CN203710095U - Puncture device cannula and puncture rod end matching structure - Google Patents
Puncture device cannula and puncture rod end matching structure Download PDFInfo
- Publication number
- CN203710095U CN203710095U CN201320893907.6U CN201320893907U CN203710095U CN 203710095 U CN203710095 U CN 203710095U CN 201320893907 U CN201320893907 U CN 201320893907U CN 203710095 U CN203710095 U CN 203710095U
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- China
- Prior art keywords
- casing tube
- puncture outfit
- puncture
- puncturing lever
- outfit casing
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- 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 - Lifetime
Links
- 238000001746 injection moulding Methods 0.000 claims description 11
- 210000000683 abdominal cavity Anatomy 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 210000001015 abdomen Anatomy 0.000 abstract 1
- 210000004204 blood vessel Anatomy 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 8
- 230000003187 abdominal effect Effects 0.000 description 7
- 230000002792 vascular Effects 0.000 description 5
- 230000007306 turnover Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 238000007912 intraperitoneal administration Methods 0.000 description 2
- 238000002357 laparoscopic surgery Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000002784 stomach Anatomy 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model belongs to the technical field of medical instruments and particularly relates to a puncture device cannula and puncture rod end matching structure. The puncture device cannula and puncture rod end matching structure solves the problem that an existing puncture rod of a puncture device cannot be easily drawn out. The puncture device cannula and puncture rod end matching structure comprises a puncture device cannula and a puncture rod. An annular cavity is formed between the puncture device cannula and the puncture rod. A rod head is arranged at the lower end of the puncture rod. A conical tip is arranged at the outer end of the rod head. The middle of the rod head is larger than the puncture rod in outer diameter. When the puncture rod penetrates through the puncture device cannula, the conical tip of the rod head is exposed out of the lower end of the puncture device cannula. The side of the puncture device cannula is provided with at least one through hole, and the through holes can be communicated with the annular cavity when the puncture rod penetrates through the puncture device cannula. The lower end of the puncture device cannula is provided with an oblique incision. The through holes are formed in the side of the puncture device cannula and located above an upper incision point of the oblique incision. The puncture device cannula and puncture rod end matching structure has the advantages that air intaking and exhausting are smooth, the instantaneous labor for drawing out the puncture rod is small, drawing difficulty is low, operation is convenient, the puncture device cannula is not prone to being separated from the abdominal cavity, and injury to blood vessels of the belly is small.
Description
Technical field
This utility model belongs to technical field of medical instruments, especially relates to a kind of puncture outfit casing tube and puncturing lever end fit structure.
Background technology
In Wicresoft's medical-therapeutic treatment of human body operation, once find focus in body, need operation or excision, in operation process, what first need application is perforator, perforator is a kind ofly to pierce through stomach wall and for other operating theater instruments provide the operating theater instruments that enters body cavity passage, belong to a kind of Minimally Invasive Surgery apparatus.Perforator generally includes as the sleeve assembly of other operating theater instruments admission passages with through the puncturing lever in described sleeve assembly.First, for transdermal, first cut epiderm skin with scalpel, then utilize puncturing lever transdermal and enter body cavity together with sleeve assembly, then extract puncturing lever out, sleeve assembly just can be used as various apparatuses and instrument is introduced intraperitoneal and provide aeration to make stomach wall be elevated to the passage of organ top.In existing perforator use procedure, the sharp sword of puncturing lever end easily hurts patient's abdominal vascular, and after inserting, puncturing lever time need to extract puncturing lever to intraperitoneal aeration or venting, this is because puncturing lever end coordinates tighter with puncture casing, be prone to the not smooth situation of turnover gas, in addition, operator is in the time extracting puncturing lever out, the pressure that coordinates the existence of tightlier adding blood or body fluid to make to puncture in sleeve with puncture casing end due to puncturing lever end increases severely, the extraction difficulty of puncturing lever is large, operation inconvenience, easily cause puncture casing to depart from abdominal cavity, bring certain risk to operation like this.
