Circumferentially rotatable waterway structure and energy medical device

Abstract

The application discloses a circumferential rotatable water channel structure and energy medical equipment, wherein the water channel structure is applied to the energy medical equipment; the energy medical equipment comprises a handle shell, one end of the handle shell is rotationally connected with a hand wheel along an axial direction, a connecting pipe penetrating through the hand wheel is rotationally arranged in the hand wheel, one end of the connecting pipe away from the handle shell extends to the outside of the hand wheel and is connected with a terminal actuator provided with a cooling cavity; the water channel structure comprises a rigid water inlet pipe arranged in the connecting pipe along the axial direction, one end of the rigid water inlet pipe is communicated with the cooling cavity; the other end of the rigid water inlet pipe is communicated with an external cold source through a soft water inlet pipe, the middle part of the soft water inlet pipe is fixedly connected in the handle shell, the part of the soft water inlet pipe from the fixed connection position of the soft water inlet pipe with the handle shell to the water outlet end of the soft water inlet pipe is arranged as a first stretching part, the first stretching part has an initial state of being bent and folded and a second state of being unfolded and straightened; and the application can effectively cool the terminal actuator and ensure the flexibility of the terminal actuator in circumferential rotation adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a circumferentially rotatable water channel structure and energy medical equipment. Background Art

[0002] Energy medical devices (such as high-frequency electrosurgeries, electrocoagulation hooks, and electrocoagulation forceps) are mainly used in surgical scenarios for tissue cutting and blood vessel or tissue closure and sealing during electrosurgery. During electrosurgery, the end effector of the energy medical device heats the tissue when it comes into contact with the body through the high-frequency, high-voltage current generated by the effective electrode tip, thereby achieving separation and coagulation of body tissue. After surgery on a piece of body tissue, the temperature of the end effector is high, which can easily lead to thermal damage to the tissue and adhesion. In order to effectively cool the end effector, a water channel structure for circulating cooling liquid to the end effector is usually provided in the energy medical device. However, due to the limitations of the existing water channel structure, it is difficult to adjust the end effector's circumferential rotation during surgery, which limits the flexibility of the energy medical device's surgical use. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the water channel structure of the energy medical device in the prior art limits the circumferential rotation adjustment of the end effector, resulting in poor flexibility in surgical use of the energy medical device, thereby providing a circumferentially rotatable water channel structure and energy medical equipment.

[0004] According to a first aspect of the present invention, a circumferentially rotatable waterway structure is provided, comprising:

[0005] Applicable to energy medical equipment, the energy medical equipment includes a handle shell, one end of the handle shell is rotatably connected to a handwheel along the axial direction, a connecting pipe that rotates with the handwheel is provided in the handwheel, one end of the connecting pipe extends into the handle shell along the axial direction, and the other end extends outside the handwheel and is connected to the end effector, and a cooling cavity for accommodating a cooling medium is provided in the end effector; the water channel structure includes:

[0006] A rigid water inlet pipe is axially arranged in the connecting pipe, and a water outlet end of the rigid water inlet pipe is connected to the cooling cavity;

[0007] A soft water inlet pipe is used to connect the rigid water inlet pipe with an external cold source. The middle part of the soft water inlet pipe is fixedly connected to the handle shell. The part of the soft water inlet pipe from the fixed connection with the handle shell to the water outlet end of the soft water inlet pipe is set as a first extension part. The first extension part has an initial state of being bent and a second state of being unfolded and straightened.

[0008] A circumferentially rotatable waterway structure according to the present invention has at least the following technical effects:

[0009] By providing a cooling cavity in the end effector, and sequentially providing a rigid water inlet pipe and a flexible water inlet pipe between the cooling cavity and the external cold source, the cooling medium is transported into the cooling cavity to cool the heating part of the end effector by heat exchange, thereby achieving effective cooling of the end effector; at the same time, by fixing the middle part of the flexible water inlet pipe in the handle shell, and setting the part of the flexible water inlet pipe located between the fixed connection between the flexible water inlet pipe and the handle shell and the connection between the flexible water inlet pipe and the rigid water inlet pipe as a first extension part, the two ends of the first extension part along the length direction of the first extension part are respectively restricted by the fixed connection between the flexible water inlet pipe and the handle shell and the connection between the flexible water inlet pipe and the rigid water inlet pipe, and the first The extension portion has an expansion stroke for switching from an initial state to a second state; when the hand wheel is rotated to drive the end effector to rotate forward, the first extension portion will be regularly and gradually stretched out for corresponding adaptation under the action of being restricted at both ends; and when the hand wheel is rotated to drive the end effector to rotate reversely, the first extension portion will be regularly and gradually squeezed, bent and bent for corresponding adaptation under the action of being restricted at both ends; effectively avoiding interference and restriction on the circumferential rotation adjustment of the end effector, achieving effective cooling of the end effector while ensuring the flexibility of the circumferential rotation adjustment of the end effector, and improving the surgical flexibility of energy medical equipment equipped with this waterway structure.

