JP2023016660A - medical device - Google Patents

Abstract

To provide a medical device with an outer tube, an operation portion, and a control portion.SOLUTION: An operation portion 20 is at least partially located in an outer tube 10. A control portion 30 has a control portion channel in communication with the outer tube along a first direction D1. The control portion includes a control module; and the control module includes a suction control portion, a suction port actuator, and a switching unit. The suction control portion has a stopper portion facing the channel and is configured to move along a second direction. The suction port actuator is located at a side opposite to the suction control portion and the channel, and driven by the suction control portion. The switching unit is configured to switch the work status of the operation portion.SELECTED DRAWING: Figure 1A

Description

The present invention relates to medical devices, and moreover, the present invention relates to medical devices that can perform aspiration, flushing and debridement without changing instrumentation devices.

Traditional surgery involves the use of suction/flushing devices to aspirate contaminated fluids that obscure tissue, and the use of endoscopes and debridement devices to view inside the tissue. Therefore, it requires two-handed operation, and the device must be changed frequently. This complicates the work of the surgeon considerably.

Also, cauterization requires removal of the debridement device or suction/flushing device prior to insertion of the cauterization device. This also complicates the operation flow of the surgeon.

Therefore, it is desirable to have the ability to perform multiple tasks in a single medical device, thereby reducing the frequency with which surgeons change surgical devices and ensuring the safety of patients undergoing surgery.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a medical device that is easy for the surgeon to operate and has a safety activation mechanism.

The present invention provides a medical device that includes an outer tube, an operating section, and a control section. The outer tube extends in a first direction and has opposed first and second ends. At least a part of the operation part is located inside the outer tube and protrudes outside the second end of the outer tube. The control portion has a first end and a second end facing each other and in communication with the channel, the second end of the control portion being coupled to the first end of the outer tube thereby connecting to the channel. and the outer tube are communicated with each other in the first direction. The controller has a control module, the control module has a suction controller, a suction port actuator and a switching unit. The suction control part has a stopper part facing the channel side and is provided movably along a second direction different from the first direction. A suction port actuator is located on the opposite side of the channel from the suction control and is driven by the suction control. The switching unit is arranged to be releasably activated by the suction control to switch the working state of the operating part.

When the suction control is in the first position, the control module deactivates suction within the channel of the suction port actuator and deactivates the actuator by the switching unit.

When the aspiration control is in the second position, the control module enables actuation of aspiration within the channel by the aspiration port actuator.

When the suction control is in the third position, the control module enables activation of the suction in the channel by the suction port actuator and activates the switching unit to enable the actuator. , the stopper portion is at least partially recessed into the channel.

The arrangement allows multiple tasks to be performed with a single medical device, in particular the task of aspirating blood while performing debridement, thereby ensuring good visibility during surgery. and the combination of the stopper and the placement of the external device can limit the movement of the suction control from the second position to the third position.

1 shows an exploded view of one embodiment of a medical device according to the invention; FIG. 1 shows a schematic plan view of an internal structure of an embodiment of a medical device according to the present invention; FIG. FIG. 10 is a schematic partial cross-sectional view of the control unit in one embodiment of the medical device according to the present invention when the suction control unit is positioned at the first position; FIG. 10 is a partial cross-sectional schematic diagram of the control unit in the case where the suction control unit is positioned at the second position in one embodiment of the medical device according to the present invention; FIG. 10 is a partial cross-sectional schematic diagram of the control unit in the case where the suction control unit is located at the third position in one embodiment of the medical device according to the present invention; Fig. 10 is a schematic diagram showing that movement of the suction control part from the second position to the third position is prevented by a stopper part in one embodiment of the medical device according to the present invention; 1 shows a schematic plan view of the internal structure of an embodiment of the medical device according to the present invention with an external external device inserted; FIG. FIG. 12B shows a schematic cross-sectional view of blocking movement of the suction port actuator from the second position to the third position when an external instrument is inserted. FIG. 11 illustrates a rear view of one embodiment of the medical device before external equipment is inserted; FIG. 10 illustrates a back view of one embodiment of the medical device after external instruments have been inserted; FIG. 12 shows an exploded view of an alternative embodiment of the medical device; Fig. 3 shows a three-dimensional schematic diagram of a modified embodiment of the medical device;

