CN106725748A - Corrosion-resistant scalpel - Google Patents

Corrosion-resistant scalpel Download PDF

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Publication number
CN106725748A
CN106725748A CN201611204184.9A CN201611204184A CN106725748A CN 106725748 A CN106725748 A CN 106725748A CN 201611204184 A CN201611204184 A CN 201611204184A CN 106725748 A CN106725748 A CN 106725748A
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CN
China
Prior art keywords
blade
knife
parts
scalpel
resistant
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Pending
Application number
CN201611204184.9A
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Chinese (zh)
Inventor
朱宁峰
矫夏
郁菁菁
冯叶华
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Kunshan Branch Source Of Hong Sen Metal Technology Co Ltd
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Kunshan Branch Source Of Hong Sen Metal Technology Co Ltd
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Priority to CN201611204184.9A priority Critical patent/CN106725748A/en
Publication of CN106725748A publication Critical patent/CN106725748A/en
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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
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A61B17/3211—Surgical scalpels, knives; Accessories therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/024—Carbon; Graphite
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/028—Other inorganic materials not covered by A61L31/022 - A61L31/026
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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Abstract

The present invention discloses a kind of corrosion-resistant scalpel, including：Blade, bar shaped handle of a knife, one end of the blade is blade, and the other end is Plug Division, and the bar shaped handle of a knife front end has the jack for Plug Division insertion；Step one, ultrafine tungsten carbide, strontium titanates, titanium carbide, chromium carbide, molybdenum disilicide, titanium nitride, vanadium carbide and graphite powder are put into pulverizer and carry out pulverization process, form mixed-powder of the diameter less than 20 microns；Step 2, mixed-powder obtained in step one is placed in vacuum condition it is heated to 850 DEG C, heat 4 hours, be subsequently adding 4 ~ 6 parts of phenolic resin and stir, is cooled down after mixture is obtained；Step 3, by forcing press to mixture carry out shaping compacting form pressed compact；Step 4, by pressed compact placement sintering furnace be sintered to form blade blank.The present invention corrosion-resistant scalpel convenient disassembly, it is to avoid the problem that cutter hub easily loosens, rocks；And cause that the blade of scalpel possesses the hardness of superelevation, and it is quite sharp to open the blade after cutting edge of a knife or a sword.

