WO2019104686A1

WO2019104686A1 - Water jet arthroscope

Info

Publication number: WO2019104686A1
Application number: PCT/CN2017/114043
Authority: WO
Inventors: 孙光宇; 王良基
Original assignee: 惠州海卓科赛医疗有限公司
Priority date: 2017-11-29
Filing date: 2017-11-30
Publication date: 2019-06-06
Also published as: CN107874736A; CN107874736B

Abstract

A water jet arthroscope, comprising a pump body assembly (1), a water jet assembly (2), an endoscope module (3), and a cryoablation assembly (4). The water jet assembly (2) is connected to the pump body assembly (1); the endoscope module (3) is connected to the water jet assembly (2); the cryoablation assembly (4) comprises a cryo-switch ball valve (41), a cryoablation catheter (42), and a cryo-balloon (43); the cryo-switch ball valve (41) is provided on the water jet assembly (2); one end of the cryoablation catheter (42) is connected to an outlet of the cryo-switch ball valve (41), and the other end thereof passes through the endoscope module (3; the cryo-balloon (43) is provided at the other end of the cryoablation catheter (42). The water jet arthroscope is easy to operate by a doctor, causes less bleeding, achieves quick postoperative recovery of a patient, shortens an operation duration, is high in treatment effectiveness, reduces severe complications such as thrombosis, and lowers the pain level of the patient; moreover, the doctor and an observer can view an image of the knee of the patient in real time by means of an external workstation and can examine the knee of the patient in detail, so that the operation safety is increased.

Description

Waterjet arthroscopy

Technical field

The invention relates to the technical field of medical instruments, and in particular to a water knife arthroscope.

Background technique

Arthroscopic technology uses high-tech imaging technology and fiber-optic technology to display the internal structure of the human body, while achieving optimal levels of tissue repair and joint function. It has become the most widely used tool in orthopedic surgery, initially used only to observe intra-articular structures, and has now become the most important device for most surgical operations in each body of the body. Modern arthroscopy has become one of the main methods for diagnosing and treating intra-articular diseases. It has been used in knees, shoulders, elbows, wrists, ankles, hips and vertebral bodies, and even in non-articular areas. However, the structure of modern arthroscopy equipment and its supporting equipment is complicated and expensive. It is often necessary to replace the instruments such as knives, scissors, and grinding heads and remove the excised tissue during surgery, which not only wastes precious operation time, but also causes excessive open surgery. The channel increases the chance of infection.

Summary of the invention

In order to solve the above technical problems, the present invention provides a waterjet arthroscope comprising a pump body assembly;

a water knife assembly connected to the pump body assembly;

An endoscope module coupled to the waterjet assembly;

The cryoablation assembly comprises a refrigerating switch ball valve, a cryoablation catheter and a refrigerated balloon, and the refrigerating switch ball valve is disposed on the water jet assembly, one end of the cryoablation catheter is connected to the outlet of the refrigerating switch ball valve, and the other end is passed through the endoscope module, and is frozen The balloon is placed at the other end of the cryoablation catheter.

According to an embodiment of the invention, the waterjet arthroscope further includes a handle, the handle enclosing the waterjet assembly, and located between the endoscope module and the pump body assembly.

According to an embodiment of the invention, the pump body assembly includes a pump body and a high pressure pipe. The pump body has a liquid inlet port and a liquid outlet port. One end of the high pressure pipe communicates with the liquid outlet, and the other end of the pump is connected to the water jet assembly.

According to an embodiment of the present invention, the water knife assembly includes a return pipe, a adapter, an outer pipe, an inlet pipe, and a scraper. The return pipe is located in the handle, one end of which is connected to the high pressure pipe, and the adapter is connected to the other end of the return pipe. The tube is connected to the adapter, one end of which is connected to the endoscope module, and one end of the inlet pipe sequentially penetrates the outer tube, the adapter and the return tube are connected to the other end of the high pressure pipeline, and the scraper communicates with the other end of the inlet pipe, and corresponds to the outer tube .