[0010] Preferably, a rigid water outlet pipe is axially provided in the connecting pipe, and the water inlet end of the rigid water outlet pipe is connected to the cooling chamber; a soft water outlet pipe is provided between the water outlet end of the rigid water outlet pipe and the external cold source, and the middle part of the soft water outlet pipe and the middle part of the soft water inlet pipe are connected into one through an installation part, and the installation part is fixedly connected in the handle shell; the part of the soft water outlet pipe from the fixed connection with the handle shell to the water inlet end of the soft water outlet pipe is set as a second extension part, and the second extension part has an initial state of being bent and folded, and a second state of being unfolded and straightened.

[0011] Preferably, the projection of the flexible water inlet pipe along the horizontal direction overlaps with the flexible water outlet pipe; the projection of the rigid water inlet pipe along the horizontal direction overlaps with the rigid water outlet pipe.

[0012] Preferably, a convex portion is provided on the outer side of the part of the connecting tube located in the handle shell, a connecting portion is provided in the handle shell in the horizontal direction, a mounting hole is axially passed through the connecting portion, and the convex portion is rotatably connected in the mounting hole; the connecting portion is provided as a two-stage step vertically toward the upper end face of the soft water inlet pipe, and the corners of the two-stage step are smoothly transitioned into an arc.

[0013] Preferably, the handwheel is provided with a positioning portion along the axial direction of the end face of the convex portion; a cavity is provided in the connecting portion, the mounting hole is connected to the cavity, and a first limiting portion and a second limiting portion are convexly provided on an inner wall of the cavity along the horizontal direction corresponding to the positioning portion, the first limiting portion and the second limiting portion are arranged at intervals along the circumference of the handwheel, and the positioning portion is located between the first limiting portion and the second limiting portion along the circumference of the handwheel.

[0014] Preferably, the first limiting portion and the second limiting portion separate the cavity into a first cavity and a second cavity along the axial direction, and the first cavity is located on the side of the second cavity away from the end effector; the convex circular portion is rotatably connected in the first cavity; a connecting circular portion is convexly provided on the outer wall of the handwheel corresponding to the position of the second cavity, and the connecting circular portion is rotatably connected in the second cavity.

[0015] Preferably, the handle shell includes a first shell and a second shell which are separately arranged, and the first shell and the second shell are arranged opposite to each other in a horizontal direction; a first mounting groove is provided on the end surface of the first shell facing the second shell, and the first limiting portion and the second limiting portion are arranged in the first mounting groove; a second mounting groove is provided on the end surface of the second shell facing the first shell; the first shell and the second shell are detachably connected, and the first mounting groove and the second mounting groove enclose the cavity.

[0016] Preferably, a conductive rod is movably sleeved in the connecting tube along the axial direction, one end of the conductive rod in the axial direction is connected to the end actuator, and the other end extends into the handle shell through the connecting tube, and the rigid water inlet pipe and the rigid water outlet pipe are relatively arranged on both sides of the conductive rod in the horizontal direction; the mounting portion is provided at the upper end of the inner wall of the handle shell; the upper side wall of the part of the connecting tube located in the handle shell is provided with an elongated through groove, and the elongated through groove is arranged along the axial direction, the second extension portion passes through the elongated through groove and is connected to the water outlet end of the rigid water outlet pipe, and the first extension portion passes through the elongated through groove and is connected to the water inlet end of the rigid water inlet pipe.

[0017] According to a second aspect of the present invention, an energy medical device is provided, comprising the circumferentially rotatable water channel structure provided by the first aspect.

[0018] An energy medical device according to the present invention has at least the following technical effects:

[0019] By providing a cooling chamber in the end effector, and sequentially providing a rigid water inlet pipe and a flexible water inlet pipe between the cooling chamber and the external cold source, the cooling medium is transported into the cooling chamber to cool the heating part of the end effector by heat exchange, thereby achieving effective cooling of the end effector; at the same time, by fixing the middle portion of the flexible water inlet pipe in the handle shell, and setting the portion of the flexible water inlet pipe located between the fixed connection between the flexible water inlet pipe and the handle shell and the connection between the flexible water inlet pipe and the rigid water inlet pipe as a first extension portion, the two ends of the first extension portion along the length direction of the first extension portion are respectively restricted by the fixed connection between the flexible water inlet pipe and the handle shell and the connection between the flexible water inlet pipe and the rigid water inlet pipe, The first extension portion has an expansion stroke for switching from an initial state to a second state; when the hand wheel is rotated to drive the end effector to rotate forward, the first extension portion will be regularly and gradually stretched out for corresponding adaptation under the action of being restricted at both ends; and when the hand wheel is rotated to drive the end effector to rotate reversely, the first extension portion will be regularly and gradually squeezed, bent and bent for corresponding adaptation under the action of being restricted at both ends; effectively avoiding interference and restriction on the circumferential rotation adjustment of the end effector, achieving effective cooling of the end effector while ensuring the flexibility of the circumferential rotation adjustment of the end effector, and improving the flexibility of surgical use of the energy medical device.

