CN204765821U - Pjncture needle and puncture ware with tool bit - Google Patents
Pjncture needle and puncture ware with tool bit Download PDFInfo
- Publication number
- CN204765821U CN204765821U CN201520209986.3U CN201520209986U CN204765821U CN 204765821 U CN204765821 U CN 204765821U CN 201520209986 U CN201520209986 U CN 201520209986U CN 204765821 U CN204765821 U CN 204765821U
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- CN
- China
- Prior art keywords
- puncture
- connecting cylinder
- cutter head
- knife
- 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.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 claims abstract description 11
- 241001149930 Protura <class> Species 0.000 claims description 36
- 241000463219 Epitheca Species 0.000 claims description 9
- 210000001519 tissue Anatomy 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 210000001835 viscera Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 208000012260 Accidental injury Diseases 0.000 description 2
- 210000000589 cicatrix Anatomy 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010071229 Procedural haemorrhage Diseases 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002357 laparoscopic surgery Methods 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
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model provides a pjncture needle and puncture ware with tool bit has the pjncture needle of tool bit, include: base, block, connecting cylinder, puncture conical head and stab knife, the block is connected on the base, forms the installation cavity between block and the base, has offered the mounting hole on the base, and the connecting cylinder slides and sets up in the mounting hole, and the tip that the connecting cylinder lies in the installation cavity sets up the overcoat, forms the shoulder hole between overcoat and the connecting cylinder, is provided with a reset spring in the shoulder hole, and a reset spring still supports and leans on on the block, the stab knife includes blade and the cutter arbor that links together, forms in the puncture conical head to have the passageway that is used for holding the blade, and the edge of a knife that communicates with the passageway is seted up to the head of puncture conical head, and the blade slip sets up in the passageway, and the tool bit of blade is inserted in the edge of a knife, and the cutter arbor is inserted in the connecting cylinder and is fixed on the block, and the connecting cylinder is connected with the puncture conical head. The realization makes things convenient for medical personnel to use pjncture needle and puncture ware with tool bit to improve the reliability of puncture ware.
Description
Technical field
This utility model relates to medical apparatus and instruments, particularly relates to a kind of puncture needle and the perforator with cutter head.
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.And puncture needle of the prior art is divided into and has cutter head and the form without cutter head, for the puncture needle having cutter head, the blade outer head being exposed at puncture needle usually of puncture cutter head, in piercing process, when puncture needle hinders by tissue, puncture cutter head directly can cut tissue open.But, in actual use, owing to exposing all the time with the blade of puncture cutter head, easily occur in after entering into tissue otch, puncture cutter head accidentally injures human internal organs, therefore, needs medical personnel to pay special attention to operating force, increase the operation easier of medical personnel, cause perforator of the prior art to be inconvenient to use and safety is lower.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of puncture needle and the perforator with cutter head, realizes the puncture needle and the perforator that facilitate medical personnel to use to have cutter head, and improves the reliability of perforator.
The technical scheme that this utility model provides is, a kind of puncture needle with cutter head, comprising: 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, described base 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 connection tube is fastened with described connecting cylinder and described puncture conehead respectively.
Further, described puncture conehead is formed with sunk structure perpendicular to the both sides of the described edge of a knife.
This utility model also provides a kind of perforator, comprises puncture casing and epitheca, also comprises the above-mentioned puncture needle with cutter head; The described puncture needle with cutter head is inserted in described puncture casing, and described puncture casing is inserted in described epitheca.
Puncture needle and the perforator of what this utility model provided have cutter head, 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, realize the puncture needle and the perforator that facilitate medical personnel to use to have cutter head, and 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 structural representation that this utility model has the puncture needle embodiment of cutter head;
Fig. 2 is the explosive view that this utility model has the puncture needle embodiment of cutter head;
Fig. 3 is the partial perspective cutaway view that this utility model has the puncture needle embodiment of cutter head;
Fig. 4 is the partial perspective view that this utility model has the puncture needle embodiment of cutter head;
Fig. 5 is the using state reference diagram that this utility model has the puncture needle embodiment of cutter head;
Fig. 6 is the close-up schematic view of a-quadrant in Fig. 5.
