CN107441641B - Protection device for ultrasonic knife - Google Patents
Protection device for ultrasonic knife Download PDFInfo
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- CN107441641B CN107441641B CN201710687169.2A CN201710687169A CN107441641B CN 107441641 B CN107441641 B CN 107441641B CN 201710687169 A CN201710687169 A CN 201710687169A CN 107441641 B CN107441641 B CN 107441641B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
- A61N7/02—Localised ultrasound hyperthermia
- A61N7/022—Localised ultrasound hyperthermia intracavitary
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
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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
- A61B90/04—Protection of tissue around surgical sites against effects of non-mechanical surgery, e.g. laser surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00565—Bone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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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
- A61B90/04—Protection of tissue around surgical sites against effects of non-mechanical surgery, e.g. laser surgery
- A61B2090/0409—Specification of type of protection measures
- A61B2090/0427—Prevention of contact
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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
- A61B90/04—Protection of tissue around surgical sites against effects of non-mechanical surgery, e.g. laser surgery
- A61B2090/0472—Protection of tissue around surgical sites against effects of non-mechanical surgery, e.g. laser surgery against ultrasound energy
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- Oral & Maxillofacial Surgery (AREA)
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Abstract
The invention discloses a protection device for an ultrasonic knife. The protection device comprises: a clamping device and a protective head (3) arranged on the clamping device; the clamping device comprises: a first force arm (1) and a second force arm (2) hinged to the first force arm (1); the front end of the first force arm (1) is fixedly provided with a protection head (3); an ultrasonic knife (100) is fixedly arranged on the second force arm (2), and the ultrasonic knife (100) is fixed in a mode that a knife head faces the front end of the second force arm (2); the first force arm (1) and the second force arm (2) rotate relatively by taking the hinge point as a fulcrum, so that the cutter head of the ultrasonic cutter (100) is abutted against or separated from the protection head (3). The protection device can separate the bone tissue from the soft tissue before cutting, and the ultrasonic knife is prevented from touching the soft tissue during cutting, so that the problem that the soft tissue is easily damaged by contact in an ultrasonic cutting operation of the bone tissue is solved, the misoperation probability of doctors is greatly reduced, and the safety of the operation is improved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a protection device for an ultrasonic knife.
Background
The ultrasonic knife utilizes the extremely strong penetrating power of ultrasonic waves, hundreds of high-energy ultrasonic waves emitted by the sound wave generator collect the focus on tissues like collecting solar energy, the cell membranes of the tissues are broken by utilizing high-energy ultrasonic cavitation operation, and simultaneously, the high-energy ultrasonic waves release huge energy to be quickly converted into heat energy, and the temperature of the tissues at the instantaneous focus reaches 70-100 ℃, so that the cutting is performed.
Ultrasonic blades are often used as an important surgical device for surgical operations in a variety of surgical procedures including soft tissue and bone tissue cutting. In the process of cutting bone tissue, because the ultrasonic osteotome has higher power, if the ultrasonic osteotome is operated near critical soft tissues such as spinal cord, nerves and the like, the ultrasonic osteotome is easy to contact with the soft tissues, and the soft tissues can be damaged by a little careless way, so that medical accidents are caused.
Disclosure of Invention
The invention aims to provide a protection device which separates bone tissue and soft tissue in an ultrasonic cutting operation and protects the soft tissue from being cut by an ultrasonic knife.
According to an aspect of the present invention, there is provided a protection device for an ultrasonic blade, comprising: the device comprises a clamping device and a protection head arranged on the clamping device; the clamping device comprises: a first moment arm and a second moment arm hinged to the first force arm; the front end of the first force arm is fixedly provided with the protection head; the ultrasonic knife is fixedly arranged on the second force arm, and the ultrasonic knife is fixed in a mode that a knife head faces the front end of the second force arm; the first force arm and the second force arm rotate relatively by taking the hinge joint as a fulcrum, so that the cutter head of the ultrasonic knife is abutted against or far away from the protection head.
