CN110584751A - Binding clip for prolonging service life of ultrasonic cutting hemostatic knife - Google Patents
Binding clip for prolonging service life of ultrasonic cutting hemostatic knife Download PDFInfo
- Publication number
- CN110584751A CN110584751A CN201910924565.1A CN201910924565A CN110584751A CN 110584751 A CN110584751 A CN 110584751A CN 201910924565 A CN201910924565 A CN 201910924565A CN 110584751 A CN110584751 A CN 110584751A
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- jaw
- cushion block
- shaped
- wedge
- ultrasonic cutting
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- 230000002439 hemostatic effect Effects 0.000 title claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 65
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000004033 plastic Substances 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 9
- 210000004204 blood vessel Anatomy 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 206010020772 Hypertension Diseases 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000023597 hemostasis Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B2017/320071—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with articulating means for working tip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
- A61B2017/320082—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic for incising tissue
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Dentistry (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model provides an improve ultrasonic cutting hemostatic scalpel life's binding clip, includes that the metal is kept silent and is kept silent the cushion, the metal is kept silent including setting up at the draw-in groove district of front end and setting up the cartridge district at the rear end, the metal is kept silent and is equipped with the draw-in groove in the draw-in groove district, the cushion of keeping silent includes the cushion main part, set up at cushion main part tail end with cartridge district size assorted dop and set up in the cushion main part with draw-in groove size assorted slider, the cushion of keeping silent passes through the slider cartridge in the draw-in groove of keeping silent to the cartridge targets in place the back the dop of the cushion of keeping silent with clamp district inner wall tight fit with cartridge in the cartridge district, this device structural design is ingenious, can realize the quick replacement damage's binding clip cushion, prolongs ultrasonic cutting hemostatic scalpel's life, improves surgery efficiency, reduces to.
Description
Technical Field
The invention relates to the technical field of medical scalpels, in particular to a forceps head for prolonging the service life of an ultrasonic cutting hemostatic scalpel.
Background
With the development of the endoscope minimally invasive surgery, the ultrasonic cutting hemostatic scalpel has the advantages of coagulation and hemostasis while cutting tissues, so that the instrument is widely applied to the surgical operation and becomes an essential surgical instrument in various surgical operations. Meanwhile, the ultrasonic cutting hemostatic knife is a surgical instrument with high price and precise structure, the plastic cushion block of the forceps head on the ultrasonic cutting hemostatic knife is the most easily-worn part on the whole instrument, and once the plastic cushion block is damaged, the knife bar is directly rubbed with the metal forceps head, so that the service life of the knife bar is seriously shortened, the work of the whole ultrasonic knife is influenced, and the whole instrument is scrapped. At present, the binding clip cushion of the ultrasonic cutting hemostatic knife used by the hospital is not replaceable, and the hospital can not replace the easily damaged insert in time, so that the operation efficiency is undoubtedly reduced, and the use cost of the hospital and the operation cost of a patient are increased. For this reason, many technologies such as patent publication nos. CN109077798A, CN208851583U and CN108601605A are proposed to solve the corresponding problems, but such solutions require disassembling the whole forceps rod or forceps head structure, and then reassembling after replacing the fluoroplastic pad, the replacing process is time-consuming and complex, and the rapid replacement during the actual application process cannot be performed in the operation or in the disinfection room.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the ultrasonic cutting hemostatic knife capable of quickly replacing the characteristic structure of the forceps head cushion block, so that the damaged forceps head cushion block of the ultrasonic cutting hemostatic knife can be simply and reliably replaced quickly, the service life of the ultrasonic cutting hemostatic knife is prolonged, and the use cost of the ultrasonic cutting hemostatic knife and the operation cost of a patient are reduced.
