CN105030306A - Puncture outfit - Google Patents
Puncture outfit Download PDFInfo
- Publication number
- CN105030306A CN105030306A CN201510165180.3A CN201510165180A CN105030306A CN 105030306 A CN105030306 A CN 105030306A CN 201510165180 A CN201510165180 A CN 201510165180A CN 105030306 A CN105030306 A CN 105030306A
- Authority
- CN
- China
- Prior art keywords
- puncture
- knife
- connecting cylinder
- groove
- blade
- 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
- 241001149930 Protura <class> Species 0.000 claims abstract description 37
- 241000463219 Epitheca Species 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 9
- 210000001519 tissue Anatomy 0.000 description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000001835 viscera Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002357 laparoscopic surgery Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 208000012260 Accidental injury Diseases 0.000 description 2
- 208000005646 Pneumoperitoneum Diseases 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 2
- 210000000481 breast Anatomy 0.000 description 2
- 210000000589 cicatrix Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010071229 Procedural haemorrhage Diseases 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- 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
- A61B2017/3419—Sealing means between cannula and body
-
- 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
- A61B17/3439—Cannulas with means for changing the inner diameter of the cannula, e.g. expandable
- A61B2017/3441—Cannulas with means for changing the inner diameter of the cannula, e.g. expandable with distal sealing means
Abstract
The invention provides a puncture outfit comprising a puncture needle, a puncture cannula and an outer sheath. The puncture needle is inserted in the puncture cannula, the puncture cannula is provided with a first connecting tube, a connecting groove is formed in the wall of the puncture cannula, the puncture cannula is inserted in the outer sheath, a connecting channel is formed between the connecting groove and the outer sheath, the upper portion of the outer sheath is provided with a second connecting tube, the lower portion of the outer sheath is provided with a ring-shaped air bag, the second connecting tube communicates with the ring-shaped air bag through the connecting channel, the outer sheath is provided with a slidable back-up ring, and the back-up ring is provided with a lock catch used for locking the back-up ring to the outer sheath. The puncture needle comprises a base, a cap, a connecting cylinder, a puncture conehead and a puncture knife. The base is provided with a mounting hole, the connecting cylinder is slidingly disposed in the mounting hole, the puncture knife comprises a blade and a knife bar, the knife bar is inserted in the connecting cylinder and fixed to the cap, and the connecting cylinder is connected with the puncture conehead. Medical workers can conveniently use the puncture outfit, conditions like slip and leakage can be reduced, and the reliability of the puncture outfit can be raised.
Description
Technical field
The present invention relates to medical apparatus and instruments, particularly relate to a kind of perforator.
Background technology
At present, the perforator used in breast, laparoscopic surgery generally includes puncture needle, puncture casing and epitheca, mainly utilize epitheca and sleeve pipe to penetrate tissue, then take inner puncture casing away, set up the entrance of an endoscope and operating theater instruments and organize conveying end.This technology belongs to a part for Minimally Invasive Surgery, and intraoperative hemorrhage is few little to patient effect; Postoperative seam area is little, cicatrix is not obvious, avoids the large area that in open surgery, hemorrhage many situations and the postoperative stitching of open surgery cause and sews up cicatrix.Although perforator of the prior art in breast, laparoscopic surgery, tissue can be set up the entrance of an endoscope and operating theater instruments and organizes conveying end.But in actual operation, particularly in laparoscopic surgery, because need injecting carbon dioxide and pneumascos in abdominal cavity of patients after inserting perforator, abdominal cavity of patients's inwall is separated with internal organs part, sets up the space of an operation.And setting up in pneumoperitoneum process, usually occur the phenomenon of epitheca and the gas leakage of tissue cutting part causing pneumoperitoneum to set up unsuccessfully; In addition, because the epitheca inside of perforator needs to enter endoscope and operating theater instruments in operation, and the needs of taking root according to operation in the whole operation process traditional Chinese medical science constantly can regulate the insertion angle of perforator and back and forth take out or insert operating theater instruments, can cause slippage and the gas leakage of perforator equally; Simultaneously, in piercing process, in order to avoid body inner tissue stops that puncture needle runs, puncture needle is also provided with the blade exposed, owing to exposing all the time with the blade of puncture cutter head, easily occurs in after entering into tissue otch, puncture cutter head accidentally injures human internal organs, therefore, need medical personnel to pay special attention to operating force, increase the operation easier of medical personnel.As from the foregoing, perforator of the prior art be inconvenient to use and reliability and safety lower.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of perforator, and solve perforator in prior art and be inconvenient to use and reliability and the lower defect of safety, realization facilitates medical personnel to use perforator, the reliability of raising perforator and safety.
