CN104042323A - Low-temperature cold knife for laparoscopic surgery - Google Patents
Low-temperature cold knife for laparoscopic surgery Download PDFInfo
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- CN104042323A CN104042323A CN201410300490.7A CN201410300490A CN104042323A CN 104042323 A CN104042323 A CN 104042323A CN 201410300490 A CN201410300490 A CN 201410300490A CN 104042323 A CN104042323 A CN 104042323A
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- blade
- knife bar
- laparoscopic surgery
- telescopic
- low temperature
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Abstract
The invention relates to the technical field of medical instruments, in particular to a low-temperature cold knife used in the abdominal cavity in the laparoscopic surgery process. Electrosurgical equipment currently used has the shortcomings that due to the effect of converting high-frequency discharge electric energy into heat energy, heat injury of surgical wound tissue is caused, and it is not good for healing of surgical wounds and pregnancy in the future. The low-temperature cold knife for the laparoscopic surgery is composed of a knife rod telescoping guide system, an automatic resetting and rebounding system, a controlling and grading system, a radial rotation preventing system, a blood clearing and recovering system and a blade low-temperature cooling system. By adjusting a telescopic knife rod 18, a surgical blade 10 can be arranged at an assembly and disassembly position or a work position or a protection position and is hidden when entering the abdominal cavity, and accidental injury is prevented.
Description
One, affiliated technical field
The present invention relates to technical field of medical instruments, the operation cryoprobe using at intraperitoneal while specifically carrying out laparoscopic surgery.
Two, background technology
It is little that laparoscopic technique has wound because of it, painful light, recovers fast advantage, over nearly 20 years, obtained swift and violent development.Particularly the extensive use of electrosurgical equipment and operation skill improve constantly, and belong in the past some contraindications of laparoscopic surgery, as obesity, excessively thin, advanced age, repeatedly abdominopelvic cavity history of operation is no longer restricted.The diseases such as carcinoma of endometrium (EC), cervical cancer (SCC), ovarian cancer (OC), abdominopelvic cavity severe adhesion, pelvic abscess, hemorrhagic shock progressively adopt laparoscopic surgical procedure, and obtain good effect.For suffering from endometrioma impact fertility and requiring the patient of fertility, carry out laparoscopic surgery while rejecting adenomyoma, the most often use one pole electricity hook, bipolar, Ligasure etc. to remove focus, its advantage is to seal blood capillary wound, reduces hemorrhage.But electrosurgical equipment has common drawback, due to high-frequency discharge effect, the heat energy of current transitions acts on operation tissue, can cause surgical wound to organize hot injury, is unfavorable for that the healing of wound and later gestation breed.University Of Chongqing's application number 201010204079.1, the patent of invention " Cryosurgical scalpel in vivo minimally invasive operation " of application number publication number CN101869507A, adopt and alternately pass into the freezing method melting with hot water of nitrogen, allow in-vivo tissue under the effect colding and heat succeed each other of-196-45 degree, make pathological tissues necrosis, surgical wound is organized also and can be damaged, and is unfavorable for that equally the healing of wound and later gestation breed if be applied to laparoscopic surgery.Nanjing Qin Huai hospital application number 201310508525.1, the patent of invention " a kind of sleeve pipe scalpel " of application number publication number CN103519868A, just blade is at cover inner telescoping tube, can only solve the prolongation problem of scalpel, no matter in the situation of blade in stretching out or retract, knife blade is exposed to outside sleeve pipe all the time, if be applied to peritoneoscope videoendoscopic surgery, easily causes accidental injury.
Three, summary of the invention
For above problem, the invention provides one in the time of laparoscopic surgery, can stretch and adjust knife blade position, make knife blade three kinds of location status in handling, work and protection respectively.While entering peritoneoscope, knife blade is hidden in cutter hub pipe, releases cutter head, in surgical state when use.And pass into trace nitrogen gas scalpel is carried out cooling, thereby form safety laparoscopic surgery low temperature cryoprobe.Low temperature cryoprobe can seal blood capillary wound, reduces hemorrhagely, and surgical wound is organized fresh, is conducive to postoperative wound healing and later gestation breeds.