Description

Corrosion-resistant scalpel
Technical field
The present invention relates to medical instruments field, more particularly to a kind of corrosion-resistant scalpel.
Background technology
Scalpel is the indispensable instrument for carrying out surgical operation, and its security is heavy to closing for operator and sufferer Will.Conventional traditional operation knife generally has two types：One kind is modeling handle scalpel, and another kind is steel handle scalpel.Modeling handle operation Knife is mainly made up of the blade of single use and the modeling handle of single use, and modeling handle front portion is provided with blade bearing, and blade is arranged on On blade bearing.Steel handle scalpel is mainly made up of the blade and the non-disposable steel handle for using of single use, uses preceding needs Blade is installed on handle of a knife, blade is removed from handle of a knife after use；Prior art presence is difficult to avoid that in use The problem for rock, loosening, it is also possible to which the situation that cutter head comes off under external force or so can occur, it is dangerous high.
The content of the invention
The present invention provides a kind of corrosion-resistant scalpel, this Multifunctional bistoury convenient disassembly, it is to avoid cutter hub easily loosens, shakes Dynamic problem；And cause that the blade of scalpel possesses the hardness of superelevation, and it is quite sharp to open the blade after cutting edge of a knife or a sword.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of corrosion-resistant scalpel, including：Blade, bar shaped Handle of a knife, one end of the blade is blade, and the other end is Plug Division, and the bar shaped handle of a knife front end has inserting for Plug Division insertion Hole；The knife edge of the blade is 70 ~ 80 ° with blade lengths angular separation, and blade top has a chamfering inclined-plane；
Several holes of sucking blood are provided with the blade, this hole of sucking blood is connected by a point conduit with collector tube, and this collector tube is by arriving Conduit is connected to imbibition interface, and described point of conduit is located in blade with collector tube；One rubber sleeve is set in the bar shaped handle of a knife Postmedian, the outer surface of this rubber sleeve is evenly distributed with several salient points；
The blade is obtained by following steps：
Step one, by 50 ~ 60 parts of ultrafine tungsten carbide, 12 ~ 20 parts of strontium titanates, 8 ~ 10 parts of titanium carbide, 6 ~ 8 parts of chromium carbide, two silicon Changing in 4 ~ 8 parts of molybdenum, 7 ~ 9 parts of titanium nitride, 1 ~ 2 part of vanadium carbide and 3 ~ 4 parts of input pulverizers of graphite powder carries out pulverization process, forms straight Mixed-powder of the footpath less than 20 microns；
Step 2, mixed-powder obtained in step one is placed in vacuum condition it is heated to 850 DEG C, heat 4 hours, is subsequently adding 4 ~ 6 parts of phenolic resin is stirred, and is cooled down after mixture is obtained；
Step 3, by forcing press to mixture carry out shaping compacting form pressed compact；
Step 4, by pressed compact placement sintering furnace be sintered to form blade blank, comprise the following steps that：
Step 4-1, first it is warming up to 260 DEG C, then 500 DEG C is warming up to 4 ~ 6 DEG C per hour of speed, is incubated 1 ~ 2 hour, this rank Duan Caiyong vacuum conditions are sintered；
Step 4-2, with 8 ~ 12 DEG C per hour of speed be warming up to 1260 DEG C again, be incubated 1 ~ 2 hour, this stage atmosphere be argon gas and The mixed gas that nitrogen is formed, sintering pressure now is 6Mpa；
Step 4-3, with 2 ~ 4 DEG C per hour of speed it is warming up to 1380 DEG C again, is incubated 1 ~ 2 hour, this stage atmosphere is argon gas, this When sintering pressure be 4Mpa；
Step 4-4, furnace cooling；
Step 5, fine grinding is carried out to blade blank, load opens cutting edge of a knife or a sword and grinding process forms preliminary blade；
Step 6, the preliminary blade of step 5 is carried out liquid nitrogen deep treatment so as to obtain the blade.
Further improved technical scheme is as follows in above-mentioned technical proposal：
Preferably, the section of the bar shaped handle of a knife is circle.
Preferably, the knife edge of the blade is 75 ° or 78 ° with blade lengths angular separation.
Preferably, second conduit insertion of the conduit by the first conduit in blade and in bar shaped handle of a knife Composition.