Various embodiments are described below, and those skilled in the art should readily understand the spirit and principles of the present invention when referring to the description in conjunction with the drawings. However, although a number of specific examples are specifically described herein, these examples are intended to be illustrative only and in any respect to be considered restrictive or exhaustive. shouldn't. Therefore, various variations and modifications to this invention will be apparent and readily accomplished by those skilled in the art without departing from the spirit and principles of this invention.

1A and 1B, which respectively show an exploded view and a schematic plan view of the internal structure of an embodiment of a medical device 1 according to the present invention. As shown in FIGS. 1A and 1B, a medical device 1 according to the present invention includes an outer tube 10, an operating section 20, a control section 30, and a casing 40. As shown in FIGS. The outer tube 10 is provided to extend in the first direction D1 and has a first outer tube end 10A and a second outer tube end 10B that face each other. When using the medical device 1, the first end 10A of the outer tube is relatively facing the operator and the second end 10B of the outer tube is relatively away from the operator. The operation part 20 is provided inside the outer tube 10 so as to protrude from the second end 10B of the outer tube. Therefore, when the medical device 1 is used, at least a portion of the operation section 20 is positioned inside the outer tube 10 so as to perform operation operations such as excision and debridement on a surgical target. By way of example, in this embodiment the operator 20 may include a blade for performing debridement tasks.

In this embodiment, at least a portion of the controller 30 is located inside the casing 40 . The control portion 30 has a first handle end 30A and a second handle end 30B that face each other such that when the medical device 1 is in use, the first handle end 30A and the second handle end 30A are oriented toward each other. 30B are directions toward and away from the operator, respectively. Here, a channel 31 is formed between the handle first end 30A and the handle second end 30B so that the handle first end 30A and the handle second end 30B are held together. communicate. The second end 30B of the handle is coupled to the first end 10A of the outer tube, thereby allowing the channel 31 and the outer tube 10 to communicate with each other along the first direction D1.

Next, the controller 30 includes a control module 300 . Furthermore, in this embodiment, the control module 300 includes at least one suction control 310 , a suction port actuator 320 , a switching unit 330 , a flush control 340 and a flush port actuator 350 . Here, the suction control section 310 and the rinse control section 340 are provided adjacent to each other so as to be movable along the second direction D2, and the switching unit 330 is electrically connected to the operation section 20. By doing so, the work state of the operation unit 20 is switched (for example, the work of the operation unit 20 is driven or stopped). The second direction D2 is a direction different from the first direction D1, such as a direction perpendicular to the first direction D1, but is not limited thereto. The trajectory along which the suction control unit 310 and the washing control unit 340 move should intersect the channel 31 . Aspiration port actuator 320 and flush port actuator 350 are located on opposite sides of channel 31 from aspiration control 310 and flush control 340, respectively, and aspiration and flushing are effected into channel 31 by aspiration control 310 and flush control 340, respectively. be implemented.

2A, 2B and 2C, which illustrate, respectively, the suction control unit 310 in the first position and the second position in one embodiment of the medical device according to the present invention. 3A and 3B show partial cross-sectional schematic views of the control unit 30 when positioned at a position and a third position, where the first position, the second position and the third position are aligned along the second direction D2. on the line, approaching the channel 31 in turn. In this embodiment, as shown in FIGS. 2A, 2B and 2C, the suction control portion 310 includes a stopper portion 311 facing the channel 31 (eg, along the second direction D2) and a stopper portion 311. and projections 312 projecting in different directions (eg, along the first direction D1). The protrusion 312 is preferably collinear with at least part of the switching unit 330 in the second direction D2, in other words, the switching unit 330 is located in the movement path of the protrusion 312 . Thereby, the switching unit 330 is releasably driven by the suction control section 310 to switch the working state of the operating section 20 . When the suction control part 310 moves along the second direction D2 to the third position (FIG. 2C), at least part of the protrusion 312 contacts or presses against the switching unit 330, which can activate the switching unit 330. can.