To achieve these goals, the present invention is made up of nitrogen interface, regulating handle, blade handling position skewed slot, knife bar resilience button, location ratchet, ratchet bearing pin, curved spring, guiding anti-rotary seat, importing tapered sleeve, knife blade, shaft block ring, fixed guide seat, drainage tube joint, blade work position skewed slot, spring wedge, blade guard bit skewed slot, channel of nitrogen hole, Telescopic knife bar, Compress Spring, drainage tube, cutter hub pipe, blade handling boss.Cutter hub is made up of cutter hub pipe and importing tapered sleeve two parts; The front end of Telescopic knife bar has blade handling boss, is thereafter that rectangular configuration section, cylindrical structure section, the cylinder of Telescopic knife bar cut flat structural sections successively, and rear end is (nitrogen interface); In cylindrical structure section, there are blade guard bit skewed slot, blade work position skewed slot, blade handling position skewed slot; Telescopic knife bar is hollow-core construction, forms channel of nitrogen hole.Location ratchet, ratchet bearing pin, curved spring are installed on fixed guide seat.Before the general assembly of laparoscopic surgery cryoprobe, first guiding anti-rotary seat is fixed on to the middle part of cutter hub pipe; Spring wedge is fixed on Telescopic knife bar with shaft block ring; Location ratchet, curved spring are fixed on fixed guide seat with ratchet bearing pin, and negative liquid sucking-discharging pipe is also fixed on fixed guide seat, forms parts.When general assembly, Compress Spring is enclosed within to Telescopic knife bar front end, Telescopic knife bar front end enters from the rectangular opening at guiding anti-rotary seat center, and the rectangular configuration section of Telescopic knife bar coordinates with the rectangular opening at guiding anti-rotary seat center, completes axially directed two kinds of functions with preventing radial rotating.Again fixed guide holder assembly is inserted in to Telescopic knife bar rear end, the endoporus of fixed guide seat coordinates with the cylindrical structure section of Telescopic knife bar, and fixed guide seat and cutter hub pipe are fixed, and completes the assembling of Telescopic knife bar and realizes the axially directed function of Telescopic knife bar.The cylinder of Telescopic knife bar is cut flat structural sections and is coordinated with regulating handle slotted hole, prevents from producing radial rotating between regulating handle and Telescopic knife bar, and moving axially of regulating handle limits with shaft block ring.
The present invention and background technology comparison, the present invention can overcome the common drawback that electrosurgical equipment exists, and prevents the hot injury of surgical wound tissue; Can overcome nitrogen freezing with hot water melt alternated process, make the damage of surgical wound tissue necrosis; Being conducive to the postoperation recovery of wound and later gestation breeds.And, when knife blade cutter of the present invention is retracted, in importing tapered sleeve, be applied to peritoneoscope videoendoscopic surgery and import mini-incision, can avoid causing unnecessary accidental injury.
Four, brief description of the drawings
Below in conjunction with Figure of description, the present invention is done to further more detailed explanation
Fig. 1: the full sectional view of knife blade duty of the present invention
