Flow path control device for bone tissue cutting knife system and bone tissue cutting knife system

Abstract

The embodiment of the utility model provides a flow path control device for a bone tissue cutting knife system, the bone tissue cutting knife system comprises a grinding head and a micro camera, the flow path control device comprises a first flow path, a second flow path, a third flow path and a fourth flow path, the second flow path is used for injecting fluid to wash the micro camera; and the reversing valve is connected with the first flow path and the second flow path and is used for switching the flow of the fluid in the first flow path and the second flow path. The embodiment of the utility model further provides a bone tissue cutting knife system. The bone tissue cutting knife system comprises a grinding head, a micro camera and a flow path control device, a first flow path of the flow path control device is used for injecting fluid to wash the grinding head, and a second flow path of the flow path control device is used for injecting fluid to wash the micro camera. Flow of fluid in the first flow path and the second flow path is switched by arranging a reversing valve.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a flow path control device for a bone tissue cutting knife system and the bone tissue cutting knife system. Background Art

[0002] The bone tissue cutting knife system is used to remove necrotic bone tissue in the femoral head. The lesion location is observed through repeated X-ray filming to prevent deviation in the cutting action. Then, the necrotic bone tissue is removed using a grinding head clamped by a mobile phone to ensure that the desired cavity is formed in the femoral head. During the cutting process, fluid needs to be injected to flush the grinding head of the bone tissue cutting knife system. In the existing bone tissue cutting knife system, only one flow path is set to clean the grinding head. If a flow path is added, two syringes are required. The syringes are large in size and very inconvenient to use. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, an embodiment of the utility model provides a flow path control device for a bone tissue cutting knife system and a bone tissue cutting knife system, which switches the flow of fluid in a first flow path and a second flow path by setting a reversing valve.

[0004] According to one aspect of the utility model, a flow path control device for a bone tissue cutting knife system is provided. The bone tissue cutting knife system includes a grinding head and a micro camera, and the flow path control device includes: a first flow path for injecting fluid to flush the grinding head; a second flow path for injecting fluid to flush the micro camera; and a reversing valve connected to the first flow path and the second flow path, for switching the flow of the fluid in the first flow path and the second flow path.

[0005] According to some embodiments of the present invention, the reversing valve includes a valve body and a reversing piston, the valve body is connected to the first flow path and the second flow path, and the reversing piston can move within the valve body to switch the flow of the fluid in the first flow path and the second flow path.

[0006] According to some embodiments of the present invention, the reversing piston is provided with a fluid channel allowing the fluid to flow.

[0007] According to some embodiments of the present utility model, the reversing valve further includes a pressing cap for moving the reversing piston.

[0008] According to some embodiments of the present utility model, the reversing valve further includes a return spring for returning the reversing piston.

[0009] According to some embodiments of the present invention, the first flow path is further provided with a three-way connector for inserting instrument accessories and a Luer connector connected to the three-way connector.

[0010] According to some embodiments of the utility model, the reversing valve is also provided with a Luer interface for connecting a syringe.

[0011] According to another aspect of the utility model, a bone tissue cutting knife system is provided. The bone tissue cutting knife system includes a grinding head and a micro camera, and also includes a flow path control device for the bone tissue cutting knife system according to any of the aforementioned embodiments, wherein the first flow path of the flow path control device is used to inject fluid to flush the grinding head, and the second flow path of the flow path control device is used to inject fluid to flush the micro camera.

[0012] According to some embodiments of the present invention, when the reversing valve of the flow path control device is in the first working state, the fluid is allowed to be injected into the first flow path to flush the grinding head, and the fluid is prevented from being injected into the second flow path to flush the micro camera.

[0013] According to some embodiments of the present invention, when the reversing valve of the flow path control device is in the second working state, the fluid is prevented from being injected into the first flow path to flush the grinding head, and the fluid is allowed to be injected into the second flow path to flush the micro camera.