In order to achieve the technical purpose, the technical scheme of the invention is that the binding clip for prolonging the service life of the ultrasonic cutting hemostatic knife comprises a metal jaw and a jaw cushion block, wherein the metal jaw comprises a clamping groove area arranged at the front end and an inserting area arranged at the rear end, the metal jaw is provided with a clamping groove in the clamping groove area, the jaw cushion block comprises a cushion block main body, a clamping head arranged at the tail end of the cushion block main body and matched with the inserting area in size and a sliding block arranged on the cushion block main body and matched with the clamping groove in size, the jaw cushion block is inserted into the clamping groove of the metal jaw through the sliding block, the clamping head of the jaw cushion block is tightly matched with the inner wall of the inserting area after the jaw cushion block is inserted in place, one side of the cushion block main body facing the ultrasonic knife bar is sequentially provided with a front end smooth surface, a tooth surface protruding the front end smooth surface and a rear end smooth surface parallel to the, the front end smooth surface corresponds to the front end of the ultrasonic cutter bar, the cushion block main body is provided with a cushion block groove matched with the ultrasonic cutter bar in shape on the contact surface of the tooth surface and the rear end smooth surface with the ultrasonic cutter bar, and the bottom surface of the cushion block groove and the front end smooth surface are in the same plane. In the device, the jaw cushion block is formed by injection molding of low-friction-coefficient and high-temperature-resistant plastics (such as engineering plastics like polytetrafluoroethylene, polyether ether ketone or polyimide, and the like, or plastic alloys of the above plastics), and the jaw cushion block is used as an ultrasonic cutter bar, a metal jaw buffer and a sacrificial layer to prevent the ultrasonic cutter bar capable of vibrating at high frequency from directly contacting the metal jaw, thereby protecting the cutter bar. Because the size and the shape of the groove of the cushion block are matched with those of the ultrasonic cutter bar, when the forceps head of the ultrasonic cutting hemostatic cutter is closed, the cutting surfaces of the ultrasonic cutter bar fall into the cushion block groove and are not in direct contact with the jaw cushion block teeth, thus, the ultrasonic cutter bar is contacted with the compact cushion block instead of the tooth surface which is easy to wear, thereby reducing the wear of the tooth surface, prolonging the service life of the tooth surface, thereby prolonging the service life of the ultrasonic cutting hemostatic knife, and because the front end of the ultrasonic knife bar is the area with the maximum amplitude of the knife bar and the area which is easy to wear the jaw cushion block, the front end of the jaw cushion block is arranged to be a smooth surface, therefore, the front end of the jaw cushion block is prevented from being abraded too fast to cause integral failure, when in operation, the tissue to be excised is placed in the area where the forceps head and the ultrasonic cutter bar are closed, the forceps head is closed to apply pressure to the tissue, and the tooth surface at the middle end of the forceps head cushion block clamps the tissue to form clamping force to prevent the tissue from loosening; the bottom surface of the cushion block groove and the front end smooth surface are positioned on the same plane, so that the function of closing the blood vessel in the operation process is better, the clamp head and the ultrasonic cutter bar are in plane-to-plane contact after being closed, the blood vessel can be completely and rapidly cut and closed, and the closed part of the blood vessel can bear larger explosion pressure, namely high blood pressure; be equipped with evenly distributed's back-off tooth on the cushion tooth, when the centre gripping tissue, can provide bigger clamping-force and grab firm tissue, make the tissue be in the position of keeping silent and not the slippage to improve the hemostatic efficiency of cutting. The position with the maximum amplitude of the ultrasonic cutting hemostatic knife is located at 1/3 position at the foremost end of the knife bar and is also the position where the whole jaw cushion block is easy to wear and damage, and the 1/3 left and right positions at the front end of the jaw cushion block are set to be smooth planes instead of tooth-shaped planes, so that the integral strength of the position is higher, and the position is firmer and more wear-resistant simultaneously
In addition, if the operation time is too long, after the jaw cushion block is worn and failed, the jaw cushion block is clamped by an instrument such as a forceps and the like to forcibly extrude backwards under the condition that the forceps head is opened, so that the wedge-shaped chuck fastened in the wedge-shaped cavity at the rear end of the metal forceps head is withdrawn, the T-shaped slide block on the jaw cushion block retreats along the T-shaped clamping groove in the metal forceps head, and then a new jaw cushion block is inserted and fastened along the T-shaped clamping groove in the opposite direction, so that the rapid replacement of the ultrasonic cutting hemostatic forceps head cushion block is realized.