Specifically, in this embodiment, when suction control 310 is in a first position (FIG. 2A), control module 300 causes suction port actuator 320 to deactivate suction within channel 31 . At the same time, the operation of the operation unit 20 is stopped by the switching unit 330 . By way of example, in this embodiment, the suction control part 310 is arranged to be located inside the first channel P1 extending at least partially in the second direction D2, and the upper O-seal ring 313 , a lower O-seal ring 314 and an extension 315 positioned between the upper O-seal ring 313 and the lower O-seal ring 314 and movable along the first channel P1. The portions provided with the upper O-seal ring 313 and the lower O-seal ring 314 are connected to the upper and lower ends of the extension portion 315, respectively, so that the upper O-seal ring 313 and the lower O-seal ring The movement of 314 is interlocked. Alternatively, the portion of the extension 315 passing through the channel 31 may be recessed on one side or designed to avoid the channel 31 to keep the channel 31 from clogging. When the suction control unit 310 is located at the first position (FIG. 2A), the upper O-seal ring 313 and the pipe wall of the first channel P1 are kept in close contact, and the lower O-seal is maintained. Since the ring 314 and the pipe wall of the first channel P1 are kept in close contact, the suction valve 321 of the suction port actuator 320 (by the lower O seal ring 314 and the pipe wall of the first channel P1) ) is maintained closed and the actuation of suction within the channel 31 can be stopped.

When suction control 310 is in the second position (FIG. 2B), control module 300 allows suction port actuator 320 to activate suction within channel 31 . For example, control module 300 opens suction valve 321 and activates suction by moving suction control 310 from a first position (FIG. 2A) to a second position (FIG. 2B), and When the suction control 310 moves from the second position (FIG. 2B) to the first position (FIG. 2A), the suction port actuator 320 deactivates the suction by closing the suction valve 321 . Furthermore, in this embodiment, when the suction control 310 moves from the first position (FIG. 2A) to the second position (FIG. 2B), the tube wall below the channel 31 of the first channel P1 increases toward the suction port actuator 320, so as the extension 315 moves downward, the tight fit between the lower O-seal ring 314 and the wall of the first channel P1 gradually breaks. As a result, the suction valve 321 is opened. On the other hand, since the width of the portion of the first channel P1 above the channel 31 is relatively uniform, the suction control 310 moves from the first position (FIG. 2A) to the second position (FIG. 2B). When doing so, the tightness between the upper O seal ring 313 and the pipe wall of the first channel P1 can be maintained. In this embodiment, when the suction control part 310 is in the second position (FIG. 2B), the stopper part 311 can penetrate to the first depth d1 of the channel 31, but the invention is limited to this. not, and depending on the actual installation and position of the stopper portion 311, the stopper portion 311 may be located outside the channel 31. Note that the structural principle of driving the suction port actuator 320 by the suction control unit 310 in the present invention is not limited to this, and the suction port actuator 320 can be opened or closed according to the position of the suction control unit 310. should be placed in

In this embodiment, the flush control part 340 is arranged such that it is at least partly located in the second channel P2 extending parallel to the first channel P1 along the second direction D2, It includes an O-seal ring 341, a lower O-seal ring 342, and an extension 343 located between the upper O-seal ring 341 and the lower O-seal ring 342 and moving along the second channel P2. The second channel P2 may be identical or similar in structure to the first channel P1, so that tight contact is maintained between the upper O-seal ring 341 and the tube wall of the second channel P2. At the same time, the relative position between the lower O-seal ring 342 and the pipe wall of the second channel P2 changes as the extension part 343 moves. When tight contact is made between the lower O-seal ring 342 and the wall of the second channel P2, flushing in the channel 31 by the flushing port actuator 350 is stopped, but the lower O-seal ring 342 and the second channel P2 are closed. When the close contact with the pipe wall of channel P2 is released, flushing operation in channel 31 by flushing port actuator 350 becomes possible. However, the design of flush control 340 and flush port actuator 350 in the present invention is not so limited, and other flush system designs may be employed.

