CN111035418A - Visual direction-changing operation power device - Google Patents
Visual direction-changing operation power device Download PDFInfo
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- CN111035418A CN111035418A CN201911419143.5A CN201911419143A CN111035418A CN 111035418 A CN111035418 A CN 111035418A CN 201911419143 A CN201911419143 A CN 201911419143A CN 111035418 A CN111035418 A CN 111035418A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1659—Surgical rasps, files, planes, or scrapers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/361—Image-producing devices, e.g. surgical cameras
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
- A61B2090/309—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white LEDs
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Abstract
The invention discloses a visual direction-changing operation power device, which comprises: a handle; the cutter comprises a cutter bar and a cutter head, the rear end of the cutter bar is connected with the handle, the front end of the cutter bar is connected with the rear end of the cutter head through a rotating connecting mechanism, so that the cutter head can rotate around a rotating axis to adjust an included angle between the central line axis of the cutter head and the central line of the cutter bar; the tool bit direction changing device is used for driving the tool bit to rotate around the rotating axis; further comprising: the camera shooting assembly comprises a camera and a cable, the camera is connected with the cutter head and rotates along with the rotation of the cutter head around the rotation axis, and the front end of the cable is connected with the camera. According to the visual direction-changing operation power device, the rotating angle of the cutter head and the visual field angle of the camera are adjusted simultaneously through the cutter head direction-changing device, so that a doctor only needs to hold the device with one hand, and the operation difficulty of the doctor is reduced; moreover, the camera and the cutter head are relatively static, so that synchronous operation of the cutter head and the camera is realized, the observation time of a doctor is saved, and the operation safety is greatly improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a visual direction-changing operation power device.
Background
An endoscope is an auxiliary instrument which enters a human body through a natural pore canal or a surgical incision for observation, and is commonly used for diagnosis and treatment of patients. Endoscopes are classified into hard lenses and soft lenses according to hardness. At present, a hard mirror tube needs to be rotated when the angle of a visual field of the hard mirror is adjusted in a human body, the rotating area of the hard mirror tube is large, the side damage to a minimally invasive surgery incision is caused, and the internal space of a human body surgery part limits the whole rotation of the hard mirror tube. The soft lens is not easy to control in bending and rotating when adjusting the view angle in a human body, has low operation accuracy, small rigidity, is difficult to control, cannot be positioned and locked, and is difficult to adjust and maintain the expected view angle.
In endoscopic surgery, a surgical power device is often used in a matched manner for excision therapy, a doctor operates the surgical power device and an endoscope at the same time, and the cooperation of the surgical power device and the endoscope requires abundant instrument operation experience. When in operation, doctors need to see the endoscope in the focus area and need an operation power device which can cut off the focus, for the focus in the specific position area, the doctors usually swing the instruments outside the human body to realize the visual field detection and the change of the cutting treatment angle, the rotation amplitude is large, the internal space of the operation part of the human body is limited, the operation control is not easy, and the stability is poor. Although some endoscope and operation power devices have a planing head, a grinding bit or a rotary cutting head which can change directions, the two directions are asynchronous, and the two heads still need to work in a matching way, so that the operation difficulty is increased.
Disclosure of Invention
In view of the current state of the prior art, the invention provides a visual direction-changing operation power device which can conveniently adjust the visual field angle and the cutter head angle in the endoscopic operation.
In order to solve the technical problem, the invention provides a visual direction-changing surgical power device, which comprises: a handle; the cutter comprises a cutter bar and a cutter head, the rear end of the cutter bar is connected with the handle, the front end of the cutter bar is connected with the rear end of the cutter head through a rotating connecting mechanism, and the cutter head can rotate around a rotating axis to adjust an included angle between the central line axis of the cutter head and the central line of the cutter bar; the tool bit direction changing device is used for driving the tool bit to rotate around the rotating axis; further comprising: the camera shooting assembly comprises a camera and a cable, the camera is connected with the cutter head and rotates along with the rotation of the cutter head around the rotation axis, and the front end of the cable is connected with the camera.
