CN104083195A - Minimally invasive puncture device - Google Patents
Minimally invasive puncture device Download PDFInfo
- Publication number
- CN104083195A CN104083195A CN201410335388.0A CN201410335388A CN104083195A CN 104083195 A CN104083195 A CN 104083195A CN 201410335388 A CN201410335388 A CN 201410335388A CN 104083195 A CN104083195 A CN 104083195A
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- China
- Prior art keywords
- puncture
- unlock switch
- puncture device
- dead bolt
- assembly
- 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.)
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Classifications
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B2017/3454—Details of tips
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
- A61B2017/3464—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers
Abstract
The invention discloses a minimally invasive puncture device which comprises a puncture needle assembly, a seal assembly and a puncture sleeve assembly. Two-way unlocking is achieved between the seal assembly and the puncture sleeve assembly through an unlocking switch, and therefore operation is convenient. A protection plate and a rubber valve clack are adopted for matching in the seal assembly, the design is reasonable, and while sealing performance is guaranteed, resistance to the instrument in the passing process is reduced as far as possible. A traditional line-type platypus-type choke valve in the puncture sleeve assembly is replaced with a Y-shaped choke valve for sealing, so that the sealing performance of the puncture device is further improved. An included angle at 90 degrees is formed between the gas inlet direction and the gas outlet direction of a two-way valve on a puncture sleeve, the height and size of the puncture device are greatly reduced, storage and transportation are convenient, and the minimally invasive puncture device has the advantages of being good in sealing performance, convenient to unlock and small in appearance size.
Description
Technical field
Patent of the present invention belongs to medical instruments field, is specifically related to a kind of microtrauma puncture device.
Background technology
Disposable use microtrauma puncture device is the important apparatus in endoscope-assistant surgery, and it is that a kind of breast is outer, abdomen external cavity mirror instrument, is applicable to set up in thoracic cavity, chamber, abdominal cavity spectroscopy and operation process the apparatus of thoracic cavity, abdominal operation service aisle.When laparoscopic surgery starts, with scalpel, at the puncture position of choosing, cut epiderm skin, then with puncture needle part and the puncture casing transdermal of perforator and enter body cavity, form surgical work passage, in operation process, need to guarantee the sealing of devices work passage.Easily gas leakage in existing microtrauma puncture device operation process, is input to Intraabdominal Leakage Gas and is sunk in abdominal cavity and affect normally carrying out of operation.When taking out Operated Specimens and organize in operation, need to be by black box and puncture casing components apart, its black box of existing perforator, can only unidirectional release when release together with puncture casing assembled, uses inconvenient.In addition, the two-port valve airintake direction of perforator and outgassing direction, cause apparatus apparent size large point-blank.
Summary of the invention
The object of the invention is to overcome above-mentioned defect, a kind of novel microtrauma puncture device is provided, this perforator good seal performance, unlocking operation facilitate, apparent size is little.
The technical solution adopted in the present invention is: a kind of microtrauma puncture device, comprises puncture needle assembly, black box and puncture casing assembly.
Black box comprises on seal cover, bracing ring, in sealing ring, screening glass, bracing ring, under rubber flap, bracing ring and capsul.Sealing ring and screening glass are arranged between the two by the interference fit on bracing ring and in bracing ring; rubber flap is arranged between the two by the interference fit in bracing ring and under bracing ring; form choke passage; whole sealing member assembly is pressed between capsul and seal cover by the outer rim of sealing ring again, together with seal cover passes through ultra-sonic welded with capsul.As a kind of preferred structure, rubber flap has 5, and every rubber flap comprises conical surface thinner wall section and the curved portions that is connected to conical surface thinner wall section bottom, and described conical surface thin-walled bottom has the circumference of 180 °-270o, staggered 72 ° of arrangements between rubber flap.