Technical scheme provided by the invention is, a kind of perforator comprises puncture needle, puncture casing and epitheca, described puncture needle is inserted in described puncture casing, the tube wall of described puncture casing is provided with the first connection tube, described first connection tube is communicated with described puncture casing, the tube wall of described puncture casing also forms link slot, described puncture casing is inserted in described epitheca, interface channel is formed between described link slot and described epitheca, the top of described epitheca is provided with the second connection tube, the bottom of described epitheca is provided with annular air-pocket, described second connection tube is communicated with described annular air-pocket by described interface channel, described epitheca is also provided with slidably back-up ring, described back-up ring is also provided with the snap close for being locked in by described back-up ring on described epitheca, described puncture needle comprises base, block, connecting cylinder, puncture conehead and stab knife, described block is connected on described base, installation cavity is formed between described block and described base, described base offers installing hole, described connecting cylinder is slidably arranged in described installing hole, the end that described connecting cylinder is positioned at described installation cavity arranges overcoat, form shoulder hole between described overcoat and described connecting cylinder, be provided with the first back-moving spring in described shoulder hole, described first back-moving spring is also resisted against on described block, described stab knife comprises the blade and knife bar that link together, the passage had for holding described blade is formed in described puncture conehead, the head of described puncture conehead offers the edge of a knife with described channel connection, described blade slides is arranged in described passage, the cutter head of described blade is inserted in the described edge of a knife, described knife bar to be inserted in described connecting cylinder and to be fixed on described block, and described connecting cylinder is connected with described puncture conehead.
Further, the upper end of described puncture casing is provided with groove, described puncture casing bottom is provided with annular groove, described groove is connected by described link slot with described annular groove, described second connection tube is communicated with described groove, the medial wall of described annular air-pocket is formed with air inlet, and described annular air-pocket is wrapped in the outside of described annular groove, and described air inlet is communicated with described annular groove.
Further, the upper end of described puncture casing is also provided with check valve assembly, and described check valve assembly comprises spool, described spool has body, the Single port of described body is provided with elastic sealing mouth, and described spool is fixed on described puncture casing, and described body is inserted in described puncture casing; When described check valve assembly is in closed condition, the cross section of described elastic sealing mouth is V-structure, and the inside of described elastic sealing mouth forms V-type groove structure.
Further, described check valve assembly also comprises annular valve gap, and described annular valve gap is rotating to be connected on described puncture casing, and described annular valve gap is provided with the open spanner be oppositely arranged, the free end of described open spanner is pyramidal structure, and described open spanner is inserted in described body; When described check valve assembly is in closed condition, the free end of described open spanner is arranged in described V-type groove structure; When described check valve assembly is in open mode, the free end of described open spanner is resisted against on the inwall of described elastic sealing mouth.
Further, be also provided with airtight circle in described annular valve gap, described puncture needle is inserted in described airtight circle.
Further, described mount pad also offers jack, described base is provided with postive stop baffle again, described postive stop baffle is formed with stopper slot, the end of described postive stop baffle is also provided with location pin; Described jack slides and is provided with pin, and the end that described pin is positioned at described installation cavity is also provided with locating support, and described locating support is also provided with draw-in groove, is also provided with the second back-moving spring between described locating support and described block; Described outer putting is provided with limited block and push rod, and described push rod is between described locating support and described base; Under the state that the cutter head of described blade does not stretch out the described edge of a knife, described limited block is arranged in described stopper slot, and described location lever is stuck in described draw-in groove; Under the state that the cutter head of described blade stretches out the described edge of a knife, described push rod is resisted against on described locating support, and described limited block is positioned at outside described stopper slot, and described location lever is positioned at outside described draw-in groove.
Further, described locating support is U-shaped structure, and described locating support is enclosed within the outside of described connecting cylinder.
Further, also connection tube is provided with between described connecting cylinder and described puncture conehead.
Further, described puncture conehead is formed with sunk structure perpendicular to the both sides of the described edge of a knife.