[0020] Preferably, it also includes a conductive rod, which is movably sleeved in the connecting tube along the axial direction, and one end of the conductive rod extends into the handle shell and is electrically connected to a wire, and the wire is electrically connected to a high-frequency power supply with a control switch; a conductive spring is connected between the conductive rod and the wire, and the conductive spring is arranged in the handle shell and abuts against the outer peripheral surface of the conductive rod; the other end of the conductive rod along the axial direction is connected to the end effector.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a circumferentially rotatable water channel structure of this embodiment assembled on an energy medical device;

[0024] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0025] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0026] Figure 4 for Figure 1 Schematic diagram of some structures in ;

[0027] Figure 5 for Figure 4 Schematic diagram of the structure after removing the hand wheel, connecting pipe and conductive rod;

[0028] Figure 6 for Figure 1 A schematic diagram of the main structure of a part of the structure;

[0029] Figure 7 for Figure 1 A schematic diagram of a cross-sectional top view of a partial structure of

[0030] Figure 8 for Figure 1 A schematic diagram of a portion of the structure of the first shell;

[0031] Figure 9 for Figure 1 Schematic diagram of the structure of the second shell.

[0032] Description of reference numerals:

[0033] 1-handle shell, 11-first shell, 111-first mounting slot, 112-embedded slot, 12-second shell, 121-second mounting slot;

[0034] 2-hand wheel, 21-positioning part, 22-connecting circle;

[0035] 3-connecting tube, 31-convex portion, 32-elongated through groove, 33-insulating tube;

[0036] 4-end effector, 41-cooling chamber;

[0037] 51-rigid water inlet pipe, 52-soft water inlet pipe, 521-first extension part;

[0038] 61-rigid water outlet pipe, 62-flexible water outlet pipe, 621-second extension portion, 63-installation portion;

[0039] 7-connecting part, 71-second step, 72-first limiting part, 73-second limiting part, 74-first cavity, 75-second cavity;

[0040] 81-conductive rod, 82-driving mechanism;

[0041] 91- conductor, 92- high frequency power supply, 93- conductive shrapnel. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] Example 1

[0047] like Figures 1 to 7The present embodiment shows a circumferentially rotatable waterway structure, which is applied to energy medical equipment. The energy medical equipment includes a handle shell 1, one end of the handle shell 1 is rotatably connected to a hand wheel 2, and a connecting pipe 3 that rotates with the hand wheel 2 is provided in the hand wheel 2. One end of the connecting pipe 3 extends into the handle shell 1 along the axial direction, and the other end extends to the outside of the hand wheel 2 and is connected to an end effector 4. A cooling cavity 41 for accommodating a cooling medium is provided in the end effector 4; the waterway structure includes a cooling cavity 41 provided in the axial direction on the connecting pipe 3, the water outlet end of the rigid water inlet pipe 51 is connected to the cooling chamber 41; the water inlet end of the rigid water inlet pipe 51 is connected to the external cold source through the soft water inlet pipe 52, the middle part of the soft water inlet pipe 52 is fixedly connected to the handle shell 1, and the part of the soft water inlet pipe 52 located between the fixed connection between the soft water inlet pipe 52 and the handle shell 1 and the water outlet end of the soft water inlet pipe 52 is set as a first extension part 521, and the first extension part 521 has an initial state of bending and a second state of unfolding and straightening. It can be understood that the axial direction mentioned herein refers to Figure 2 The axial direction in the text refers to the vertical direction Figure 2 The vertical direction in the text refers to the horizontal direction Figure 2 In the horizontal direction, the axial, vertical and horizontal directions are perpendicular to each other.

[0048] The water channel structure of this embodiment is provided with a cooling chamber 41 in the end effector 4, and a rigid water inlet pipe 51 and a soft water inlet pipe 52 are sequentially provided between the cooling chamber 41 and the external cold source, so that the cooling medium is transported to the cooling chamber 41 to cool the heating part of the end effector 4 by heat exchange, thereby achieving effective cooling of the end effector 4; at the same time, the middle part of the soft water inlet pipe 52 is fixed in the handle shell 1, and the part of the soft water inlet pipe 52 located at the fixed connection between the soft water inlet pipe 52 and the handle shell 1 to the connection between the soft water inlet pipe 52 and the rigid water inlet pipe 51 is set as the first extension part 521, so that the two ends of the first extension part 521 along the length direction of the first extension part 521 are respectively connected by the fixed connection between the soft water inlet pipe 52 and the handle shell 1 and the soft water inlet pipe 52 and the rigid water inlet pipe The connection of the tube 51 is restricted, and the first extension portion 521 has an expansion stroke for switching from an initial state to a second state; so that when the rotating handwheel 2 drives the end effector 4 to rotate forward, the first extension portion 521 will be regularly and gradually stretched out for corresponding adaptation under the action of the restrictions at both ends; and when the rotating handwheel 2 drives the end effector 4 to rotate reversely, the first extension portion 521 will be regularly and gradually squeezed, bent and bent for corresponding adaptation under the action of the restrictions at both ends; effectively avoiding interference and restriction on the circumferential rotation adjustment of the end effector 4, achieving effective cooling of the end effector 4 while ensuring the flexibility of the circumferential rotation adjustment of the end effector 4, and improving the surgical flexibility of the energy medical equipment equipped with the water channel structure of this embodiment.