Furthermore, the dop of the cushion of keeping silent is the wedge dop, the cartridge district that the metal was kept silent is equipped with wedge dop size assorted wedge chamber, the draw-in groove that the metal was kept silent is T type draw-in groove, the slider on the cushion of keeping silent is for the T type slider with T type draw-in groove assorted. The two sides of the wedge-shaped cavity are respectively provided with a smooth surface and an extrusion surface with a certain inclination, when a wedge-shaped chuck on the jaw cushion block is installed, the wedge-shaped chuck is inserted into the cavity like a wooden wedge, the more inwards the wedge is, the larger the surface extrusion force of the wedge-shaped cavity and the wedge is, the larger the friction force between the wedge-shaped cavity and the wedge is, and therefore stable connection is formed.
Furthermore, a plurality of convex ribs for improving friction force are arranged on the contact surface of the wedge-shaped clamping head and the inner wall of the wedge-shaped cavity. The convex rib is a semi-cylinder, when the wedge-shaped body chuck is installed along the wedge-shaped cavity, the convex rib on the wedge-shaped body chuck is stressed and deformed, the gap is reduced, the more inward pushing is performed, the larger the convex rib deformation is, the larger the contact area is, the larger the friction force is, and the more the two are connected, the more the fastening is.
Further, the length of the wedge-shaped clamping head is 1/3-2/1 of the length of the wedge-shaped cavity.
Furthermore, a gasket support body used for guiding the T-shaped sliding block inserted into the T-shaped clamping groove is arranged at the inlet end of the T-shaped clamping groove. The gasket support body has the advantages that the gasket support body plays a role in guiding when the T-shaped sliding block of the jaw cushion block is installed in the T-shaped clamping groove of the metal jaw, and a new jaw cushion block can be replaced conveniently and quickly. The length of the gasket support body is 1/4-1/2 of the length of the wedge-shaped chuck on the jaw cushion block, so that the damaged jaw cushion block can be pulled out when the jaw cushion block which is deformed by stress, distorted and displaced is replaced conveniently.
Furthermore, the length of the gasket support body is 1/4-1/2 of the length of the wedge-shaped clamping head. The length and the space left by the wedge-shaped chuck can be used for sliding the wedge-shaped chuck out of the wedge-shaped cavity on the metal jaw.
Furthermore, a dismounting hole which is convenient for dismounting the jaw cushion block from the metal jaw is arranged on one side of the wedge-shaped chuck facing to the outside. Under the condition that the forceps head is opened, the forceps and other instruments are used for backward extrusion through the dismounting hole in the forceps head cushion forcibly, so that the wedge-shaped chuck fastened in the wedge-shaped cavity at the rear end of the metal forceps head is retracted, the T-shaped sliding block on the forceps head cushion is withdrawn along the T-shaped clamping groove in the metal forceps head, and then a new forceps head cushion is inserted and fastened along the T-shaped clamping groove in the opposite direction, so that the rapid replacement of the ultrasonic cutting hemostatic forceps head cushion is realized.
Furthermore, the length of the smooth surface is 1/4-2/5 of the length of the cushion block body.
Furthermore, the metal jaw is provided with a jaw pin hole in the insertion area, and the metal jaw is connected to an outer sleeve of the ultrasonic cutting hemostatic knife through a pin shaft arranged in the jaw pin hole.
Furthermore, the metal jaw is provided with a jaw rotating shaft in the insertion area, and the metal jaw is movably connected to the inner sleeve of the ultrasonic cutting hemostatic knife through the jaw rotating shaft.
In conclusion, the ultrasonic cutting hemostatic knife has the advantages that the structural design is ingenious, the damaged forceps head cushion block of the ultrasonic cutting hemostatic knife can be replaced quickly, the service life of the ultrasonic cutting hemostatic knife is prolonged, the operation efficiency is improved, and the use cost of doctors and patients is reduced.
Drawings
Fig. 1 is a schematic perspective view of the ultrasonic scalpel mounted on an ultrasonic scalpel head according to the present invention.
Fig. 2 is a schematic view of the process of detaching the jaw pad and the metal jaw of the present invention.
Fig. 3 is a schematic perspective view of the present invention.
Fig. 4 is a schematic perspective view of a metal jaw of the present invention.
Fig. 5 is a bottom view of the metal jaw of the present invention.
Fig. 6(a) is a front view of a metal jaw of the present invention.
Fig. 6(b) is a sectional view taken along line a-a in fig. 6 (a).