According to an embodiment of the invention, the scraping cutter has a liquid passage, the liquid passage is connected to the liquid inlet pipe, and the outlet of the liquid passage corresponds to the outer pipe.

According to an embodiment of the invention, the water jet assembly further includes an inlet valve, and the inlet valve is disposed on the outer tube.

According to an embodiment of the invention, the endoscope module includes a connecting rod, a sheath, an image sensing component and a USB connecting line, and the connecting rod is disposed between the adapter and the inlet valve, and wraps the waterjet assembly, the sheath The water inlet knife is connected to the connecting rod, the water knife assembly is located in the sheath, and the image sensing component is disposed at one end of the sheath, corresponding to the waterjet assembly, one end of the USB cable is connected to the image sensing component, and the other end is connected to the outside. workstation.

According to an embodiment of the invention, the endoscope module includes a connecting rod, a sheath, an image sensing component and a wireless transmitter, and the connecting rod is disposed between the adapter and the inlet valve, and wraps the waterjet assembly, the sheath The water inlet knife is connected to the connecting rod, the water knife assembly is located in the sheath, the image sensing component is disposed at one end of the sheath, corresponding to the water knife assembly, the wireless transmitter is electrically connected to the image sensing component, and the wireless external workstation.

According to an embodiment of the invention, the image sensing component comprises a camera and an LED lamp, and the LED lamp is located at one side of the camera.

According to an embodiment of the present invention, the camera is disposed on the sheath in a manner of welding or bonding or riveting.

The invention has the following advantages:

The water jet arthroscope of the invention is easy for the doctor to operate, has less bleeding, quick recovery of the postoperative patient, shortens the operation time, has high therapeutic effectiveness, reduces severe complications such as blood clots, and reduces the pain of the patient, and Doctors and observers can view the knee joint image in real time through an external workstation, which can examine the knee joint in detail and increase the safety of the operation.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

1 is a perspective structural view of a waterjet arthroscope according to a first embodiment of the present invention.

Fig. 2 is an exploded view of the water jet arthroscope according to the first embodiment of the present invention.

3 is a schematic view showing the connection of a pump body assembly and a water jet assembly according to Embodiment 1 of the present invention.

Fig. 4 is a schematic view of a doctor blade according to a first embodiment of the present invention.

FIG. 5 is a schematic diagram of an endoscope module according to Embodiment 1 of the present invention.

FIG. 6 is another schematic diagram of an endoscope module according to Embodiment 1 of the present invention.

FIG. 7 is a schematic diagram of an endoscope module according to a second embodiment of the present invention.

FIG. 8 is another schematic diagram of an endoscope module according to Embodiment 2 of the present invention.

Description of the reference signs:

1, pump body components; 11, pump body; 12, high pressure pipeline; 2, water knife assembly; 21, return pipe; 22, adapter; 23, outer tube; 24, inlet pipe; 25, scraper; Channel; 26, inlet valve; 3, endoscope module; 31, connecting rod; 32, sheath; 321, first channel; 322, second channel; 324, third channel; 33, image sensing component ; 331, camera; 332, LED lights; 34, USB cable; 4, frozen ablation components; 41, freezer switch ball valve; 42, frozen ablation catheter; 43, frozen balloon;

Detailed ways

In the following, various embodiments of the present invention will be disclosed in the drawings, for the sake of clarity, many practical aspects The details will be explained in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and components are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

The use of "first", "second", etc., as used herein, does not specifically mean the order or the order, and is not intended to limit the invention, but merely to distinguish between components or operations described in the same technical terms. .

The present invention is related to a water jet arthroscope related design. In a first aspect, the water jet arthroscope of the present invention is very suitable for use in the diagnosis and treatment of various inflammation, trauma and tumor operations of the knee joint, so as to utilize the doctor to diagnose and operate the knee joint of the patient, and the diagnosis and the surgical procedure are quick. Simple, the target of resection is more clear and quantified, the operation time is shorter, the treatment is more reliable, the operation is completely controllable, and there is no physical, chemical, biological and other factors negative damage to the knee joint; the second aspect, the water knife of the present invention Arthroscopy is also suitable for a variety of other surgical procedures. When the water jet arthroscope of the present invention is used on a patient for various surgical procedures, the water jet arthroscope is passed through a high pressure liquid. In addition, the embodiment of the waterjet arthroscope provided by the present invention can be combined with external workstations of various configurations, so that the doctor and the viewer can intuitively observe the surgical site of the patient, so that the doctor and the viewer can more easily observe the surgical situation and increase the operation. The safety of the operation.