[0049] like Figures 1 to 7As shown, optionally, a rigid water outlet pipe 61 is axially provided in the connecting pipe 3, and the water inlet end of the rigid water outlet pipe 61 is connected to the cooling chamber 41; a soft water outlet pipe 62 is provided between the water outlet end of the rigid water outlet pipe 61 and the external cold source, and the middle part of the soft water outlet pipe 62 and the middle part of the soft water inlet pipe 52 are connected into one through a mounting portion 63, and the mounting portion 63 is fixedly connected in the handle shell 1; the part of the soft water outlet pipe 62 located from the fixed connection between the soft water outlet pipe 62 and the handle shell 1 to the water inlet end of the soft water outlet pipe 62 is set as a second extension portion 621, and the second extension portion 621 has an initial state of being folded and bent, and a second state of being unfolded and straightened. By sequentially arranging a rigid water outlet pipe 61 and a soft water outlet pipe 62 between the water outlet end of the cooling chamber 41 and the external cold source, and cooperating with the rigid water inlet pipe 51 and the soft water inlet pipe 52 to form a circulation loop for the circulation of the cooling medium between the cooling chamber 41 and the external cold source, the cooling medium circulates the heat of the heating part of the end effector 4 to the external cold source continuously, which not only eliminates the risk of thermal damage to the tissue and adhesion caused by the high temperature of the heating surface of the end effector 4, but also improves the efficiency of heat dissipation and cooling. At the same time, the middle part of the soft water outlet pipe 62 is fixed in the handle shell 1 through the mounting portion 63, and the part of the soft water outlet pipe 62 located between the fixed connection between the soft water outlet pipe 62 and the handle shell 1 and the connection between the soft water outlet pipe 62 and the rigid water outlet pipe 61 is set as the second extension portion 621, so that the two ends of the second extension portion 621 along the length direction of the second extension portion 621 are respectively restricted by the fixed connection between the soft water outlet pipe 62 and the handle shell 1 and the connection between the soft water outlet pipe 62 and the rigid water outlet pipe 61, and the second extension portion 621 has an expansion stroke amount for switching from the initial state to the second state; so that when the hand wheel 2 is rotated to drive the end When the actuator 4 rotates forward together, the second extension portion 621 will be regularly and gradually stretched out for corresponding adaptation under the action of being restricted at both ends; and when the handwheel 2 is rotated to drive the end actuator 4 to rotate reversely, the second extension portion 621 will be regularly and gradually squeezed, bent and bent for corresponding adaptation under the action of being restricted at both ends; effectively avoiding interference and restriction on the circumferential rotation adjustment of the end actuator 4, achieving effective cooling of the end actuator 4 while ensuring the flexibility of the circumferential rotation adjustment of the end actuator 4, and improving the surgical flexibility of the energy medical equipment equipped with the water channel structure of this embodiment.By connecting the middle parts of the soft water outlet pipe 62 and the soft water inlet pipe 52 into one body through the mounting portion 63, on the one hand, it is convenient to fix the middle parts of the soft water outlet pipe 62 and the soft water inlet pipe 52 in the handle shell 1, thereby simplifying the assembly process; on the other hand, it enables the fixed connection between the first extension portion 521 and the handle shell 1 and the fixed connection between the second extension portion 621 and the handle shell 1 to be basically located at the same position along the axial direction, thereby making the stretching and bending rules of the first extension portion 521 and the second extension portion 621 basically consistent, thereby ensuring the stability of the water channel structure in use.

[0050] In a specific application, the positions of the mounting portion 63 corresponding to the soft water outlet pipe 62 and the soft water inlet pipe 52 are both axially penetrated with perforations; during assembly, the soft water outlet pipe 62 and the soft water inlet pipe 52 are respectively passed through the corresponding perforations until the mounting portion 63 is located at the set positions of the soft water outlet pipe 62 and the soft water inlet pipe 52, and then fixed by filling glue into the perforations; the entire assembly process is easy to operate.

[0051] In specific applications, the energy medical device can be selected as one of a high-frequency electric knife, an electric coagulation hook or an electric coagulation surgical forceps; when the energy medical device is set to a high-frequency electric knife, the end effector 4 is the electric knife part; when the energy medical device is an electric coagulation hook, the end effector 4 is the electric hook head; when the end effector 4 is an electric coagulation surgical forceps, the end effector 4 is the forceps head.

[0052] It should be noted that, when the rotating hand wheel 2 drives the end effector 4 to rotate forward, the first extension portion 521 and the second extension portion 621 are both regularly and gradually stretched out; and when the rotating hand wheel 2 drives the end effector 4 to rotate reversely, the first extension portion 521 and the second extension portion 621 are both regularly and gradually squeezed, folded and bent; therefore, it can be ensured that the first extension portion 521 and the second extension portion 621 will not be entangled with each other after being stretched out and squeezed, folded and bent for a long time and many times, thereby ensuring the stability of use and service life.

