WO2024131413A1

WO2024131413A1 - Medical resection device and endoscope system

Info

Publication number: WO2024131413A1
Application number: PCT/CN2023/132778
Authority: WO
Inventors: 金莹莹; 王光辉
Original assignee: 微创优通医疗科技（上海）有限公司
Priority date: 2022-12-22
Filing date: 2023-11-21
Publication date: 2024-06-27
Also published as: CN219147788U

Abstract

A medical resection device and an endoscope system. The medical resection device comprises a cutter (10), a sheath tube (20), and a regulating assembly (30). The cutter (10) is arranged at a distal end of the sheath tube (20), and the regulating assembly (30) is at least connected to a proximal end of the sheath tube (20). The regulating assembly (30) comprises a housing (305), a motor (301), an electrical current frequency regulator (302), a fluid regulating valve (303), and an intermediate member (304). The housing (305) has an accommodating cavity and is in communication with an inner cavity of the sheath tube (20). The intermediate member (304) is arranged in the accommodating cavity and the inner cavity of the sheath tube (20) in a penetrating manner. The motor (301), the electrical current frequency regulator (302), and the fluid regulating valve (303) are arranged in the housing (305) at intervals and are each connected to the cutter (10) by means of the intermediate member (304) to adjust displacement of the cutter (10), electrical current frequency received by the cutter (10), and fluid pressure in the cutter (10), respectively. According to the device, the motor (301) is used in place of manpower to apply a driving force to the cutter (10), such that the movement accuracy of the cutter (10) is improved, and the operation efficiency is also improved. At the same time, the motor (301), the electrical current frequency regulator (302), and the fluid regulating valve (303) are all integrated in the regulating assembly (30), thereby improving the convenience of operations, shortening the operation time, and improving the operation efficiency.

Description

Medical resection devices and endoscope systems

Technical Field

The present application relates to the technical field of medical devices, and in particular to a medical resection device and an endoscope system.

Background technique

A medical endoscope is a medical device that can enter the natural cavity of the human body for inspection and treatment. With the continuous development of endoscopic technology, endoscopes play an important role in the detection, diagnosis and removal of early cancer. However, the medical devices used in each key surgical point of endoscopic surgery are different, and the operator needs to pay attention to or switch to different instruments at the same time during the operation, resulting in a long endoscopic operation time. Generally, it takes about 1 to 2 hours to successfully remove a lesion of about 3 cm. In addition, in endoscopic surgery, each instrument relies on manual operation of the operator throughout the process, resulting in low accuracy and poor stability of the instrument implementation.

Therefore, there is an urgent need for a new endoscopic device to improve the efficiency of endoscopic surgery and ensure the accuracy of endoscopic surgery.

Summary of the invention

The purpose of the present application is to provide a medical resection device and an endoscope system to solve at least one of the following problems: how to improve the accuracy of intraoperative resection operations, how to reduce the complexity of intraoperative instrument operations, and how to improve surgical efficiency.

In order to solve the above technical problems, the present application provides a medical resection device, comprising: a cutter, a sheath tube and an adjustment component; the cutter is arranged at the distal end of the sheath tube, and the adjustment component is at least connected to the proximal end of the sheath tube;

Wherein, the regulating component includes a shell, a motor, an electric frequency regulator, a fluid regulating valve and an intermediate piece; the shell has a accommodating cavity and is communicated with the inner cavity of the sheath tube; the intermediate piece is penetrated through the accommodating cavity and the inner cavity of the sheath tube, the motor, the electric frequency regulator and the fluid regulating valve are arranged at intervals in the shell, and are respectively connected to the cutter through the intermediate piece to respectively adjust the displacement of the cutter, the electric frequency received by the cutter and the fluid pressure in the cutter.

Optionally, in the medical resection device, the medical resection device further comprises a protective cover; The protective sleeve is sleeved on the outer surface of the cutter and connected to the distal end of the sheath tube.

Optionally, in the medical resection device, the medical resection device further comprises a position sensor, and the position sensor is arranged on the inner wall of the protective sleeve or the sheath tube to monitor the displacement of the cutter.

Optionally, in the medical resection device, the axial length of the protective sleeve is greater than or equal to the axial length of the cutting knife.

Optionally, in the medical resection device, a limiting structure is provided on the inner wall of the protective sleeve to limit the maximum distance that the cutting knife extends out of the protective sleeve.