Puncture casing assembly comprises puncture casing, sleeve shell and sleeve pipe upper cover, puncture casing is socketed in sleeve shell, puncture casing is provided with air inlet, this air inlet is connected with the escape pipe on two-port valve, in the cavity of two-port valve, is provided with piston, and two-port valve cavity wall is provided with air inlet pipe and escape pipe, air inlet pipe and escape pipe are 90 ° of angles, the size that can reduce perforator, has reduced apparatus volume, convenient storage and transportation.
On capsul, be provided with two dead bolts, dead bolt bottom forms dead bolt inclined-plane, and dead bolt outside is provided with dead bolt locking face; In unlock switch in puncture casing assembly, correspondence is provided with two locking boss, locking boss upper surface forms the unlock switch inclined-plane corresponding with dead bolt inclined-plane, lower end forms unlock switch locking face, between two locking boss of unlock switch, be provided with release stage clip mounting groove, release stage clip is arranged in this groove, fitting tight assembly coordinates release stage clip compression in the process putting in place in dead bolt inclined-plane during with puncture casing assembly with unlock switch inclined-plane, coordinate the elastic force of release stage clip while putting in place to make unlock switch reverse rotation, dead bolt locking face is buckled in unlock switch locking face; During release, can two-wayly stir the elastic force that unlock switch overcomes release stage clip, unlock switch locking face is separated with dead bolt locking face.
In sleeve shell inner chamber, be provided with air shuttle valve, this air shuttle valve comprises the inner cup portion of being made by elastomeric material, and the bottom surface of this cup is plane, and these bottom surface central authorities are provided with Y-shaped seam, and the sidewall of inner cup portion is provided with three arcuate grooves that angle is relative that stitch with Y-shaped respectively.Three finedraws of described Y-shaped seam are mutually 120 ° of angles.The upper end of described inner cup portion has been provided with the annular flange of interconnect function.Little at apparatus resistance when the Y word gap, and after apparatus is extracted out Y-shaped to be sewn under elastic reaction three finedraw quick-make sealing effectiveness better, prevent that by the enterprising QI KOU of puncture casing, being delivered to endoceliac gas leaks.
The invention has the beneficial effects as follows that (1) screening glass adopts soft plastic rubber material, rubber flap adopts gum elastic material, when having guaranteed sealing, reduce as much as possible apparatus by time resistance; (2) two-port valve airintake direction and outgassing direction 90 degree angles, greatly reduce perforator height dimension, reduced apparatus volume, convenient storage and transportation; (3) unlock switch Bidirectional unlocking structure, when the specimen that needs taking-up to excise in operation is organized, unlock switch is both direction release smoothly forwards, backwards on existing position, makes black box separated with puncture casing assembly quick release, has greatly increased the convenience of operation; (4) sealing of Y-shaped air shuttle valve further promotes the sealing property of perforator.
Accompanying drawing explanation
The structural representation of Fig. 1 microtrauma puncture device of the present invention;
Fig. 2 is the explosive view of microtrauma puncture device of the present invention;
Fig. 3 is the structure chart of the black box of microtrauma puncture device of the present invention;
Fig. 4 is the structure chart of puncture casing assembly of the present invention;
Fig. 5 is the installation diagram of the black box of microtrauma puncture device of the present invention;
Fig. 6 is the top view after the black box of microtrauma puncture device of the present invention assembles;
Fig. 7 is the upward view after the black box of microtrauma puncture device of the present invention assembles;
Fig. 8 is the A-A profile in Fig. 6;
Fig. 9 is the structural representation of seal cover;
Figure 10 is the structural representation of unlock switch;
Figure 11 is the installation diagram of black box of the present invention and sleeve pipe upper cover;
Figure 12 is Figure 11 upward view;
Figure 13 is the structural representation of air shuttle valve;
Figure 14 is puncture needle modular construction schematic diagram;
Figure 15 is puncture needle assembly partial structurtes schematic diagrams.