Further, the protection device is characterized in that the first force arm is bent or straight and comprises a base rod extending transversely and a first hand-held part extending longitudinally from the rear end of the base rod; the second force arm comprises a movable sliding block and a second handheld part; the second handheld part is hinged at the joint of the base rod and the first handheld part, and rotates by taking the hinged part as a fulcrum; the top of the second handheld part is movably connected with the movable sliding block, the movable sliding block is arranged on the base rod, and the movable sliding block slides along the base rod by taking the base rod as a guide rail under the pushing action of the top of the second handheld part.
Further, the protection device is characterized in that a through hole which can enable the top end of the second handheld part to pass through is formed in the position where the first force arm is hinged with the second force arm; the top end of the second handheld part penetrates through the through hole to be movably connected with the movable sliding block.
Further, the protection device is characterized in that the first arm of force is in a transverse extension shape with a bend at the middle part, and comprises a connecting arm, a third handheld part and a bending part connected between the connecting arm and the third handheld part; the second force arm comprises an ultrasonic knife fixing sleeve and a fourth handheld part fixed on one side of the ultrasonic knife fixing sleeve; the front end of the ultrasonic knife fixing sleeve is hinged with the bending part, and can rotate by taking the hinged part as a fulcrum.
Further, the protection device, wherein the second hand-held portion is curved toward the front end at a portion near the tip; the second handle portion is curved toward the rear end at a portion near the bottom end.
Further, the protection device is characterized in that a first ultrasonic knife fixing ring is arranged at the front end of the movable sliding block; the rear end of the movable sliding block is provided with a second ultrasonic knife fixing ring; the diameters of the first ultrasonic knife fixing ring and the second ultrasonic knife fixing ring are respectively matched with the diameter of the ultrasonic knife part to be fixed.
Further, the protection device, wherein, be provided with resetting means on the base pole, resetting means is used for realizing the reset of first handheld portion and second handheld portion.
Further, the protection device, the reset device includes: a first elastic sheet and a second elastic sheet; one end of the first elastic sheet is fixed on the second handheld part; one end of the second elastic sheet is fixed at one end of the first handheld part; the other end of the first elastic sheet is fixedly connected with the other end of the second elastic sheet.
Further, the protection device, wherein the third hand-hold part and the fourth hand-hold part are ring-shaped; the third handheld part is provided with a through hole which can accommodate at least one finger to pass through; the fourth handheld part is provided with a through hole which can accommodate at least two fingers to pass through.
Further, the shape of the protection head is a curved rectangle, rectangle or ellipse.
The ultrasonic knife is arranged on the protective device, and before cutting, the protective device is controlled to separate the bone tissue from the soft tissue, and the protective device is arranged between the ultrasonic knife and the soft tissue during cutting, so that the ultrasonic knife is prevented from touching the soft tissue. Therefore, the problem that soft tissues are easily damaged due to the fact that cutting power is high in the ultrasonic bone tissue cutting operation is solved, misoperation probability of doctors is greatly reduced, and operation safety is improved.
Drawings
FIGS. 1a and 1b are schematic structural views of a first embodiment of the protection device of the present invention;
FIG. 1a is a schematic view of an ultrasonic blade prior to installation into a protective device;
FIG. 1b is a schematic view of the ultrasonic blade after it has been mounted to the guard;
FIG. 2 is a schematic cross-sectional view of the first moment arm of FIG. 1 b;
FIG. 3 is a schematic diagram of the structure of the reset device in FIG. 2 after being pressed;
FIG. 4 is a schematic view of a second embodiment of the protective device of the present invention;
FIG. 5 is a schematic view of the structure of one embodiment of the protective head of the protective device of the present invention;
FIG. 6 is a schematic view of another embodiment of a protective head of the protective device of the present invention;
FIG. 7 is a schematic view of another embodiment of a protective head of the protective device of the present invention;
FIG. 8 is a schematic view of another embodiment of a protective head of the protective device of the present invention;
FIG. 9 is a schematic view of another embodiment of a protective head of the protective device of the present invention;
fig. 10 is a schematic structural view of another embodiment of the protective head of the protective device of the present invention.
