CN102327159A - Dual-purpose vitreous body cutting head - Google Patents
Dual-purpose vitreous body cutting head Download PDFInfo
- Publication number
- CN102327159A CN102327159A CN201110237605A CN201110237605A CN102327159A CN 102327159 A CN102327159 A CN 102327159A CN 201110237605 A CN201110237605 A CN 201110237605A CN 201110237605 A CN201110237605 A CN 201110237605A CN 102327159 A CN102327159 A CN 102327159A
- Authority
- CN
- China
- Prior art keywords
- mobile member
- dual
- cut length
- mobile
- duty
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a dual-purpose vitreous body cutting head which comprises an insertion component with an inner cavity, and a hollow moving component, wherein the hollow moving component is installed in the inner cavity and reciprocates, at least two side holes are formed on the side edge of the insertion component, the bottom of the moving component is opened, an opening is formed on the side wall of the moving component, and upper and lower edges of the opening are incisions. The cutting head is characterized in that the bottom opening of the moving component is a cutting segment, the projections of the cutting segment and the opening on the side wall in the axial direction are not overlapped, the working states of a vitreous body cutter can be switched through the relative rotation of the moving component and the insertion component, and the vitreous body cutter has at least two working states, i.e. A. the cutting segment passes through the holes on the side edge of the insertion component when the moving component reciprocates, and B. all the openings on the side wall pass through the holes on the side edge of the insertion component when the moving component reciprocates. By using the cutting head, the vitreous body cutter has small cutting fluctuation and high cutting efficiency, and can be used for conveniently cutting the vitreous body near the retina.
Description
Technical field
The present invention relates to medical apparatus and instruments, especially a kind ofly be used to cut the Vitrea dual-purpose vitrectomy head of ophthalmic.
Background technology
Vitreous cutter is to be used for the device that the vitreous body in the eyes cut and draws at operation process; Among existing glass body sickle such as the Chinese invention patent application CN1431889A or described in the Chinese utility model patent CN2440479; As depicted in figs. 1 and 2, generally include interface members 302, have the insertion member 304 of inner chamber 314 and near the lateral cavity 308 of its end points.This cutting and suction device 300 further comprise mobile member 310 its have be used for cutting cut end 312, this mobile member 310 is arranged in the inner chamber 314 and goes up and mechanically be to be connected with interface members 302 in operation.This mobile member 310 capable of circulation reciprocally moving forward and backward and drive the sickle front end in inner chamber 314.More particularly, this mobile member cuts end 312 and can move the back, crosses the lateral cavity 308 near end points 306 of inserting member 304, so place the material of lateral cavity one after the other to hold 312 cuttings by cutting.This interface members 302 comprises suction inlet 320, and it is connected to suction source (not shown) by sucking line 322.This suction inlet 320 can carry out liquid with 314 of inner chambers and exchange, so the material of near liquid mobile member 310 and cutting-out is discharged via the inner chamber sucking-off and by suction inlet.This mobile member 310 moves by sickle front end 330 circularly, so the vitreous body material that scales off can be continuously from inner chamber 314 sucking-offs, and can not stop up.
Can find out that in above-mentioned vitreous cutter mobile member 310 mobile is cut into the continuous absorption that impulse movement is unfavorable for suction inlet 320.
A kind of improvement project is proposed in Chinese invention patent 200910303698.3 for this reason; On the insertion member, be provided with two or more holes; And on the mobile member of hollow, be provided with a hole, the distance between two adjacent holes is less than distance following on the hole, when mobile member is inserting when moving back and forth in the member; The following edge mate with hole that goes up in hole is accomplished the glass-cutting body, and vitreous body is via the inner sucking-off of the mobile member of hollow.This kind sickle can keep the seriality of cutting; Being convenient to suction device draws; Reduced the pressure oscillation that causes because of alternate cutting action, but owing on the insertion member, the hole more than 2 is arranged, and the hole is between hole, to move back and forth; Cause this kind sickle when the amphiblestroid vitreous body of cutting vicinity, to use and inconvenience, often need change other vitreous cutter cooperatings.
Summary of the invention
The objective of the invention is:, one simple in structure, safe in utilization, vitreous cutter easily is provided to the deficiency of prior art.
A kind of dual-purpose vitrectomy head; Comprise insertion member with inner chamber and the mobile member that is installed in the hollow that moves reciprocatingly in the inner chamber; On the side that inserts member, have and be no less than 2 lateral cavity; On mobile member, have a perforate, the two edges up and down of this perforate are otch, it is characterized in that: there is one section cut length said mobile member bottom; This cut length and perforate projection does not in the axial direction overlap; Can switch the duty of mobile member through rotating a certain angle relatively between mobile member and the insertion member, mobile member has two kinds of duties at least, and promptly A, mobile member have and only have the bottom cut length through inserting the lateral cavity on the member when moving reciprocatingly; B, mobile member perforate process when moving reciprocatingly is inserted the lateral cavity on the member.