[0014] In the flow path control device for the bone tissue cutting knife system of the above embodiment, the first flow path is used to inject fluid to wash the grinding head, the second flow path is used to inject fluid to wash the micro camera, and the reversing valve is connected to the first flow path and the second flow path, and is used to switch the flow of the fluid in the first flow path and the second flow path. By setting the reversing valve to switch the flow of the fluid in the first flow path and the second flow path, only one syringe is needed to realize the water injection of the two flow paths, so as to clean the grinding head and the micro camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features and advantages of the present invention will be better understood through the optional embodiments described in detail below in conjunction with the accompanying drawings, in which the same reference numerals represent the same or similar components, wherein:

[0016] Figure 1 A schematic structural diagram of a flow path control device for a bone tissue cutting knife system according to an embodiment of the utility model is shown;

[0017] Figure 2 Shows Figure 1 An enlarged schematic diagram of part A of a flow path control device for a bone tissue cutting knife system according to the embodiment shown in FIG.

[0018] Figure 3 Shows Figure 1 A schematic structural diagram of the embodiment shown in the figure when the reversing valve of the flow path control device for the bone tissue cutting knife system is in the first working state; and

[0019] Figure 4 Shows Figure 1 The structure diagram of the reversing valve of the flow path control device for the bone tissue cutting knife system of the embodiment shown in FIG. 1 is in the second working state. DETAILED DESCRIPTION

[0020] The implementation and use of the embodiments are discussed in detail below. However, it should be understood that the specific embodiments discussed are merely exemplary of specific ways to implement and use the present invention, and are not intended to limit the scope of the present invention. When describing the structural positions of the various components, such as up, down, top, bottom, etc., the expressions of directions are not absolute, but relative. When the various components are arranged as shown in the figure, these directional expressions are appropriate, but when the positions of the various components in the figure change, these directional expressions also change accordingly.

[0021] During the cutting process, fluid needs to be injected to rinse the grinding head of the bone tissue cutting knife system. In the existing bone tissue cutting knife system, only one flow path is provided, which is very inconvenient to use.

[0022] An embodiment of the utility model provides a bone tissue cutting knife system, which includes a grinding head and a micro camera. The grinding head and the micro camera are combined together, the micro camera is used to obtain the patient's necrotic bone tissue condition, and the grinding head is used to remove the necrotic bone tissue, thereby achieving precise removal of the necrotic bone tissue.

[0023] To this end, an embodiment of the utility model provides a flow path control device for a bone tissue cutting knife system. The bone tissue cutting knife system includes a grinding head and a micro camera, and the flow path control device includes: a first flow path for injecting fluid to flush the grinding head; a second flow path for injecting fluid to flush the micro camera; and a reversing valve connected to the first flow path and the second flow path, for switching the flow of the fluid in the first flow path and the second flow path.

[0024] By setting the reversing valve to switch the flow of fluid in the first flow path and the second flow path, only one syringe is needed to inject water into the two flow paths, so as to clean the grinding head and the micro camera.

[0025] The structure and function of the flow path control device for the bone tissue cutting knife system according to the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0026] Figure 1The structure diagram of the flow path control device for the bone tissue cutting knife system according to the embodiment of the utility model is shown. Figure 2 Shows Figure 1 FIG. 1 is an enlarged schematic diagram of part A of a flow path control device for a bone tissue cutting knife system according to the embodiment shown in FIG. Figure 3 Shows Figure 1 A schematic diagram of the structure of the reversing valve of the flow path control device for the bone tissue cutting knife system of the embodiment shown in FIG. 1 when the reversing valve is in the first working state, Figure 4 Shows Figure 1 The structure diagram of the reversing valve of the flow path control device for the bone tissue cutting knife system of the embodiment shown in FIG. 1 is in the second working state.

[0027] According to some embodiments of the present invention, the bone tissue cutting knife system includes a grinding head and a micro camera.

[0028] like Figure 1 to Figure 2 As shown in the figure, the flow path control device 30 for the bone tissue cutting knife system includes a first flow path 31, a second flow path 32 and a reversing valve 33. The first flow path 31 is used to inject fluid to flush the grinding head of the bone tissue cutting knife system, lubricate and cool the grinding head, and the second flow path 32 is used to inject fluid to flush the micro camera of the bone tissue cutting knife system, clean the bone tissue and blood splashed on the micro camera, and prevent the field of view of the micro camera from being blocked.