Preferably, several described salient points are made up of several big salient points and several small salient points, this big salient point and small Salient point is alternately arranged.
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1st, corrosion-resistant scalpel of the invention, its use 50 ~ 60 parts of ultrafine tungsten carbide, 12 ~ 20 parts of strontium titanates, 8 ~ 10 parts of titanium carbide, 1 ~ 2 part of 6 ~ 8 parts of chromium carbide, 4 ~ 8 parts of molybdenum disilicide, 7 ~ 9 parts of titanium nitride and vanadium carbide are sintered so that the blade of scalpel Possess the hardness of superelevation, and open that the blade after cutting edge of a knife or a sword is quite sharp, and high intensity is not easy bending occur；Its sintering process Three phases pressure is sequentially switched to high-pressure sinter, sub-high pressure and sinters by vacuum, and with the switching of specific components atmosphere, is conducive to Carbide dispersion is separated out, and then makes the material tissue of blade even closer, increased bending strength and chipping resistance；Again, its Mixed-powder is placed in vacuum condition and is heated to 850 DEG C, heats 4 hours, is subsequently adding 4 ~ 6 parts of phenolic resin and is sufficiently stirred for It is even, be conducive to improving wearability.
2nd, corrosion-resistant scalpel of the invention, is provided with several holes of sucking blood on its blade, this hole of sucking blood is by point conduit and collection Liquid pipe is connected, and this collector tube is connected to imbibition interface by conduit, and described point of conduit is located in blade with collector tube, its operation When can in real time siphon away the liquid, doctor's observation wound in convenient operation such as otch constantly overflows in surgical procedure blood or tissue fluid Situation, is conducive to improving the precision performed the operation.
3rd, corrosion-resistant scalpel of the invention, knife edge and the blade lengths angular separation of its blade are 70 ~ 80 °, and knife Sword top has a chamfering inclined-plane, and order of accuarcy is high, can not cut off meat fiber tissue, and wound is cut out to internal pathological tissues Small, bleeding is few, without large area wound and intraluminal tissue and air contact, reduces infection probability, without suture, greatly shortens hand The art time, postoperative pain is light, it is fast to recover, scar is trickle or without scar；Secondly, after its rubber sleeve is set in bar shaped handle of a knife Portion, the outer surface of this rubber sleeve is evenly distributed with several salient points, convenient to grip, can prevent scalpel from sliding, it is to avoid bar Shape handle of a knife surface is smooth, the defect for slipping is easy in surgical procedure, so as to greatly reduce malpractice rate.
Brief description of the drawings
Accompanying drawing 1 is corrosion-resistant scalpel structure schematic diagram of the invention；
Accompanying drawing 2 is the partial structural diagram of accompanying drawing 1.
In the figures above：1st, blade；2nd, bar shaped handle of a knife；3rd, blade；4th, Plug Division；5th, jack；9th, chamfering inclined-plane；10th, inhale Blood hole；11st, conduit is divided；12nd, collector tube；13rd, conduit；131st, the first conduit；132nd, the second conduit；14th, imbibition interface；15th, rubber Gum cover；16th, salient point；161st, big salient point；162nd, small salient point.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment 1 ~ 4：A kind of corrosion-resistant scalpel, including：Blade 1, bar shaped handle of a knife 2, one end of the blade 1 is blade 3, separately One end is Plug Division 4, and the front end of bar shaped handle of a knife 2 has the jack 5 for the insertion of Plug Division 4；The edge of blade 3 of the blade 1 It is 70 ~ 80 ° with the length direction angle of blade 1, and the top of blade 12 has a chamfering inclined-plane 9；
Several holes 10 of sucking blood are provided with the blade 3, this hole 10 of sucking blood is connected by a point conduit 11 with collector tube 12, this liquid collecting Pipe 12 is connected to imbibition interface 14 by conduit 13, and described point of conduit 11 is located in blade 1 with collector tube 12；One rubber sleeve 15 The postmedian of the bar shaped handle of a knife 2 is set in, the outer surface of this rubber sleeve 15 is evenly distributed with several salient points 16.
The blade 1 is obtained by following steps：