Optionally, in the medical resection device, the middle piece includes an adjusting rod; both ends of the adjusting rod are respectively connected to the cutter and the motor, so that the motor pushes and pulls the cutter via the adjusting rod.

Optionally, in the medical resection device, the intermediate piece also includes a wire; the two ends of the wire are respectively connected to the cutter and the electric frequency regulator; wherein the electric frequency regulator is also connected to the electric frequency host to adjust the electric frequency applied by the electric frequency host to the cutter.

Optionally, in the medical resection device, the intermediate piece also includes a catheter; the two ends of the catheter are respectively connected to the cutter and the fluid regulating valve; wherein the cutter has an injection cavity, and the inner cavity of the catheter is connected to the injection cavity; the fluid regulating valve is also connected to the fluid equipment to adjust the pressure of the fluid introduced into the cutter by the fluid equipment.

Optionally, in the medical resection device, the adjustment component also includes a display screen and a plurality of adjustment keys; the display screen and the plurality of adjustment keys are both arranged on the outer surface of the shell; the motor, the electric frequency regulator and the fluid regulating valve are respectively connected to the display screen; and, some of the adjustment keys are connected to the motor to adjust the motor; some of the adjustment keys are connected to the electric frequency regulator to adjust the electric frequency regulator; and some of the adjustment keys are connected to the fluid regulating valve to adjust the fluid regulating valve.

Based on the same concept, the present application also provides an endoscope system, including the medical resection device.

In summary, the present application provides a medical resection device and an endoscope system. The medical resection device comprises: a cutter, a sheath tube and an adjustment component; the cutter is arranged at the distal end of the sheath tube, and the adjustment component is at least connected to the proximal end of the sheath tube; the adjustment component comprises a housing, a motor, an electric frequency regulator, a fluid regulating valve and an intermediate piece; the housing has a containing cavity and is connected to the proximal end of the sheath tube. The inner cavities are interconnected; the intermediate piece is arranged in the inner cavities of the accommodating cavity and the sheath tube, and the motor, the electric frequency regulator and the fluid regulating valve are arranged in the shell at intervals, and are respectively connected to the cutter through the intermediate piece to respectively adjust the displacement of the cutter, the electric frequency received by the cutter and the fluid pressure in the cutter. It can be seen that the medical resection device provided by the present application uses the motor to replace manual application of driving force to the cutter, avoiding the disadvantages of manual operation, improving the accuracy of the cutter movement, and also improving the efficiency of the operation. In addition, the motor, the electric frequency regulator and the fluid regulating valve are all integrated into the adjustment component, which improves the convenience and flexibility of the operator's operation, further shortens the operation time, and improves the efficiency of the operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross-sectional view of a medical resection device in an embodiment of the present application.

FIG. 2 is a schematic diagram of the structure of a medical resection device in an embodiment of the present application.

Wherein, the accompanying drawings are marked as follows:
10-cutter; 101-injection cavity; 102-second protruding structure;
20-sheath;
30-adjustment assembly; 301-motor; 302-electric frequency regulator; 303-fluid regulating valve; 304-middle piece; 3041-adjustment rod; 3042-conduit; 3043-wire; 305-housing; 306-display screen; 307-adjustment key; 3071-first adjustment key; 3072-second adjustment key; 3073-third adjustment key; 3074-fourth adjustment key; 3075-fifth adjustment key; 3076-sixth adjustment key;
40-protective cover; 401-first protruding structure;
50- Position sensor.

Detailed ways

In order to make the purpose, advantages and features of the present application clearer, the present application is further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present application. In addition, the structure shown in the drawings is often part of the actual structure. In particular, the various drawings need to show different focuses, and sometimes different scales are used. It should also be understood that, unless otherwise specified or indicated, the terms "first", "second", "third", etc. in the specification are only used to distinguish between the various components, elements, steps, etc. in the specification, and are not used to represent the logic between the various components, elements, and steps. Logical relationship or sequential relationship, etc. Also, the definitions of "proximal end" and "distal end" in this article are: "distal end" usually refers to the end of the medical device that first enters the patient's body during normal operation, and "proximal end" usually refers to the end of the medical device that is close to the operator during normal operation.