In order to make the present invention easier to understand, the waterjet arthroscope of the present invention and its benefits will be further described in detail below in five specific embodiments. It should be noted that, in the following five specific embodiments, the water jet arthroscope is mainly used for the knee joint operation of the patient, and the high-pressure liquid is introduced therein as an example, but this does not constitute a limitation of the present invention. When a normal liquid is introduced, the water knife arthroscope works and the benefits are basically the same as when a high-pressure liquid is introduced, but the purpose of use is different. Herein, when the liquid is a high-pressure liquid, the high-pressure liquid includes a high-pressure water flow or a high-pressure physiological saline flow or other high-pressure liquid flow, and the type of high-pressure liquid in the water jet arthroscope according to the kind or physical object to be cut when the water jet arthroscope works. The chemical properties are flexibly selected.

1 and FIG. 2, FIG. 1 is a perspective structural view of a waterjet arthroscope according to a first embodiment of the present invention, and FIG. 2 is an exploded view of a waterjet arthroscope according to a first embodiment of the present invention. As shown in the figure, in the embodiment of the present invention In one aspect, the present invention provides a waterjet arthroscope comprising a pump body assembly 1, a water jet assembly 2, an endoscope module 3, and a cryoablation assembly 4. The water jet assembly 2 is connected to the pump body assembly 1. The endoscope module 3 is connected to the water jet assembly 2, and the endoscope module 3 is connected to an external workstation. The cryoablation assembly 4 includes a freeze switch ball valve 41, a cryoablation catheter 42 and a frozen balloon 43. The refrigerating switch ball valve 41 is disposed in the water jet assembly 2, and the inlet of the refrigerating switch ball valve 41 is connected to an external carbon dioxide or liquid nitrogen supply station. One end of the cryoablation catheter 42 is connected to the outlet of the cryostat ball valve 41, the other end of the cryoablation catheter 42 is passed through the endoscope module 3, and the frozen balloon 43 is placed at the other end of the cryoablation catheter 42. When the doctor performs knee surgery, first, the doctor holds the water knife arthroscope, uses the endoscope module 3 to photograph the internal condition of the patient's knee joint, and the endoscope module 3 transmits the internal image of the patient's knee joint to the external workstation, the doctor and the observer. The patient's knee joint is inspected in real time through an external workstation, and the patient's knee joint is inspected. Then, the external workstation passes liquid to the pump body assembly 1, the pump body assembly 1 pressurizes the liquid to a predetermined pressure, and the pump body assembly 1 transmits the predetermined pressure. The liquid to water knife assembly 2, the doctor operates the water jet assembly 2 to cut, ablate, peel or remove the tissue of the knee joint surgical site, and the liquid tissue of the knee joint surgical site is cut, ablated, peeled or cleared, and the liquid is completed. The water knife assembly 2 is stopped, the liquid becomes waste liquid, and the cell tissue and waste liquid which are cut, ablated, peeled off or removed are transferred to the waste liquid recovery station through the water jet assembly 2, and a separate liquid output tube is not needed, thereby reducing the economic burden of the patient. Reduce the risk of infection in subsequent patients. Finally, the doctor opens the freezer switch ball valve 41, carbon dioxide or liquid nitrogen through freezing Transferred into conduit 42 to the freezing of the balloon 43, the balloon 43 into the frozen carbon dioxide or nitrogen expansion, carbon dioxide or liquid nitrogen cryoablation joint surgery site of a patient. Moreover, the water knife assembly 2 cuts the tissue of the knee joint tissue quickly, and the operation time is obviously shortened. The water knife assembly 2 has the function of cutting the line and synchronously sucking the tissue and waste liquid of the knee joint without complications. After the cutting, ablation, peeling or removal is completed, the waterjet assembly 2 is closed.