Supplementary technology scheme of the present invention is following:
Preferably, insert the member member rotation that can relatively move.
Preferably, mobile member can insert the member rotation relatively.
Preferably, have 2 holes on the side of insertion member.
Preferably, inserting the scale marker that has on the member.
Preferably, when mobile member was in the A duty, the bottom end opening cut length only cooperated cutting with insertion member lateral cavity bottom when moving back and forth.
Preferably; Also be provided with one section second cut length in the mobile member bottom; This second cut length and perforate projection in the axial direction overlaps, when mobile member is in the B duty, mobile member when moving reciprocatingly perforate and second cut length all through the lateral cavity on the insertion member.When mobile member and insertion member rotated back entering B duty relatively, mobile member was in the reciprocating motion process, and bottom end opening cut length and side-wall hole cooperate cutting with two lateral cavity inserting member.Take the embodiment of this mode can improve the cutting efficiency of vitreous cutter under the B duty.
Preferably, under the A duty, in motor process, there is and has only the bottom cut length through inserting on the member the lateral cavity of below at mobile member.
Preferably; Mobile member is also through Stroke Control switch operating state; And further comprise the C duty: rotate to the relative angle under the B duty between mobile member and the insertion parts, in motor process, have and have only the bottom cut length through lateral cavity below the insertion member through the Stroke Control mobile member.The C duty can reach and the identical cutting effect of A duty, also can conveniently cut the vitreous body near the retina place.Reach and the identical cutting effect of A duty, also can conveniently cut vitreous body near the retina place.
The invention has the beneficial effects as follows: under the B duty; Perforate on the mobile member has to be no less than between 2 holes on the side that inserts member moves; In the process of moving back and forth, all can form cutting action, keep the seriality of cutting, be convenient to suction device and draw; Reduce the pressure oscillation that causes because of alternate cutting action, can also improve the efficient of cutting; After most of vitreous body is drawn completion; When needs cut and draw near the vitreous body of retina part; Can sickle be adjusted to A condition, cooperate cutting with insertion member lateral cavity, can not impact retina by mobile member bottom end opening cut length; Convenient cutting need not to change other sicklies.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the perspective view of existing glass body sickle.
Fig. 2 is the near-end zoomed-in view of vitreous cutter shown in Figure 1.
Fig. 3 is insertion member and the sketch map of mobile member of an embodiment of vitreous cutter of the present invention.
Fig. 4 is that vitreous cutter shown in Figure 3 will insert the sketch map after component partial is cut open.
Fig. 5 is the sketch map of mobile member when the switch operating state of vitreous cutter shown in Figure 3.
Fig. 6 is the sketch map of vitreous cutter shown in Figure 3 under another duty.
Fig. 7 is the sketch map of the mobile member in the vitreous cutter shown in Figure 3.
Fig. 8 is the sketch map of the mobile member in another embodiment of the present invention vitreous cutter.
The specific embodiment
In this example, a kind of optimal way under the A duty, the stroke through the control mobile member makes under the A duty, in motor process, has and have only the bottom cut length through inserting on the member the lateral cavity of below at mobile member.Cutting Control precision and on position that like this can be more convenient be convenient to cut the vitreous body at contiguous retina place.
Embodiments of the invention 2; A kind of vitreous cutter, its structure is similar with embodiment 1, and difference is mobile member 3 wherein; As shown in Figure 8; Also be provided with one section second cut length 6 in the bottom of mobile member 3, this second cut length 6 overlaps with perforate 2 projection in the axial direction, and second cut length 6 and cut length 4 have connected and composed the bottom end opening of mobile member 3 in this example.In this example, when mobile member 3 is in the B duty, mobile member 3 when moving reciprocatingly perforate 2 and second cut length 6 all through inserting the lateral cavity on the member.When after mobile member 3 and insertion member 1 rotate relatively, getting into the B duty; Mobile member is in the reciprocating motion process; Bottom end opening cut length and side-wall hole cooperate cutting with two lateral cavity inserting member, take the embodiment of this mode can improve the cutting efficiency of vitreous cutter under the B duty.