Next, when suction control 310 is in the third position (see FIG. 2C), control module 300 enables suction port actuator 320 to activate suction within channel 31 and control portion 20 to operate. and the stopper portion 311 is at least partially recessed into the channel 31 . In other words, if another device enters the channel 31, the stopper portion 311 is prevented from moving downward, so the suction control portion 310 cannot move to the third position. Furthermore, in this embodiment, when the suction control part 310 is located in the third position (see FIG. 2C), the stopper part 311 can penetrate to the second depth d2 of the channel 31 and the second depth d2. is greater than the first depth d1. Specifically, when the suction control unit 310 moves from the second position (FIG. 2B) to the third position (FIG. 2C), the pressure between the upper O-seal ring 313 and the pipe wall of the first channel P1 and the lack of tightness between the lower O seal ring 314 and the pipe wall of the first channel P1, the control module 300 is able to keep the suction valve 321 open. At least a portion of the projection 312 drives the switching unit 330 to enable the operating portion 20 when in contact with the switching unit 330 . For example, as shown in FIGS. 1B and 2A-2C, the control module 300 further includes a motor 360 that provides power to the operating unit 20, and a cable 361 that electrically connects the motor 360 and the switching unit 330. It's okay. Thereby, when the suction control part 310 is located in the third position (FIG. 2C), the switching unit 330 activates the motor 360 to switch the operation part 20 to the working state. However, the structure of the suction port actuator 320 and the principle of driving the suction port actuator 320 or the switching unit 330 are not limited to these. The suction port actuator 320 or the switching unit 330 may be driven by the suction port actuator 320 , such as by allowing the suction port actuator 330 to be wirelessly connected to a driver inside the direct control unit 20 .

This makes it very convenient for the surgeon to perform tasks such as aspiration and debridement with a single aspiration port actuator 320 (which may, for example, be a button protruding from the medical device 1). In addition, since the suction operation is continued when debridement or other work is performed by the operation unit 20, even if bleeding occurs due to surgery on a region such as the brain, the blood can be sucked as quickly as possible. and ensure good visibility. Since the suction control section 310 has the stopper section 311, the suction port control section 310 may move to the third position unintentionally. Activation of manipulator 20 can be activated to prevent or reduce trauma to the surgical site or to the entrapped instrument. Further, referring to FIG. 2D, FIG. 2D illustrates that movement of the suction control portion 310 from the second position to the third position is prevented by the stopper portion 311 in one embodiment of the medical device according to the present invention. shows a schematic diagram of As shown in FIG. 2D, when the external device 50 enters between the suction control 310 and the suction port actuator 320 in the channel 31, the suction control 310 is pushed from the second position to the third position. When trying to move, the stopper part 311 interferes with the external device 50 that has entered, and cannot move downward, so that the suction control part 310 is stopped so as not to move freely to the third position. Related examples are further described below.

3A and 3B, FIG. 3A shows a schematic plan view of the internal structure of an embodiment of the medical device 1 according to the present invention, in which an external external device 50 is inserted, and FIG. 2B shows a schematic cross-sectional view of the movement of the aspiration control portion 310 from the second position (see FIG. 2B) to the third position (see FIG. 2C) is blocked when the is inserted. Specifically, as shown in FIG. 3A, the external instrument 50 may be, for example, an ablation device (electrocautery), and the length of the external instrument 50 preferably extends from the first end 30A of the handle. The external device 50 protrudes from the second end 10B of the outer tube by being longer than the length between the second end 10B of the outer tube (that is, the total length of the medical device 1 in the first direction D1). , to perform a procedure such as cauterization while an operator can easily withdraw the external instrument 50 from the first end 30A of the handle. As described above, when the medical device 1 according to the present invention and the external device 50 are used in combination, the work efficiency of surgery can be improved because the devices simultaneously have means such as suction, flushing, debridement, and cauterization. However, the present invention is not limited to this, for example, the external device 50 is not limited to a cautery device (electrocautery), and in another embodiment, the flush control unit 340 and the flush port can be configured according to actual needs. The actuator 350 and the like may be omitted. The medical device 1 according to the present invention is not limited to the configuration described above.