According to the visual direction-changing operation power device, the camera is arranged on the cutter head, and the rotating angle of the cutter head and the visual field angle of the camera are adjusted simultaneously through the cutter head direction-changing device, so that a doctor only needs to hold the device with one hand, and the operation difficulty of the doctor is reduced; moreover, the camera and the cutter head are relatively static, so that synchronous operation of the cutter head and the camera is realized, the observation time of a doctor is saved, and the operation safety is greatly improved. Therefore, the visual direction-changing operation power device provided by the invention combines the endoscope and the operation power system, and solves the problems that the endoscope tube needs to be integrally swung for angle adjustment in the endoscopic operation and the operation instrument is inconvenient and asynchronous to adjust in cooperation with the endoscope tube.
In one embodiment, the tool bit direction changing device comprises an instrument tube, a steering head, a traction member and a traction driving mechanism, the instrument tube is sleeved on the peripheries of the tool bar and the cable, the rear end of the instrument tube is fixed on the handle, the steering head is sleeved on the peripheries of the tool bit and the camera, the rear end of the steering head is rotatably connected with the front end of the instrument tube around the rotating axis, the traction member is arranged in the instrument tube and can move back and forth along the axial direction of the instrument tube, the front end of the traction member is connected with the rear end of the steering head, the traction driving mechanism is arranged on the handle, and the traction driving mechanism is connected with the rear end of the traction member and used for driving the traction member to move back and forth along the axial direction of the instrument tube.
In one embodiment, the camera head includes a mounting member fixed within the steering head, an image sensor and an illuminating member mounted on the mounting member.
In one embodiment, the pull member is tubular and is disposed within the instrument tube, and the knife bar and the cable are received within the pull member.
In one embodiment, the traction piece can rotate between an unlocking position and a locking position relative to the instrument tube, and an unlocking sleeve for driving the traction piece to rotate between the unlocking position and the locking position is arranged on the handle; a locking mechanism is arranged between the front end of the traction piece and the rear end of the steering head, when the traction piece is located at the unlocking position, the locking mechanism allows the rotating head to rotate around the rotating axis, and when the traction piece is located at the locking position, the locking mechanism limits the rotating head to rotate around the rotating axis.
In one embodiment, a front end of the traction piece is provided with a first connecting part, a rear end wall of the steering head on one side of the rotation axis is provided with a second connecting part matched with the first connecting part, and the front end of the traction piece and the rear end of the steering head are connected through the first connecting part and the second connecting part; when the pulling piece is located at the unlocking position, the first connecting portion is combined with the second connecting portion, and when the pulling piece is located at the locking position, the first connecting portion is separated from the second connecting portion.
In one embodiment, the locking mechanism includes a lug extending axially forward from a front face of the puller, the lug being located on the rotational axis when the puller is rotated to the unlocked position, the lug being located to one side of the rotational axis when the puller is rotated to the locked position, and the lug being inserted into the rear end of the steering head.
In one embodiment, the handle includes a fixed sleeve, the fixed sleeve is fixed on the rear end of the instrument tube, the rear end of the traction piece extends out of the rear end of the instrument tube, the unlocking sleeve is fixed on the rear end of the traction piece, the traction driving mechanism includes an adjusting threaded sleeve and an elastic component, the adjusting threaded sleeve is located on the front side of the unlocking sleeve, the adjusting threaded sleeve is sleeved on the fixed sleeve and is in threaded fit with the fixed sleeve, and the elastic component is arranged between the unlocking sleeve and the handle and used for driving the unlocking sleeve to move forward.
In one embodiment, the handle comprises a tube seat located at the rear side of the unlocking sleeve, the rear end of the unlocking sleeve is in plug fit with the front end of the tube seat, a positioning mechanism is arranged between the rear end of the unlocking sleeve and the front end of the tube seat and used for limiting the unlocking sleeve to axially move and allowing the unlocking sleeve to rotate when the pulling piece rotates to the locking position, and limiting the unlocking sleeve to rotate and allowing the unlocking sleeve to axially move when the pulling piece rotates to the unlocking position.
In one embodiment, the handle comprises a tube seat positioned at the rear side of the unlocking sleeve, the rear end of the unlocking sleeve is in plug fit with the front end of the tube seat, the positioning mechanism comprises a locking boss arranged at the rear end of the unlocking sleeve or the front end of the tube seat and a channel which is arranged at the front end of the tube seat or the rear end of the unlocking sleeve and is matched with the locking boss, and the channel comprises a turning channel extending along the circumferential direction and an axial channel extending along the axial direction and communicated with one end of the turning channel; when the traction piece is located at the locking position, the locking boss is located in the rotary groove channel, and when the traction piece rotates to the unlocking position, the locking boss is located in the axial groove channel.