Reference numerals:
0. fulcrum, 100, ultrasonic knife, 101, knife head,
1. a first arm of force, 1-1, a base rod, 1-2, a first hand-held part, 1-3, a connecting arm, 1-4, a third hand-held part, 1-5, a bending part,
2. a second force arm 2-1, a movable slide block, a second hand-held part 2-2, an ultrasonic knife fixing sleeve 2-3, a fourth hand-held part 2-4,
3. a protection head, 4, a first ultrasonic knife fixing ring, 5, a second ultrasonic knife fixing ring,
6. the reset device comprises a reset device 6-1, a first elastic piece, a reset device 6-2 and a second elastic piece.
Detailed Description
The objects, technical solutions and advantages of the present invention will become more apparent by the following detailed description of the present invention with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
In the prior art, the ultrasonic knife is easy to touch soft tissues in the process of cutting bone tissues because the bone tissues and the soft tissues are very close to each other and sometimes even abut against each other in the process of surgery. Although the ultrasonic blade itself has some soft tissue protection capability and can stop cutting when it encounters soft tissue, it is not possible to guarantee nerve tissue safety one hundred percent once it is cut, because some soft tissue is particularly fragile (e.g., nerve tissue).
In order to improve the safety of the ultrasonic knife in the operation process and prevent the ultrasonic knife from touching soft tissues when cutting bone tissues, the invention provides a protection device for the ultrasonic knife. Before operation, an ultrasonic knife is fixed on the protective device. In the operation process, the bone tissue and the soft tissue are subjected to blunt separation by operating the protecting device, and in the process of cutting the bone tissue by the ultrasonic knife, the protecting device is interposed between the ultrasonic knife and the soft tissue, so that the ultrasonic knife is prevented from touching the soft tissue, the soft tissue is protected, and the operation accident is avoided.
The protection device provided by the invention comprises a clamping device and a protection head fixedly arranged at the front end of the clamping device. When the ultrasonic knife is used, the ultrasonic knife is fixed on the clamping device, so that the front end of the ultrasonic knife is close to the protection head. It should be noted that, the front end refers to an end close to the tissue to be cut during the operation, and the rear end refers to an end far away from the tissue to be cut during the operation. Specifically, the clamping device comprises a first force arm and a second force arm. The first force arm and the second force arm are mutually hinged and rotate relatively by taking the hinged position as a fulcrum. Specifically, the first force arm and the second force arm are hinged at the middle positions of the first force arm and the second force arm. The front end of the first force arm is fixedly provided with a protection; the ultrasonic knife is fixedly arranged on the second force arm, the ultrasonic knife is fixed in a mode that the cutter head faces the front end of the second force arm, the distance d1 between the protection head 3 and the supporting point is different from the distance d2 between the cutter head of the ultrasonic knife and the supporting point in a preset range, and the preset range can meet the condition that the cutter head of the ultrasonic knife is completely or partially attached to the protection head 3.
The invention has the following action principle:
the first force arm is used as a static reference object, the hinge joint of the first force arm and the second force arm is used as a rotating fulcrum, and when the rear end of the second force arm is driven to rotate by taking the hinge joint as the fulcrum, the front end of the second force arm moves in the opposite direction to the rear end of the second force arm by taking the hinge joint as the fulcrum. At this time, the front end of the second force arm is close to or far from the front end of the first force arm during the whole movement of the second force arm. Because the front end of the first force arm is fixedly provided with the protection head, the ultrasonic knife is fixed on the second force arm, and the front end of the ultrasonic knife is the front end of the second force arm at the moment, so that the front end of the ultrasonic knife approaches or is far away from the protection head in the whole movement process of the second force arm.