3C and 3D, which show rear views of one embodiment of medical device 1 before and after insertion of external device 50, respectively. In one embodiment of the invention, as shown in FIG. 3C, diameter DM1 of channel 31 ranges from 1.0 mm to 4.0 mm, and diameter DM2 of external device 50 is 0 mm, as shown in FIG. 5 mm or more and less than the diameter DM1, and preferably the diameter DM2 is in the range of 0.5 mm to 2.0 mm. If the diameter DM1 is in the range of 1.0 mm to 4.0 mm, inserting an external device 50 having a diameter DM2 greater than or equal to 0.5 mm causes the stopper portion 311 to move to the second depth d2 of the channel 31. movement of the suction control portion 310 from the second position (see FIG. 2B) to the third position (see FIG. 2C) can be prevented. As a result, when simply performing a suction operation, by inserting the suction control unit 310 into the channel 31, the operation of the operation unit 20 is erroneously activated, resulting in unexpected damage to other parts or devices that have entered. situation can be further prevented. However, the present invention is not limited to this. For example, even if the diameters DM1 and DM2 are not within the above range, the second position ( 2B) to a third position (see FIG. 2C).

Specifically, the diameter DM1 of the channel 31 is preferably greater than the diameter DM2 of the external device 50 and not more than eight times the diameter DM2 (i.e., diameter DM2 < diameter DM1 ≤ 8 x diameter DM2). , about twice the diameter DM2 (2×diameter DM2). If the diameter DM1 and the diameter DM2 satisfy the above relationship, the stopper portion 311 can be restricted from entering the channel 31 to the second depth d2, and the second position (see FIG. 2B) to the third position can be restricted. (see FIG. 2C) can be blocked.

4A and 4B, which respectively show an exploded view and a three-dimensional schematic view of a modified embodiment of the medical device 1. FIG. As shown in FIGS. 4A and 4B, in this embodiment the medical device 1 can optionally include elements such as an introducer 60, an image extraction unit 70 and a display 80. FIG. Introducer 60 has a first introducer end 60A and a second introducer end 60B open opposite each other such that when medical device 1 is in use, introducer first end 60A is open. faces the operator (eg, the surgeon) and the second end 60B of the introducer faces the patient undergoing surgery. Here, the second end 10B of the outer tube is preferably provided so that at least a portion thereof protrudes from the second end 60B of the introducer. By providing the introducer 60, it is possible to prevent the medical device 1 from colliding with the patient's tissue or the like when the medical device 1 is inserted into the patient's body.

Note that the image extraction unit 70 may be, for example, a camera positioned at a portion protruding from the second end 10B of the outer tube of the operation section 20 so as to extract an image in the introduction direction of the medical device 1 . The display 80 is operably coupled to the image extraction unit 70 to display the images extracted by the image extraction unit 70 as they are acquired in real time. By providing the image extracting unit 70 and the display 80, the operator can confirm the relative position between the medical device 1 and the patient's tissue when the medical device 1 is inserted, and can operate the operation unit 20 or perform suction work. When implemented, it is also possible to check the status of the patient, such as bleeding or drawing blood, in real time. The display 80 is preferably a high-resolution display and also has functions such as voice guidance, but the present invention is not limited to this.

As described above, according to the medical device of the present invention, operations such as debridement and blood collection can be performed simultaneously based on the structure of the channel that communicates with the operation unit, thereby ensuring good visibility during surgery. can be done. On the other hand, when combined with an external device such as an electrocautery device, it is possible to perform cauterization and blood collection at the same time after ensuring that the operation of the operation unit is stopped, or to simply perform blood collection. can.

