Hand-held gun with adjustable liquid inlet flow

Abstract

The utility model relates to the field of medical instruments, in particular to a liquid inlet flow adjustable handheld gun which comprises a handle, and a flushing hose and a flow adjusting mechanism are arranged in the handle. The flow adjusting mechanism comprises a pressing piece, the pressing piece is extruded on the outer wall of the flushing hose, and flow adjustment of the flushing hose is achieved due to different extrusion degrees by adjusting the position relation between the pressing piece and the outer wall of the flushing hose. By moving the position of the pressing piece, the pressing piece extrudes the outer wall of the flushing hose to different degrees, so that the drift diameter of the flushing hose is changed, and the purpose of adjusting the flow of flushing liquid is achieved. Due to the elastic property of the flushing hose, the position of the pressing piece can be easily and finely adjusted, so that the flushing flow can be controlled; and the whole structure is not provided with electronic components and is convenient to disinfect, clean and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a hand-held gun with adjustable liquid inlet flow. Background Art

[0002] When flushing the surgical site during surgery, it is sometimes necessary to effectively adjust the flushing liquid volume or flushing pressure according to the situation. If it can be adjusted on the handle of the flushing gun, the operation will be more convenient. At present, most similar products control the liquid volume through electronic control. Such products need to be connected to the equipment on the handle, which will cause some inconvenience during operation; on the other hand, electronic products need to be installed on the flushing gun, which will also cause safety hazards to surgical personnel, and there are great difficulties in the maintenance and disinfection of electronic products. Summary of the invention

[0003] In order to solve the above-mentioned existing technical problems, the utility model provides a hand-held gun with adjustable liquid inlet flow, comprising a handle, wherein a flushing hose and a flow regulating mechanism are arranged in the handle;

[0004] The flow regulating mechanism comprises a pressing piece, and the pressing piece is pressed on the outer wall of the flushing hose. By adjusting the positional relationship between the pressing piece and the outer wall of the flushing hose, the flow of the flushing hose can be regulated due to different squeezing degrees.

[0005] Preferably, the flow regulating mechanism also includes a flushing regulating knob, which is rotatably connected to the handle, and the pressing piece is threadedly connected to the flushing regulating knob. A liquid inlet channel is provided in the handle, and the flushing hose is located in the liquid inlet channel. The flushing regulating knob is rotated to drive the pressing piece to press the flushing hose to achieve flow regulation.

[0006] Preferably, a partial area of ​​the flushing adjustment knob is exposed from the bent portion of the handheld gun.

[0007] Preferably, the flushing adjustment knob is a gear, and the outer surface of the pressing member is threadedly connected to the inner surface of the center circle of the gear.

[0008] Preferably, a fixing column is fixedly provided in the handle, the pressing member is a bolt with a hole, the outer surface of the fixing column is threadedly connected to the bolt with a hole, and the outer surface of the bolt with a hole is threadedly connected to the flushing adjustment knob;

[0009] The fixing column and the bolt with holes are provided with holes in the radial direction, and the flushing hose passes through the fixing column and the bolt with holes along the holes;

[0010] By rotating the flushing adjustment knob, the bolt with a hole moves along the axial direction of the fixing column, thereby squeezing the flushing hose to different degrees.

[0011] Preferably, a suction channel is further provided in the handle, and liquid is ejected from the flushing hose to the target tissue, and the liquid in the target tissue is sucked back by the negative pressure in the suction channel.

[0012] Preferably, a replaceable gun head is provided at the end of the handle, and the replaceable gun head is provided with a first channel and a second channel respectively connected to the flushing hose and the back-suction channel.

[0013] Preferably, the first channel and the second channel are both hollow cylindrical channels, and the first channel is located inside the second channel.

[0014] Preferably, the liquid inlet end of the flushing hose is connected to the liquid bag.

[0015] Preferably, a peristaltic pump is provided on the flushing hose between the handle and the fluid bag, and the peristaltic pump squeezes the flushing hose to form a jet.

[0016] The beneficial effect of the utility model is that the entire handheld gun looks like a handle from the outside, and the flushing flow rate of the flushing liquid can be adjusted by holding the handle. During the operation, one hand can flush the human tissue, and one hand can adjust the flow rate without any external assistance. All mechanical structure products do not involve electronic components, and will not cause safety hazards to relevant personnel during the operation. And the entire handle including various structures inside is a disposable product. After one use, the entire handle can be directly scrapped. Even if it is not made into a disposable product, since it is a purely mechanical structure, it is relatively convenient to maintain and disinfect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a hand-held gun with adjustable liquid inlet flow provided by the utility model;

[0018] Figure 2 The utility model provides Figure 1 A cross-sectional view of

[0019] Figure 3 The utility model provides Figure 1 A partial cross-sectional view of a side view of;

[0020] Figure 4 This is a partial enlarged view of AA under a small flushing flow state provided by the utility model;

[0021] Figure 5 A three-dimensional diagram of the utility model under a small flushing flow state;

[0022] Figure 6 This is a partial enlarged view of AA under the large flushing flow state provided by the utility model;

[0023] Figure 7 This is a stereoscopic diagram of the utility model under a large flushing flow state.