Referring to FIG. 2, in the first embodiment of the present invention, the waterjet arthroscope further includes a handle 5, and the handle 5 encloses the waterjet assembly 2, and the handle 5 is located between the endoscope module 3 and the pump body assembly 1. The handle 5 is convenient for the doctor to hold the water jet arthroscope, and the water jet arthroscope is easy to operate, and the handle 5 has a fixed water jet assembly 2 to prevent foreign objects from colliding with the water jet assembly 2, thereby causing damage to the water jet arthroscope.

Referring to FIG. 2, in the first embodiment of the present invention, the pump body assembly 1 includes a pump body 11 and a high pressure pipe 12, the pump body 11 has a liquid inlet port and a liquid outlet port, and the liquid inlet port is connected to an external workstation, and one end of the high pressure pipe 12 The liquid outlet is connected, and the other end of the high pressure pipe 12 is connected to the water jet assembly 2. The external workstation passes liquid to the pump body 11, the pump body 11 pressurizes the liquid to a predetermined pressure, and the pump body 11 delivers a predetermined pressure of liquid through the high pressure pipe 12 to the water jet assembly 2.

Referring to FIG. 3 again, it is a schematic diagram of the connection between the pump body assembly 1 and the water jet assembly 2 according to the first embodiment of the present invention. As shown in the figure, in the first embodiment of the present invention, the water jet assembly 2 includes a return pipe 21, a joint 22, an outer pipe 23, a liquid inlet pipe 24, a scraper 25, and a water inlet valve 26. The return pipe 21 is located inside the handle 5, and one end of the return pipe 21 is connected to the high pressure pipe 12. The adapter 22 is connected to the other end of the return pipe 21, and the outer pipe 23 is connected to the adapter 22. The one end of the outer pipe 23 is connected to the endoscope module 3. The one end of the inlet pipe 24 sequentially penetrates the outer pipe 23, the adapter 22 and the return flow. The tube 21 is connected to the other end of the high pressure pipe 12, and the scraper 25 is connected to the other end of the inlet pipe 24, and the scraper 25 corresponds to the outer pipe 23. Referring to FIG. 4 again, it is a schematic view of the doctor blade 23 according to the first embodiment of the present invention. As shown, the doctor blade 25 has a liquid passage 251, the liquid passage 251 is connected to the inlet pipe 24, and the outlet of the liquid passage 251 corresponds to the outer tube 23. The inlet valve 26 is provided in the inlet pipe 24. The inlet valve 26 is opened. At this time, the inlet pipe 24 is in communication with the high pressure pipe 12, the outer pipe 23 is in a communicating state, and the external station passes the liquid to the pump body 11, and the pump body 11 pressurizes the liquid to a predetermined pressure, the pump The body 11 delivers a predetermined pressure of liquid through the high pressure conduit 12 to the inlet tube 24, and the inlet tube 24 delivers a predetermined pressure of liquid to the scraper 23, and the doctor operates the scraper 23 to cut, ablate, peel or remove the tissue of the patient's knee joint. After the liquid ejected by the scraper 23 cuts, ablates, peels off or removes the tissue, the liquid becomes a waste liquid, and the cell tissue and waste liquid which cut, ablate, peel or remove the knee joint are transported to the return tube 21 through the outer tube 23, and the return tube 21 transmits The waste liquid to the waste liquid recovery station does not require a separate liquid output tube, which reduces the economic burden on the patient and reduces the risk of infection in subsequent patients. Moreover, the water knife assembly 2 adopts a water jet knife, the tissue speed of cutting cells is fast, and the operation time is obviously shortened. The water knife assembly 2 has the functions of cutting lines and synchronously sucking the tissue and waste liquid of the knee joint without complications. After the cutting, ablation, peeling or cleaning is completed, the inlet valve 26 is closed. At this time, the inlet pipe 24 and the high pressure pipe 12 are closed, and the outer pipe 23 is closed.