[0029] The reversing valve 33 is connected to the first flow path 31 and the second flow path 32, and is used to switch the flow of the fluid in the first flow path 31 and the second flow path 32. The first flow path 31 and the second flow path 32 can be provided by double-row pipes, and the fluid can be gas or liquid, such as water. The miniature camera can be a waterproof camera, etc. The first flow path 31 and the second flow path 32 can be formed by one double-row pipe, or by multiple double-row pipes connected by double-tube joints, which is conducive to subsequent packaging and disinfection operations.

[0030] In some embodiments, the reversing valve 33 includes a valve body 331 and a reversing piston 332 . The valve body 331 is connected to the first flow path 31 and the second flow path 32 . The reversing piston 332 can move in the valve body 331 to switch the flow of the fluid in the first flow path 31 and the second flow path 32 .

[0031] By providing a reversing valve 33 to switch the flow of fluid in the first flow path 31 and the second flow path 32, only one syringe is needed to inject water into the two flow paths, so as to clean the grinding head and the micro camera of the bone tissue cutting knife system.

[0032] In some embodiments, the reversing piston 332 is provided with a fluid channel 3321 for allowing fluid to flow. By moving the reversing piston 332, the reversing valve 33 is switched between the first working state and the second working state.

[0033] like Figure 3 As shown in FIG. 1 , when the reversing valve 33 is in the first working state, the fluid channel 3321 of the reversing piston 332 is connected to the first flow path 31 , allowing fluid to be injected into the first flow path 31 to flush the grinding head, and preventing fluid from being injected into the second flow path 32 to flush the micro camera.

[0034] like Figure 4 As shown in FIG. 1 , when the reversing valve 33 is in the second working state, the fluid channel 3321 of the reversing piston 332 is connected to the second flow path 32, preventing the fluid from being injected into the first flow path 31 to flush the grinding head, and allowing the fluid to be injected into the second flow path 32 to flush the micro camera.

[0035] In some embodiments, the reversing valve 33 further includes a pressing cap 333 for moving the reversing piston 332, which is beneficial for operating the reversing valve 33. In some embodiments, the reversing valve 33 further includes a return spring 334 for returning the reversing piston 332, which is beneficial for returning the reversing valve 33. The return spring 334 surrounds the reversing piston 332 and is located between the reversing piston 332 and the pressing cap 333.

[0036] In a normal state, that is, when the pressing cap 333 is not pressed, the reversing valve 33 is in a first working state, and the fluid channel 3321 of the reversing piston 332 is connected to the first flow path 31, allowing fluid to be injected into the first flow path 31 to flush the grinding head, and preventing fluid from being injected into the second flow path 32 to flush the micro camera.

[0037] When the user presses the pressing cap 333, the pressing cap 333 compresses the return spring 334 and the reversing piston 332 moves downward. At this time, when the reversing valve 33 is in the second working state, the fluid channel 3321 of the reversing piston 332 is connected to the second flow path 32, preventing the fluid from being injected into the first flow path 31 to flush the grinding head, and allowing the fluid to be injected into the second flow path 32 to flush the micro camera.

[0038] When the cleaning of the micro camera is finished, the user releases the pressing cap 333 , and the reversing piston 332 moves upward to the initial position under the action of the return spring 334 , so that the reversing valve 33 is in the first working state.

[0039] In some embodiments, the reversing valve 33 is further provided with a Luer port 335 for connecting a syringe. The syringe is connected through the Luer port 335, and the fluid is injected into the fluid channel 3321 of the reversing piston 332 of the reversing valve 33, and then injected into the first flow path 31 or the second flow path 32 through the fluid channel 3321 of the reversing piston 332.

[0040] In some embodiments, the first flow path 31 is further provided with a three-way connector 34 for inserting instrument accessories and a Luer connector 35 connected to the three-way connector 34. By providing the three-way connector 34 and the Luer connector 35 to access other instrument accessories, other operations such as biopsy and slicing can be performed during the cutting process.