Please refer to Figure 1. This embodiment provides a medical resection device, including: a cutter 10, a sheath tube 20 and an adjustment component 30; the cutter 10 is arranged at the distal end of the sheath tube 20, and the adjustment component 30 is at least connected to the proximal end of the sheath tube 20; wherein the adjustment component 30 includes a motor 301, an electric frequency regulator 302, a fluid regulating valve 303, an intermediate piece 304 and a shell 305; the shell 305 has a receiving cavity and is communicated with the inner cavity of the sheath tube 20; the intermediate piece 304 is penetrated in the receiving cavity and the inner cavity of the sheath tube 20, the motor 301, the electric frequency regulator 302 and the fluid regulating valve 303 are arranged in the shell 305 at intervals, and are respectively connected to the cutter 10 through the intermediate piece 304, so as to respectively adjust the displacement of the cutter 10, the electric frequency received by the cutter 10 and the fluid pressure in the cutter 10.

It can be seen that the medical cutting device provided in this embodiment uses the motor 301 to replace manual operation to apply driving force to the cutter 10, avoiding the disadvantages of manual operation, improving the accuracy of the movement of the cutter 10, and improving the efficiency of the operation. In addition, the motor 301, the electric frequency regulator 302 and the fluid regulating valve 303 are all integrated into the regulating component 30, which improves the convenience of the operator's operation, further shortens the operation time, and improves the efficiency of the operation.

The medical resection device provided in this embodiment is described in detail below with reference to FIGS. 1 to 2 .

Please continue to refer to Figure 1. The medical resection device includes: a cutter 10, a sheath 20 and an adjustment component 30. The cutter 10 is used to mark and cut the diseased tissue. Preferably, the cutter 10 is a high-frequency electric knife dedicated to endoscopes, which can mark the diseased tissue at a low frequency and cut the diseased tissue at a high frequency. The sheath 20 is a delivery pipeline that can move in the cavity of a biological body or an instrument to support and transport the cutter 10 to the lesion. Preferably, the material of the sheath 20 is a biopolymer material with a certain flexibility. The adjustment component 30 is used to adjust the motion parameters of the cutter 10 and the parameters of other devices that cooperate with the cutter 10 during the operation. Further, the cutter 10 is arranged at the distal end of the sheath 20 to be close to the lesion; part of the structure in the adjustment component 30 is arranged at the proximal end of the sheath 20 to facilitate flexible operation by the operator.

It should be noted that in existing endoscopic surgeries, the operator is required to manually advance the cutter 10. Due to the unevenness of manual force application, the application of manual force and the movement of the cutter 10 are often not synchronized, making it difficult for the operator to accurately grasp the displacement of the cutter 10, and even causing the cutter 10 to break. rupture, seriously affecting the safety and success rate of the operation. In addition, the existing endoscopic equipment is set on the main unit for adjusting other surgical parameters such as electric frequency, which is separated from the device for operating the cutter 10. Therefore, while the operator is operating the cutter 10, he will also divert his attention to other devices to adjust parameters as needed, which is extremely inconvenient for the operator and has a certain impact on the safety of the operation. In this regard, the medical resection device provided in this embodiment overcomes the above-mentioned technical problems. Please refer to Figures 1 and 2, the adjustment component 30 includes: a motor 301, an electric frequency regulator 302 and a fluid regulating valve 303. The motor 301 is used to apply a driving force to the cutter 10 to replace manual operation and overcome the disadvantages of manual operation. The electric frequency regulator 302 and the fluid regulating valve 303 are integrated into the regulating assembly 30 together with the motor 301, so that when the operator drives the cutter 10 through the motor 301, the operator can synchronously adjust the electric frequency received by the cutter 10 and the fluid pressure in the cutter 10 without switching multiple devices, thereby improving surgical efficiency and flexibility and reducing surgical risks.