[0024] Figure numerals: 1. handle; 2. replaceable gun head; 3. flushing hose; 4. fixing column; 5. flushing adjustment knob; 8. flushing and suction connector; 8-1. suction channel connector; 8-2 flushing channel connector; 12. bolt with hole; 13. suction hose. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1-Figure 2 The embodiment of the utility model provides a hand-held gun with adjustable liquid inlet flow, including a handle 1, in which a flushing hose 3 and a flow regulating mechanism are arranged; the flow regulating mechanism includes a pressing piece, and the pressing piece is squeezed on the outer wall of the flushing hose 3. By adjusting the positional relationship between the pressing piece and the outer wall of the flushing hose 3, the flushing hose 3 can achieve flow regulation due to different squeezing degrees.

[0027] During or after the operation, the human tissue at the surgical site needs to be flushed, so a handheld gun is needed, which is not only easy to operate, but can be done by one person with one hand. When it is needed, connect the flushing hose 3 with the liquid bag, hold the handle 1, and insert the gun head into the tissue. The pressurized flushing liquid forms a jet through the flushing hose 3 to complete the flushing. Before the flushing starts or during the flushing process, the position of the pressing piece can be adjusted, and the distance between the pressing piece and the flushing hose 3 can be changed to achieve different degrees of squeezing of the flushing hose 3 by the pressing piece. The tighter the squeezing, the smaller the diameter of the flushing hose 3, and thus the smaller the flow of the flushing liquid, thereby achieving the adjustment of the liquid inlet flow (flushing liquid flow).

[0028] like Figure 3-Figure 7As shown, in a further solution, the flow regulating mechanism also includes a flushing regulating knob 5, the flushing regulating knob 5 is rotatably connected to the handle 1, the pressing piece is threadedly connected to the flushing regulating knob 5, a liquid inlet channel is provided in the handle 1, the flushing hose 3 is located in the liquid inlet channel, and the flushing regulating knob 5 is rotated to drive the pressing piece to press the flushing hose 3 to achieve flow regulation. The flushing regulating knob 5 itself can only rotate but cannot move. According to general usage habits, the handle 1 is held by hand, and the thumb is used to rotate the flushing regulating knob. Since the pressing piece cannot rotate and can only move along its own axial direction, under the action of the threaded cooperation between the flushing regulating knob and the pressing piece, the rotation of the flushing regulating knob will cause the pressing piece to move along its own central axis direction. By rotating the flushing regulating knob forward or reversely, the pressing piece can be moved back and forth, thereby squeezing or releasing the flushing hose 3 to complete the flow regulation.

[0029] In a further embodiment, a portion of the flushing adjustment knob 5 is exposed from the bent portion of the handheld gun. Figure 1 and Figure 2 The outer edge of the flushing adjustment knob 5 is exposed from the bent portion of the handle 1, which is convenient for finger operation.

[0030] In a further embodiment, the flushing adjustment knob 5 is a gear, and the outer surface of the pressing member is threadedly connected to the inner surface of the center circle of the gear. The edge of the gear is toothed, so that the gear can be easily rotated by pressing a finger on it, thereby driving the pressing member to move.

[0031] In a further solution, a fixing column 4 is fixedly provided in the handle 1, and the pressing piece is a holed bolt 12. The outer surface of the fixing column 4 is threadedly connected to the holed bolt 12, and the outer surface of the holed bolt 12 is threadedly connected to the flushing adjustment knob 5; the fixing column 4 and the holed bolt 12 are both provided with holes in the radial direction, and the flushing hose 3 passes through the fixing column 4 and the holed bolt 12 along the holes; by rotating the flushing adjustment knob 5, the holed bolt 12 moves along the axial direction of the fixing column 4, thereby squeezing the flushing hose 3 to varying degrees.

[0032] Further solutions, such as Figure 1 As shown, a suction channel is also provided in the handle 1, and liquid is ejected from the flushing hose 3 to the target tissue, and the liquid in the target tissue is sucked back by the negative pressure in the suction channel. A suction hose 13 is fixed in the suction channel, and flushing and suction constitute a common handheld gun, flushing human tissue through the flushing hose 3, and at the same time, the flushing liquid in the tissue is sucked back by the negative pressure of the suction channel.

[0033] In a further solution, a replaceable gun head 2 is provided at the end of the handle 1, and the replaceable gun head 2 is provided with a first channel and a second channel respectively connected to the flushing hose 3 and the back-suction channel. Since the handle 1 is an integral body, and flushing and back-suction need to be close to or in contact with human tissue, the ends of flushing and back-suction must be replaced or disinfected. Based on this, the end is designed as a replaceable gun head 2, and the replaceable gun head 2 is connected to the end of the handle 1 when in use. After use, the replaceable gun head 2 is dismantled and disinfected for secondary use, or it can be discarded at one time. It should be pointed out that the connection between the replaceable gun head 2 and the handle 1 is a conventional detachable connection method, such as a snap, plug-in, etc. When connecting, it is only necessary to connect the flushing hose 3 and the back-suction channel to the first channel and the second channel respectively, or a plug-in leak-proof method can be used.