The problem existing in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.For example, Chinese patent literature discloses a kind of sleeve puncture outfit for laparoscopic surgery [application number: 200420083673.X], and this sleeve puncture outfit that is used for laparoscopic surgery comprises sleeve pipe and nook closing member, and nook closing member comprises needle point, shank, hands handle; Sleeve pipe comprises pipe sheath, the moving shank being combined with described needle point in pipe sheath endoporus, nook closing member has length and the structure that the needle point that makes on it stretches out from described pipe sheath end, shank is ganoid cylinder, needle point has unique cusp and is positioned on the solid termination of described shank, and described needle point is 2 polygonal pyramid bodies that above same or analogous pyramid inclined-plane forms, between each pyramid inclined-plane, between needle point and shank, be smooth, gapless between shank and handle and be fastenedly connected.
The problem that such scheme has solved to a certain extent existing perforator and easily hurts abdominal vascular, but this scheme still exists: turnover gas is not smooth, when the extraction of puncturing lever, requires great effort, and extracts difficulty out large, operation inconvenience, and puncture casing easily departs from the problem in abdominal cavity.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of simple and reasonable, and turnover gas is smooth and easy, extracts little puncture outfit casing tube and the puncturing lever end fit structure of difficulty out.
For achieving the above object, this utility model has adopted following technical proposal: this puncture outfit casing tube and puncturing lever end fit structure, comprise puncture outfit casing tube and can be located in the puncturing lever in puncture outfit casing tube, between described puncture outfit casing tube and puncturing lever, form annular compartment, it is characterized in that, described puncturing lever lower end is provided with outer end and has the bar head of epiconus, described bar centriciput external diameter be greater than puncturing lever external diameter and in the time that puncturing lever is applied in puncture outfit casing tube described in the epiconus of bar head be exposed to puncture outfit casing tube lower end, described puncture outfit casing tube sidepiece is provided with at least one through hole that can connect with annular compartment in the time that puncturing lever is applied in puncture outfit casing tube, the lower end of described puncture outfit casing tube has angular cut, described through hole is arranged on the puncture outfit casing tube sidepiece of the incision superius top of angular cut.In this structure, in the time that puncturing lever is extracted puncture outfit casing tube out, when bar centriciput is positioned at through hole, through hole has been blocked by bar centriciput substantially, through hole and annular compartment are isolated substantially, and at this moment Intraabdominal pressure ratio annular compartment wants large, and at this moment no longer inflation, so bar head plays booster action, make the extraction of puncturing lever more more laborsaving, extraction difficulty is little, in addition, because annular compartment is connected with through hole, gas can be passed in and out by passage, while making to use, pass in and out gas smooth and easy.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, described bar head comprises the middle cylinder that is cylindric and is fixed on puncturing lever lower end, described epiconus is located at the lower end of middle cylinder, be provided with in the upper end of middle cylinder and be frustum of a cone tubular and be fixed on the reducing cylinder on puncturing lever, described epiconus, middle cylinder and reducing cylinder integrated injection molding are in puncturing lever lower end.In this structure, between puncturing lever and bar head, form buffering, be convenient to the pull of puncturing lever, make in addition bar head can fixedly secure in puncturing lever end.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, described puncturing lever lower end is provided with at least one injection moulding through hole, and described bar head forms the joint pin being connected as a single entity with bar head in the time being injected and molded in puncturing lever end in injection moulding through hole.Further strengthen firm degree when puncturing lever is connected with bar head.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, the lateral symmetry of described epiconus is provided with the section of extending along epiconus bus.Abdominal vascular is hurt in arranging of section can avoid using time.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, described section lower end is positioned at the vertex of a cone top of epiconus and forms curved portions, and described section upper end is positioned at the beneath side of cone of epiconus and forms wedge-shaped part.Obviously, curved portions makes to form buffering between epiconus and section.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, the quantity of described through hole is two and is symmetricly set on puncture outfit casing tube.It is more laborsaving when puncturing lever is extracted out.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, the inwall of described puncture outfit casing tube is the large conical surface in little upper end, lower end.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, the outside, middle part of described puncture outfit casing tube is provided with and increases the structure of rubbing.