In the operation process, the rear end of the first force arm or the second force arm is driven to rotate, so that the front end of the ultrasonic knife and the protective head are in a separated state. Since the protective head is blunt, it does not cause any damage to the soft tissue when it touches the soft tissue, it can be inserted between the soft tissue and the bone tissue, and the soft tissue is squeezed apart from the bone tissue, and the protective head is interposed between the soft tissue and the bone tissue. Then, the rear end of the first force arm or the second force arm is driven to rotate, so that the front end of the ultrasonic knife is close to the protecting head, and meanwhile, the ultrasonic knife is close to bone tissue, and further, the bone tissue is cut.
Fig. 1a and 1b are schematic structural views of a first embodiment of a clamping device in a protective device according to the invention. Wherein fig. 1a is a schematic view of an ultrasonic blade prior to installation into a protective device; fig. 1b is a schematic view of the ultrasonic blade after being mounted to the guard.
As shown in fig. 1a, in the present embodiment, the gripping device is provided as a pistol type. Specifically, the first arm 1 has a substantially L-shaped bent shape. The first force arm 1 includes a transversely extending base shaft 1-1 and a first hand-held portion 1-2 extending longitudinally from a rear end of the base shaft 1-1. The angle between the base shaft 1-1 and the first hand-held portion 1-2 may be an obtuse angle as shown in fig. 1a, or may be an obtuse angle or other angles. The base rod 1-1 and the first hand-held portion 1-2 may be integrally formed in the manner shown in fig. 1a, or may be fixedly connected in a non-detachable manner such as welding, bonding, or may be fixedly connected by a connecting member such as a screw or a bolt.
The second arm 2 includes a second handle 2-2 and a movable slider 2-1. The second hand-held part 2-2 is hinged at the joint of the base rod 1-1 and the first hand-held part 1-2, and rotates by taking the hinge as a fulcrum 0. The top end of the second handheld part 2-2 is movably connected with a movable sliding block 2-1, the movable sliding block 2-1 is arranged on the base rod 1-1, and the movable sliding block 2-1 slides along the base rod 1-1 by taking the base rod 1-1 as a guide rail under the pushing action of the top end of the second handheld part 2-2.
Principle of action of the present embodiment:
as shown in fig. 1b, when the second hand-held portion 2-2 is pulled in the direction of arrow a, since the second hand-held portion 2-2 is hinged at point O, the bottom end of the second hand-held portion 2-2 is drawn toward the first hand-held portion 1-2, and the top end of the second hand-held portion 2-2 moves away from the first hand-held portion 1-2 with the point O as the fulcrum 0. Because the top end of the second handheld part 2-2 is movably connected with the movable slide block 2-1, the movement of the second handheld part 2-2 drives the movable slide block 2-1 to slide along the base rod 1-1 from the rear end to the front end of the base rod 1-1 by taking the base rod 1-1 as a guide rail. Because the protective head 3 is fixedly arranged at the front end of the base rod 1-1, the ultrasonic knife 100 is fixed on the movable slide block 2-1, and therefore, the sliding of the movable slide block 2-1 drives the ultrasonic knife 100 to draw close to the protective head 3. Otherwise, the sliding of the movable slider 2-1 drives the ultrasonic blade 100 to move away from the protective head 3.
FIG. 2 is a schematic cross-sectional view of the first moment arm of FIG. 1 b; fig. 4 is a schematic diagram of the structure of the reset device in fig. 3 after being pressed.
As shown in fig. 2, the first arm 1 is provided with a through hole at a position hinged with the second arm 2 to enable the top end of the second hand-held part 2-2 to pass through; the top end of the second handheld part 2-2 penetrates through the through hole and is movably connected with the movable sliding block 2-1.
In another embodiment of the invention, as shown in fig. 2 and 3, on the basis of the previous example of the protection device, a resetting device 6 is provided in order to enable the second hand-held portion 2-2 to return automatically after pulling. The resetting means 6 comprise means for achieving an automatic resetting of the first and second hand-held portions.