Furthermore, the adjustment component 30 also includes an intermediate piece 304. Part of the structure of the intermediate piece 304 is accommodated in the sheath tube 20, and is used to connect the motor 301, the electric frequency regulator 302 and the fluid regulating valve 303 to the cutter 10 respectively. As shown in FIG1 , the intermediate piece 304 includes an adjustment rod 3041, a catheter 3042 and a wire 3043. The distal end of the adjustment rod 3041 is connected to the proximal end of the cutter 10, and the proximal end of the adjustment rod 3041 is connected to the motor 301. Preferably, the adjustment rod 3041 is a metal wire or a metal tube, and has a certain rigidity, so that the motor 301 pushes and pulls the cutter 10 through the adjustment rod 3041 to drive the cutter 10 to produce displacement. The distal end of the catheter 3042 is connected to the proximal end of the cutter 10, and the proximal end of the catheter 3042 is connected to the fluid regulating valve 303. It should be noted that when the diseased tissue is concave, it is not conducive to resection. It is necessary to inject liquid or gas to make the diseased tissue swell to improve the convenience of resection. Therefore, the cutter 10 in this embodiment has an injection cavity 101, and the inner cavity of the catheter 3042 is connected to the injection cavity 101. And the other end of the fluid regulating valve 303 is connected to the fluid device; the fluid provided by the fluid device can be injected into the diseased tissue through the fluid regulating valve 303, the catheter 3042 and the injection cavity 101 in sequence. Exemplarily, the fluid is physiological saline. During the operation, the cutter 10 cuts an injection port on the diseased tissue, and the physiological saline in the cutter 10 flows into the diseased tissue through the injection port, so that the diseased tissue swells, which is convenient for subsequent marking and resection. Among them, the fluid regulating valve 303 can adjust the pressure of the fluid introduced into the cutter 10 by the fluid device to meet different surgical needs. The distal end of the wire 3043 is connected to the proximal end of the cutter 10, The proximal end of the wire 3043 is connected to the electric frequency regulator 302. The wire 3043 referred to in this embodiment is not limited to a wire group formed by one wire or two or more wires in the art, and can be selected according to the specific type of the cutter 10. Further, the electric frequency regulator 302 is also connected to the electric frequency host. The electric frequency host is used to apply electric frequency to the cutter 10, and the electric frequency regulator 302 is used to adjust the frequency range so that the cutter 10 marks the diseased tissue at a low electric frequency and peels off the diseased tissue at a high electric frequency. Further, this embodiment does not limit the specific setting positions of the adjustment rod 3041, the catheter 3042 and the wire 3043. As shown in FIG1, the three can be separated and connected to the cutter 10 respectively. Exemplarily, the adjustment rod 3041 is a tube body, which is sleeved on the catheter 3042; and the wire 3043 is embedded in the sheath 20, or wrapped around the outer periphery of the adjustment rod 3041.

Please continue to refer to Figures 1 and 2. The adjustment component 30 also includes a housing 305, a display screen 306 and a plurality of adjustment keys 307. The proximal end of the sheath tube 20 is connected to the housing 305, and the housing 305 has a receiving cavity, which is connected to the inner cavity of the sheath tube 20. The middle piece 304 is arranged in the receiving cavity and the inner cavity of the sheath tube 20. That is, part of the structure of the middle piece 304 extends into the receiving cavity, and the remaining structure extends into the inner cavity of the sheath tube 20. The display screen 306 and the plurality of adjustment keys 307 are all arranged on the outer surface of the housing 305; the motor 301, the electric frequency regulator 302 and the fluid regulating valve 303 are all accommodated in the housing 305 and are respectively connected to the display screen 306; the connection mode can be wireless connection or wired connection. Among them, the display screen 306 can display the direction and speed of the motor 301, the electric frequency and the fluid pressure. Further, some of the adjustment keys 307 are connected to the motor 301 to adjust the motor 301; some of the adjustment keys 307 are connected to the electric frequency regulator 302 to adjust the electric frequency regulator 302; and some of the adjustment keys 307 are connected to the fluid regulating valve 303 to adjust the fluid regulating valve 303. Exemplarily, the adjustment component 30 is provided with six adjustment keys 307, namely, a first adjustment key 3071, a second adjustment key 3072, a third adjustment key 3073, a fourth adjustment key 3074, a fifth adjustment key 3075 and a sixth adjustment key 3076. The first adjustment key 3071 and the second adjustment key 3072 are connected to the motor 301 to respectively adjust the motor 301 to drive the cutter 10 to advance and retreat, and/or adjust the corresponding displacement. The third adjustment key 3073 and the fourth adjustment key 3074 are connected to the electric frequency regulator 302 to respectively switch high and low frequencies and/or adjust the electric frequency. The fifth adjustment key 3075 and the sixth adjustment key 3076 are connected to the fluid regulating valve 303 to respectively increase and decrease fluid pressure. Based on this, the operator can directly adjust the pressure of the fluid through each adjustment key. The adjustment key 307 is used to adjust various parameters, and the operation is convenient. It should be noted that the present embodiment does not limit the specific structure of the adjustment key 307, and it can be a knob-type adjustment key, a button-type adjustment key, or a sliding-type adjustment key.