Step one, by 50 ~ 60 parts of ultrafine tungsten carbide, 12 ~ 20 parts of strontium titanates, 8 ~ 10 parts of titanium carbide, 6 ~ 8 parts of chromium carbide, two silicon Changing in 4 ~ 8 parts of molybdenum, 7 ~ 9 parts of titanium nitride, 1 ~ 2 part of vanadium carbide and 3 ~ 4 parts of input pulverizers of graphite powder carries out pulverization process, forms straight Mixed-powder of the footpath less than 20 microns；Specifically it is made up of following parts by weight of component, as shown in table 1：
Table 1
Step 2, mixed-powder obtained in step one is placed in vacuum condition it is heated to 850 DEG C, heat 4 hours, is subsequently adding 4 ~ 6 parts of phenolic resin is stirred, and is cooled down after mixture is obtained；
Step 3, by forcing press to mixture carry out shaping compacting form pressed compact；
Step 4, by pressed compact placement sintering furnace be sintered to form blade blank, comprise the following steps that：
Step 4-1, first it is warming up to 260 DEG C, then 500 DEG C is warming up to 4 ~ 6 DEG C per hour of speed, is incubated 1 ~ 2 hour, this rank Duan Caiyong vacuum conditions are sintered；
Step 4-2, with 8 ~ 12 DEG C per hour of speed be warming up to 1260 DEG C again, be incubated 1 ~ 2 hour, this stage atmosphere be argon gas and The mixed gas that nitrogen is formed, sintering pressure now is 6Mpa；
Step 4-3, with 2 ~ 4 DEG C per hour of speed it is warming up to 1380 DEG C again, is incubated 1 ~ 2 hour, this stage atmosphere is argon gas, this When sintering pressure be 4Mpa；
Step 4-4, furnace cooling；
Step 5, fine grinding is carried out to blade blank, load opens cutting edge of a knife or a sword and grinding process forms preliminary blade；
Step 6, the preliminary blade of step 5 is carried out liquid nitrogen deep treatment so as to obtain the blade 1.
The section of above-mentioned bar shaped handle of a knife 2 is circle；The edge of blade 3 of insert 1 is with the length direction angle of blade 1 78°。
Above-mentioned conduit 13 is passed through by the first conduit 131 in blade 1 and the second conduit 132 in bar shaped handle of a knife 2 Logical composition.
The edge of blade 3 of insert 1 and the length direction angle of blade 1 are 75 °.
Several described salient points 16 are made up of several big salient points 161 and several small salient points 162, this He of big salient point 161 Small salient point 162 is alternately arranged.
During using above-mentioned corrosion-resistant scalpel, it causes that the blade of scalpel possesses the hardness of superelevation, and after opening cutting edge of a knife or a sword Blade is quite sharp, and high intensity is not easy bending occur；Its sintering process three phases pressure is switched successively by vacuum Sintered to high-pressure sinter, sub-high pressure, and with the switching of specific components atmosphere, be conducive to carbide dispersion to separate out, and then make blade Material tissue it is even closer, increased bending strength and chipping resistance；Again, its mixed-powder is placed in vacuum condition and heats To 850 DEG C, heat 4 hours, be subsequently adding 4 ~ 6 parts of phenolic resin and stir, be conducive to improving wearability；Next, its Several holes of sucking blood are provided with blade, this hole of sucking blood is connected by a point conduit with collector tube, and this collector tube is connected by conduit To imbibition interface, with collector tube in blade, otch is continuous in real time siphoning away surgical procedure during its operation for described point of conduit The liquid such as the blood or tissue fluid of spilling, doctor's observation wound situation in convenient operation, are conducive to improving the precision performed the operation；Its Secondary, its order of accuarcy is high, can not cut off meat fiber tissue, and it is small that internal pathological tissues are cut out with wound, and bleeding is few, without large area Wound and intraluminal tissue and air contact, reduce infection probability, without suture, greatly shorten operating time, postoperative pain is light, Recover fast, scar trickle or without scar；Again, it can prevent scalpel from sliding, it is to avoid bar shaped handle of a knife surface is smooth, in hand The defect for slipping is easy to during art, so as to greatly reduce malpractice rate.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention.It is all according to the present invention The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.