Specifically, the return means includes a first elastic sheet 6-1 and a second elastic sheet 6-2. One end of the first elastic sheet 6-1 is fixed on the second handheld part 2-2; one end of the second elastic sheet 6-2 is fixed at one end of the first hand-held part 1-2; the other end of the first elastic sheet 6-1 is fixedly connected with the other end of the second elastic sheet 6-2. The bottom end of the first elastic sheet 6-1 is shown secured to the second handle portion 2-2. The bottom end of the 6-2 of the second elastic sheet is fixed on the first hand-holding part 1-2. The top end of the first elastic sheet 6-1 is fixedly connected with the top end of the second elastic sheet 6-2. However, the scope of the present invention is not limited thereto, and other elastic sheet fixing means capable of achieving the resetting are also within the scope of the present invention, for example, the top end of the first elastic sheet 6-1 may be fixed to the second handheld portion 2-2. The top end of the 6-2 of the second elastic sheet is fixed on the first hand-holding part 1-2. The bottom end of the first elastic sheet 6-1 is fixedly connected with the bottom end of the second elastic sheet 6-2.
Fig. 4 is a schematic structural view of a second embodiment of the clamping device in the protection device of the present invention.
As shown in fig. 4, in the present embodiment, the holding device is provided as scissors. Specifically, the first arm 1 has a curved lateral extension in the middle. The first moment arm 1 includes a connecting arm 1-3, a third hand-held portion 1-4, and a bending portion 1-5 connected between the connecting arm 1-3 and the third hand-held portion 1-4. The connecting arm 1-3, the third handheld part 1-4 and the bending part 1-5 can be integrally formed, can be fixedly connected in a non-detachable mode such as welding, bonding and the like, and can be fixedly connected by adopting connecting pieces such as screws, bolts and the like.
The second force arm 2 comprises an ultrasonic knife fixing sleeve 2-3 and a fourth handheld part 2-4 fixed on one side of the ultrasonic knife fixing sleeve 2-3; the front end of the ultrasonic knife fixing sleeve 2-3 is hinged on the bending part 1-5, and can rotate by taking the hinged part as a fulcrum 0. The front and rear ends of the ultrasonic-blade-fixing sleeve 2-3 have through holes and communicate so that the ultrasonic blade 100 can be fixed in the ultrasonic-blade-fixing sleeve 2-3 through the through holes.
Principle of action of the present embodiment: as shown in fig. 4, when the third and fourth handpieces 1-4 and 2-4 are manipulated in the directions of arrows b and c, since the ultrasonic-blade-fixing sleeve 2-3 and the bending portion 1-5 are hinged at the O-point, the protective head 3 is fixedly provided at the front end of the base rod 1-1, and the ultrasonic blade 100 is inserted into the ultrasonic-blade-fixing sleeve 2-3, the third handpiece 1-4 moves in the direction of arrow c, the fourth handpiece 2-4 moves in the direction of arrow b, the tool bit of the ultrasonic blade 100 moves in the direction of arrow f, and the protective head 3 moves in the direction of arrow e, thereby moving the tool bit of the ultrasonic blade 100 in a direction away from the protective head 3. Otherwise, the cutter head of the ultrasonic blade 100 is brought close to the protective head 3.
The function of the bent portion 1-5 is to make the connection arm 1-3 and the third hand-held portion 1-4 not be at the same level, so that the protective head 3 provided at the front end of the connection arm 1-3 can be located at one side of the cutter head of the ultrasonic blade 100.
In another embodiment of the invention, the second handle portion 2-2 is shaped to be ergonomically shaped for a more comfortable and convenient grip by the physician, based on the previous examples of the protective device. Specifically, the second hand-held portion 2-2 is curved toward the front end at a portion near the tip; the second hand-held portion 2-2 is curved toward the rear end at a portion near the bottom end.
In another embodiment of the present invention, based on the foregoing example of the protection device, in order to fix the ultrasonic blade 100 on the movable slider 2-1, a first ultrasonic-blade fixing ring 4 is provided at the front end of the movable slider 2-1; a second ultrasonic knife fixing ring 5 is arranged at the rear end of the movable slide block 2-1; the diameters of the first ultrasonic knife fixing ring 4 and the second ultrasonic knife fixing ring 5 are respectively matched with the diameters of ultrasonic knife parts to be fixed, so that ultrasonic knives are sleeved in the first ultrasonic knife fixing ring 4 and the second ultrasonic knife fixing ring 5 to be fixed on the movable sliding block 2-1.