Further, the mouth of pipe of described first connection tube is provided with can the valve of switch, is provided with check valve in described second connection tube.
Perforator provided by the invention, by arranging back-up ring and annular air-pocket on puncture casing, during operation, perforator is inserted the cutting part of patient, annular air-pocket is inserted in human body completely, then, inflated or water filling in annular air-pocket by the second connection tube, make annular air-pocket inflating clip in vivo, and by the back-up ring on slip human body, back-up ring is reclined on the skin of the patient and by snap close, back-up ring is locked on epitheca, under the mating reaction of annular air-pocket and back-up ring, make firm the fixing on a patient body and reduce the probability occurring landing of perforator, simultaneously, patient's otch with it can effectively block again by annular air-pocket, the phenomenon leaked air is avoided to occur, reduce the phenomenon occurring slippage and gas leakage, in addition, by arranging the first back-moving spring between connecting cylinder and block, connecting cylinder can be realized move back and forth on base, when when puncturing, puncture conehead is subject to the resistance of tissue, promotion connecting cylinder is close to block direction and moves by puncture conehead, thus the blade of stab knife is exposed from the edge of a knife, the cutter head of blade exposes and will cut tissue from the edge of a knife, puncture can be carried out smoothly, and after the broken tissue of cutting, under the effect of the first back-moving spring, connecting cylinder will reset rapidly, make the cutter head of blade be punctured conehead fast again to shelter from, thus avoid the situation generation that cutter head exposes appearance accidental injury human internal organs all the time, and, also requirement is reduced to the operation precision of medical personnel, realization facilitates medical personnel to use perforator, improve the reliability of perforator.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the axonometric chart of perforator embodiment of the present invention;
Fig. 2 is the sectional view of perforator embodiment of the present invention;
Fig. 3 is the close-up schematic view of a-quadrant in Fig. 2;
Fig. 4 is the close-up schematic view in B region in Fig. 2;
Fig. 5 is the assembling explosive view of puncture casing and check valve assembly in perforator embodiment of the present invention;
Fig. 6 is the structural representation of spool in perforator embodiment of the present invention;
Fig. 7 be in Fig. 6 C-C to sectional view;
Fig. 8 is the structural representation of annular valve gap in perforator embodiment of the present invention;
Fig. 9 be in Fig. 8 D-D to sectional view;
Figure 10 is the front view that perforator embodiment of the present invention is in state one;
Figure 11 is the front view that perforator embodiment of the present invention is in state two;
Figure 12 is the structural representation that the present invention has the puncture needle embodiment of cutter head;
Figure 13 is the explosive view that the present invention has the puncture needle embodiment of cutter head;
Figure 14 is the partial perspective cutaway view that the present invention has the puncture needle embodiment of cutter head;
Figure 15 is the partial perspective view that the present invention has the puncture needle embodiment of cutter head.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Fig. 1-Figure 15, the present embodiment perforator, comprising: puncture needle 1, puncture casing 2 and epitheca 3, described puncture needle 1 is inserted in described puncture casing 2, the tube wall of described puncture casing 2 is provided with the first connection tube 21, described first connection tube 21 is communicated with described puncture casing 2, the tube wall of described puncture casing 2 also forms link slot 22, described puncture casing 2 is inserted in described epitheca 3, interface channel is formed between described link slot 22 and described epitheca 3, the top of described epitheca 3 is provided with the second connection tube 31, the bottom of described epitheca 3 is provided with annular air-pocket 4, described second connection tube 31 is communicated with described annular air-pocket 4 by described interface channel, described epitheca 3 is also provided with slidably back-up ring 5, described back-up ring 5 is also provided with the snap close 51 for being locked in by described back-up ring 5 on described epitheca 3.Puncture needle 1 comprises: base 12, block 13, connecting cylinder 14, puncture conehead 11 and stab knife 15, described block 13 is connected on described base 12, installation cavity 100 is formed between described block 13 and described base 12, described base 12 offers installing hole 121, described connecting cylinder 14 is slidably arranged in described installing hole 121, the end that described connecting cylinder 14 is positioned at described installation cavity 100 arranges overcoat 141, shoulder hole (not shown) is formed between described overcoat 141 and described connecting cylinder 14, the first back-moving spring 16 is provided with in described shoulder hole, described first back-moving spring 16 is also resisted against on described block 13, the external diameter of described overcoat 141 is greater than the bore of installing hole 121, described stab knife 15 comprises the blade 151 and knife bar 152 that link together, the passage (not shown) had for holding described blade 151 is formed in described puncture conehead 11, the head of described puncture conehead 11 offers the edge of a knife 111 with described channel connection, described blade 151 is slidably arranged in described passage, the cutter head of described blade 151 is inserted in the described edge of a knife 111, described knife bar 152 to be inserted in described connecting cylinder 14 and to be fixed on described block 13, described connecting cylinder 14 is connected with described puncture conehead 11, is exposed at outside puncture casing 2 outside puncture conehead 11.