The advantageous effects of the additional features of the present invention will be explained in the detailed description section of the present specification.
Drawings
FIG. 1 is a front view of a visual direction change surgical power unit in an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a visual direction changing surgical power plant in an embodiment of the present invention;
FIG. 3 is a perspective view of a visual direction changing surgical power unit in an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the internal structure of a visual direction changing surgical power unit in an embodiment of the present invention;
FIG. 6 is an enlarged partial view of FIG. 5 at B;
FIG. 7 is a schematic perspective view of a steering head;
FIG. 8 is an enlarged, fragmentary view of a visual direction changing surgical power unit in an embodiment of the present invention;
fig. 9 is a perspective view of an unlocking sleeve and a tube seat of the visual direction-changing surgical power device in an embodiment of the invention.
Description of reference numerals: 10. a handle; 11. fixing a sleeve; 12. unlocking the sleeve; 121. locking the boss; 122. a status indicator symbol; 13. adjusting a threaded sleeve; 14. a tube holder; 141. an axial channel; 142. a rotary channel; 143. an up unlock state identifier; 144. a locking state identifier symbol; 15. a spring; 16. a handle body; 20. a cutter bar; 21. an outer cutter tube; 22. an inner cutter tube; 221. a ball head; 23. a drive joint; 40. a cutter head; 41. an outer cutter head; 42. an inner cutter head; 421. a spherical groove; 50. an instrument tube; 51. an inner auxiliary ear; 52. an inner ear hole; 60. a steering head; 61. an outer appendage; 62. an external ear canal; 63. a second connecting portion; 631. transverse opening; 632. erecting a port; 64. a guide groove; 70. a pulling member; 71. a first connection portion; 711. a transverse portion; 712. a vertical portion; 72. a lug; 80. a pin shaft; 90. a pilot screw head; 100. a camera; 101. a mounting member; 102. an image sensor; 103. an illuminating member.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the following embodiments, features in the embodiments may be combined without conflict.
As shown in fig. 1 and 2, the visual direction-changing surgical power device in one embodiment of the present invention includes a handle 10, a cutter, a tool bit direction-changing device, and a camera assembly, wherein the handle 10 is used for a doctor to hold. As an example, the handle 10 includes a handle body 16, a tube holder 14, and a fixing sleeve 11, the handle body 16 is three-forked to facilitate grasping, and the tube holder 14 is connected to a front end of the handle body 16.
The cutter is used for cutting off human tissues and comprises a cutter bar 20 and a cutter head 40, the rear end of the cutter bar 20 is connected with the handle 10, the front end of the cutter bar 20 is connected with the rear end of the cutter head 40 through a rotating connecting mechanism, and the cutter head 40 can rotate around a rotating axis X to adjust an included angle between the central line axis of the cutter head 40 and the central axis of the cutter bar 20.
The tool may be a planing tool, a grinding tool, a milling tool, or a drilling tool, and the planing tool is used as an example in the present embodiment. As shown in fig. 1 and 2, the tool bar 20 includes an outer tool tube 21 and an inner tool tube 22, the rear end of the outer tool tube 21 is fixed on the handle 10, and specifically, the rear end of the outer tool tube 21 passes through the fixing sleeve 11, the unlocking sleeve 12 and the adjusting screw 13 and is fixed in the inner holes of the tube seat 14 and the handle body 16. The inner knife pipe 22 is disposed inside the outer knife pipe 21 and can rotate circumferentially relative to the outer knife pipe 21, the rear end of the inner knife pipe 22 extends out of the outer knife pipe 21 and extends out of the rear end of the handle 10, and the rear end of the inner knife pipe 22 is connected with a driving joint 23, and the driving joint 23 is used for being connected with an output end of a driving device (not shown in the figure). The inner knife tube 22 is driven by the driving device to rotate circumferentially relative to the outer knife tube 21.