Fig. 7 is a top view of a metal jaw of the present invention.
Fig. 8 is a schematic perspective view of a jaw pad of the present invention.
FIG. 9(a) is a front view of a jaw pad of the present invention.
Fig. 9(b) is a bottom view of the jaw spacer of the present invention.
FIG. 9(c) is a top view of the jaw spacer of the present invention.
Fig. 10(a) is a schematic view of the jaw pad and metal jaws of the present invention assembled quickly.
Fig. 10(b) is a schematic structural view of the assembled jaw pad and metal jaw of the present invention.
The reference signs are: 1. the device comprises a jaw cushion block 1-1, a wedge-shaped chuck 1-2, a disassembly hole 1-3, a T-shaped sliding block 1-4, a cushion block main body 1-5, a tooth surface 1-6, a convex rib 1-7, a front end smooth surface 1-8, a cushion block groove 1-9, a rear end smooth surface 2, a metal jaw 2-1, a gasket support body 2-2, a jaw rotating shaft 2-3, a jaw pin hole 2-4, a wedge-shaped cavity 2-5, a T-shaped clamping groove 3, an ultrasonic cutter bar 4, an outer sleeve 5 and an inner sleeve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the forceps head of the ultrasonic cutting hemostatic scalpel is composed of a metal jaw and a jaw pad, the whole of the forceps head is in a certain arc shape, the jaw pad is made of plastic (such as engineering plastic such as polytetrafluoroethylene, polyether ether ketone or polyimide, or plastic alloy of the above plastics) with small friction coefficient and high temperature resistance by injection molding, and the jaw pad is used as an ultrasonic knife bar, a metal jaw buffer layer and a sacrificial layer to prevent the ultrasonic knife bar 3 capable of vibrating at high frequency from directly contacting with the metal jaw 2, so that the ultrasonic knife bar 3 is protected. The end part of the metal jaw 2 is fixedly connected to the outer sleeve 4 through a pin shaft in the jaw pin hole 2-3, and is movably connected with the inner sleeve 5 capable of axially moving through the jaw rotating shaft 2-2, and when the inner sleeve 5 axially moves along the inner cavity of the outer sleeve 4, the opening and closing of the metal jaw are realized. When the metal jaw 2 of the ultrasonic cutting hemostatic knife is closed, the cutting surface of the ultrasonic knife bar 3 is attached to the arc-shaped groove on the jaw cushion 1 and the smooth surface at the front end of the jaw cushion 1, so that the cutting surface of the ultrasonic knife bar 3 is placed in the arc-shaped groove matched with the size and the shape and is not in direct contact with the jaw tooth surface 1-5, because the front end of the ultrasonic knife bar 3 is the area with the largest knife bar amplitude and is also the area which is most prone to wear the jaw cushion 1, the wear failure of the jaw cushion 1, particularly the damage of the tip, is a key problem which influences the overall service life of the ultrasonic cutting hemostatic knife, the cushion of the existing ultrasonic surgical knife on the market is usually a full-tooth cushion, and the tooth form is extremely prone to wear under high-frequency vibration and high temperature. What 3 contacts of supersound cutter arbor in this scheme is closely knit cushion rather than the tooth of grabbing of easy wearing and tearing more to can be more wear-resisting resistant cutting at the operation in-process, improved the life of supersound cutting hemostatic knife. During operation, the tissue to be cut off is placed in the area where the forceps head and the ultrasonic cutter bar are closed, the forceps head is closed to apply pressure to the tissue, the tooth surface at the middle end of the jaw cushion block 1 clamps the tissue to form clamping force, and the excited ultrasonic cutter bar cuts and stops bleeding to the tissue.