Specifically, the present embodiment perforator is inserted into the cutting part of patient in use, and annular air-pocket 4 is placed in otch completely, then, to be annotated in annular air-pocket 4 gas or liquid by the second connection tube 31, make annular air-pocket 4 expand and be close in otch, at this moment, snap close 51 unclamped and snap close 51 is locked by the epidermis of back-up ring 5 to the patient that slides, under the mating reaction of annular air-pocket 4 and back-up ring 5, making solid and reliable being fixed in the otch of patient of the present embodiment perforator.As shown in Figure 10, be annular air-pocket 4 unswollen state, and shown in Figure 11, for annular air-pocket 4 is in swelling state.Wherein, the upper end of puncture casing 2 is provided with groove 24, described puncture casing 2 bottom is provided with annular groove 23, described groove 24 is connected by described link slot 22 with described annular groove 23, described second connection tube 31 is relative with described groove 23 and be communicated with, the medial wall of described annular air-pocket 4 is formed with air inlet (not shown), described annular air-pocket 4 is wrapped in the outside of described annular groove 23, described air inlet is communicated with described annular groove 23, second connection tube 31 is successively by groove 24, link slot 22 and described annular groove 23 realize being communicated with annular air-pocket 4.In addition, the mouth of pipe of the first connection tube 21 is provided with can the valve 211 of switch, is provided with check valve 311 in described second connection tube 31.And puncture needle 1 is provided with the connecting cylinder 14 that can slide on base 12, and be provided with the first back-moving spring 161 for connecting cylinder 14 between connecting cylinder 14 and block 13 and reset, connecting cylinder 14 connects puncture conehead 11, and stab knife 15 is fixedly connected with block 13 and is inserted in connecting cylinder 14, the blade 151 of stab knife 15 is arranged in puncture conehead 11, and the cutter head of blade 151 is inserted in the edge of a knife 111.In use, when the conehead 11 that punctures runs into tissue obstruction, puncture conehead 11 is examined and is close to block 13 by promoting elastic force that connecting cylinder 14 overcomes the first back-moving spring 161 and moves, thus make the cutter head of blade 151 expose broken for tissue cutting from the edge of a knife 111, to guarantee that puncture is carried out smoothly.And after tissue cutting is broken, connecting cylinder 14 resets under the effect of the first back-moving spring 161, what make puncture conehead 11 wraps blade 151 again, under puncture conehead 11 is in non-stress, the cutter head of blade 151 is positioned at inside the edge of a knife 111, avoids blade 151 and exposes all the time and occur to lose human internal organs.
Further, leak to avoid the CO2 injected in patient body when endoscope and operating theater instruments are extracted in operation, the upper end of described puncture casing 2 is also provided with check valve assembly, described check valve assembly comprises spool 61, described spool 61 has body 611, the Single port of described body 611 is provided with elastic sealing mouth 612, and described spool 61 is fixed on described puncture casing 2, and described body 611 is inserted in described puncture casing 2; When described check valve assembly is in closed condition, the cross section of described elastic sealing mouth 612 is V-structure, and the inside of described elastic sealing mouth 612 forms V-type groove structure, makes elastic sealing mouth 612 form yi word pattern close mouth and realizes sealing.Concrete, when endoscope and operating theater instruments pull out from puncture casing 2, elastic sealing mouth 612 is closed automatically by natural resiliency, leaks to avoid the CO2 in patient body.Wherein, being convenient to endoscope and operating theater instruments enters in patient body through elastic sealing mouth 612, check valve assembly also comprises annular valve gap 62, described annular valve gap 62 is rotating to be connected on described puncture casing 2, described annular valve gap 62 is provided with the open spanner 621 be oppositely arranged, the free end of described open spanner 621 is pyramidal structure, and described open spanner 621 is inserted in described body 611; When described check valve assembly is in closed condition, the free end of described open spanner 621 is arranged in described V-type groove structure; When described check valve assembly is in open mode, the free end of described open spanner 621 is resisted against on the inwall of described elastic sealing mouth 612, opens with the elastic sealing mouth 612 made.Preferably, be also provided with airtight circle 63 in annular valve gap 62, airtight circle 63 is fixed in annular valve gap 62 by fixed cap 631, and described puncture needle 1 is inserted in described airtight circle 63.Concrete, when being extracted from puncture casing 2 by puncture needle 1, airtight circle 63 and elastic sealing mouth 612 coordinate and can better play the function avoiding CO2 to leak, same, CO2 also can be avoided to leak when endoscope and operating theater instruments turnover.