In above-mentioned puncture outfit casing tube and puncturing lever end fit structure, the described increasing structure of rubbing comprises the frustum ring of some axial distribution successively in puncture outfit casing tube outside, and the large end of described frustum ring is positioned at top.The frictional force that has increased puncture outfit casing tube and abdominal part, while avoiding using, puncture outfit casing tube skids off.
Compared with prior art, this puncture outfit casing tube is with the advantage of puncturing lever end fit structure: turnover gas is smooth and easy, and the extraction moment of puncturing lever takes little effort, and extraction difficulty is little, easy to operate, and puncture casing is difficult for departing from abdominal cavity, little to abdominal vascular infringement.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial sectional view of the present utility model.
Fig. 3 is partial sectional view when puncturing lever is drawn back in this utility model.
In figure, puncture outfit casing tube 1, puncturing lever 2, annular compartment 3, bar head 4, epiconus 41, middle cylinder 42, reducing cylinder 43, injection moulding through hole 44, joint pin 45, through hole 5, section 6, curved portions 61, wedge-shaped part 62, increase rub structure 7, frustum ring 71.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As Figure 1-3, this puncture outfit casing tube and puncturing lever end fit structure, comprise puncture outfit casing tube 1 and can be located in the puncturing lever 2 in puncture outfit casing tube 1, between puncture outfit casing tube 1 and puncturing lever 2, form annular compartment 3, puncturing lever 2 lower ends are provided with outer end and have the bar head 4 of epiconus 41, bar head 4 middle part external diameters be greater than puncturing lever 2 external diameters and in the time that puncturing lever 2 is applied in puncture outfit casing tube 1 epiconus 41 of bar head 4 be exposed to puncture outfit casing tube 1 lower end, puncture outfit casing tube 1 sidepiece is provided with at least one through hole 5 that can connect with annular compartment 3 in the time that puncturing lever 2 is applied in puncture outfit casing tube 1, the lower end of puncture outfit casing tube 1 has angular cut, through hole 5 is arranged on puncture outfit casing tube 1 sidepiece of the incision superius top of angular cut, in this structure, in the time that puncturing lever 2 is extracted puncture outfit casing tube 1 out, when bar head 4 middle parts are positioned at through hole 5 place, through hole 5 has been blocked by bar head 4 middle parts substantially, through hole 5 is isolated substantially with annular compartment 3, at this moment Intraabdominal pressure ratio annular compartment 3 wants large, and at this moment no longer inflation, so bar head 4 plays booster action, make the extraction of puncturing lever 2 more more laborsaving, extraction difficulty is little, in addition, because annular compartment 3 is connected gas can be passed in and out by passage with through hole 5, while making to use, pass in and out gas smooth and easy.
Particularly, the bar head 4 here comprises the middle cylinder 42 that is cylindric and is fixed on puncturing lever 2 lower ends, epiconus 41 is located at the lower end of middle cylinder 42, be provided with in the upper end of middle cylinder 42 and be frustum of a cone tubular and be fixed on the reducing cylinder 43 on puncturing lever 2, epiconus 41, middle cylinder 42 and reducing cylinder 43 integrated injection moldings are in puncturing lever 2 lower ends, make to form buffering between puncturing lever 2 and bar head 4, be convenient to the pull of puncturing lever 2, make in addition bar head 4 can fixedly secure in puncturing lever 2 ends.Firm degree when further having strengthened that puncturing lever 2 is connected with bar head 4, puncturing lever 2 lower ends are provided with at least one injection moulding through hole 44, and bar head 4 forms the joint pin 45 being connected as a single entity with bar head 4 in the time being injected and molded in puncturing lever 2 end in injection moulding through hole 44.
Further, in use for fear of incised wound abdominal vascular, the lateral symmetry of epiconus 41 is provided with the section 6 of extending along epiconus 41 buses.Section 6 lower ends are here positioned at the vertex of a cone top of epiconus 41 and form curved portions 61, and section 6 upper ends are positioned at the beneath side of cone of epiconus 41 and form wedge-shaped part 62 obvious, and curved portions 61 makes to form and cushion between epiconus 41 and section 6.