In order to protect the cutter 10 and prevent the cutter 10 from damaging other tissues or instruments during the transportation and withdrawal process, the medical resection device also includes a protective sleeve 40. The protective sleeve 40 is sleeved on the outer surface of the cutter 10 and connected to the distal end of the sheath 20. Preferably, the protective sleeve 40 is detachably connected to the sheath 20. Exemplarily, the proximal periphery of the protective sleeve 40 is provided with a threaded structure, and the distal inner wall of the sheath 20 is provided with a corresponding threaded structure, and the proximal end of the protective sleeve 40 can extend into the distal end of the sheath 20 and engage with the thread. Further, the axial length of the protective sleeve 40 is greater than or equal to the axial length of the cutter 10, so that the cutter 10 can be completely accommodated in the protective sleeve 40, then during the transportation and withdrawal process, the cutter 10 is completely located in the protective sleeve 40, and will not contact other tissues or instruments, thereby avoiding damage to the cutter 10 and scratching other tissues or instruments. Among them, the inner wall of the protective cover 40 is provided with a limiting structure to limit the maximum distance that the cutter 10 extends out of the protective cover 40. Exemplarily, as shown in FIG1 , the inner wall of the protective cover 40 has a first protruding structure 401 as the limiting structure. Correspondingly, the proximal end of the cutter 10 has a second protruding structure 102. When the cutter 10 moves toward the distal end under the push of the motor 301, and when the second protruding structure 102 contacts the first protruding structure 401, the cutter 10 cannot continue to move toward the distal end under the obstruction of the first protruding structure 401, which limits the maximum extension distance of the cutter 10 and prevents the cutter 10 from detaching from the protective cover 40. At the same time, the limiting structure can also stabilize the position of the cutter 10 to prevent the cutter 10 from moving abnormally. It should be noted that this embodiment does not limit the specific form of the limiting structure, and a guide rail of a fixed length can also be provided on the inner wall of the protective cover 40 to serve as the limiting structure. The second protruding structure 102 is stuck in the guide rail and can slide relative to the guide rail, so that when the second protruding structure 102 slides to the far end of the guide rail, the cutter 10 is blocked from continuing to move toward the far end.

In order to further accurately grasp the displacement of the cutter 10, the medical resection device further includes a position sensor 50. The position sensor 50 can be disposed on the inner wall surface of the protective cover 40 or the sheath tube 20, or can be embedded in the inner wall to monitor the displacement of the cutter 10. The position sensor 50 is wirelessly connected to the display screen 306 so that the actual displacement of the cutter 10 detected by the position sensor 50 can be displayed to the operator in real time, so that the operator can grasp the displacement of the cutter 10. 10. The specific location of the vehicle.

Based on the same concept, this embodiment also provides an endoscope system, including the medical resection device. Based on this, in endoscopic surgery, the endoscope is first used to determine the location of the lesion, and then the sheath 20 is used to transport the cutter 10 to the location of the lesion. In the process of transportation, the sheath 20 extends along the inner cavity of the delivery tube of the endoscope, and the cutter 10 is hidden in the protective cover 40. Then, the position and angle of the distal end of the endoscope are adjusted to approach the lesion tissue and determine the operating position. Then, the operator adjusts the first adjustment key 3071 so that the motor 301 drives the cutter 10 to smoothly extend out of the protective cover 40. At the same time, the operator can see the displacement information fed back by the position sensor 50 through the display screen 306 to determine the specific displacement of the cutter 10. When the cutter 10 is extended to the maximum distance, that is, when the limit structure blocks the cutter 10, the motor 301 can stop automatically. Then, the operator can operate the fourth adjustment key 3074 to make the electric frequency host apply a low electric frequency to the cutter 10 to mark the diseased tissue. Also, adjust the fifth adjustment key 3075 and the sixth adjustment key 3076 as needed to make the fluid device inject fluid into the injection cavity 101 of the cutter 10 and make the diseased tissue bulge. Secondly, adjust the third adjustment key 3073 to make the electric frequency host apply a high electric frequency to the cutter 10 to peel off the diseased tissue. Finally, operate the second adjustment key 3072 to retract the cutter 10 into the protective cover 40, and when the position sensor 50 detects that the cutter 10 returns to the initial position, the motor 301 can stop automatically. After the cutter 10 is completely placed in the protective cover 40, the cutter 10 is withdrawn along the inner wall of the output tube of the endoscope, and the instrument is replaced later to remove the peeled tissue. It should be noted that, in actual operation, the motor 301, the electric frequency regulator 302 and the fluid regulating valve 303 may be adjusted repeatedly as needed.