Further, in order to avoid in piercing process, puncture conehead 11 makes blade 151 expose because frictional force is excessive, mount pad 12 also offers jack 122, described base 12 is provided with again postive stop baffle 19, described postive stop baffle 19 is formed with stopper slot 191, and the end of described postive stop baffle 19 is also provided with location pin 192; Described jack 122 slides and is provided with pin 182, the end that described pin 182 is positioned at described installation cavity 100 is also provided with locating support 18, described locating support 18 is also provided with draw-in groove 182, between described locating support 18 and described block 13, is also provided with the second back-moving spring 162; Described overcoat 141 is provided with limited block 142 and push rod 143, described push rod 143 is between described locating support 18 and described base 12; Under the state that the cutter head of described blade 151 does not stretch out the described edge of a knife 111, described limited block 142 is arranged in described stopper slot 191, and described location lever 192 is stuck in described draw-in groove 182; Under the state that the cutter head of described blade 151 stretches out the described edge of a knife 111, described push rod 143 is resisted against on described locating support 18, and described limited block 142 is positioned at outside described stopper slot 191, and described location lever 192 is positioned at outside described draw-in groove 182.Concrete, by arranging locating support 18 and postive stop baffle 19 on base 12, when not needing blade 151 to stretch out, location lever 192 will be stuck in the draw-in groove 182 of locating support 18, thus locating support 18 is maintained static, the push rod 143 of restriction below moves up by locating support 18, thus guarantee that blade 151 can not be exposed at outside the edge of a knife 111 outward, realize carrying out locking to blade 111, guarantee when puncturing, puncture conehead 11 can not make blade 151 expose because frictional force is excessive, be more conducive to improving safety; And when needs blade 151 cuts, medical personnel are by applying pressure to block 13, pin 182 will be resisted against on fixed cap 631, thus location lever 192 is separated from draw-in groove 182, and now, locating support 18 will apply pressure to postive stop baffle 19 simultaneously, postive stop baffle 19 is bent, thus limited block 142 is detached from stopper slot 191, drive connecting cylinder 14 moves by after resistance by puncture conehead 11, makes blade 151 stretch out the edge of a knife 111.Wherein, locating support 18 can be U-shaped structure, and described locating support 18 is enclosed within the outside of described connecting cylinder 14, so that overall package.
Further again, for the ease of assembly and disassembly, between described connecting cylinder 14 and described puncture conehead 11, be also provided with connection tube 17.Concrete, connection tube 17 is fastened with described connecting cylinder 14 and described puncture conehead 11 respectively, and when assembly and disassembly, handled easily personnel carry out assembly and disassembly fast.And preferred, in order to expose the cutter head of blade 151 fully, puncture conehead 11 is formed with sunk structure 112 perpendicular to the both sides of the described edge of a knife 111, and the cutter head of blade 151 more effectively can expose and cuts by sunk structure 112 fully.
