communicated with the third connecting tube 301, and a through hole communicated with the second lumen 3022 is formed on the side wall of the first lumen 3021 near one end of the third connecting tube 301, so that water liquid enters the second lumen 3022 from the first lumen 3021. Accordingly, the other end of the first lumen 3021 is preferably arranged in a closed manner, that is, a space for accommodating the massive residues is formed in the first lumen 3021, so that the massive residues can be deposited and stored, and the blockage of the suction pipeline due to the existence of the massive residues can be avoided.

It is understood that, in a preferred embodiment, an end of the first lumen 3021 facing away from the third connecting tube 301 may be provided in the form of an openable and closable valve, and a residue discharge tube is connected to the end for discharging deposited residue.

Further, in the preferred embodiment, both ends of the second lumen 3022 are respectively in an open state, one end of the second lumen 3022 is connected to the end of the fourth connecting tube 303, and the other end of the second lumen 3022 is provided with a piston 304, the piston 304 can reciprocate along the axial direction of the second lumen 3022, and the end of the piston can be embedded into the second lumen 3022, so as to separate the second lumen 3022 from a through hole on the side wall of the second lumen 3022, which is communicated with the first lumen 3021, thereby realizing the on-off control of the anti-blocking control element 302. Obviously, it can be understood that the mating position of the piston 304 with the second lumen 3022 is lower than the two-lumen communication position, i.e. the two-lumen communication position is located on the side of the mating position of the second lumen 3022 with the piston 304 facing away from the fourth connecting tube 303, as shown in fig. 13.

With the above arrangement, the following process can be realized. When the piston 304 is separated from the second lumen 3022, the two lumens are respectively connected to the two connecting tubes, and at this time, the pumped liquid from the third connecting tube 301 can enter the first lumen 3021, the large residue in the pumped liquid can be deposited and contained at the bottom of the first lumen 3021, and the other liquid enters the second lumen 3022 through the through hole between the two lumens and is led out through the second lumen 3022, the fourth connecting tube 303 and the second external connecting tube 6. When the piston 304 is mated with the end of the second lumen 3022, the second lumen 3022 is sealed, and the second conduit 3 is disconnected and no suction is applied.

In addition, as can be seen from fig. 15, the end of the piston 304 is matched with the end of the second lumen 3022 in a sliding and sealing manner, so that when the second pipeline 3 is communicated, the corresponding water liquid can be prevented from overflowing from the anti-blocking control member 302 into the housing 1. Accordingly, the inside of the second lumen 3022 is provided in the form of a stepped hole, a blocking opening having an inner diameter smaller than the inner diameter of the end portion of the second lumen 3022 is formed, and the end portion of the piston 304 is provided with a blocking piece having an outer diameter smaller than the inner diameter of the end portion of the second lumen 3022, so that the blocking piece can move synchronously to approach or leave the blocking opening when the piston 304 moves, thereby completing the blocking or opening of the second lumen 3022.

Further, as shown in fig. 12 and 14, in the preferred embodiment, the piston 304 is driven by the second trigger 306, one end of the second trigger 306 is rotatably connected to the inner side wall surface of the housing 1, and a strut is arranged at the side end of the second trigger 306, so that the strut is rotatably connected to the end of the piston 304 away from the second lumen 3022, so that a "lever" structure can be formed between the second trigger 306 and the piston 304, and the second trigger 306 can rotate correspondingly with the connection point of the second trigger 306 and the housing 1 as a fulcrum, and at this time, the strut rotates with the step to drive the piston 304 to move.

In order to ensure a precise movement of the piston 304, guide shoes are provided on the inside of the housing 1, as shown in fig. 2, in order to ensure that the movement of the piston 304 is always performed in its axial direction. In order to automatically reset the second trigger 306, a second elastic member 305 is provided on the side of the piston 304 facing away from the second lumen 3022, and has one end fixed in the housing 1 and the other end abutting against the end of the piston 304. In turn, the second resilient member 305 is continuously compressed as the second trigger 306 is squeezed and the piston 304 is caused to move away from the second lumen 3022, such that when the user releases the second trigger 306, the second resilient member 305 pushes the piston 304 toward the second lumen 3022 under its restoring force after compression, causing the second trigger 306 to reset.