In summary, the medical resection device and endoscope system provided in this embodiment adopts the motor 301 to replace manual operation to apply driving force to the cutter 10, thereby avoiding the disadvantages of manual operation, improving the accuracy and stability of the movement of the cutter 10, and improving the efficiency of the operation. In addition, the motor 301, the electric frequency regulator 302, and the fluid regulating valve 303 are all integrated into the regulating component 30. During the operation, the operator only needs to operate the regulating component 30, without having to pay attention to multiple devices at the same time, which improves the convenience and flexibility of the operator's operation, further shortens the operation time, and improves the efficiency of the operation.

In addition, it should be recognized that although the present application has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present application. For any technician familiar with the art, without departing from the Within the scope of the technical solution of this application, the technical content disclosed above can be used to make many possible changes and modifications to the technical solution of this application, or modified into equivalent embodiments with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application still falls within the scope of protection of the technical solution of this application.

Claims

A medical excision device, characterized in that it comprises: a cutter, a sheath tube and an adjustment component; the cutter is arranged at the distal end of the sheath tube, and the adjustment component is at least connected to the proximal end of the sheath tube;

Wherein, the regulating component includes a shell, a motor, an electric frequency regulator, a fluid regulating valve and an intermediate piece; the shell has a accommodating cavity and is communicated with the inner cavity of the sheath tube; the intermediate piece is penetrated through the accommodating cavity and the inner cavity of the sheath tube, the motor, the electric frequency regulator and the fluid regulating valve are arranged at intervals in the shell, and are respectively connected to the cutter through the intermediate piece to respectively adjust the displacement of the cutter, the electric frequency received by the cutter and the fluid pressure in the cutter.
The medical resection device according to claim 1 is characterized in that it further comprises a protective sleeve; the protective sleeve is sleeved on the outer surface of the cutter and connected to the distal end of the sheath.
The medical resection device according to claim 2 is characterized in that the medical resection device also includes a position sensor, which is arranged on the inner wall of the protective sleeve or the sheath to monitor the displacement of the cutter.
The medical resection device according to claim 2, characterized in that the axial length of the protective sleeve is greater than or equal to the axial length of the cutting knife.
The medical resection device according to claim 2, characterized in that a limiting structure is provided on the inner wall of the protective sleeve to limit the maximum distance that the cutter extends out of the protective sleeve.
The medical resection device according to claim 1 is characterized in that the intermediate piece comprises an adjusting rod; two ends of the adjusting rod are respectively connected to the cutter and the motor, so that the motor pushes and pulls the cutter through the adjusting rod.
The medical resection device according to claim 1 is characterized in that the intermediate piece also includes a wire; the two ends of the wire are respectively connected to the cutter and the electric frequency regulator; wherein the electric frequency regulator is also connected to the electric frequency host to adjust the electric frequency applied by the electric frequency host to the cutter.
The medical resection device according to claim 1 is characterized in that the intermediate piece also includes a catheter; the two ends of the catheter are respectively connected to the cutter and the fluid regulating valve; wherein the cutter has an injection cavity, and the inner cavity of the catheter is connected to the injection cavity; the fluid regulating valve is also connected to a fluid device to adjust the pressure of the fluid introduced into the cutter by the fluid device.
The medical resection device according to claim 1 is characterized in that the adjustment component also includes a display screen and a plurality of adjustment keys; the display screen and the plurality of adjustment keys are both arranged on the outer surface of the shell; the motor, the electric frequency regulator and the fluid regulating valve are respectively connected to the display screen; and some of the adjustment keys are connected to the motor to adjust the motor; some of the adjustment keys are connected to the electric frequency regulator to adjust the electric frequency regulator; and some of the adjustment keys are connected to the fluid regulating valve to adjust the fluid regulating valve.
An endoscope system, characterized in that the endoscope system comprises the medical resection device according to any one of claims 1 to 9.