Fig. 2 is a schematic view of the process of detaching the jaw pad and the metal jaw of the present invention. The utility model discloses an ultrasonic cutting hemostatic knife, including the ultrasonic cutting hemostatic knife, the ultrasonic cutting hemostatic knife is characterized in that the ultrasonic cutting hemostatic knife is inevitable in the use can wear plastic jaw cushion block 1, jaw cushion block 1 is a quick-wear part, when hospital operating room used repeatedly or time-consuming high-difficulty large-scale operation, the cushion block can be inevitably damaged in advance, and therefore the service life of the ultrasonic cutting hemostatic knife can be prolonged by replacing damaged jaw cushion block 1. In the scheme, under the condition that the jaw cushion block 1 is opened, the jaw cushion block 1 is forcibly pushed backwards through a dismounting hole 1-2 on the jaw cushion block 1 by using a nipper and other apparatuses, so that a wedge-shaped chuck 1-1 fastened in a wedge-shaped cavity 2-4 at the rear end of a metal jaw 2 is withdrawn, and a T-shaped sliding block 1-3 on the jaw cushion block 1 is withdrawn along a T-shaped clamping groove 2-5 in the metal jaw 2. Then, a new jaw cushion block 1 is inserted and fastened along the T-shaped clamping groove 2-5 along the opposite direction, so that the rapid replacement of the ultrasonic cutting hemostatic forceps head cushion block 1 is realized.
Fig. 3-6 are schematic structural diagrams of the metal jaw, and it can be seen from fig. 3 that the metal jaw 2 includes a gasket support body 2-1, a jaw rotating shaft 2-2, a jaw pin hole 2-3, a wedge cavity 2-4, and a T-shaped slot 2-5. The metal jaw 2 is integrally in a certain arc shape, a T-shaped clamping groove 2-5 is arranged in the metal jaw 2, the T-shaped clamping groove 2-5 is matched with a T-shaped sliding block 1-3 on the jaw cushion block 1 in shape and size, and after the T-shaped sliding block 1-3 is inserted into the T-shaped clamping groove 2-5 on the metal jaw 2, the T-shaped sliding block 1-3 on the jaw cushion block 1 is fixed on the periphery. The rear end of the metal jaw 2 is provided with a wedge cavity 2-4, two sides of the wedge cavity 2-4 are respectively provided with a smooth surface and an extrusion surface with a certain inclination, when a wedge-shaped chuck on the jaw cushion block is installed, the wedge-shaped chuck is inserted into the cavity like a wooden wedge, the more inward the wedge is, the larger the extrusion force of the surfaces of the wedge-shaped chuck and the wedge is, the larger the friction force between the wedge-shaped chuck and the wedge is, and therefore stable connection is formed. The front end of the cavity of the wedge-shaped cavity 2-4 is provided with a gasket support body 2-1, the gasket support body 2-1 is used for supporting a wedge-shaped chuck 1-1 of a part of the jaw cushion block 1 and is used for guiding when a T-shaped sliding block 1-3 of the jaw cushion block 1 is arranged in a T-shaped clamping groove 2-5 of the metal jaw 2, and the jaw cushion block 1 can be conveniently and quickly replaced by a new jaw cushion block 1. The length of the gasket support body 2-1 is 1/4-1/2 of the length of the wedge-shaped chuck 1-1 on the jaw cushion block 1, and when the wedge-shaped chuck 1-1 deforms under stress, twists and shifts when the jaw cushion block is replaced, the damaged jaw cushion block can be conveniently pulled out.
Fig. 8 and 9 are a schematic perspective view of the jaw spacer 1 and three views of the jaw spacer, respectively. The overall shape of the jaw cushion block 1 is arc-shaped and matched with that of the metal jaw 2, a dismounting hole 1-2 for quick dismounting is arranged on a wedge-shaped chuck 1-1 at the rear end of the jaw cushion block 1, and when a damaged jaw cushion block is replaced, instruments such as tweezers and the like can form a stress point on the dismounting hole 1-2 to apply a force for backward dismounting. The length of the wedge-shaped chuck 1-1 is 1/3-2/1 of the length of the wedge-shaped cavity 2-4 on the metal jaw 2, the reserved length and space can be used for the wedge-shaped chuck 1-1 to slide out of the wedge-shaped cavity 2-4 on the metal jaw 2, meanwhile, the wedge-shaped chuck 1-1 is provided with a smooth surface and an inclined surface matched with the structure and the size of the wedge-shaped cavity of the metal jaw, the inclined surface is provided with vertical and uniformly distributed convex ribs 1-6, the convex ribs 1-6 are small semi-cylinders, when the wedge-shaped chuck 1-1 is installed along the wedge-shaped cavity 2-4, the convex ribs 1-6 on the wedge-shaped chuck 1-1 are stressed and deformed, gaps are reduced, the more inward pushing is, the larger the convex ribs 1-6 are deformed, the larger the contact area is, the larger the friction force.