[0053] It should be noted that the water inlet end of the flexible water inlet pipe 52 and the water outlet end of the flexible water outlet pipe 62 both extend to the outside of the handle housing 1 and are in communication with an external cold source.

[0054] like Figures 2 to 6As shown, optionally, the horizontal projection of the flexible water inlet pipe 52 overlaps with the flexible water outlet pipe 62; and the horizontal projection of the rigid water inlet pipe 51 overlaps with the rigid water outlet pipe 61. This arrangement allows the connection between the first extension portion 521 and the rigid water inlet pipe 51, as well as the connection between the second extension portion 621 and the rigid water outlet pipe 61, to be located at substantially the same axial position, thereby better ensuring that the first extension portion 521 and the second extension portion 621 maintain substantially the same stretching and bending patterns, as well as the first extension portion 521 and the second extension portion 621 maintain substantially the same squeezing and bending patterns, thereby improving the operational stability of the waterway structure of this embodiment.

[0055] like Figures 3 to 5 as well as Figure 8 and Figure 9 As shown, optionally, a convex portion 31 is provided on the outer side of the portion of the connecting tube 3 located inside the handle shell 1, a connecting portion 7 is provided in the handle shell 1 along the horizontal direction, a mounting hole is axially penetrated in the connecting portion 7, and the convex portion 31 is rotatably connected in the mounting hole; the connecting portion 7 is provided as a secondary step 71 vertically toward the upper end face of the soft water inlet pipe 52, and the corners of the secondary step 71 are smoothly transitioned into an arc. As the first and second extensions 521, 621 are gradually extended as the handwheel 2 rotates in the forward direction, the secondary step 71 provides a support point for the lower middle ends of the first and second extensions 521, 621, allowing them to be extended and adapted to each other in a regular and gradual manner. Furthermore, the connecting portion 7 is arranged horizontally within the handle housing 1, with no significant gap between the connecting portion 7 and the inner wall of the handle housing 1, and no significant gap on the secondary step 71. This ensures that the first and second extensions 521, 621 will not become stuck during extension or bending. Furthermore, by creating a smooth arc transition at the corner of the secondary step 71, friction generated when the first and second extensions 521, 621 come into contact with the secondary step 71 is reduced, preventing damage to the first and second extensions 521, 621, during the gradual extension process. Furthermore, the rotatable connection between the convex portion 31 and the mounting hole improves the circumferential rotational stability of the connecting tube 3.

[0056] like Figures 3 to 5As shown, optionally, a positioning portion 21 is provided on the end face of the handwheel 2 axially toward the convex portion 31; a cavity is provided in the connecting portion 7, the mounting hole is connected to the cavity, and a first limiting portion 72 and a second limiting portion 73 are protruded from an inner wall of the cavity along the horizontal direction corresponding to the positioning portion 21, the first limiting portion 72 and the second limiting portion 73 are arranged at intervals along the circumference of the handwheel 2, and the positioning portion 21 is located between the first limiting portion 72 and the second limiting portion 73 along the circumference of the handwheel 2. The maximum angular position of the forward rotation of the hand wheel 2 is limited by the first limiting portion 72, and the maximum angular position of the reverse rotation of the hand wheel 2 is limited by the second limiting portion 73, so that after the hand wheel 2 rotates forward to the position where the positioning portion 21 abuts the first limiting portion 72 (that is, the position where the first extension portion 521 and the second extension portion 621 are in the second state), it cannot continue to rotate forward, and after the hand wheel 2 rotates reversely to the position where the positioning portion 21 abuts the second limiting portion 73 (that is, the position where the first extension portion 521 and the second extension portion 621 are in the initial state), it cannot continue to rotate reversely; ensuring that the first extension portion 521 and the second extension portion 621 are not damaged on the basis of the hand wheel 2 driving the end effector 4 to rotate within the set angle range.

[0057] Specifically, in this embodiment, the handwheel 2 can drive the end effector 4 to rotate 180° in a circumferential direction; of course, this is only a preferred embodiment of the angle range within which the handwheel 2 can drive the end effector 4 to rotate in a circumferential direction, and no specific limitation is imposed on it. In other embodiments, the angle range can be set to 90°, 120° or 270°, etc.

[0058] In specific applications, the length from the connection between the soft water inlet pipe 52 and the mounting part 63 to the water outlet end of the soft water inlet pipe 52 can be adjusted accordingly according to the actual need of the handwheel 2 to drive the end effector 4 to rotate circumferentially, that is, the mounting part 63 is used as the measurement reference, the distance from the mounting part 63 to the water outlet end of the soft water inlet pipe 52 is measured, and based on the measured distance value, it is judged whether the position of the mounting part 63 on the soft water inlet pipe 52 meets the requirement of the circumferential rotation angle range of the end effector 4, and the entire assembly process is simpler.