[0041] In some embodiments, the Luer connector 35 includes a Luer (female) adapter 351 and a Luer (male) interface plug cover 352. When the Luer (male) interface plug cover 352 is closed, it is used as a water passage to pass fluid, and when the Luer (male) interface plug cover 352 is opened, it can be used as an instrument channel to access other instrument accessories.

[0042] An embodiment of the utility model also provides a bone tissue cutting knife system, including a grinding head, a micro camera and a flow control device, wherein the first flow path of the flow control device is used to inject fluid to flush the grinding head, and the second flow path of the flow control device is used to inject fluid to flush the micro camera.

[0043] In some embodiments, when the reversing valve of the flow path control device is in the first working state, fluid is allowed to be injected into the first flow path to flush the grinding head, and fluid is prevented from being injected into the second flow path to flush the micro camera.

[0044] In some embodiments, when the reversing valve of the flow path control device is in the second working state, the fluid is prevented from being injected into the first flow path to flush the grinding head, and the fluid is allowed to be injected into the second flow path to flush the micro camera.

[0045] In the flow path control device for the bone tissue cutting knife system of the above embodiment, the first flow path is used to inject fluid to wash the grinding head, the second flow path is used to inject fluid to wash the micro camera, and the reversing valve is connected to the first flow path and the second flow path, and is used to switch the flow of the fluid in the first flow path and the second flow path. By setting the reversing valve to switch the flow of the fluid in the first flow path and the second flow path, only one syringe is needed to realize the water injection of the two flow paths, so as to clean the grinding head and the micro camera.

[0046] The technical content and technical features of the utility model have been disclosed above. However, it can be understood that under the creative idea of ​​the utility model, technicians in this field can make various changes and improvements to the above-disclosed concepts, but they all belong to the protection scope of the utility model. The description of the above implementation mode is illustrative rather than restrictive, and the protection scope of the utility model is determined by the claims.

Claims

1. A flow path control device for a bone tissue cutting knife system, characterized in that: The bone tissue cutting knife system includes a grinding head and a micro camera, and the flow path control device includes: A first flow path, for injecting fluid to flush the grinding head; A second flow path, for injecting fluid to flush the micro camera; and A reversing valve is connected to the first flow path and the second flow path, and is used to switch the flow of the fluid in the first flow path and the second flow path.

2. The flow path control device for a bone tissue cutting knife system according to claim 1, characterized in that: The reversing valve includes a valve body and a reversing piston. The valve body is connected to the first flow path and the second flow path. The reversing piston can move in the valve body to switch the flow of the fluid in the first flow path and the second flow path.

3. The flow path control device for a bone tissue cutting knife system according to claim 2, characterized in that: The reversing piston is provided with a fluid passage allowing the fluid to flow.

4. The flow path control device for a bone tissue cutting knife system according to claim 2, characterized in that: The reversing valve further comprises a pressing cap for moving the reversing piston.

5. The flow path control device for a bone tissue cutting knife system according to claim 2, characterized in that: The reversing valve further comprises a return spring for returning the reversing piston.

6. The flow path control device for a bone tissue cutting knife system according to any one of claims 1 to 5, characterized in that: The first flow path is also provided with a three-way connector for inserting instrument accessories and a Luer connector connected to the three-way connector.

7. The flow path control device for a bone tissue cutting knife system according to any one of claims 1 to 5, characterized in that: The reversing valve is also provided with a Luer interface for connecting a syringe.

8. A bone tissue cutting knife system, characterized in that: It includes a grinding head and a miniature camera, and also includes a flow control device for a bone tissue cutting knife system according to any one of claims 1 to 7, wherein the first flow path of the flow control device is used to inject fluid to flush the grinding head, and the second flow path of the flow control device is used to inject fluid to flush the miniature camera.

9. The bone tissue cutting knife system according to claim 8, characterized in that: When the reversing valve of the flow path control device is in the first working state, the fluid is allowed to be injected into the first flow path to flush the grinding head, and the fluid is prevented from being injected into the second flow path to flush the micro camera.

10. The bone tissue cutting knife system according to claim 8, characterized in that: When the reversing valve of the flow path control device is in the second working state, the fluid is prevented from being injected into the first flow path to flush the grinding head, and the fluid is allowed to be injected into the second flow path to flush the micro camera.

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