Work process below in conjunction with embodiment 2 further specifies the present invention; When a large amount of cuttings and absorption vitreous body; With sickle as for the B duty: mobile member 3 beginnings are moved from top to bottom; The top edge otch of perforate 2 cooperates cutting downwards with the lateral cavity 5 of top, the bottom end opening of mobile member 3 cooperates cutting with the lateral cavity of below 5; When mobile member 3 continues to move downward, perforate 2 parts appear at down in the hole 5, and vitreous body gets into sicklies via hole 5 down; Mobile member 3 continues to move down, and the top edge otch of perforate 2 appears at down in the hole 5 and cooperates cutting with following hole 5, and the top that last hole is moved member 3 is blocked; After mobile member 3 moves to the bottom, move upward, then the lower limb otch by perforate 2 carries out similar cutting movement.In entire work process, mobile member 3 is constantly being done cutting movement basically, and having guaranteed constantly has vitreous body to be cut extraction, avoided pressure oscillation that interrupted cutting causes and under the situation of identical cutting frequency efficient improve at least 3 times; When the vitreous body at the contiguous retina of cutting place, sickle is placed the A duty, mobile member bottom end opening 4 moves back and forth, and cooperates with below lateral cavity 5 to accomplish cutting.
In this example; Mobile member is also through Stroke Control switch operating state; And further comprise the C duty; Be the relative angle that rotates between mobile member and the insertion parts under the B duty, in motor process, have and have only the bottom cut length through lateral cavity below the insertion member through the Stroke Control mobile member.The C duty can reach and the identical cutting effect of A duty, also can conveniently cut the vitreous body near the retina place.Reach and the identical cutting effect of A duty, also can conveniently cut vitreous body near the retina place.
In the above-described embodiments, observe the insertion depth that inserts member 1 for ease, can be marked with scale marker 6 at the outer side edges subscript that inserts member.In order further to improve cutting efficiency, the lateral cavity 5 above 2 can also be set on the side that inserts member.
Disclosed all characteristics in this description, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this description (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (9)
1. dual-purpose vitrectomy head; Comprise insertion member with inner chamber and the mobile member that is installed in the hollow that moves reciprocatingly in the inner chamber; On the side that inserts member, have and be no less than 2 lateral cavity; On mobile member, have a perforate, the two edges up and down of this perforate are otch, it is characterized in that: there is one section cut length said mobile member bottom; This cut length and perforate projection does not in the axial direction overlap; Can switch the duty of mobile member through rotating a certain angle relatively between mobile member and the insertion member, mobile member has two kinds of duties at least, and promptly A, mobile member have and only have the bottom cut length through inserting the lateral cavity on the member when moving reciprocatingly; B, mobile member perforate process when moving reciprocatingly is inserted the lateral cavity on the member.
2. dual-purpose vitrectomy head according to claim 1 is characterized in that: insert the member member rotation that can relatively move.
3. dual-purpose vitrectomy head according to claim 1 is characterized in that: mobile member can insert the member rotation relatively.
4. according to claim 2 or 3 described dual-purpose vitrectomy heads, it is characterized in that: have 2 holes on the side of insertion member.
5. according to claim 2 or 3 described dual-purpose vitrectomy heads, it is characterized in that: on the insertion member, scale marker is arranged.
6. dual-purpose vitrectomy head according to claim 4 is characterized in that: when mobile member was in the A duty, mobile member bottom end opening cut length when moving back and forth only cooperated cutting with insertion member lateral cavity bottom.
7. dual-purpose vitrectomy head according to claim 4; It is characterized in that: also be provided with one section second cut length in the mobile member bottom; This second cut length and perforate projection in the axial direction overlaps; When mobile member is in the B duty, mobile member when moving reciprocatingly perforate and second cut length all through inserting the lateral cavity on the member.
8. dual-purpose vitrectomy head according to claim 4 is characterized in that: under the A duty, in motor process, have and have only the bottom cut length through inserting on the member the lateral cavity of below at mobile member.