In another embodiment of the present invention, based on the foregoing example of the protection device, in order to allow a doctor to conveniently hold and manipulate the third hand-held portion 1-4 and the fourth hand-held portion 2-4, the third hand-held portion 1-4 and the fourth hand-held portion 2-4 are ring-shaped; the third handheld part 1-4 is provided with a through hole which can accommodate at least one finger to pass through; the fourth hand-held part 2-4 is provided with a through hole which can accommodate at least two fingers to pass through.
FIG. 5 is a schematic view of the structure of one embodiment of the protective head of the protective device of the present invention; FIG. 6 is a schematic view of another embodiment of a protective head of the protective device of the present invention; FIG. 7 is a schematic view of another embodiment of a protective head of the protective device of the present invention; FIG. 8 is a schematic view of another embodiment of a protective head of the protective device of the present invention; FIG. 9 is a schematic view of another embodiment of a protective head of the protective device of the present invention; fig. 10 is a schematic structural view of another embodiment of the protective head of the protective device of the present invention.
The protection device provided by the invention, as shown in fig. 5-10, can be used for protecting a blade shaped as a sheet, a spoon, a rectangle, a wedge. The illustrated protective head 3 can be adjusted accordingly to the shape of the cutter head. Specifically, the cutter head may be provided in a curved rectangular, rectangular or elliptical shape, or the like.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and are in no way limiting of the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (9)
1. A protective device for an ultrasonic blade, comprising: a clamping device and a protective head (3) arranged on the clamping device;
the clamping device comprises: a first force arm (1) and a second force arm (2) hinged to the first force arm (1);
the front end of the first force arm (1) is fixedly provided with the protection head (3);
the ultrasonic knife (100) is fixedly arranged on the second force arm (2), and the ultrasonic knife (100) is fixed in a mode that a knife head faces the front end of the second force arm (2);
the first force arm (1) and the second force arm (2) relatively rotate by taking the hinge part as a fulcrum, so that the cutter head of the ultrasonic cutter (100) is abutted against or far away from the protection head (3);
the first force arm (1) is bent or straight and comprises a base rod (1-1) extending transversely and a first hand-held part (1-2) extending longitudinally from the rear end of the base rod (1-1) as a starting point;
the second force arm (2) comprises a movable sliding block (2-1) and a second handheld part (2-2); the second handheld part (2-2) is hinged at the joint of the base rod (1-1) and the first handheld part (1-2), and rotates by taking the hinge as a fulcrum; the top end of the second handheld part (2-2) is movably connected with the movable sliding block (2-1), the movable sliding block (2-1) is arranged on the base rod (1-1), and the movable sliding block (2-1) slides along the base rod (1-1) by taking the base rod (1-1) as a guide rail under the pushing action of the top end of the second handheld part (2-2).
2. The protection device according to claim 1, wherein,
the first force arm (1) is provided with a through hole which can enable the top end of the second hand-held part (2-2) to pass through at a position hinged with the second force arm (2); the top end of the second handheld part (2-2) penetrates through the through hole to be movably connected with the movable sliding block (2-1).
3. The protection device according to claim 1, wherein,
the first force arm (1) is in a transverse extension shape with a bend at the middle part, and comprises a connecting arm (1-3), a third handheld part (1-4) and a bending part (1-5) connected between the connecting arm (1-3) and the third handheld part (1-4);
the second force arm (2) comprises an ultrasonic knife fixing sleeve (2-3) and a fourth handheld part (2-4) fixed on one side of the ultrasonic knife fixing sleeve (2-3);
the front end of the ultrasonic knife fixing sleeve (2-3) is hinged with the bending part (1-5) and can rotate by taking the hinged part as a fulcrum.
4. The protection device according to claim 1, wherein,
the second hand-held part (2-2) is bent toward the front end at a portion near the tip;
the second hand-held portion (2-2) is curved toward the rear end at a portion near the bottom end.