[0059] like Figure 4 and Figure 5As shown, optionally, the first limiting portion 72 and the second limiting portion 73 divide the cavity into a first cavity 74 and a second cavity 75 along the axial direction, with the first cavity 74 being located on the side of the second cavity 75 facing away from the end effector 4; the convex portion 31 is rotatably connected within the first cavity 74; and a connecting circular portion 22 is convexly provided on the outer wall of the handwheel 2 at a position corresponding to the second cavity 75, and the connecting circular portion 22 is rotatably connected within the second cavity 75. The rotational connection between the connecting circular portion 22 and the second cavity 75 improves the stability of the circumferential rotation of the handwheel 2, more stably driving the connecting pipe 3, the end effector 4, the rigid water inlet pipe 51, and the rigid water outlet pipe 61 to rotate circumferentially, thereby more stably causing the first extension portion 521 and the second extension portion 621 to be gradually stretched or squeezed and bent in a regular and gradual manner.

[0060] like Figure 2 、 Figure 8 and Figure 9 As shown, optionally, the handle shell 1 includes a first shell 11 and a second shell 12 that are separately arranged, and the first shell 11 and the second shell 12 are arranged opposite to each other in the horizontal direction; the end surface of the first shell 11 facing the second shell 12 is provided with a first installation groove 111, and the first limiting portion 72 and the second limiting portion 73 are arranged in the first installation groove 111; the end surface of the second shell 12 facing the first shell 11 is provided with a second installation groove 121; the first shell 11 and the second shell 12 are detachably connected, and the first installation groove 111 and the second installation groove 121 enclose the cavity. The handle shell 1 adopts a split arrangement, which can improve the convenience of installing the handwheel 2, connecting pipe 3, soft water outlet pipe 62 and soft water inlet pipe 52 in the handle shell 1, reduce the difficulty of the installation process and facilitate mass production.

[0061] It should be noted that after the first shell 11 and the second shell 12 are assembled into one, the surrounding walls of the first mounting groove 111 and the second mounting groove 121 form a connecting portion 7, and there is no obvious gap between the end faces of the surrounding walls of the first mounting groove 111 and the second mounting groove 121 that abut each other in the horizontal direction, so that there is no obvious gap on the secondary step 71, ensuring that the first extension portion 521 and the second extension portion 621 will not be stuck during the process of being stretched, squeezed, folded and bent.

[0062] Specifically, a card slot is provided on the end face of the second shell 12 facing the first shell 11, and a flange is provided on the end face of the first shell 11 facing the second shell 12 at a position corresponding to the card slot, and the flange matches the card slot; the combined installation of the first shell 11 and the second shell 12 is completed by the card connection between the card slot and the flange, the installation operation is simple, the difficulty of the installation process is reduced, and mass production is more convenient.

[0063] like Figure 4 、 Figure 5 and Figure 8 As shown, specifically, an embedding groove 112 is provided at the upper end of the end surface of the first shell 11 facing the second shell 12 , and the mounting portion 63 is fixedly embedded in the embedding groove 112 .

[0064] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 As shown, optionally, a conductive rod 81 is axially movably sleeved in the connecting tube 3, one end of the conductive rod 81 is connected to the end actuator 4 in the axial direction, and the other end extends through the connecting tube 3 into the handle shell 1, and is connected to a driving mechanism 82 for controlling the axial movement of the conductive rod 81, and the rigid water inlet pipe 51 and the rigid water outlet pipe 61 are relatively arranged on both sides of the conductive rod 81 in the horizontal direction; the mounting portion 63 is provided at the upper end of the inner wall of the handle shell 1; the upper side wall of the part of the connecting tube 3 located in the handle shell 1 is provided with an elongated through groove 32, and the elongated through groove 32 is arranged axially, the second extension portion 621 passes through the elongated through groove 32 and is connected to the water outlet end of the rigid water outlet pipe 61, and the first extension portion 521 passes through the elongated through groove 32 and is connected to the water inlet end of the rigid water inlet pipe 51. First, by arranging the mounting portion 63 at the upper end of the inner wall of the handle shell 1, that is, the fixed connection between the first extension portion 521 and the second extension portion 621 and the handle shell 1 is located at the upper end of the inner wall of the handle shell 1, separated from the driving mechanism 82, and does not interfere with the driving mechanism 82; secondly, by providing an elongated through groove 32 on the upper side wall of the portion of the connecting tube 3 located in the handle shell 1, when the conductive rod 81 is moved axially in the direction away from the end effector 4, the first extension portion 521 can be brought close to one end of the rigid water inlet pipe 51 and the second extension portion 621. The end of the extension portion 621 close to the rigid water outlet pipe 61 is led out from the elongated through groove 32 in advance, effectively and maximally increasing the peristaltic space of the end of the first extension portion 521 close to the rigid water inlet pipe 51 and the end of the second extension portion 621 close to the rigid water outlet pipe 61; and the elongated through groove 32 provides a space so that the first extension portion 521 and the second extension portion 621 can be regularly stretched or squeezed and bent, so as to better adapt to the circumferential rotation of the hand wheel 2 and enhance the flexibility of the circumferential rotation adjustment of the end effector 4.