In figure, 1 puncture needle tubing, 2 puncture hands handles, 3 sight glass locks, 4 torsion springs, 5 seal covers, on 6 bracing rings, 7 sealing rings, 8 screening glass, in 9 bracing rings, 10 rubber flaps, under 11 bracing rings, 12 capsuls, 13 springs, 14 sleeve pipe upper covers, 15 release stage clips, 16 unlock switch, 17 air shuttle valves, 18 sleeve shells, 19 puncture casing, 20 pistons, 21 two-port valves, under 2-1 handle, on 2-2 handle, 2-3 through hole, 2-4 draw-in groove, 3-1 joint pin, 10-1 conical surface thinner wall section, 10-2 curved portions, 12-1 dead bolt, 12-1a dead bolt inclined-plane, 12-1b dead bolt locking face, 14-1 square groove, 16-1 locking boss, 16-1a unlock switch inclined-plane, 16-1b unlock switch locking face, 16-2 release stage clip mounting groove, 16-3 button handsetting, 17-1 annular flange, 17-2 inner cup portion, 17-3 Y-shaped seam, 17-4 arcuate groove, 19-1 air inlet, 21-1 air inlet pipe, 21-2-escape pipe.
The specific embodiment
As depicted in figs. 1 and 2, a kind of microtrauma puncture device, comprises puncture needle assembly 100, black box 200 and puncture casing assembly 300.Black box 200 is together with 300 assemblings of puncture casing assembly, puncture needle assembly 100 coordinates with the assembly of black box 200 and puncture casing assembly 300 in piercing process, after puncture, piercing assembly 100 is separated with the assembly of black box 200 and puncture casing assembly 300, and black box 200 forms operation path with the assembly of puncture casing assembly 300.
As shown in Fig. 2, Figure 14 and Figure 15, puncture needle assembly 100 of the present invention, the Separator of organizing that comprises puncture needle tubing 1 and puncture handle 2 and front end, under the handle of puncture handle 2,2-1 is connected with puncture needle tubing 1, and on handle, 2-2 is fixed under handle 2-1 and goes up, and handle 2 central authorities that puncture are provided with through hole 2-3, under described handle, 2-1 is provided with sight glass lock 3, on sight glass lock 3, be provided with two joint pin 3-1, joint pin 3-1 is stuck in the draw-in groove 2-4 under handle, has at least on a joint pin 3-1 and is provided with torsion spring 4.During use, sight glass is locked to 3 a little to turning up, through hole 3-1 endoscope's bar on handle is inserted in puncture casing 1, after putting in place, unclamp sight glass lock 3, sight glass lock 3 twisting forces due to torsion spring can inwardly push sight glass bar by nature, in using perforator piercing process, endoscope is fixed position in perforator, guarantees that in piercing process, imaging is stable.
With reference to figure 2, Fig. 3 and Fig. 5-Fig. 8, black box of the present invention comprises on seal cover 5, bracing ring 6, in sealing ring 7, screening glass 8, bracing ring 9, under rubber flap 10, bracing ring 11 and capsul 12.Sealing ring 7 and screening glass 8 by bracing ring 6 and bracing ring in 9 interference fit be arranged between the two; rubber flap 10 by bracing ring 9 and bracing ring under 11 interference fit be arranged between the two; form choke passage; whole sealing member assembly is pressed between capsul 12 and seal cover 5 by the outer rim of sealing ring 7 again, together with seal cover 5 passes through ultra-sonic welded with capsul 12.In the present embodiment, rubber flap 10 has 5, and every rubber flap comprises conical surface thinner wall section 10-1 and the curved portions 10-2 that is connected to conical surface thinner wall section bottom, and described conical surface thin-walled bottom has the circumference of 180 °-270,10 staggered 72 ° of arrangements successively of rubber flap.Being staggered of rubber flap 10, presses its conical surface thinner wall section 10-1 folded mutually, forms petal-like channel design, and when apparatus passes this passage, conical surface thinner wall section is closely wrapped up apparatus, has improved sealing property.And the screening glass 8 that is arranged on the passage top of rubber flap 10 formation can be protected rubber flap 10, avoid apparatus to puncture rubber flap 10.Described screening glass 8 adopts soft plastic rubber material, and rubber flap adopts gum elastic material, when having guaranteed sealing, reduce as much as possible apparatus by time resistance.