5. The protection device according to claim 1, wherein,
the front end of the movable sliding block (2-1) is provided with a first ultrasonic knife fixing ring (4);
the rear end of the movable sliding block (2-1) is provided with a second ultrasonic knife fixing ring (5);
the diameters of the first ultrasonic knife fixing ring (4) and the second ultrasonic knife fixing ring (5) are respectively matched with the diameter of the ultrasonic knife part to be fixed.
6. Protection device according to claim 1, wherein the base lever (1-1) is provided with a resetting device (6), the resetting device (6) being adapted to effect resetting of the first (1-2) and second (2-2) handhelds.
7. The protection device according to claim 6, wherein,
the resetting device comprises: a first elastic sheet (6-1) and a second elastic sheet (6-2);
one end of the first elastic sheet (6-1) is fixed on the second handheld part (2-2);
one end of the second elastic sheet (6-2) is fixed on the first handheld part (1-2);
the other end of the first elastic sheet (6-1) is fixedly connected with the other end of the second elastic sheet (6-2).
8. A protection device according to claim 3, wherein,
the third hand-held part (1-4) and the fourth hand-held part are annular;
the third handheld part (1-4) is provided with a through hole which can accommodate at least one finger to pass through;
the fourth handheld part (2-4) is provided with a through hole which can accommodate at least two fingers to pass through.
9. A protection device according to any one of claims 1-6, the shape of the protection head (3) being curved rectangular, oblong or elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687169.2A CN107441641B (en) | 2017-08-11 | 2017-08-11 | Protection device for ultrasonic knife |
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| CN107441641B true CN107441641B (en) | 2023-09-08 |
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| CN108852468B (en) * | 2018-07-16 | 2023-06-27 | 无锡市中医医院 | Novel ultrasonic knife and use method thereof |
| CN112155671A (en) * | 2020-10-13 | 2021-01-01 | 常州安康医疗器械有限公司 | Transverse moving ultrasonic knife with offset chuck |
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| CN201920894U (en) * | 2010-11-18 | 2011-08-10 | 李超 | Ultrasonic scalpel handle |
| CN204293229U (en) * | 2014-11-28 | 2015-04-29 | 徐胜前 | A kind of ultrasonic surgical blade |
| CN104783866A (en) * | 2015-04-24 | 2015-07-22 | 重庆康美唯外科器械有限公司 | Ultrasonic knife bar assembly, ultrasonic knife thereof and ultrasonic knife control system |
| CN106034396A (en) * | 2013-09-19 | 2016-10-19 | 伊西康内外科有限责任公司 | Alignment features for ultrasonic surgical instrument |
| CN205885497U (en) * | 2016-06-23 | 2017-01-18 | 山东威瑞外科医用制品有限公司 | Ultrasonic knife head with centre gripping arm drive assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9743946B2 (en) * | 2013-12-17 | 2017-08-29 | Ethicon Llc | Rotation features for ultrasonic surgical instrument |
| US10327796B2 (en) * | 2014-12-19 | 2019-06-25 | Ethicon Llc | Ultrasonic surgical instrument with dual modes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201920894U (en) * | 2010-11-18 | 2011-08-10 | 李超 | Ultrasonic scalpel handle |
| CN106034396A (en) * | 2013-09-19 | 2016-10-19 | 伊西康内外科有限责任公司 | Alignment features for ultrasonic surgical instrument |
| CN204293229U (en) * | 2014-11-28 | 2015-04-29 | 徐胜前 | A kind of ultrasonic surgical blade |
| CN104783866A (en) * | 2015-04-24 | 2015-07-22 | 重庆康美唯外科器械有限公司 | Ultrasonic knife bar assembly, ultrasonic knife thereof and ultrasonic knife control system |
| CN205885497U (en) * | 2016-06-23 | 2017-01-18 | 山东威瑞外科医用制品有限公司 | Ultrasonic knife head with centre gripping arm drive assembly |
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