The cutter head 40 comprises an outer cutter head 41 and an inner cutter head 42, the inner cutter head 42 is rotatably arranged in the outer cutter head 41, the rear end of the inner cutter head 42 is connected with the front end of the inner cutter tube 22 through a rotating connection mechanism, and therefore the inner cutter head 42 can rotate around a rotation axis X while rotating under the driving of the inner cutter tube 22, and the direction changing is achieved. A cutting window is arranged on the tube wall of the outer cutter head 41 close to the front end, a cutting edge part is arranged at the front end of the inner cutter head 42, the cutting edge part is matched with the cutting window to cut off human tissues extending into the cutting window, and the rear end of the inner cutter head 42 extends out of the rear end of the outer cutter head 41 and is connected with the rotary connecting structure of the inner cutter tube 22.
The rotation connecting mechanism in this embodiment is a ball joint universal joint, which includes a spherical groove 421 provided on the rear end of the inner cutter head 42 and a ball 221 provided on the front end of the inner cutter tube 22 and engaged with the spherical groove 421, and the ball 221 is snapped into the spherical groove 421 and is rotatably engaged with the spherical groove 421. Alternatively, the rotary connection can also be a ball joint or the like.
The tool bit deviator is used to drive the tool bit 40 to rotate about the axis of rotation X. In one embodiment, the tool bit direction changing device comprises an instrument tube 50, a steering head 60, a traction piece 70 and a traction driving mechanism, wherein the instrument tube 50 is sleeved on the periphery of the tool bar 20 and the cable, and the rear end of the instrument tube 50 is inserted and fixed in the fixing sleeve 11 of the handle 10. The steering head 60 is sleeved on the periphery of the cutter head 40 and the camera head 100, and the rear end of the steering head 60 is rotatably connected with the front end of the instrument tube 50 around the rotating axis X.
There are various ways of connecting the rear end of the steering head 60 to the front end of the instrument tube 50, and as one example, as shown in fig. 6, two inner sub-ears 51 are provided at the front end of the instrument tube 50 so as to be opposed to each other in the direction of the rotation axis X, and an inner ear hole 52 is provided in the inner sub-ear 51. As shown in fig. 7, two outer sub-ears 61 are provided at the rear end of the steering head 60 so as to be opposed to each other in the direction of the rotation axis X, and an outer ear hole 62 is provided in the outer sub-ears 61. As shown in fig. 4, the two outer sub-ears 61 of the steering head 60 are respectively located outside the two inner sub-ears 51 of the instrument tube 50, the outer ear holes 62 on the outer sub-ears 61 are opposite to the inner ear holes 52 on the inner sub-ears 51, and the pin shaft 80 extending along the rotation axis X passes through the outer ear holes 62 and the inner ear holes 52 to rotatably connect the rear end of the steering head 60 with the front end of the instrument tube 50. The rear end of the steering head 60 and the front end of the instrument tube 50 may be connected by other rotation pairs, such as a circular hole provided in one of the rear end of the steering head 60 and the front end of the instrument tube 50, and a cylinder fitted into the circular hole and rotatably inserted into the circular hole.
The pulling member 70 is disposed in the instrument tube 50 and can move back and forth along the axial direction of the instrument tube 50, and the front end of the pulling member 70 is connected with the rear end of the steering head 60. The axial forward and backward movement of the pulling member 70 drives the steering head 60 to rotate about the rotation axis X. The front end of the pulling member 70 is connected to the rear end of the steering head 60 in various ways, for example, the front end of the pulling member 70 is connected to the rear end of the steering head 60 by a steel belt or by a rack and pinion mechanism.
The pulling member 70 may be linear, rod-shaped or tubular, and for convenience of assembly, the pulling member 70 in this embodiment is tubular, the pulling member 70 is received in the instrument tube 50, and the knife bar 20 and the cable are received in the pulling member 70.
In one embodiment, the retractor 70 is rotatable relative to the instrument tube 50 between an unlocked position (the position shown in fig. 3 and 4) and a locked position, the tool bit deviator further comprises an unlocking sleeve 12 disposed on the handle 10, the unlocking sleeve 12 is fixedly sleeved on the rear end of the retractor 70, and the unlocking sleeve 12 is used for driving the retractor 70 to rotate between the unlocked position and the locked position; a locking mechanism is provided between the front end of the puller 70 and the rear end of the steering head 60. When the pulling piece 70 is positioned at the unlocking position, the locking mechanism allows the rotating head 60 to rotate around the rotating axis, and when the pulling piece 70 is positioned at the locking position, the locking mechanism limits the rotating head 60 to rotate around the rotating axis, so that the visual direction-changing operation power device has the direction-changing function and the direction-unchangeable function at the same time, the functions are expanded, and different requirements of doctors are met.