In a preferred embodiment, the second elastic member 305 is a compression spring, which is disposed coaxially with the piston 304, and a guide rod is disposed at an end of the piston 304, such that an end of the compression spring is sleeved on the guide rod; correspondingly, a limiting groove is formed in the housing 1 corresponding to the other end of the pressure spring, so that the other end of the pressure spring is embedded into the limiting groove and is abutted and limited by the bottom of the limiting groove, as shown in fig. 2.

With the above arrangement, it can be seen that when the second trigger 306 is pressed towards the pistol grip, the compression spring is compressed, the piston 304 is brought out of the locking position of the second lumen 3022, the two lumens are correspondingly connected, and the second conduit 3 is in a connected state. When the user releases the grip of the second trigger 306, the piston 304 may be matched to the locked position of the second lumen 3022 by the restoring force of the compression spring, and the second trigger 306 is driven back to the initial position.

It will be apparent from the foregoing description that the preferred embodiment of the handle gun having the first and

second triggers

210 and 306 on the same side of the handle gun "grip" and the first trigger 210 above the second trigger 306 (i.e., on the side of the second trigger 306 facing away from the bottom of the grip) results after adequate ergonomic fit. Through the arrangement, when a user holds the handle gun, the index finger of the user can be buckled on the first trigger 210, and the middle finger, the ring finger and the little finger can be buckled on the second trigger 306; accordingly, the user can stably hold the gun handle of the handle gun by the thumb and the palm. Meanwhile, when the first trigger 210 and the second trigger 306 are controlled, the movement amplitude of the fingers of the user is extremely small, so that the energy consumption of the user can be effectively saved, and the distraction of a doctor due to the use of a handle gun in the operation process is avoided. Secondly, through the corresponding setting of two elastic components for the handle rifle can keep in the locking state automatically when out of work, has avoided the manual locking of doctor's when performing the operation, has reduced the control link of handle rifle, provides convenience for the use of doctor's when performing the operation. In addition, through the corresponding setting of positioning mechanism, can be so that the state locking when washing the use of doctor, avoid appearing because of the uncomfortable situations such as long-time finger that withhold first trigger 210 and produce is tingled, is sour, reduce the loss to user's physical power.

In more detail, in the preferred embodiment at the bottom of the pistol grip of the casing 1 there is provided a line connection 204, preferably comprising two lines in parallel, communicating with the first line 2 and the second line 3, respectively. In actual installation, one end of the pipeline connector 204 is accommodated in the housing 1 and is connected to the second connecting pipe 203 and the fourth connecting pipe 303 respectively; correspondingly, the other end of the pipeline connector 204 extends out of the surface of the shell 1, so that the connection arrangement of two external pipelines is convenient.

In addition, for the double-lumen tube 4 in the preferred embodiment, the structural form thereof can be changed according to the use environment.

For example, in one embodiment, the dual lumen tube 4 is a stiff metal tube with an outer tube and an inner tube each having a stiff tube structure, wherein the inner tube is an irrigation tube and a suction cavity is formed between the inner tube and the outer tube.

In yet another embodiment, the dual lumen tube 4 is in the form of a "hard and soft" tube, the outer tube of which is a soft flexible tube, preferably made of a soft material of a medical grade material; correspondingly, an accommodating cavity with a certain size is formed on the inner side wall surface of the outer tube along the axial direction, at the moment, the hard inner tube penetrates into the accommodating cavity to support and shape the double-cavity tube 4, and the shape of the double-cavity tube 4 can be adjusted by changing the bending state of the inner tube, so that the corresponding use function is completed.