Referring to FIG. 5 and FIG. 6 respectively, two schematic views of the endoscope module 3 according to the first embodiment of the present invention are shown. As shown in the figure, in the first embodiment of the present invention, the endoscope module 3 includes a connecting rod 31, a sheath 32, an image sensing component 33, and a USB connecting line 34. The connecting rod 31 is disposed between the adapter 22 and the water inlet valve 26, and the connecting rod 31 encloses the water jet assembly 2, and the connecting rod 31 fixes the water jet assembly 2. The sheath 32 is connected to the connecting rod 31 through the inlet valve 26. The sheath 32 has a first channel 321, a second channel 322, and a third channel 323. The waterjet assembly 2 extends through the first channel 321, and the cryoablation catheter 42 extends through the second channel 322. The image sensing component 33 extends through the third channel 323. The image sensing component 33 corresponds to the blade 25, and one end of the USB cable 34 is connected to the image sensing component 33, and the other end of the USB cable 34 is connected to the external workstation. The image sensing component 33 includes a camera 331 and an LED lamp 332, and the LED lamp 331 is located at one side of the camera 332. The LED lamp 331 provides a light source for the camera 332 to capture, and the endoscope module 3 transmits the data captured by the camera 331 by using the USB cable 34. The connection mode is stable, and the transmission data is not easily disturbed by the outside. The endoscope module 3 can be repeatedly used for sterilization and sterilization, so as to reduce the production cost of the water jet arthroscope and reduce the economic burden on the patient.

Referring to FIG. 7 and FIG. 8 respectively, two schematic diagrams of the endoscope module 3 according to the second embodiment of the present invention are shown. As shown in the figure, in the second embodiment of the present invention, the endoscope module 3 includes a connecting rod 31, a sheath 32, an image sensing component 33, and a wireless transmitter (not shown). The connecting rod 31 is disposed between the adapter 22 and the water inlet valve 26, and the connecting rod 31 encloses the water jet assembly 2, and the connecting rod 31 fixes the water jet assembly 2. The sheath 32 is connected to the connecting rod 31 through the inlet valve 26. The sheath 32 has a first channel 321, a second channel 322, and a third channel 323. The waterjet assembly 2 extends through the first channel 321, and the cryoablation catheter 42 extends through the second channel 322. The image sensing component 33 extends through the third channel 323. The image sensing component 33 corresponds to the blade 25, the wireless transmitter is electrically connected to the image sensing component 33, and the wireless transmitter is connected to the external workstation. The image sensing component 33 includes a camera 331 and an LED lamp 332, and the LED lamp 331 is located at one side of the camera 332. The difference between the second embodiment and the first embodiment is that the second embodiment uses a wireless transmitter as a signal transmission mode. The wireless transmitter transmits the data captured by the camera 331 to realize big data sharing and ensure the success rate of the operation.

In the third embodiment of the present invention, the manner in which the camera 331 is disposed on the sheath 32 is welding, and the structure of the pump body assembly 1, the water knife assembly 2, the endoscope module 3, and the cryoablation assembly 4 of the present embodiment is the same as that of the embodiment. Therefore, the difference from the first embodiment and the second embodiment is that the connection manner of the camera 331 connecting the sheath 32 is welding. By welding, the camera 331 is connected to the sheath 32 to stabilize, reducing the production time and production cost of the water jet arthroscope. During the use of the water jet arthroscope, the camera 331 and the sheath 32 are not easily loosened.

In the fourth embodiment of the present invention, the manner in which the camera 331 is disposed on the sheath 32 is bonding. The structure of the pump body assembly 1, the water jet unit 2, the endoscope module 3 and the cryoablation unit 4 of the present embodiment is the same as that of the third embodiment, and the difference from the third embodiment is that the camera 331 is connected to the sheath 32. The way is bonding. The camera 321 is fastly connected to the sheath 3, and is convenient for disassembling the camera 331 to connect the sheath 32, thereby reducing the production cost of the enterprise, and is suitable for mass production and application of the waterjet arthroscope.