[0034] In a further solution, both the first channel and the second channel are hollow cylindrical channels, and the first channel is located inside the second channel. This design allows the flushing channel to be located inside the back-suction channel, which saves space and also allows the flushing channel to have a larger jet flow, and the back-suction channel has a larger maximum back-suction range, thereby preventing blockage.

[0035] In a further solution, the liquid inlet end of the flushing hose 3 extends from the bottom end of the handle 1 and is connected to the liquid bag. A peristaltic pump is provided on the flushing hose 3 between the handle 1 and the liquid bag, and the flushing hose 3 is squeezed by the peristaltic pump to form a jet. The liquid bag generally contains a flushing liquid, and the liquid can be selected according to the use requirements. When in use, the liquid inlet end of the flushing hose 3 extends from the bottom end of the handle 1, and it is connected to the pipeline of the liquid bag. Generally, a peristaltic pump is provided on the pipeline of the liquid bag, and the flushing liquid is transported by squeezing the pipeline by the peristaltic pump.

[0036] In a specific implementation scenario, such as Figure 1 As shown, a flushing and re-suction connector 8 is provided at the bottom end of the handle, and a re-suction channel connector 8-1 and a flushing channel connector 8-2 are provided on the flushing and re-suction connector 8, which are respectively connected to the re-suction hose 13 and the flushing hose 3. When in use, the re-suction channel connector 8-1 and the flushing channel connector 8-2 can be directly connected to the external recovery pool and the liquid bag respectively.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0041] 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. A hand-held gun with adjustable liquid inlet flow, comprising a handle, characterized in that: A flushing hose and a flow regulating mechanism are provided in the handle; The flow regulating mechanism comprises a pressing piece, and the pressing piece is pressed on the outer wall of the flushing hose. By adjusting the positional relationship between the pressing piece and the outer wall of the flushing hose, the flow of the flushing hose can be regulated due to different squeezing degrees.

2. The hand-held gun with adjustable liquid inlet flow rate according to claim 1, characterized in that: The flow regulating mechanism also includes a flushing regulating knob, which is rotatably connected to the handle, and the pressing piece is threadedly connected to the flushing regulating knob. A liquid inlet channel is provided in the handle, and the flushing hose is located in the liquid inlet channel. The flushing regulating knob is rotated to drive the pressing piece to press the flushing hose to achieve flow regulation.

3. The hand-held gun with adjustable liquid inlet flow rate according to claim 2, characterized in that: A partial area of ​​the flushing adjustment knob is exposed from the bent portion of the handheld gun.

4. The hand-held gun with adjustable liquid inlet flow rate according to claim 2, characterized in that: The flushing adjustment knob is a gear, and the outer surface of the pressing piece is threadedly connected with the inner surface of the center circle of the gear.

5. The hand-held gun with adjustable liquid inlet flow rate according to claim 2, characterized in that: A fixing column is fixed in the handle, the pressing piece is a bolt with a hole, the outer surface of the fixing column is threadedly connected to the bolt with a hole, and the outer surface of the bolt with a hole is threadedly connected to the flushing adjustment knob; The fixing column and the bolt with holes are provided with holes in the radial direction, and the flushing hose passes through the fixing column and the bolt with holes along the holes; By rotating the flushing adjustment knob, the bolt with a hole moves along the axial direction of the fixing column, thereby squeezing the flushing hose to different degrees.

6. The hand-held gun with adjustable liquid inlet flow rate according to claim 1, characterized in that: A re-suction channel is also provided in the handle, and liquid is ejected from the flushing hose to the target tissue, and the liquid at the target tissue is re-suctioned by the negative pressure in the re-suction channel.

7. The hand-held gun with adjustable liquid inlet flow rate according to claim 6, characterized in that: A replaceable gun head is provided at the end of the handle, and a first channel and a second channel connected to the flushing hose and the back-suction channel are provided on the replaceable gun head.

8. The hand-held gun with adjustable liquid inlet flow rate according to claim 7, characterized in that: The first channel and the second channel are both hollow cylindrical channels, and the first channel is located inside the second channel.

9. The hand-held gun with adjustable liquid inlet flow rate according to claim 1, characterized in that: The liquid inlet end of the flushing hose extends from the bottom end of the handle and is connected to the liquid bag.

10. The hand-held gun with adjustable liquid inlet flow rate according to claim 9, characterized in that: A peristaltic pump is arranged on the flushing hose between the handle and the liquid bag, and a jet is formed by squeezing the flushing hose through the peristaltic pump.

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