As shown in Figure 1, the present invention is made up of nitrogen interface 1, regulating handle 2, blade handling position skewed slot 3, knife bar resilience button 4, location ratchet 5, ratchet bearing pin 6, curved spring 7, guiding anti-rotary seat 8, importing tapered sleeve 9, knife blade 10, shaft block ring 11, fixed guide seat 12, drainage tube joint 13, blade work position skewed slot 14, spring wedge 15, blade guard bit skewed slot 16, channel of nitrogen hole 17, Telescopic knife bar 18, Compress Spring 19, drainage tube 20, cutter hub pipe 21, blade handling boss 22.Form the flexible guidance system of knife bar by cutter hub pipe 21, guiding anti-rotary seat 8, fixed guide seat 12, Telescopic knife bar 18; Guiding anti-rotary seat 8, Compress Spring 19, Telescopic knife bar 18, spring wedge 15 form the resilience system that automatically resets; Knife bar resilience button 4, location ratchet 5, ratchet bearing pin 6, curved spring 7, blade handling position skewed slot 3, blade work position skewed slot 14, blade guard bit skewed slot 16 composition controls and stepping navigation system; Guiding anti-rotary seat 8, Telescopic knife bar 18 compositions prevent radial rotating system; Drainage tube joint 13, fixed guide seat 12, drainage tube 20 form blood and slime clearing and retrieving system; Nitrogen interface 1, channel of nitrogen hole 17, knife blade 10 form knife blade low-temperature cooling system.Cutter hub sleeve pipe rear end is cutter hub pipe 21, and its front end is to import tapered sleeve 9; Drainage tube joint 13 is forever connected to cutter hub pipe 21 rear ends; The front end of Telescopic knife bar 18 has blade handling boss 22, is thereafter that rectangular configuration section, cylindrical structure section, the cylinder of Telescopic knife bar 18 cut flat structural sections successively, and rear end is nitrogen interface 1; In cylindrical structure section, there are blade guard bit skewed slot 16, blade work position skewed slot 14, blade handling position skewed slot 3; Telescopic knife bar 18 is hollow-core construction, forms channel of nitrogen hole 17.Location ratchet 5, ratchet bearing pin 6, curved spring 7 are installed on fixed guide seat 12.Before the general assembly of laparoscopic surgery low temperature cryoprobe, first guiding anti-rotary seat 8 is fixed on to the middle part of cutter hub pipe 21; Spring wedge 15 use shaft block rings 11 are fixed on Telescopic knife bar 18; Location ratchet 5, curved spring 7 use ratchet bearing pins 6 are fixed on fixed guide seat 12, and drainage tube 20 is fixed on fixed guide seat 12, form parts.When general assembly, Compress Spring 19 is enclosed within to the front end of Telescopic knife bar 18, between guiding anti-rotary seat 8 and spring wedge 15; Telescopic knife bar 18 front ends are entered from the rectangular opening at guiding anti-rotary seat 8 centers, and the rectangular configuration section of Telescopic knife bar 18 coordinates with the rectangular opening at guiding anti-rotary seat 8 centers, completes axially directed two kinds of functions with preventing radial rotating.Again knife bar resilience button 4 is packed in the installing hole of cutter hub pipe 21; Fixed guide seat 12 assemblies are inserted in the cylinder of Telescopic knife bar 18 rear ends, the endoporus of fixed guide seat 12 coordinates with the cylindrical structure section of Telescopic knife bar 18, fixed guide seat 12 is fixing with cutter hub pipe 21, ensure that the access opening of the drainage tube 20 on fixed guide seat 12 and the endoporus of drainage tube joint 13 align; Knife bar resilience button 4 lower planes be pressed in location ratchet 5 long-armed on, under the effect of curved spring 7, location ratchet 5 can insert respectively blade guard bit skewed slot 16, blade work position skewed slot 14, blade handling position skewed slot 3, thereby realizes three different location positioning; Form the supporting of Telescopic knife bar 18 and axially directed by guiding the rectangle endoporus of anti-rotary seat 8 and 2 of the cylinder endoporus of fixed guide seat 12.The cylinder of Telescopic knife bar 18 is cut flat structural sections and is coordinated with the slotted hole of regulating handle 2, prevents from producing radial rotating between regulating handle 2 and Telescopic knife bar 18, and moving axially of regulating handle 2 limits with shaft block ring 11; On the mounting plane of knife blade 10, there is half hole of dissecing in channel of nitrogen hole 17, the cooling knife blade of ejection nitrogen.