As shown in Figure 2, puncture casing assembly comprises sleeve pipe upper cover 14, sleeve shell 18 and puncture casing 19 etc., sleeve shell 18 is bowl structure, puncture casing 19 is longitudinally connected to sleeve shell 18 bottom center, sealing is fixed on the sleeve pipe upper cover 14 at these sleeve shell 18 tops, in the cavity of puncture casing 19, be provided with air shuttle valve 17, the sidewall of puncture casing 19 is provided with air inlet 19-1, this air inlet 19-1 is connected with the escape pipe 21-2 on two-port valve 21, in the cavity of two-port valve, be provided with piston 20, two-port valve 21 cavity walls are provided with air inlet pipe 21-1 and escape pipe 21-2, air inlet pipe 21-1 and escape pipe 21-2 are 90 ° of angles.With the two-port valve 21 of piston 20 for conducting with stop perfusion gas to enter by puncture casing 19 or get rid of body cavity.90 ° of angles between the air inlet 21-1 of two-port valve 21 and gas outlet 21-2 in the present invention, can reduce the size of perforator, have reduced apparatus volume, convenient storage and transportation.In sleeve shell inner chamber, be provided with air shuttle valve 17, as shown in figure 13, this air shuttle valve 17 comprises the inner cup portion 17-1 being made by elastomeric material, the bottom surface of this cup is plane, these bottom surface central authorities are provided with Y-shaped seam 17-3, and the sidewall of inner cup portion 17-1 is provided with relative with three angles of Y-shaped seam 17-3 respectively arcuate groove 17-4.Three finedraws of described Y-shaped seam 17-3 are mutually 120 ° of angles.The upper end of described inner cup portion has been provided with the annular flange 17-1 of interconnect function.Little at apparatus resistance when the Y word gap, and after apparatus is extracted out Y-shaped to be sewn under elastic reaction three finedraw quick-make sealing effectiveness better, prevent that by the enterprising QI KOU 19-1 of puncture casing, being delivered to endoceliac gas leaks.
With reference to figure 9-Figure 12, on capsul 12, be provided with two dead bolt 12-1, dead bolt bottom forms dead bolt inclined-plane 12-1a, and dead bolt outside is provided with dead bolt locking face 12-1b; In unlock switch 16 in puncture casing assembly, correspondence is provided with two locking boss 16-1, locking boss 16-1 upper surface forms the unlock switch inclined-plane 16-1a corresponding with dead bolt inclined-plane 12-1a, lower end forms unlock switch locking face 16-1b, between two locking boss 16-1 of unlock switch, be provided with release stage clip mounting groove 16-2, release stage clip 12 is arranged in this groove.When black box 200 and puncture casing assembly 300 are installed, dead bolt 12-1 is through the square groove 14-1 on sleeve pipe upper cover 14, the inclined surface that dead bolt inclined-plane 12-1a acts on unlock switch 16 in puncture casing assembly is on unlock switch inclined-plane 16-1a, originally unlock switch 16 under the elastic force effect of the two release stage clips 15 in left and right in poised state, installing force acts on unlock switch inclined-plane 16-1a by dead bolt inclined-plane 12-1a, the elastic force that overcomes release stage clip 15 makes unlock switch 16 rotations, along with sealing device is in place, after inclined-plane is coupled to end, unlock switch 16 is stopped the rotation and counter-rotates under the elastic force effect of release stage clip 15, dead bolt locking face 12-1b is buckled on unlock switch locking face 16-2b corresponding in unlock switch to be locked on puncture casing assembly.When needs are pulled down black box 200, can two-wayly stir unlock switch 16, unlock switch 16 overcomes the elastic force rotation of release stage clip 15, when unlock switch locking face 16-2b leaves the tongue lock locking face 12-1b of capsul lock, black box can be taken off.For handled easily, in unlock switch 16, be provided with button handsetting 16-3.