The present embodiment perforator, by arranging back-up ring and annular air-pocket on puncture casing, during operation, perforator is inserted the cutting part of patient, annular air-pocket is inserted in human body completely, then, inflated or water filling in annular air-pocket by the second connection tube, make annular air-pocket inflating clip in vivo, and by the back-up ring on slip human body, back-up ring is reclined on the skin of the patient and by snap close, back-up ring is locked on epitheca, under the mating reaction of annular air-pocket and back-up ring, make firm the fixing on a patient body and reduce the probability occurring landing of perforator, simultaneously, patient's otch with it can effectively block again by annular air-pocket, the phenomenon leaked air is avoided to occur, reduce the phenomenon occurring slippage and gas leakage, in addition, by arranging the first back-moving spring between connecting cylinder and block, connecting cylinder can be realized move back and forth on base, when when puncturing, puncture conehead is subject to the resistance of tissue, promotion connecting cylinder is close to block direction and moves by puncture conehead, thus the blade of stab knife is exposed from the edge of a knife, the cutter head of blade exposes and will cut tissue from the edge of a knife, puncture can be carried out smoothly, and after the broken tissue of cutting, under the effect of the first back-moving spring, connecting cylinder will reset rapidly, make the cutter head of blade be punctured conehead fast again to shelter from, thus avoid the situation generation that cutter head exposes appearance accidental injury human internal organs all the time, and, also requirement is reduced to the operation precision of medical personnel, realization facilitates medical personnel to use perforator, improve the reliability of perforator.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a perforator, is characterized in that, comprising: puncture needle, puncture casing and epitheca, described puncture needle is inserted in described puncture casing, the tube wall of described puncture casing is provided with the first connection tube, described first connection tube is communicated with described puncture casing, the tube wall of described puncture casing also forms link slot, described puncture casing is inserted in described epitheca, interface channel is formed between described link slot and described epitheca, the top of described epitheca is provided with the second connection tube, the bottom of described epitheca is provided with annular air-pocket, described second connection tube is communicated with described annular air-pocket by described interface channel, described epitheca is also provided with slidably back-up ring, described back-up ring is also provided with the snap close for being locked in by described back-up ring on described epitheca, described puncture needle comprises base, block, connecting cylinder, puncture conehead and stab knife, described block is connected on described base, installation cavity is formed between described block and described base, described base offers installing hole, described connecting cylinder is slidably arranged in described installing hole, the end that described connecting cylinder is positioned at described installation cavity arranges overcoat, form shoulder hole between described overcoat and described connecting cylinder, be provided with the first back-moving spring in described shoulder hole, described first back-moving spring is also resisted against on described block, described stab knife comprises the blade and knife bar that link together, the passage had for holding described blade is formed in described puncture conehead, the head of described puncture conehead offers the edge of a knife with described channel connection, described blade slides is arranged in described passage, the cutter head of described blade is inserted in the described edge of a knife, described knife bar to be inserted in described connecting cylinder and to be fixed on described block, and described connecting cylinder is connected with described puncture conehead.
2. perforator according to claim 1, it is characterized in that, the upper end of described puncture casing is provided with groove, described puncture casing bottom is provided with annular groove, described groove is connected by described link slot with described annular groove, and described second connection tube is communicated with described groove, and the medial wall of described annular air-pocket is formed with air inlet, described annular air-pocket is wrapped in the outside of described annular groove, and described air inlet is communicated with described annular groove.
3. perforator according to claim 1, it is characterized in that, the upper end of described puncture casing is also provided with check valve assembly, described check valve assembly comprises spool, described spool has body, the Single port of described body is provided with elastic sealing mouth, and described spool is fixed on described puncture casing, and described body is inserted in described puncture casing; When described check valve assembly is in closed condition, the cross section of described elastic sealing mouth is V-structure, and the inside of described elastic sealing mouth forms V-type groove structure.
4. perforator according to claim 3, it is characterized in that, described check valve assembly also comprises annular valve gap, described annular valve gap is rotating to be connected on described puncture casing, described annular valve gap is provided with the open spanner be oppositely arranged, the free end of described open spanner is pyramidal structure, and described open spanner is inserted in described body; When described check valve assembly is in closed condition, the free end of described open spanner is arranged in described V-type groove structure; When described check valve assembly is in open mode, the free end of described open spanner is resisted against on the inwall of described elastic sealing mouth.
5. perforator according to claim 4, is characterized in that, is also provided with airtight circle in described annular valve gap, and described puncture needle is inserted in described airtight circle.