The front end of the pulling member 70 is provided with a first connecting portion 71, the rear end wall of the steering head 60 on the side of the rotation axis is provided with a second connecting portion 63 which is engaged with the first connecting portion 71, and the front end of the pulling member 70 and the rear end of the steering head 60 are connected through the first connecting portion 71 and the second connecting portion 63. When the pulling member 70 is located at the unlocking position, the first connecting portion 71 is engaged with the second connecting portion 63, and when the pulling member 70 is located at the locking position, the first connecting portion 71 is disengaged from the second connecting portion 63. As an example, the first connecting portion 71 is T-shaped (as shown in fig. 6), the first connecting portion 71 includes a transverse portion 711 and a vertical portion 712, the second connecting portion 63 is a T-shaped notch (as shown in fig. 7) provided at the rear end of the steering head 60, the second connecting portion 63 includes a transverse port 631 extending in the circumferential direction of the steering head 60 and a vertical port 632 extending in the axial direction of the steering head 60, and the width of the vertical port 632 is smaller than the width of the vertical portion 712. Thus, when the retractor 70 is rotated to the unlocked position, the cross portion 711 snaps into the cross aperture 631 and can rotate within the cross aperture 631.
Preferably, the rear end of the steering head 60 is provided with two second connecting portions 63, and the two second connecting portions 63 are located on both sides of the rotation axis X, respectively. As shown in fig. 2 and 3, when the pulling member 70 rotates until the first connecting portion 71 is combined with the second connecting portion 63 on the upper side, the steering head 60 can rotate upwards, and when the pulling member 70 rotates until the first connecting portion 71 is combined with the second connecting portion 63 on the lower side, the steering head 60 can rotate downwards, so that the rotation range of the steering head 60 is greatly increased.
Preferably, a guide groove 64 extending in a circumferential direction is provided on an inner wall of the steering head 60 between the two second connecting portions 63, and the first connecting portion 71 slides along the guide groove 64 when the pulling member 70 rotates, so that the first connecting portion 71 rotates smoothly.
The locking mechanism comprises a lug 72 (see fig. 6) extending axially forward from the front face of the pulling member 70, the lug 72 being located on the axis of rotation X when the pulling member 70 is rotated to the unlocked position, the position of the lug 72 corresponding to the position of the inner counter lug 51, the steering head 60 being free to rotate. When the pulling member 70 is rotated to the locking position, the lug 72 is positioned on one side of the rotation axis X, the position of the lug 72 is offset from the position of the inner sub-lug 51, and the lug 72 is inserted into the rear end of the steering head 60 to restrict the steering head 60 from rotating.
The traction driving mechanism is arranged on the handle 10, connected with the rear end of the traction piece 70, and used for driving the traction piece 70 to move back and forth along the axial direction, so as to drive the steering head 60 to rotate around the rotation axis X, and further drive the cutter head and the camera 100 to synchronously rotate around the rotation axis X.
As shown in fig. 1 and 2, the drawing driving mechanism includes an adjusting screw 13 and an elastic component, the adjusting screw 13 is located at the front side of the unlocking sleeve 12, an external thread is provided on the outer peripheral surface of the rear end of the fixed sleeve 11, an internal thread matched with the external thread is provided on the inner wall of the adjusting screw 13, and the adjusting screw 13 is connected with the fixed sleeve 11 through the external thread and the internal thread. The elastic member is used to drive the unlocking sleeve 12 forward. In this embodiment, the elastic member is a spring 15, the rear end of the unlocking sleeve 12 is provided with a spring mounting groove, the front end of the spring 15 is mounted in the spring mounting groove, and the rear end is mounted in the tube seat 14.