Claims (10)
1. a microtrauma puncture device, comprises puncture needle assembly, black box and puncture casing assembly, it is characterized in that: black box comprises seal cover and capsul, and each black box is assembled in seal cover and capsul; On capsul, be provided with two dead bolts, dead bolt bottom forms dead bolt inclined-plane, and dead bolt outside is provided with dead bolt locking face; In unlock switch in puncture casing assembly, correspondence is provided with two locking boss, locking boss upper surface forms the unlock switch inclined-plane corresponding with dead bolt inclined-plane, lower end forms unlock switch locking face, between two locking boss of unlock switch, be provided with release stage clip mounting groove, release stage clip is arranged in this groove, fitting tight assembly coordinates release stage clip compression in the process putting in place in dead bolt inclined-plane during with puncture casing assembly with unlock switch inclined-plane, coordinate the elastic force of release stage clip while putting in place to make unlock switch reverse rotation, dead bolt locking face is buckled in unlock switch locking face; During release, can two-wayly stir the elastic force that unlock switch overcomes release stage clip, unlock switch locking face is separated with dead bolt locking face.
2. a kind of microtrauma puncture device according to claim 1, is characterized in that: in described unlock switch, be provided with button handsetting.
3. a kind of microtrauma puncture device according to claim 1, it is characterized in that: described black box comprises seal cover, on bracing ring, sealing ring, screening glass, in bracing ring, rubber flap, under bracing ring and capsul, sealing ring and screening glass are arranged between the two by the interference fit on bracing ring and in bracing ring, rubber flap is arranged between the two by the interference fit in bracing ring and under bracing ring, form choke passage, whole sealing member assembly is pressed between capsul and seal cover by the outer rim of sealing ring again, together with seal cover passes through ultra-sonic welded with capsul.
4. a kind of microtrauma puncture device according to claim 3, is characterized in that: described rubber flap has 5, and every rubber flap comprises conical surface thinner wall section and the curved portions that is connected to conical surface thinner wall section bottom.
5. a kind of microtrauma puncture device according to claim 4, is characterized in that: described conical surface thin-walled bottom has the circumference of 180 °-270o staggered 72 ° of arrangements between rubber flap.
6. a kind of microtrauma puncture device according to claim 1, it is characterized in that: described puncture casing assembly comprises puncture casing, sleeve shell and sleeve pipe upper cover, puncture casing is socketed in sleeve shell, puncture casing is provided with air inlet, this air inlet is connected with the escape pipe on two-port valve, in the cavity of two-port valve, be provided with piston, two-port valve cavity wall is provided with air inlet pipe and escape pipe, and air inlet pipe and escape pipe are 90 ° of angles.
7. according to a kind of microtrauma puncture device described in claim 1 or 6, it is characterized in that: in sleeve shell inner chamber, be provided with air shuttle valve, this air shuttle valve comprises the inner cup portion of being made by elastomeric material, the bottom surface of this cup is plane, these bottom surface central authorities are provided with Y-shaped seam, and the sidewall of inner cup portion is provided with three arcuate grooves that angle is relative that stitch with Y-shaped respectively.
8. a kind of microtrauma puncture device according to claim 7, is characterized in that: three finedraws of described Y-shaped seam are mutually 120 ° of angles.
9. a kind of microtrauma puncture device according to claim 7, is characterized in that: the upper end of described inner cup portion has been provided with the annular flange of interconnect function.
10. a kind of microtrauma puncture device according to claim 1, it is characterized in that: described puncture needle assembly, the Separator of organizing that comprises puncture needle tubing and puncture handle and front end, under the handle of puncture handle, be connected with puncture needle tubing, be fixed under handle and go up on handle, puncture handle central authorities are provided with through hole, under described handle, be provided with sight glass lock, sight glass is locked and is provided with two joint pins, and joint pin is stuck in the draw-in groove under handle, has at least on a joint pin and is provided with torsion spring.