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 figs 1 to 6, the present embodiment has the puncture needle of cutter head, comprising: 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, and described connecting cylinder 14 is connected with described puncture conehead 11.
Specifically, the puncture needle that the present embodiment has cutter head 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, in order to avoid in piercing process, puncture conehead 11 makes blade 151 expose because frictional force is excessive, base 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 the epitheca of perforator, 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, 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.
This utility model also provides a kind of perforator, comprises puncture casing 2 and epitheca 3, also comprises the above-mentioned puncture needle 1 with cutter head; The described puncture needle 1 with cutter head is inserted in described puncture casing 2, and described puncture casing 2 is inserted in described epitheca 3.
Puncture needle and the perforator of what this utility model provided have cutter head, 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, realize the puncture needle and the perforator that facilitate medical personnel to use to have cutter head, and 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 (7)
1. there is a puncture needle for cutter head, it is characterized in that, comprising: 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. the puncture needle with cutter head according to claim 1, it is characterized in that, described base also offers jack, described base is provided with postive stop baffle again, 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.
3. the puncture needle with cutter head according to claim 2, is characterized in that, described locating support is U-shaped structure, and described locating support is enclosed within the outside of described connecting cylinder.
4. the puncture needle with cutter head according to claim 1, is characterized in that, is also provided with connection tube between described connecting cylinder and described puncture conehead.
5. the puncture needle with cutter head according to claim 4, is characterized in that, described connection tube is fastened with described connecting cylinder and described puncture conehead respectively.
6. the puncture needle with cutter head 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.
7. a perforator, comprises puncture casing and epitheca, it is characterized in that, also comprise as arbitrary in claim 1-6 as described in the puncture needle with cutter head; The described puncture needle with cutter head is inserted in described puncture casing, and described puncture casing is inserted in described epitheca.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209986.3U CN204765821U (en) | 2015-04-09 | 2015-04-09 | Pjncture needle and puncture ware with tool bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520209986.3U CN204765821U (en) | 2015-04-09 | 2015-04-09 | Pjncture needle and puncture ware with tool bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204765821U true CN204765821U (en) | 2015-11-18 |
Family
ID=54505966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520209986.3U Expired - Fee Related CN204765821U (en) | 2015-04-09 | 2015-04-09 | Pjncture needle and puncture ware with tool bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204765821U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018103573A1 (en) * | 2016-12-09 | 2018-06-14 | 成都五义医疗科技有限公司 | Trocar comprising two protective covers |
| CN108793718A (en) * | 2017-04-27 | 2018-11-13 | 嵊州市和丰玻璃制品有限公司 | A kind of safety glass knife |
| CN109984819A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of assembly method of piercing element and casing |
| 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 |
-
2015
- 2015-04-09 CN CN201520209986.3U patent/CN204765821U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2018103573A1 (en) * | 2016-12-09 | 2018-06-14 | 成都五义医疗科技有限公司 | Trocar comprising two protective covers |
| CN108793718A (en) * | 2017-04-27 | 2018-11-13 | 嵊州市和丰玻璃制品有限公司 | A kind of safety glass knife |
| CN109984819A (en) * | 2017-12-31 | 2019-07-09 | 江苏风和医疗器材股份有限公司 | A kind of assembly method of piercing element and casing |
| CN109984819B (en) * | 2017-12-31 | 2021-08-06 | 江苏风和医疗器材股份有限公司 | Method for assembling puncture element and sleeve |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180227 Address after: 264200 Qu Qu Industrial Park, sheep town, Huancui District, Shandong, Weihai Patentee after: WEIHAI MEDISON MEDICAL EQUIPMENT CO.,LTD. Address before: No. 38 Gold Line top ring No. 38, Shandong, Shandong Patentee before: Xu Chengxue |
|
| 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: 20151118 |