In one embodiment, the rear end of the release sleeve 12 is in a plug-in fit with the front end of the base 14, and a positioning mechanism is provided between the rear end of the release sleeve 12 and the front end of the base 14 for limiting the axial movement of the release sleeve 12 and allowing the release sleeve 12 to rotate when the pull 70 is rotated to the locked position, and for limiting the rotation of the release sleeve 12 and allowing the axial movement of the release sleeve 12 when the pull 70 is rotated to the unlocked position.
In this embodiment, the rear end of the release sleeve 12 is inserted into the front end of the socket 14. As shown in fig. 9, the positioning mechanism includes a locking boss 121 provided on the outer peripheral surface of the rear end of the unlocking sleeve 12 and a groove provided on the inner wall of the socket 14 to be engaged with the locking boss 121. The slot includes a spiral slot 142 extending in a circumferential direction and an axial slot 141 extending in an axial direction and communicating with both ends of the spiral slot 142, respectively, and the locking projection 121 is slidable in the spiral slot 142 and the axial slot 141. Of course, as an alternative, the positions of the locking projection 121 and the groove may be reversed, i.e., the locking projection 121 is provided on the inner wall of the socket 14 and the groove is provided on the outer peripheral surface of the rear end of the lock release sleeve 12. The forward end of the socket 14 is inserted into the rearward end of the release sleeve 12.
For the doctor's operation, a status indicator 122 is provided on the outer peripheral surface of the front end of the lock release sleeve 12, and the status indicator 122 is located on the same axis as the lock projection 121. The outer circumferential surface of the socket 14 is provided with a locking state identification symbol 144, an upper unlocking state identification symbol 143, and a lower unlocking state identification symbol (not shown), the unlocking state identification symbol corresponding to the middle position of the turning groove 142, and the upper unlocking state identification symbol 143 and the lower unlocking state identification symbol (not shown) corresponding to the positions of the two axial grooves 141, respectively.
In one embodiment, the central hole of the unlocking sleeve 12 is a stepped hole, the unlocking sleeve 12 comprises a small hole section with a smaller central hole and a large hole section with a larger central hole, the small hole section is fixedly connected with the pulling member, the large hole section is sleeved on the guide screw head 90 and is in threaded fit with the guide screw head 90, and the guide screw head 90 is in clearance fit with the pulling member. In this way, the pilot screw 90 acts as a circumferential damping for the unlocking sleeve 12, and when the unlocking sleeve 12 is rotated to a certain angle, the pilot screw 90 keeps the unlocking sleeve 12 at that angle, avoiding rotational offset of the unlocking sleeve 12.
The camera assembly is used for collecting image signals and comprises a camera 100 and a cable (not shown in the figure), the camera 100 is connected with the cutter head 40 and rotates along with the rotation of the cutter head 40, and the front end of the cable is connected with the camera 100.
According to the visual direction-changing operation power device, the camera 100 is arranged on the cutter head 40, and the rotation angle of the cutter head and the visual field angle of the camera 100 are adjusted simultaneously through the cutter head direction-changing device, so that a doctor only needs to hold the device with one hand, and the operation difficulty of the doctor is reduced; moreover, the camera 100 and the cutter head are relatively static, so that the synchronous operation of the cutter head and the camera 100 is realized, the observation time of a doctor is saved, and the operation safety is greatly improved. Therefore, the visual direction-changing operation power device disclosed by the invention solves the problems that an endoscope tube needs to be integrally swung for adjusting the angle in an endoscopic operation and the operation instrument is inconvenient to adjust in a matching way by combining the endoscope with the operation power system.
As shown in fig. 8, the camera head 100 includes a mounting member 101, an image sensor 102, and an illuminating member 103, the mounting member 101 is fixed in the steering head 60, and the image sensor 102 and the illuminating member 103 are mounted on the mounting member 101. The image sensor 102 may be a CMOS (Complementary Metal Oxide Semiconductor) or CCD (Charge coupled device) chip, and the illuminator 103 may be an LED illuminator. As an example, the mounting member 101 has a cylindrical shape, the mounting member 101 is inserted into the steering head 60, the mounting member 101 and the steering head 60 are fixed by bonding or welding, an image sensor mounting hole and an illuminating member mounting hole are provided in the mounting member 101, and the image sensor 102 and the illuminating member 103 are respectively mounted in the image sensor mounting hole and the illuminating member mounting hole. The mounting member 101 is also provided with a mounting hole extending in the axial direction of the steering head 60, and the cutter head 40 is inserted into the mounting hole.