The size of the T-shaped sliding block 1-3 is matched with that of the T-shaped clamping groove 2-5 of the metal jaw 2, the T-shaped sliding block 1-3 cannot encounter great resistance when being assembled, and the T-shaped sliding block 1-3 is circumferentially fixed after being assembled in place, but can slide out along the T-shaped clamping groove 2-5 on the metal jaw 2 under the condition of stress. The surface of the jaw cushion block 1 facing the ultrasonic cutter bar 3 comprises a front smooth surface 1-7 arranged at the front end of the jaw cushion block 1, a tooth surface 1-5 arranged at the middle end and a rear smooth surface 1-9 arranged at the rear end, the contact surface of the jaw cushion block 1 and the ultrasonic cutter bar 3 comprises cushion block grooves 1-8 which penetrate through the tooth surface 1-5 and the rear smooth surface 1-9 and are matched with the shape of the ultrasonic cutter bar 3, and the front smooth surface 1-7 is flush with the groove bottoms of the cushion block grooves 1-8, so that the ultrasonic cutter bar 3 is completely attached to the front smooth surface 1-7 and the groove bottoms of the cushion block grooves 1-8 after the jaw head is closed, no gap exists between the jaw cushion block and the front smooth surface and the cushion block grooves 1-8, and the arrangement can bring: 1. because of no gap, the function of closing the blood vessel is better in the operation process, the seamless 'squeezing' between the forceps head and the ultrasonic cutter bar can completely and rapidly cut and close the blood vessel, and the closed part of the blood vessel can bear larger explosion pressure, namely hypertension; 2. the cutter bar is contacted with the compact cushion block instead of the easily worn grasping teeth, so that the surgical knife is more wear-resistant and cut-resistant in the surgical process, and the service life of the ultrasonic cutting hemostatic knife is prolonged. The evenly distributed back-off teeth are arranged on the tooth surfaces 1-5, when tissue is clamped, larger clamping force can be provided to firmly grab the tissue, the tissue is positioned at the jaw position and does not slip, and therefore the efficiency of cutting hemostasis is improved. The position with the largest amplitude of vibration of the ultrasonic cutting hemostatic knife is located at 1/3 at the foremost end of the knife bar and is also the position where the whole jaw cushion block is most easily worn and damaged, and the position 1/3 of the front end of the jaw cushion block is set to be a smooth plane instead of a tooth-shaped plane, so that the whole strength of the position is higher, and the position is firmer and more wear-resistant.
When an operation is performed or the operation is completed, when the jaw cushion block on the ultrasonic cutting hemostatic knife is found to be damaged and cannot be used, a doctor or an instrument nurse can use an instrument such as tweezers to forcibly extrude backwards through the dismounting hole on the jaw cushion block, loosen the wedge-shaped chuck fastened in the wedge-shaped cavity at the rear end of the metal forceps head to withdraw the wedge-shaped chuck, and quickly take out the damaged jaw cushion block, as shown in fig. 10. Then insert and fasten the new cushion of keeping silent along T type draw-in groove along opposite direction, realize the quick replacement of ultrasonic cutting hemostatic forceps head cushion, the dismouting process is simple reliable and can replace the jaw cushion of the ultrasonic cutting hemostatic scalpel of damage fast, makes the life of ultrasonic cutting hemostatic scalpel very prolong to reduce whole use cost of ultrasonic cutting hemostatic scalpel and patient's operating cost. It should be noted that the present invention is not limited to the above embodiments, and as long as the specific size or shape of the components is not described, the components can be any size or shape corresponding to the structure, and no matter any change is made in the material composition, the structural design provided by the present invention is a modification of the present invention, and should be considered as being within the protection scope of the present invention.