6. perforator according to claim 1, is characterized in that, described mount pad also offers jack, and described base is provided with postive stop baffle again, and described postive stop baffle is formed with stopper slot, and the end of described postive stop baffle is also provided with location pin; Described jack slides and is provided with pin, and the end that described pin is positioned at described installation cavity is also provided with locating support, and described locating support is also provided with draw-in groove, is also provided with the second back-moving spring between described locating support and described block; Described outer putting is provided with limited block and push rod, and described push rod is between described locating support and described base; Under the state that the cutter head of described blade does not stretch out the described edge of a knife, described limited block is arranged in described stopper slot, and described location lever is stuck in described draw-in groove; Under the state that the cutter head of described blade stretches out the described edge of a knife, described push rod is resisted against on described locating support, and described limited block is positioned at outside described stopper slot, and described location lever is positioned at outside described draw-in groove.
7. perforator according to claim 6, is characterized in that, described locating support is U-shaped structure, and described locating support is enclosed within the outside of described connecting cylinder.
8. perforator according to claim 1, is characterized in that, is also provided with connection tube between described connecting cylinder and described puncture conehead.
9. perforator according to claim 1, is characterized in that, described puncture conehead is formed with sunk structure perpendicular to the both sides of the described edge of a knife.
10. perforator according to claim 1, is characterized in that, the mouth of pipe of described first connection tube is provided with can the valve of switch, is provided with check valve in described second connection tube.
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| CN201510165180.3A CN105030306B (en) | 2015-04-09 | 2015-04-09 | Puncture outfit |
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| CN201510165180.3A CN105030306B (en) | 2015-04-09 | 2015-04-09 | Puncture outfit |
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| CN105030306A true CN105030306A (en) | 2015-11-11 |
| CN105030306B CN105030306B (en) | 2017-06-06 |
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Cited By (8)
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| CN105559859A (en) * | 2016-03-14 | 2016-05-11 | 无锡市瑞源普斯医疗器械有限公司 | Puncture cone component of disposable puncture outfit |
| CN108125706A (en) * | 2016-12-01 | 2018-06-08 | 英济股份有限公司 | Puncture outfit set |
| CN109106430A (en) * | 2018-09-07 | 2019-01-01 | 施爱德（厦门）医疗器材有限公司 | Telescopic puncture outfit |
| CN109567887A (en) * | 2019-01-25 | 2019-04-05 | 丁伟 | A kind of minimally invasive fascia stitching unstrument |
| CN110251175A (en) * | 2019-07-09 | 2019-09-20 | 北京天助畅运医疗技术股份有限公司 | A kind of laparoscope puncture stitching unstrument |
| CN112472247A (en) * | 2020-12-14 | 2021-03-12 | 常州安康医疗器械有限公司 | Multifunctional balloon puncture outfit |
| CN113855186A (en) * | 2021-09-24 | 2021-12-31 | 陈兵 | Puncture outfit capable of being fixed automatically and free of puncture knife |
| CN114403992A (en) * | 2021-11-17 | 2022-04-29 | 牡丹江医学院附属红旗医院 | Puncture outfit for telescopic self-cleaning thoracoscope |
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| CN105559859A (en) * | 2016-03-14 | 2016-05-11 | 无锡市瑞源普斯医疗器械有限公司 | Puncture cone component of disposable puncture outfit |
| CN108125706A (en) * | 2016-12-01 | 2018-06-08 | 英济股份有限公司 | Puncture outfit set |
| CN109106430A (en) * | 2018-09-07 | 2019-01-01 | 施爱德（厦门）医疗器材有限公司 | Telescopic puncture outfit |
| CN109567887A (en) * | 2019-01-25 | 2019-04-05 | 丁伟 | A kind of minimally invasive fascia stitching unstrument |
| CN110251175A (en) * | 2019-07-09 | 2019-09-20 | 北京天助畅运医疗技术股份有限公司 | A kind of laparoscope puncture stitching unstrument |
| CN112472247A (en) * | 2020-12-14 | 2021-03-12 | 常州安康医疗器械有限公司 | Multifunctional balloon puncture outfit |
| CN113855186A (en) * | 2021-09-24 | 2021-12-31 | 陈兵 | Puncture outfit capable of being fixed automatically and free of puncture knife |
| CN113855186B (en) * | 2021-09-24 | 2023-08-04 | 陈兵 | Self-fixing puncture outfit without puncture knife |
| CN114403992A (en) * | 2021-11-17 | 2022-04-29 | 牡丹江医学院附属红旗医院 | Puncture outfit for telescopic self-cleaning thoracoscope |
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| CN105030306B (en) | 2017-06-06 |
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