In the fifth embodiment of the present invention, the manner in which the camera 331 is disposed on the sheath 32 is riveting. The structure of the pump body assembly 1, the water jet unit 2, the endoscope module 3 and the cryoablation unit 4 of the present embodiment is the same as that of the fourth embodiment, and the difference from the fourth embodiment is that the camera 331 is connected to the sheath 32. The method is riveting, and the camera 331 is quickly connected with the sheath 32, which reduces the production cost of the enterprise, and is suitable for mass production and application of the waterjet arthroscope.

In summary, in one or more embodiments of the present invention, the water jet arthroscope of the present invention is easy for a doctor to operate, has less bleeding, quick recovery after surgery, shortens operation time, has high therapeutic effectiveness, and reduces thrombosis, etc. Serious complications reduce the patient's pain, and doctors and observers can view the patient's knee joint image in real time through an external workstation, which can examine the patient's knee joint in detail and increase the safety of the operation.

The above is only an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and changes can be made in the present invention. Any modifications, equivalents, improvements, etc. made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

A waterjet arthroscope, characterized in that it comprises:

Pump body assembly;

a water knife assembly that connects the pump body assembly;

An endoscope module coupled to the waterjet assembly;

a cryoablation assembly comprising: a freeze switch ball valve, a cryoablation catheter and a frozen balloon, the freeze switch ball valve being disposed on the water knife assembly, one end of the cryoablation catheter being connected to an outlet of the freeze switch ball valve, and the other One end penetrates the endoscope module, and the frozen balloon is disposed at the other end of the cryoablation catheter.
The waterjet arthroscope according to claim 1, further comprising a handle that wraps the waterjet assembly and is located between the endoscope module and the pump body assembly.
The waterjet arthroscope according to claim 2, wherein the pump body assembly comprises a pump body and a high pressure pipe, the pump body has a liquid inlet and a liquid outlet, and one end of the high pressure pipe communicates with the liquid. The other end of the mouth is connected to the waterjet assembly.
The waterjet arthroscope according to claim 3, wherein the waterjet assembly comprises a return pipe, a adapter, an outer pipe, an inlet pipe and a scraper, the return pipe being located in the handle and connected at one end thereof. The high pressure pipe, the adapter is connected to the other end of the return pipe, the outer pipe is connected to the adapter, one end of which is connected to the endoscope module, and one end of the liquid inlet pipe is sequentially penetrated The outer tube, the adapter and the return tube are connected to the other end of the high pressure pipe, and the scraper communicates with the other end of the inlet pipe and corresponds to the outer pipe.
A waterjet arthroscope according to claim 4, wherein said scraping blade has a liquid passage, said liquid passage being connected to said inlet pipe, and an outlet of said liquid passage corresponding to said outer pipe.
A waterjet arthroscope according to claim 4, wherein said waterjet assembly further comprises an inlet valve, said inlet valve being disposed in said outer tube.
The waterjet arthroscope according to claim 6, wherein the endoscope module comprises a connecting rod, a sheath, an image sensing component and a USB connecting line, and the connecting rod is disposed on the adapter and Between the inlet valves, and wrapping the waterjet assembly, the sheath is connected to the connecting rod through the inlet valve, the waterjet assembly is located in the sheath, the image sensing component An end of the sheath is disposed corresponding to the waterjet assembly, one end of the USB cable is connected to the image sensing component, and the other end is connected to an external workstation.
The waterjet arthroscope according to claim 6, wherein the endoscope module comprises a connecting rod, a sheath, an image sensing component and a wireless transmitter, and the connecting rod is disposed on the adapter and Between the inlet valves, and wrapping the waterjet assembly, the sheath is connected to the connecting rod through the inlet valve, the waterjet assembly is located in the sheath, the image sensing component And disposed at one end of the sheath corresponding to the waterjet assembly, the wireless transmitter electrically connecting the image sensing component and wirelessly externally.
A waterjet arthroscope according to any one of claims 7 or 8, wherein the image sensing assembly comprises a camera and an LED lamp, the LED lamp being located on one side of the camera.
The waterjet arthroscope according to claim 9, wherein the camera is disposed in the sheath by welding or bonding or riveting.