9. dual-purpose vitrectomy head according to claim 4; It is characterized in that: mobile member is also through Stroke Control switch operating state; And further comprise the C duty: rotate to the relative angle under the B duty between mobile member and the insertion parts, in motor process, have and have only the bottom cut length through lateral cavity below the insertion member through the Stroke Control mobile member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110237605 CN102327159B (en) | 2011-08-18 | 2011-08-18 | Dual-purpose vitreous body cutting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110237605 CN102327159B (en) | 2011-08-18 | 2011-08-18 | Dual-purpose vitreous body cutting head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102327159A true CN102327159A (en) | 2012-01-25 |
| CN102327159B CN102327159B (en) | 2013-05-15 |
Family
ID=45479300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110237605 Expired - Fee Related CN102327159B (en) | 2011-08-18 | 2011-08-18 | Dual-purpose vitreous body cutting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102327159B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105960221A (en) * | 2013-12-05 | 2016-09-21 | 诺华股份有限公司 | Dual electromagnetic coil vitrectomy probe |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620547A (en) * | 1983-12-31 | 1986-11-04 | Richard Wolf Gmbh | Instrument for sampling tissue specimens |
| US4811734A (en) * | 1987-08-13 | 1989-03-14 | Baxter Travenol Laboratories, Inc. | Surgical cutting instrument |
| US5106364A (en) * | 1989-07-07 | 1992-04-21 | Kabushiki Kaisha Topcon | Surgical cutter |
| WO1993001757A1 (en) * | 1991-07-19 | 1993-02-04 | L'esperance Medical Technologies, Inc. | Apparatus for removing cataractous-lens tissue |
| US5505210A (en) * | 1989-11-06 | 1996-04-09 | Mectra Labs, Inc. | Lavage with tissue cutting cannula |
| US5630827A (en) * | 1995-06-19 | 1997-05-20 | Dutch Ophthalmic Research Center International Bv | Vitreous removing apparatus |
| CN1431889A (en) * | 2000-03-11 | 2003-07-23 | 约翰霍普金斯大学 | Sutureless ocular surgical methods and instruments used in same |
| CN101378703A (en) * | 2006-02-06 | 2009-03-04 | 爱尔康公司 | Microsurgical instrument |
| CN101584623A (en) * | 2009-06-26 | 2009-11-25 | 杨勋 | Vitreous hummor cutter |
-
2011
- 2011-08-18 CN CN 201110237605 patent/CN102327159B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4620547A (en) * | 1983-12-31 | 1986-11-04 | Richard Wolf Gmbh | Instrument for sampling tissue specimens |
| US4811734A (en) * | 1987-08-13 | 1989-03-14 | Baxter Travenol Laboratories, Inc. | Surgical cutting instrument |
| US5106364A (en) * | 1989-07-07 | 1992-04-21 | Kabushiki Kaisha Topcon | Surgical cutter |
| US5505210A (en) * | 1989-11-06 | 1996-04-09 | Mectra Labs, Inc. | Lavage with tissue cutting cannula |
| WO1993001757A1 (en) * | 1991-07-19 | 1993-02-04 | L'esperance Medical Technologies, Inc. | Apparatus for removing cataractous-lens tissue |
| US5630827A (en) * | 1995-06-19 | 1997-05-20 | Dutch Ophthalmic Research Center International Bv | Vitreous removing apparatus |
| CN1431889A (en) * | 2000-03-11 | 2003-07-23 | 约翰霍普金斯大学 | Sutureless ocular surgical methods and instruments used in same |
| CN101378703A (en) * | 2006-02-06 | 2009-03-04 | 爱尔康公司 | Microsurgical instrument |
| CN101584623A (en) * | 2009-06-26 | 2009-11-25 | 杨勋 | Vitreous hummor cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105960221A (en) * | 2013-12-05 | 2016-09-21 | 诺华股份有限公司 | Dual electromagnetic coil vitrectomy probe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102327159B (en) | 2013-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4099529A (en) | Wide-angle cutter vitrophage | |
| JP6705818B2 (en) | Double-acting vitreous probe with contoured port | |
| CN103405285B (en) | Electric cutting device for rapidly cutting animal corneas | |
| CN103989505B (en) | Dynamical tissue is cuted out except planing system | |
| CN205364058U (en) | Cloth cutting device | |
| CN107307052B (en) | Fish head fish tail device for excising | |
| CN102327159B (en) | Dual-purpose vitreous body cutting head | |
| JP2005261275A (en) | Hedge trimmer | |
| ES2875745T3 (en) | Device for the separation and extraction of tissue pieces | |
| CN109394310B (en) | Self-navigation subcutaneous cyst excision equipment | |
| CN110013287A (en) | A kind of Mirco-traumatic skull drill of improved neurosurgery clinical operation | |
| CN101584623B (en) | Vitreous hummor cutter | |
| CN207901223U (en) | Reciprocating razor | |
| US2130311A (en) | Motor-operated shaver | |
| CN208598478U (en) | A kind of detachable can attract medical operation Cutting instrument for cervical intervertebral disc hyperplasia | |
| CN202497184U (en) | Surgical cutting stitching instrument | |
| CN105196321A (en) | Blade temperature reducible shaver | |
| CN109394311A (en) | Subdermal cyst device for excising | |
| CN103568048B (en) | Air filter tube connector processing unit (plant) and method | |
| CN202064214U (en) | Cloth cutting device | |
| CN205572481U (en) | Move sword adjustment mechanism and adjustable hair clipper | |
| CN212466240U (en) | Puncher for animal wound modeling | |
| CN112602461B (en) | Shoulder-mounted mower | |
| CN215019724U (en) | Three-dimensional moulding device of nose plastic | |
| CN205950811U (en) | Pipe machine is cut out to nylon tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20210818 |