Claims (10)
1. The utility model provides an improve ultrasonic cutting hemostatic knife life's binding clip, includes that metal is kept silent (2) and is kept silent cushion (1), its characterized in that: the metal jaw (2) comprises a clamping groove area arranged at the front end and an inserting area arranged at the rear end, a clamping groove is arranged in the clamping groove area of the metal jaw (2), the jaw cushion block (1) comprises a cushion block main body (1-4), a clamping head arranged at the tail end of the cushion block main body (1-4) and matched with the inserting area in size, and a sliding block arranged on the cushion block main body (1-4) and matched with the clamping groove in size, the jaw cushion block (1) is inserted into the clamping groove of the metal jaw (2) through the sliding block, the clamping head of the jaw cushion block (1) is tightly matched with the inner wall of the inserting area in a clamping mode after the inserting is in place, a front end smooth surface (1-7), a tooth surface (1-5) protruding from the front end smooth surface (1-7) and a rear end smooth surface (1-5) parallel to the tooth surface (1-5) are sequentially arranged on one side of the cushion block main body (1-4) facing the ultrasonic cutter bar -9), the front end smooth surface (1-7) corresponds to the front end of the ultrasonic cutter bar (3), the cushion block main body (1-4) is provided with a cushion block groove (1-8) matched with the shape of the ultrasonic cutter bar (3) on the contact surface of the tooth surface (1-5) and the rear end smooth surface (1-9) with the ultrasonic cutter bar (3), and the bottom surface of the cushion block groove (1-8) and the front end smooth surface (1-7) are in the same plane.
2. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 1, characterized in that: the clamp of the jaw cushion block (1) is a wedge-shaped clamp (1-1), a wedge-shaped cavity (2-4) matched with the wedge-shaped clamp (1-1) in size is arranged in an insertion area of the metal jaw (2), a T-shaped clamping groove (2-5) is formed in a clamping groove of the metal jaw (2), and a T-shaped sliding block (1-3) matched with the T-shaped clamping groove (2-5) is arranged on a sliding block on the jaw cushion block (1).
3. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 2, characterized in that: and a plurality of convex ribs (1-6) for improving friction force are arranged on the contact surface of the wedge-shaped chuck (1-1) and the inner wall of the wedge-shaped cavity (2-4).
4. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 2, characterized in that: the length of the wedge-shaped clamping head (1-1) is 1/3-2/1 of the length of the wedge-shaped cavity (2-4).
5. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 2, characterized in that: and a gasket support body (2-1) used for guiding a T-shaped sliding block (1-3) inserted into the T-shaped clamping groove (2-5) is arranged at the inlet end of the T-shaped clamping groove (2-5).
6. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 5, characterized in that: the length of the gasket support body (2-1) is 1/4-1/2 of the length of the wedge-shaped chuck (1-1).
7. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 2, characterized in that: the wedge-shaped chuck (1-1) is provided with a dismounting hole (1-2) on one side facing the outside, wherein the dismounting hole (1-2) is convenient for dismounting the jaw cushion block (1) from the metal jaw (2), and the dismounting hole (1-2) can be a through hole or a blind hole.
8. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 1, characterized in that: the length of the smooth surface (1-7) is 1/4-2/5 of the length of the cushion block main body (1-4).
9. The forceps head for prolonging the service life of the ultrasonic cutting hemostatic knife according to any one of claims 1 to 8, characterized in that: the tail end of the metal jaw (2) is provided with a jaw pin hole (2-3), and the tail end of the metal jaw (2) is connected to an outer sleeve (4) of the ultrasonic cutting hemostatic knife in a shaft mode through a pin shaft arranged in the jaw pin hole (2-3).
10. The forceps head for improving the service life of the ultrasonic cutting hemostatic knife according to claim 9, wherein: the tail end of the metal jaw (2) is also provided with a jaw rotating shaft (2-2), and the metal jaw (2) is movably connected to an inner sleeve (5) of the ultrasonic cutting hemostatic knife through the jaw rotating shaft (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910924565.1A CN110584751A (en) | 2019-09-27 | 2019-09-27 | Binding clip for prolonging service life of ultrasonic cutting hemostatic knife |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910924565.1A CN110584751A (en) | 2019-09-27 | 2019-09-27 | Binding clip for prolonging service life of ultrasonic cutting hemostatic knife |
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| CN110584751A true CN110584751A (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910924565.1A Pending CN110584751A (en) | 2019-09-27 | 2019-09-27 | Binding clip for prolonging service life of ultrasonic cutting hemostatic knife |
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| CN (1) | CN110584751A (en) |
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