Five, detailed description of the invention
The present invention is in the time of safeguard protection state, and location ratchet 5 is acted on by curved spring 7, and insert in blade guard bit skewed slot 16 at ratchet position, and knife blade 10 retracts to and imports in tapered sleeve 9, and eject on the top of knife bar resilience button 4; When entering abdominal cavity and need to performing the operation, shifting Telescopic knife bar 18 onto moves forward, the relative slippage in inclined-plane of location ratchet 5 and blade guard bit skewed slot 16, location ratchet 5 rotates, ratchet position is exited from blade guard bit skewed slot 16, continue reach ratchet position and enter blade work position skewed slot 14, blocking operation knife bar 18 can not retreat, and knife blade 10 is fixed on operating position; If need to change knife blade 10, continuing to promote operation knife bar 18 moves forward, the relative slippage in inclined-plane of location ratchet 5 and blade work position skewed slot 14, location ratchet 5 rotates, ratchet position is exited from blade work position skewed slot 14, continues reach ratchet position and enters blade handling position skewed slot 3, and blocking operation knife bar 18 can not retreat, blade handling boss 22 stretches out the front end face that imports tapered sleeve 9, can load and unload easily knife blade 10.After completing the replacing of knife blade 10, pin the top of knife bar resilience button 4, making to locate ratchet 5 rotates, ratchet position is exited from the skewed slot 3 of blade handling position, Telescopic knife bar 18 is automatic backing under the effect of Compress Spring 19, until spring wedge 15 withstands the front end face of fixed guide seat 12, unclamp knife bar resilience button 4, location ratchet 5 rotates, insert in blade guard bit skewed slot 16 at ratchet position, knife blade 10 retracts to and imports in tapered sleeve 9, makes laparoscopic surgery cryoprobe in safe storage state; If in this state laparoscopic surgery low temperature cryoprobe is sent into abdominal cavity, import tapered sleeve 9 and play guiding function, and safe and reliable, can not cause accidental injury.When laparoscopic surgery low temperature cryoprobe arrives surgery location, promote Telescopic knife bar 18, knife blade 10 is locked in to operating position; And under the cooperation of Telescopic knife bar 18 rectangular configuration sections and guiding anti-rotary seat 8 central rectangular aperture, knife blade 10 can radial rotating, can carry out easily laparoscopic surgery.In order to prevent the condensation effect of the overheated rust of knife blade 10 and guarantee operation section blood vessel, connect nitrogen in the nitrogen interface 1 of Telescopic knife bar 18, by passing into trace nitrogen gas in channel of nitrogen hole 17, carry out cooling to knife blade 10.In the time there is blood and slime in peritoneoscope, knife blade 10 is fallen back on to safe condition, allow importing tapered sleeve 9 prosopyles invade in blood and slime, access negative pressure drainage bag at drainage tube joint 13, under the effect of negative pressure drainage bag, blood and slime can be collected and be entered negative pressure drainage bag by drainage tube 20, completes the recovery of blood and slime, also can use needle tubing suction blood and slime, create a good working environment to laparoscopic surgery.
The cutter hub sleeve pipe of laparoscopic surgery low temperature cryoprobe of the present invention uses the medical thin-wall stainless steel steel pipe of 10-20mm diameter to adopt necking down process to make, and forms cutter hub pipe 21 in importing Taper Pipe 9; Telescopic knife bar 18 adopts medical heavy wall stainless-steel pipe processing, and other parts adopt medical stainless steel or engineering plastics to shape.
It is the system inventive point of laparoscopic surgery low temperature cryoprobe that the guiding of Telescopic knife bar 18 of the present invention, anti-rotation, flexible, stepping and low temperature cryoprobe, blood and slime reclaim functional design, all belongs to the protection domain of invention.The structural design of any identical functions, the anti-rotating function that changes polygon or the formation of pin guide groove as the cross section of Telescopic knife bar 18 into designs; The blood and slime recovery structure design of other forms on scalpel all falls into protection scope of the present invention, all belongs to and invades right of the present invention.
Claims (8)
1. a laparoscopic surgery low temperature cryoprobe is by nitrogen interface (1), regulating handle (2), blade handling position skewed slots (3), knife bar resilience button (4), location ratchet (5), ratchet bearing pin (6), torsionspring (7), guiding anti-rotary seat (8), import tapered sleeve (9), knife blade (10), shaft block ring (11), fixed guide seat (12), drainage tube joint (13), blade work position skewed slot (14), spring wedge (15), blade guard bit skewed slot (16), channel of nitrogen hole (17), Telescopic knife bar (18), Compress Spring (19), drainage tube (20), cutter hub pipe (21), blade handling boss (22) composition composition, it is characterized in that: cutter hub pipe (21), guiding anti-rotary seat (8), fixed guide seat (12), the flexible guidance system of Telescopic knife bar (18) composition knife bar, guiding anti-rotary seat (8), Compress Spring (19), Telescopic knife bar 18, spring wedge (15) form the resilience system that automatically resets, knife bar resilience button (4), location ratchet (5), ratchet bearing pin (6), torsionspring (7), blade handling position skewed slot (3), a blade work position skewed slot 14), blade guard bit skewed slot 16) composition control and stepping system, guiding anti-rotary seat (8), Telescopic knife bar (18) composition prevent knife bar radial rotating system, drainage tube joint (13), fixed guide seat (12), drainage tube (20) composition blood and slime clearing and retrieving system, nitrogen interface (1), channel of nitrogen hole (17), knife blade (10) composition knife blade low-temperature cooling system.