The above contents are only some preferred embodiments of the present invention. It should be noted that various variations and modifications may be made without departing from the spirit and principles of the invention. Those skilled in the art will appreciate that the present invention is defined by the scope of the appended claims, and that all possible permutations, combinations, modifications and diversions, etc., that come within the spirit of the invention are covered by the appended claims. It should be understood that the scope of the invention, which is limited by the scope of

1: Medical Device 10: Outer Tube 10A: Outer Tube First End 10B: Outer Tube Second End 20: Operation Part 30: Control Part 30A: Handle First End 30B: Handle Second End 31: Channel 40: Casing 50: External Device 60: Introducer 60A: Introducer First End 60B: Introducer Second End 70: Image Extraction Unit 80: Display 300: Control Module 310: Aspiration Control 311 : Stopper 312: Projection 313: Upper O-seal ring 314: Lower O-seal ring 315: Extension 320: Suction port actuator 321: Suction valve 330: Switching unit 340: Flush controller 341: Upper O-seal Ring 342: lower O-seal ring 343: extension 350: flush port actuator 360: motor 361: cable d1: first depth d2: second depth D1: first direction D2: second direction DM1: diameter DM2: diameter P1: first channel P2: second channel

Claims (13)

an outer tube;
an operation portion at least partially located inside the outer tube;
A medical device comprising: the outer tube and a control unit having channels communicating with each other in a first direction and including a control module,
The control module is
at least one suction control portion having a stopper portion facing the channel and movable along a second direction different from the first direction;
a suction port actuator located on the opposite side of the channel from the suction control and driven by the suction control;
a switching unit releasably driven by the suction control unit and arranged to switch working states of the operation unit;
When the suction control is in a first position, the control module causes the suction port actuator to deactivate suction in the channel and the switching unit to deactivate the operator. and,
when the suction control is in the second position, the control module enables the suction port actuator to activate suction within the channel;
When the suction control is in the third position, the control module enables suction to be actuated in the channel by the suction port actuator, and the switching unit is adapted to enable the operating member. A medical device, wherein when driven, the stopper portion extends at least partially into the channel. 2. A method according to claim 1, characterized in that when the suction control is in the second position, a suction valve is opened by the control module to initiate the action of suction in the channel. medical device. at least a portion of the stopper portion enters the channel when the suction control portion is located in the second position;
the stopper portion extends into the channel to a first depth when the suction control portion is in the second position;
the stopper portion extends into the channel to a second depth when the suction control portion is in the third position;
2. The medical device of claim 1, wherein said second depth is greater than said first depth. The control module is
a washout control unit movably provided along the second direction;
a flush port actuator located opposite the channel from the flush control, wherein the flush control enables actuation of flush within the channel;
2. The medical device of claim 1, further comprising: 2. The medical device of claim 1, further comprising an external instrument at least partially positioned between the at least one suction control and the suction port actuator. an image extracting unit located at a portion of the operation portion protruding from a second end of the outer tube;
2. The medical device of claim 1, further comprising a display operatively coupled to the image extraction unit for receiving and displaying images extracted by the image extraction unit. the control module further comprises a motor electrically connected to the switching unit by a cable;
2. The medical treatment according to claim 1, wherein when the suction control unit is located at the third position, the motor is activated by the switching unit to switch the operating unit to a working state. Device. further comprising an introducer having a first introducer end open opposite each other and a second introducer end;
2. The medical device of claim 1, wherein at least a portion of the second end of the outer tube protrudes beyond the second end of the introducer. 6. The medical device of claim 5, wherein the diameter of the channel is greater than the diameter of the external device and no greater than eight times the diameter of the external device. 10. The medical device of claim 9, wherein the diameter of said channel is twice the diameter of said external device. 6. The medical device of claim 5, wherein the channel diameter ranges from 1.0 mm to 4.0 mm. 10. The medical device of Claim 9, wherein the diameter of the external device is greater than or equal to 0.5 mm and less than the diameter of the channel. 11. The medical device of claim 10, wherein the diameter of said external device ranges from 0.5 mm to 2.0 mm.

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