Preferably, the quantity of through hole 5 is two and is symmetricly set on puncture outfit casing tube 1, more laborsaving when puncturing lever 2 is extracted out.The inwall of puncture outfit casing tube 1 is the large conical surface in little upper end, lower end.
In addition, outside, the middle part of puncture outfit casing tube 1 is provided with and increases the structure 7 of rubbing.The structure 7 of rubbing of the increasing here comprises the frustum ring 71 of some axial distribution successively in puncture outfit casing tube 1 outside, and the large end of frustum ring 71 is positioned at top, has increased like this frictional force of puncture outfit casing tube 1 with abdominal part, and while avoiding using, puncture outfit casing tube 1 skids off.
Specific embodiment described herein is only to the explanation for example of this utility model spirit.This utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used puncture outfit casing tube 1, puncturing lever 2, annular compartment 3, bar head 4, epiconus 41, middle cylinder 42, reducing cylinder 43, injection moulding through hole 44, joint pin 45, through hole 5, section 6, curved portions 61, wedge-shaped part 62 herein, increased the term such as structure 7, frustum ring 71 that rubs, do not got rid of the probability that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with this utility model spirit.
Claims (9)
1. a puncture outfit casing tube and puncturing lever end fit structure, comprise puncture outfit casing tube (1) and can be located in the puncturing lever (2) in puncture outfit casing tube (1), between described puncture outfit casing tube (1) and puncturing lever (2), form annular compartment (3), it is characterized in that, described puncturing lever (2) lower end is provided with outer end and has the bar head (4) of epiconus (41), the epiconus (41) that described bar head (4) middle part external diameter is greater than puncturing lever (2) external diameter and is applied in the bar head (4) of puncture outfit casing tube (1) described in when middle when puncturing lever (2) is exposed to puncture outfit casing tube (1) lower end, described puncture outfit casing tube (1) sidepiece is provided with at least one through hole (5) that can connect with annular compartment (3) in the time that puncturing lever (2) is applied in puncture outfit casing tube (1), the lower end of described puncture outfit casing tube (1) has angular cut, described through hole (5) is arranged on puncture outfit casing tube (1) sidepiece of the incision superius top of angular cut.
2. puncture outfit casing tube according to claim 1 and puncturing lever end fit structure, it is characterized in that, described bar head (4) comprises the middle cylinder (42) that is cylindric and is fixed on puncturing lever (2) lower end, described epiconus (41) is located at the lower end of middle cylinder (42), be provided with in the upper end of middle cylinder (42) and be frustum of a cone tubular and be fixed on the reducing cylinder (43) on puncturing lever (2), described epiconus (41), middle cylinder (42) and reducing cylinder (43) integrated injection molding are in puncturing lever (2) lower end.
3. puncture outfit casing tube according to claim 2 and puncturing lever end fit structure, it is characterized in that, described puncturing lever (2) lower end is provided with at least one injection moulding through hole (44), and described bar head (4) forms the joint pin (45) being connected as a single entity with bar head (4) in the time being injected and molded in puncturing lever (2) end in injection moulding through hole (44).
4. according to the puncture outfit casing tube described in claim 1 or 2 or 3 and puncturing lever end fit structure, it is characterized in that, the lateral symmetry of described epiconus (41) is provided with the section (6) of extending along epiconus (41) bus.
5. puncture outfit casing tube according to claim 4 and puncturing lever end fit structure, it is characterized in that, described section (6) lower end is positioned at the vertex of a cone top of epiconus (41) and forms curved portions (61), and described section (6) upper end is positioned at the beneath side of cone of epiconus (41) and forms wedge-shaped part (62).
6. according to the puncture outfit casing tube described in claim 1 or 2 or 3 and puncturing lever end fit structure, it is characterized in that, the quantity of described through hole (5) is two and is symmetricly set on puncture outfit casing tube (1).