The working principle of the visual direction-changing operation power device is as follows:
before operation, the visual direction-changing operation power device is in an initial state, namely the included angle between the central line axis of the steering head 60 and the central line axis of the instrument tube 50 is zero, and the traction piece 70 is located at a locking position, namely the first connecting part 71 is separated from the second connecting part 63. Furthermore, the locking boss 121 of the unlocking sleeve 12 is positioned in the turning groove 142 of the tube seat 14 to limit the axial movement of the unlocking sleeve 12, and simultaneously, the unlocking sleeve 12 is in threaded connection with the guide screw 90 to limit the radial rotation of the unlocking sleeve 12, and the state indicator 122 of the unlocking sleeve 12 is opposite to the locking state indicator 144 of the tube seat 14.
When a physician inserts the steering head 60 and the instrument tube 50 into the human body through the duct, and the physician needs to adjust the visual field angle and the surgical cutting angle of the camera 100 in the patient, the unlocking is performed first, that is, the unlocking sleeve 12 is rotated by 90 degrees to the left or right by hand, the locking boss 121 is rotated to the terminal section in the steering channel 142, that is, positioned in the axial channel 141, the first connecting part 71 of the pulling member 70 is driven to be positioned in the second connecting part 63 on the upper side or the lower side of the steering head 60, and the status indicator symbol 122 of the unlocking sleeve 12 is opposite to the upper unlocking status indicator symbol 143 or the lower unlocking status indicator symbol of the tube socket 14.
After unlocking, the adjusting screw 13 is rotated, and the adjusting screw 13 moves backward in the axial direction, so that the locking boss 121 of the unlocking sleeve 12 enters the axial groove 141 of the tube seat 14, and the pulling member 70 is driven to move axially toward the rear end, so that the steering head 60 rotates upward or downward around the pin 80.
In the process of adjusting the steering angle, namely when the adjusting screw sleeve 13 is rotated to enable the unlocking sleeve 12 to axially move towards the rear end, the rear end of the unlocking sleeve 12 is subjected to the reaction force of the compression spring 15 towards the front side, the front end of the unlocking sleeve 12 is limited by the rear end face of the adjusting screw sleeve 13, the adjusting screw sleeve 13 is limited to move forwards by threaded connection between the adjusting screw sleeve 13 and the fixed sleeve 11, therefore, when the angle is adjusted by rotation is stopped, the spring 15 and the adjusting screw sleeve 13 lock the axial position of the unlocking sleeve 12, and the adjusting angle is fixed; at this time, the locking boss 121 enters the axial groove 141 of the socket 14, and the axial groove 141 restricts the circumferential rotation of the locking boss 121, thereby locking the circumferential rotation of the angularly adjusted unlocking sleeve 12.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. A visual direction-changing surgical power device, comprising:
a handle;
the cutter comprises a cutter bar and a cutter head, the rear end of the cutter bar is connected with the handle, the front end of the cutter bar is connected with the rear end of the cutter head through a rotating connecting mechanism, and the cutter head can rotate around a rotating axis to adjust an included angle between the central line axis of the cutter head and the central line of the cutter bar;
the tool bit direction changing device is used for driving the tool bit to rotate around the rotating axis;
it is characterized by also comprising:
the camera shooting assembly comprises a camera and a cable, the camera is connected with the cutter head and rotates along with the rotation of the cutter head around the rotation axis, and the front end of the cable is connected with the camera.
2. The visual direction-changing surgical power device as claimed in claim 1, wherein the tool bit direction-changing device comprises an instrument tube, a direction-changing head, a traction member and a traction driving mechanism, the instrument tube is sleeved on the peripheries of the tool bar and the cable, the rear end of the instrument tube is fixed on the handle, the steering head is sleeved on the peripheries of the tool bit and the camera, the rear end of the steering head is connected with the front end of the instrument tube in a manner of rotating around the rotating axis, the traction piece is arranged in the instrument tube, and can move back and forth along the axial direction of the instrument tube, the front end of the traction piece is connected with the rear end of the steering head, the traction driving mechanism is arranged on the handle, and the traction driving mechanism is connected with the rear end of the traction piece and is used for driving the traction piece to move back and forth along the axial direction of the instrument tube.