[0065] It should be noted that when the handwheel 2 extends into the handle housing 1 and covers the portion of the connecting tube 3 provided with the elongated through-slot 32 , the elongated through-slot 32 passes through the handwheel 2 .

[0066] Specifically, the driving mechanism 82 is a conventional linear driving structure, which can realize the function of driving the conductive rod 81 to move back and forth along the axial direction.

[0067] Example 2

[0068] like Figures 1 to 9 Shown is an energy medical device provided in this embodiment, including the circumferentially rotatable water channel structure described in Example 1.

[0069] The energy medical device of this embodiment is provided with a cooling cavity 41 in the end effector 4, and a rigid water inlet pipe 51 and a soft water inlet pipe 52 are sequentially provided between the cooling cavity 41 and the external cold source, so that the cooling medium is transported to the cooling cavity 41 to cool the heating part of the end effector 4 by heat exchange, thereby achieving effective cooling of the end effector 4; at the same time, the middle part of the soft water inlet pipe 52 is fixed in the handle shell 1, and the part of the soft water inlet pipe 52 located at the fixed connection between the soft water inlet pipe 52 and the handle shell 1 to the connection between the soft water inlet pipe 52 and the rigid water inlet pipe 51 is set as the first extension part 521, so that the two ends of the first extension part 521 along the length direction of the first extension part 521 are respectively connected by the fixed connection between the soft water inlet pipe 52 and the handle shell 1 and the connection between the soft water inlet pipe 52 and the rigid water inlet pipe 51. The connection of the rigid water inlet pipe 51 is restricted, and the first extension portion 521 has an expansion stroke for switching from an initial state to a second state; so that when the rotating handwheel 2 drives the end effector 4 to rotate forward, the first extension portion 521 will be regularly and gradually stretched out for corresponding adaptation under the action of the restrictions at both ends; and when the rotating handwheel 2 drives the end effector 4 to rotate reversely, the first extension portion 521 will be regularly and gradually squeezed, bent and bent for corresponding adaptation under the action of the restrictions at both ends; effectively avoiding interference and restriction on the circumferential rotation adjustment of the end effector 4, achieving effective cooling of the end effector 4 while ensuring the flexibility of the circumferential rotation adjustment of the end effector 4, and improving the surgical flexibility of the energy medical device equipped with this embodiment.

[0070] like Figure 1 、 Figure 2 、 Figure 5 and Figure 6Optionally, the energy medical device further includes a conductive rod 81, which is axially movably sleeved within the connecting tube 3. One axial end of the conductive rod 81 extends into the handle housing 1 and is electrically connected to a wire 91. The wire 91 is also connected to a drive mechanism 82 for controlling the axial movement of the conductive rod 81. The wire 91 is electrically connected to a high-frequency power supply 92 with a control switch. A conductive spring 93 is connected between the conductive rod 81 and the wire 91. The conductive spring 93 is disposed within the handle housing 1 and abuts against the outer circumference of the conductive rod 81. The other axial end of the conductive rod 81 is connected to the end effector 4. The wire 91 electrically connects the end effector 4 to the output of the high-frequency power supply 92, so that when performing separation and coagulation operations on the surgical site, high-frequency current can be supplied to the end effector 4 by activating the control switch, facilitating surgical operations. A conductive spring piece 93 is additionally provided between the conductive rod 81 and the conductive wire 91. The conductive spring piece 93 is always in contact with the outer peripheral surface of the conductive rod 81 to conduct electricity during the axial reciprocating movement of the conductive rod 81, thereby ensuring that the high-frequency current is diverted to the end effector 4 during surgery. At the same time, it can also prevent the conductive wire 91 from being pulled during the axial reciprocating movement of the conductive rod 81, thereby extending the service life of the conductive wire 91.

[0071] like Figure 1 and Figure 2 As shown, specifically, an insulating tube 33 is connected to the outer portion of the connecting tube 3 extending to the handle shell 1 .

[0072] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A circumferentially rotatable waterway structure, applied to an energy medical device, the energy medical device comprising a handle shell (1), wherein one end of the handle shell (1) is rotatably connected to a hand wheel (2), a connecting pipe (3) rotating with the hand wheel (2) is provided in the hand wheel (2), one end of the connecting pipe (3) extending into the handle shell (1) along the axial direction, and the other end extending to the outside of the hand wheel (2) and connected to an end effector (4), wherein a cooling cavity (41) for accommodating a cooling medium is provided in the end effector (4); characterized in that The waterway structure comprises: A rigid water inlet pipe (51) is axially arranged in the connecting pipe (3), and its water outlet end is in communication with the cooling cavity (41); A soft water inlet pipe (52) is used to connect the rigid water inlet pipe (51) to an external cold source, wherein the middle portion of the soft water inlet pipe (52) is fixedly connected to the handle shell (1), and the portion of the soft water inlet pipe (52) from the fixed connection between the soft water inlet pipe and the handle shell (1) to the water outlet end of the soft water inlet pipe (52) is configured as a first extension portion (521), wherein the first extension portion (521) has an initial state of being bent and a second state of being unfolded and straightened; A rigid water outlet pipe (61) is axially provided in the connecting pipe (3), and the water inlet end of the rigid water outlet pipe (61) is in communication with the cooling chamber (41); a soft water outlet pipe (62) is provided between the water outlet end of the rigid water outlet pipe (61) and the external cold source, and the middle portion of the soft water outlet pipe (62) is integrally connected to the middle portion of the soft water inlet pipe (52) via a mounting portion (63), and the mounting portion (63) is fixedly connected to the handle shell (1); the portion of the soft water outlet pipe (62) from the fixed connection with the handle shell (1) to the water inlet end of the soft water outlet pipe (62) is provided as a second extension portion (621), and the second extension portion (621) has an initial state of being bent and a second state of being unfolded and straightened.