Claims (5)

1. a kind of corrosion-resistant scalpel, it is characterised in that：Including：Blade（1）, bar shaped handle of a knife（2）, the blade（1）One end It is blade（3）, the other end is Plug Division（4）, the bar shaped handle of a knife（2）Front end have supply Plug Division（4）Embedded jack（5）； The blade（1）Blade（3）Edge and blade（1）Length direction angle is 70 ~ 80 °, and blade（12）Top has one to fall Angle inclined-plane（9）；
The blade（3）On be provided with several holes of sucking blood（10）, this hole of sucking blood（10）By a point conduit（11）With collector tube（12） Connection, this collector tube（12）By to conduit（13）It is connected to imbibition interface（14）, described point of conduit（11）With collector tube（12） Positioned at blade（1）It is interior；One rubber sleeve（15）It is set in the bar shaped handle of a knife（2）Postmedian, this rubber sleeve（15）Outer surface It is evenly distributed with several salient points（16）；
The blade（1）Obtained by following steps：
Step one, by 50 ~ 60 parts of ultrafine tungsten carbide, 12 ~ 20 parts of strontium titanates, 8 ~ 10 parts of titanium carbide, 6 ~ 8 parts of chromium carbide, two silicon Changing in 4 ~ 8 parts of molybdenum, 7 ~ 9 parts of titanium nitride, 1 ~ 2 part of vanadium carbide and 3 ~ 4 parts of input pulverizers of graphite powder carries out pulverization process, forms straight Mixed-powder of the footpath less than 20 microns；
Step 2, mixed-powder obtained in step one is placed in vacuum condition it is heated to 850 DEG C, heat 4 hours, is subsequently adding 4 ~ 6 parts of phenolic resin is stirred, and is cooled down after mixture is obtained；
Step 3, by forcing press to mixture carry out shaping compacting form pressed compact；
Step 4, by pressed compact placement sintering furnace be sintered to form blade blank, comprise the following steps that：
Step 4-1, first it is warming up to 260 DEG C, then 500 DEG C is warming up to 4 ~ 6 DEG C per hour of speed, is incubated 1 ~ 2 hour, this rank Duan Caiyong vacuum conditions are sintered；
Step 4-2, with 8 ~ 12 DEG C per hour of speed be warming up to 1260 DEG C again, be incubated 1 ~ 2 hour, this stage atmosphere be argon gas and The mixed gas that nitrogen is formed, sintering pressure now is 6Mpa；
Step 4-3, with 2 ~ 4 DEG C per hour of speed it is warming up to 1380 DEG C again, is incubated 1 ~ 2 hour, this stage atmosphere is argon gas, this When sintering pressure be 4Mpa；
Step 4-4, furnace cooling；
Step 5, fine grinding is carried out to blade blank, load opens cutting edge of a knife or a sword and grinding process forms preliminary blade；
Step 6, the preliminary blade of step 5 is carried out liquid nitrogen deep treatment so as to obtain the blade（1）.
2. corrosion-resistant scalpel according to claim 1, it is characterised in that：The bar shaped handle of a knife（2）Section for circle.
3. corrosion-resistant scalpel according to claim 1, it is characterised in that：The blade（1）Blade（3）Edge and knife Piece（1）Length direction angle is 75 ° or 78 °.
4. corrosion-resistant scalpel according to claim 1, it is characterised in that：The conduit（13）By positioned at blade（1）It is interior The first conduit（131）With positioned at bar shaped handle of a knife（2）The second interior conduit（132）Insertion is constituted.
5. corrosion-resistant scalpel according to claim 1, it is characterised in that：Several described salient points（16）It is big by several Salient point（161）With several small salient points（162）Composition, this big salient point（161）And small salient point（162）It is alternately arranged.
CN201611204184.9A 2016-12-23 2016-12-23 Corrosion-resistant scalpel Pending CN106725748A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113637938A (en) * 2021-08-17 2021-11-12 中南大学湘雅医院 High-performance ultrasonic knife and preparation method thereof

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Publication number Priority date Publication date Assignee Title
EP1031322A2 (en) * 1999-02-26 2000-08-30 Thomas D. Petersen Scalpel with a double blade edge and detachable handle
CN1427751A (en) * 2000-03-15 2003-07-02 分子冶金公司 Scalpel blade having high sharpness and toughness
US20050033336A1 (en) * 2003-08-06 2005-02-10 Chang-Ming Yang Safety surgeon knife structure
CN201019805Y (en) * 2007-02-06 2008-02-13 陈鸿文 Operating knife with nano diamond coating
CN201267514Y (en) * 2008-10-22 2009-07-08 陈秀敏 Surgical knife
CN105503182A (en) * 2015-12-18 2016-04-20 珠海市香之君科技股份有限公司 Cutter blank forming technology of ceramic surgical blade

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Publication number Priority date Publication date Assignee Title
EP1031322A2 (en) * 1999-02-26 2000-08-30 Thomas D. Petersen Scalpel with a double blade edge and detachable handle
CN1427751A (en) * 2000-03-15 2003-07-02 分子冶金公司 Scalpel blade having high sharpness and toughness
US20050033336A1 (en) * 2003-08-06 2005-02-10 Chang-Ming Yang Safety surgeon knife structure
CN201019805Y (en) * 2007-02-06 2008-02-13 陈鸿文 Operating knife with nano diamond coating
CN201267514Y (en) * 2008-10-22 2009-07-08 陈秀敏 Surgical knife
CN105503182A (en) * 2015-12-18 2016-04-20 珠海市香之君科技股份有限公司 Cutter blank forming technology of ceramic surgical blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113637938A (en) * 2021-08-17 2021-11-12 中南大学湘雅医院 High-performance ultrasonic knife and preparation method thereof

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