In practical arrangements, the inner tube of the double lumen tube 4 is often a flushing tube and is preferably provided with a corresponding form of spray head at its end, so that the water jet emerging from the end of the flushing tube may take a corresponding form, such as a fan form, a distributed water column form, a single water column form, etc., which may all be preferred according to practical needs. In addition, in order to facilitate the holding of the user, the housing 1 of the preferred embodiment is provided with a handle cover 104 and/or an upper adhesive cover 105, as shown in fig. 1, and the handle cover 104 and the upper adhesive cover 105 of the preferred embodiment are preferably made of plastic materials meeting the medical grade, so that the holding is comfortable, safe and harmless.

The handle gun disclosed by the invention is compact in structure and convenient and fast to control, can meet the functional requirements of flushing and suction at the same time, realizes the use effect of flushing and suction at the same time, is controlled by pure mechanical control without introducing additional electric control equipment, avoids the interference on related medical equipment in an operating room while simplifying the control process, ensures the reliable operation, improves the use comfort and convenience of a user, and has better practical value and application prospect.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A handle gun comprising a housing; it is characterized in that the preparation method is characterized in that,

at least one pipeline is arranged in the shell;

2. The handle gun of claim 1, further comprising a flush line in the at least one line for aqueous flushing of a work area;

the flushing pipeline comprises a control pipe and a control assembly arranged aiming at the control pipe; the control assembly is arranged on one side of the control tube and used for clamping the control tube and controlling the on-off of the flushing pipeline.

3. The handle gun according to claim 2, wherein the control assembly comprises a fixed base plate, a movable plate and a pair of pipe clamps hinged to one end of the movable plate;

4. The handle gun according to claim 3, wherein the guide blocks are tapered on the inner side of the end close to the control tube, so that a flare structure is formed between the guide blocks.

5. The handle gun of claim 3 or 4, wherein the control assembly further comprises a positioning plate and a positioning pin;

the positioning plate is arranged on the fixed bottom plate, and a first guide groove and a second guide groove are formed in the surface of the positioning plate; the two guide grooves are arc grooves respectively and are connected end to form a ring groove; the groove depth of one end of the first guide groove is greater than that of the second guide groove connected with the first guide groove, and a first step is formed at the connecting part; the groove depth of the other end of the first guide groove is smaller than that of the second guide groove connected with the first guide groove, and a second step is formed at the connecting part;

6. The handle gun according to claim 5, wherein a locking block is formed in a region surrounded by the ring groove, and a locking groove is formed on one side of the locking block close to the control tube, so that the embedded end portion of the positioning pin can be abutted against the inner wall surface of the locking groove when the flushing pipeline is in a communicating state, thereby locking the flushing pipeline in the communicating state.

7. The handle gun according to claim 6, wherein the control assembly further comprises a first resilient member having one end fixed within the housing and the other end connected to the movable plate for locking the position of the locating pin when the movable plate is moved into position.

8. The handle gun according to any one of claims 3 to 7, wherein a control portion protruding from the surface of the housing is provided in correspondence with the control assembly and the adjustment mechanism;

9. The handle gun of claim 8, wherein the control portion of the control assembly is a first trigger;

10. The handle gun of claim 9, wherein the adjustment mechanism is a piston, one end of the piston is in sliding and sealing fit with the second lumen, and the other end of the piston is connected with the adjustment mechanism, so that the piston can slide along the second lumen in an axial direction under the driving of the adjustment mechanism, and the flow rate in the two lumens can be changed.

11. The handle gun of claim 10, wherein the control of the adjustment mechanism is a second trigger;

12. The handle gun according to claim 11, wherein a second resilient member is provided in correspondence with the piston, one end of which is retained in the housing and the other end of which acts on the end of the piston, for resetting the piston when the second trigger is deactivated.

13. The handle gun of claim 11 or 12, wherein the first trigger is located above the second trigger.

14. The handle gun according to any one of claims 1 to 13, wherein a double lumen tube is further provided on the housing;

The inner pipe of the double-cavity pipe is a hard pipe, the outer pipe is a soft pipe, and the inner pipe is used for supporting and shaping the double-cavity pipe.

15. The handle gun according to any one of claims 1 to 14, wherein a pipe connection is further provided on the housing;