2. A circumferentially rotatable waterway structure according to claim 1, characterized in that: The projection of the flexible water inlet pipe (52) in the horizontal direction overlaps with the flexible water outlet pipe (62); and the projection of the rigid water inlet pipe (51) in the horizontal direction overlaps with the rigid water outlet pipe (61).

3. A circumferentially rotatable waterway structure according to claim 2, characterized in that: A convex portion (31) is provided on the outer side of the portion of the connecting pipe (3) located inside the handle shell (1); a connecting portion (7) is provided in the handle shell (1) along the horizontal direction; a mounting hole is axially penetrated in the connecting portion (7); the convex portion (31) is rotatably connected in the mounting hole; the connecting portion (7) is provided with a secondary step (71) along the vertical direction toward the upper end surface of the soft water inlet pipe (52); the corner of the secondary step (71) is smoothly transitioned into an arc.

4. A circumferentially rotatable waterway structure according to claim 3, characterized in that: The handwheel (2) is provided with a positioning portion (21) on the end surface thereof axially facing the convex portion (31); a cavity is provided in the connecting portion (7), the mounting hole is communicated with the cavity, and a first limiting portion (72) and a second limiting portion (73) are provided on an inner wall of the cavity in a horizontal direction corresponding to the positioning portion (21), the first limiting portion (72) and the second limiting portion (73) are arranged at intervals along the circumference of the handwheel (2), and the positioning portion (21) is located between the first limiting portion (72) and the second limiting portion (73) along the circumference of the handwheel (2).

5. The circumferentially rotatable waterway structure according to claim 4, characterized in that: The first limiting portion (72) and the second limiting portion (73) divide the cavity into a first cavity (74) and a second cavity (75) along the axial direction, and the first cavity (74) is located on the side of the second cavity (75) away from the end effector (4); the convex circular portion (31) is rotatably connected in the first cavity (74); a connecting circular portion (22) is convexly provided on the outer wall of the handwheel (2) corresponding to the position of the second cavity (75), and the connecting circular portion (22) is rotatably connected in the second cavity (75).

6. The circumferentially rotatable waterway structure according to claim 5, characterized in that: The handle shell (1) comprises a first shell (11) and a second shell (12) which are separately arranged, and the first shell (11) and the second shell (12) are arranged opposite to each other in a horizontal direction; a first mounting groove (111) is provided on the end surface of the first shell (11) facing the second shell (12), and the first limiting portion (72) and the second limiting portion (73) are arranged in the first mounting groove (111); a second mounting groove (121) is provided on the end surface of the second shell (12) facing the first shell (11); the first shell (11) and the second shell (12) are detachably connected, and the first mounting groove (111) and the second mounting groove (121) enclose the cavity.

7. A circumferentially rotatable waterway structure according to any one of claims 1 to 6, characterized in that: A conductive rod (81) is movably sleeved in the connecting tube (3) along the axial direction, one end of the conductive rod (81) is connected to the end effector (4), and the other end passes through the connecting tube (3) and extends into the handle shell (1), and the rigid water inlet pipe (51) and the rigid water outlet pipe (61) are relatively arranged on both sides of the conductive rod (81) in the horizontal direction; the mounting portion (63) is provided at the upper end of the inner wall of the handle shell (1); the upper side wall of the portion of the connecting tube (3) located in the handle shell (1) is provided with an elongated through slot (32), and the elongated through slot (32) is arranged along the axial direction, the second extension portion (621) passes through the elongated through slot (32) and is connected to the water outlet end of the rigid water outlet pipe (61), and the first extension portion (521) passes through the elongated through slot (32) and is connected to the water inlet end of the rigid water inlet pipe (51).

8. An energy medical device, characterized in that: It comprises the circumferentially rotatable waterway structure according to any one of claims 1 to 7.

9. The energy medical device according to claim 8, characterized in that: The invention also includes a conductive rod (81), which is movably sleeved in the connecting tube (3) along the axial direction, and one end of the conductive rod (81) extends into the handle shell (1) and is electrically connected to a wire (91), and the wire (91) is electrically connected to a high-frequency power supply (92) with a control switch; a conductive spring (93) is connected between the conductive rod (81) and the wire (91), and the conductive spring (93) is arranged in the handle shell (1) and abuts against the outer peripheral surface of the conductive rod (81); the other end of the conductive rod (81) along the axial direction is connected to the end effector (4).

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