2. laparoscopic surgery low temperature cryoprobe according to claim 1, is characterized in that: cutter hub sleeve pipe rear end is cutter hub pipe (21), and its front end is to import tapered sleeve (9).
3. laparoscopic surgery low temperature cryoprobe according to claim 1, it is characterized in that: the front end of Telescopic knife bar (18) has blade handling boss (22), thereafter the rectangular configuration section, cylindrical structure section, the cylinder that are successively Telescopic knife bar (18) are cut flat structural sections, and rear end is nitrogen interface (1).
4. laparoscopic surgery low temperature cryoprobe according to claim 1, it is characterized in that: Compress Spring (19) is enclosed within the front end of Telescopic knife bar (18), between guiding anti-rotary seat (8) and spring wedge (15).
5. laparoscopic surgery low temperature cryoprobe according to claim 1, it is characterized in that: the rectangular configuration section of Telescopic knife bar (18) coordinates with the rectangular opening at guiding anti-rotary seat (8) center, complete axially directed two kinds of functions with preventing radial rotating.
6. laparoscopic surgery low temperature cryoprobe according to claim 1, is characterized in that: the access opening of the drainage tube (20) on fixed guide seat (12) and the endoporus of drainage tube joint (13) align.
7. laparoscopic surgery low temperature cryoprobe according to claim 1, is characterized in that: the supporting of the rectangle endoporus of guiding anti-rotary seat (8) and 2 formation Telescopic knife bars of the cylinder endoporus of fixed guide seat (12) (18) and axially directed.
8. laparoscopic surgery low temperature cryoprobe according to claim 1, is characterized in that: half hole of dissecing that has channel of nitrogen hole (17) on the mounting plane of knife blade (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300490.7A CN104042323B (en) | 2014-06-19 | 2014-06-19 | Laparoscopic surgery low temperature cryoprobe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300490.7A CN104042323B (en) | 2014-06-19 | 2014-06-19 | Laparoscopic surgery low temperature cryoprobe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104042323A true CN104042323A (en) | 2014-09-17 |
| CN104042323B CN104042323B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410300490.7A Expired - Fee Related CN104042323B (en) | 2014-06-19 | 2014-06-19 | Laparoscopic surgery low temperature cryoprobe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596058A (en) * | 2016-01-29 | 2016-05-25 | 张玉玲 | Medical cold knife |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662755A (en) * | 1968-08-08 | 1972-05-16 | Leybold Heracus Gmbh & Co Kg | Cryo-scalpel |
| US4823790A (en) * | 1985-11-20 | 1989-04-25 | Alperovich Boris I | Cryogenic-and-ultrasonic scalpel |
| CN101869507A (en) * | 2010-06-21 | 2010-10-27 | 重庆大学 | Cryosurgical scalpel for in vivo minimally invasive operation |
| US20100274236A1 (en) * | 2009-04-23 | 2010-10-28 | Krimsky William S | Apparatuses and methods for applying a cryogenic effect to tissue and cutting tissue |
| CN103519868A (en) * | 2013-10-24 | 2014-01-22 | 南京市秦淮医院 | Cannula scalpel |
-
2014
- 2014-06-19 CN CN201410300490.7A patent/CN104042323B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662755A (en) * | 1968-08-08 | 1972-05-16 | Leybold Heracus Gmbh & Co Kg | Cryo-scalpel |
| US4823790A (en) * | 1985-11-20 | 1989-04-25 | Alperovich Boris I | Cryogenic-and-ultrasonic scalpel |
| US20100274236A1 (en) * | 2009-04-23 | 2010-10-28 | Krimsky William S | Apparatuses and methods for applying a cryogenic effect to tissue and cutting tissue |
| CN101869507A (en) * | 2010-06-21 | 2010-10-27 | 重庆大学 | Cryosurgical scalpel for in vivo minimally invasive operation |
| CN103519868A (en) * | 2013-10-24 | 2014-01-22 | 南京市秦淮医院 | Cannula scalpel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105596058A (en) * | 2016-01-29 | 2016-05-25 | 张玉玲 | Medical cold knife |
| CN105596058B (en) * | 2016-01-29 | 2019-03-05 | 王瑞香 | A kind of medical cryoprobe |
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| Publication number | Publication date |
|---|---|
| CN104042323B (en) | 2016-05-04 |
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