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CN201410335388.0A CN104083195B (en) | 2014-07-15 | 2014-07-15 | A kind of microtrauma puncture device |
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CN201410335388.0A CN104083195B (en) | 2014-07-15 | 2014-07-15 | A kind of microtrauma puncture device |
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Cited By (22)
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CN104622598A (en) * | 2015-01-26 | 2015-05-20 | 同济大学 | Rat caudal vertebra intercalated disc minimally invasive puncture injection device |
CN104688283A (en) * | 2015-03-17 | 2015-06-10 | 无锡市人民医院 | Accurately-positioning minimally-invading planter |
CN105534576A (en) * | 2016-02-23 | 2016-05-04 | 常州威克医疗器械有限公司 | Disposable puncture outfit |
WO2016074579A1 (en) * | 2014-11-16 | 2016-05-19 | 周星 | Radial seal assembly, end seal and trocar |
CN105769113A (en) * | 2014-12-23 | 2016-07-20 | 广州迪克医疗器械有限公司 | Instrument locking switch and trocar |
CN106901809A (en) * | 2017-03-14 | 2017-06-30 | 张宪祥 | A kind of magnet-type laparoscopic surgery sleeve puncture outfit |
CN107049379A (en) * | 2017-06-03 | 2017-08-18 | 成都五义医疗科技有限公司 | A kind of thimble assembly for including the lock that automatically resets |
CN107468316A (en) * | 2017-09-12 | 2017-12-15 | 温州医科大学附属第二医院温州医科大学附属育英儿童医院 | A kind of adjustable abdominal cavity puncture outfit |
CN107684450A (en) * | 2016-08-03 | 2018-02-13 | 常州安康医疗器械有限公司 | A kind of automatic-sealed of puncture outfit exempts from switching mechanism |
WO2018077226A1 (en) * | 2016-10-31 | 2018-05-03 | 周星 | Seal ring protective piece for puncture outfit, end seal assembly and puncture outfit |
CN108261231A (en) * | 2018-03-12 | 2018-07-10 | 天津青松华药医药有限公司 | A kind of puncture cannula device of small-sized laparoscope puncture outfit |
CN108309368A (en) * | 2017-12-27 | 2018-07-24 | 王晓丽 | A kind of controllable inlet device of laparoscope polar skeleton symbol |
CN108784806A (en) * | 2018-08-21 | 2018-11-13 | 联合微创医疗器械(深圳)有限公司 | A kind of seal assembly and puncture outfit |
CN109223126A (en) * | 2018-09-07 | 2019-01-18 | 天津优外医疗器材制造有限公司 | A kind of lock ring structure, sheath assembly and the puncture outfit of the singlehanded being unlocked by pressing of energy |
CN109259826A (en) * | 2018-08-20 | 2019-01-25 | 荣佳(惠州)医疗器械制造有限公司 | The puncture outfit of high leakproofness |
CN110252563A (en) * | 2019-05-05 | 2019-09-20 | 青岛汉柏塑料科技有限公司 | A kind of capping of reservoir, nut and spray gun reservoir bindiny mechanism |
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WO2016074579A1 (en) * | 2014-11-16 | 2016-05-19 | 周星 | Radial seal assembly, end seal and trocar |
CN105769113B (en) * | 2014-12-23 | 2017-08-29 | 广州迪克医疗器械有限公司 | Apparatus locking switch and puncture outfit |
CN105769113A (en) * | 2014-12-23 | 2016-07-20 | 广州迪克医疗器械有限公司 | Instrument locking switch and trocar |
CN104622598B (en) * | 2015-01-26 | 2016-08-24 | 同济大学 | Tail intervertebral disc of rat microtrauma puncture injection device |
CN104622598A (en) * | 2015-01-26 | 2015-05-20 | 同济大学 | Rat caudal vertebra intercalated disc minimally invasive puncture injection device |
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CN104688283B (en) * | 2015-03-17 | 2017-02-01 | 无锡市人民医院 | Accurately-positioning minimally-invading planter |
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