3. The visual direction changing surgical power unit of claim 2 wherein said camera includes a mounting member, an image sensor and an illuminating member, said mounting member being fixed within said steering head, said image sensor and said illuminating member being mounted on said mounting member.
4. The powered, visual direction changing surgical device of claim 2 wherein said pull member is tubular, said pull member being received within said instrument tube, said knife bar and said cable being received within said pull member.
5. The visual direction changing surgical power device as claimed in claim 4, wherein the retractor is rotatable relative to the instrument tube between an unlocked position and a locked position, and an unlocking sleeve for driving the retractor to rotate between the unlocked position and the locked position is provided on the handle; a locking mechanism is arranged between the front end of the traction piece and the rear end of the steering head, when the traction piece is located at the unlocking position, the locking mechanism allows the rotating head to rotate around the rotating axis, and when the traction piece is located at the locking position, the locking mechanism limits the rotating head to rotate around the rotating axis.
6. The visual direction-changing surgical power device as claimed in claim 5, wherein a first connecting part is arranged at the front end of the traction member, a second connecting part matched with the first connecting part is arranged on the rear end wall of the steering head on one side of the rotation axis, and the front end of the traction member is connected with the rear end of the steering head through the first connecting part and the second connecting part; when the pulling piece is located at the unlocking position, the first connecting portion is combined with the second connecting portion, and when the pulling piece is located at the locking position, the first connecting portion is separated from the second connecting portion.
7. The visual direction changing surgical power device of claim 5, wherein the locking mechanism includes a lug extending axially forward from a front face of the retractor, the lug being located on the rotational axis when the retractor is rotated to the unlocked position, the lug being located to one side of the rotational axis when the retractor is rotated to the locked position, and the lug being inserted into a rear end of the steering head.
8. The visual direction-changing surgical power device as claimed in claim 5, wherein the handle includes a fixing sleeve, the fixing sleeve is fixed on the rear end of the instrument tube, the rear end of the traction member extends out of the rear end of the instrument tube, the unlocking sleeve is fixed on the rear end of the traction member, the traction driving mechanism includes an adjusting threaded sleeve and an elastic component, the adjusting threaded sleeve is located on the front side of the unlocking sleeve, the adjusting threaded sleeve is sleeved on the fixing sleeve and is in threaded fit with the fixing sleeve, and the elastic component is arranged between the unlocking sleeve and the handle and used for driving the unlocking sleeve to move forward.
9. The visual direction-changing surgical power device as claimed in claim 5, wherein the handle comprises a tube seat located at the rear side of the unlocking sleeve, the rear end of the unlocking sleeve is in plug fit with the front end of the tube seat, and a positioning mechanism is arranged between the rear end of the unlocking sleeve and the front end of the tube seat, and is used for limiting the axial movement of the unlocking sleeve and allowing the unlocking sleeve to rotate when the pulling member rotates to the locking position, and limiting the rotation of the unlocking sleeve and allowing the axial movement of the unlocking sleeve when the pulling member rotates to the unlocking position.
10. The visual direction-changing surgical power device as claimed in claim 9, wherein the handle includes a tube seat located at the rear side of the unlocking sleeve, the rear end of the unlocking sleeve is in insertion fit with the front end of the tube seat, the positioning mechanism includes a locking boss provided at the rear end of the unlocking sleeve or the front end of the tube seat and a channel provided at the front end of the tube seat or the rear end of the unlocking sleeve and engaged with the locking boss, the channel includes a turning channel extending in the circumferential direction and an axial channel extending in the axial direction and communicating with one end of the turning channel; when the traction piece is located at the locking position, the locking boss is located in the rotary groove channel, and when the traction piece rotates to the unlocking position, the locking boss is located in the axial groove channel.
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| CN201911419143.5A CN111035418B (en) | 2019-12-31 | 2019-12-31 | Visual direction-changing operation power device |
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| CN201911419143.5A CN111035418B (en) | 2019-12-31 | 2019-12-31 | Visual direction-changing operation power device |
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| CN111035418B CN111035418B (en) | 2021-04-16 |
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| CN111035418B (en) | 2021-04-16 |
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