7. according to the puncture outfit casing tube described in claim 1 or 2 or 3 and puncturing lever end fit structure, it is characterized in that, the inwall of described puncture outfit casing tube (1) is the large conical surface in little upper end, lower end.
8. according to the puncture outfit casing tube described in claim 1 or 2 or 3 and puncturing lever end fit structure, it is characterized in that, the outside, middle part of described puncture outfit casing tube (1) is provided with and increases the structure (7) of rubbing.
9. puncture outfit casing tube according to claim 8 and puncturing lever end fit structure, it is characterized in that, the described increasing structure (7) of rubbing comprises the frustum ring (71) of some axial distribution successively in puncture outfit casing tube (1) outside, and the large end of described frustum ring (71) is positioned at top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893907.6U CN203710095U (en) | 2013-12-31 | 2013-12-31 | Puncture device cannula and puncture rod end matching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893907.6U CN203710095U (en) | 2013-12-31 | 2013-12-31 | Puncture device cannula and puncture rod end matching structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203710095U true CN203710095U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893907.6U Expired - Lifetime CN203710095U (en) | 2013-12-31 | 2013-12-31 | Puncture device cannula and puncture rod end matching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203710095U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919656A (en) * | 2016-06-27 | 2016-09-07 | 江苏风和医疗器材有限公司 | Puncture core sharp end, and puncture device and puncture core with puncture core sharp end |
| CN105769301B (en) * | 2016-04-22 | 2019-06-18 | 江苏风和医疗器材股份有限公司 | A kind of puncture core assembly and the puncture outfit with it |
| CN110755141A (en) * | 2019-12-05 | 2020-02-07 | 南京市儿童医院 | High security lumbar vertebrae puncture ware based on sensor |
| CN111759415A (en) * | 2020-06-19 | 2020-10-13 | 浙江工业大学 | Disposable puncture outfit with double-layer tube structure |
-
2013
- 2013-12-31 CN CN201320893907.6U patent/CN203710095U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769301B (en) * | 2016-04-22 | 2019-06-18 | 江苏风和医疗器材股份有限公司 | A kind of puncture core assembly and the puncture outfit with it |
| CN105919656A (en) * | 2016-06-27 | 2016-09-07 | 江苏风和医疗器材有限公司 | Puncture core sharp end, and puncture device and puncture core with puncture core sharp end |
| CN110755141A (en) * | 2019-12-05 | 2020-02-07 | 南京市儿童医院 | High security lumbar vertebrae puncture ware based on sensor |
| CN111759415A (en) * | 2020-06-19 | 2020-10-13 | 浙江工业大学 | Disposable puncture outfit with double-layer tube structure |
| CN111759415B (en) * | 2020-06-19 | 2021-10-29 | 浙江工业大学 | Disposable puncture outfit with double-layer tube structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 311500 Zhejiang province Chunjiang Hangzhou Tonglu Economic Development Zone East Road No. 1668 Patentee after: HANGZHOU KANGJI MEDICAL INSTRUMENT CO.,LTD. Address before: 311500 Tonglu, Zhejiang Province Economic Development Zone, Tonglu, Meilin Road, No. 298, No. Patentee before: HANGZHOU KANGJI MEDICAL INSTRUMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311500 Zhejiang province Chunjiang Hangzhou Tonglu Economic Development Zone East Road No. 1668 Patentee after: HANGZHOU KANGJI MEDICAL INSTRUMENT Co.,Ltd. Address before: 311500 Zhejiang province Chunjiang Hangzhou Tonglu Economic Development Zone East Road No. 1668 Patentee before: HANGZHOU KANGJI MEDICAL INSTRUMENT Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Tonglu County Tonglu Chunjiang Road Economic Development Zone, Hangzhou city of Zhejiang Province, No. 1668 311500 Patentee after: HANGZHOU KANGJI MEDICAL INSTRUMENT Co.,Ltd. Address before: 311500 Zhejiang province Chunjiang Hangzhou Tonglu Economic Development Zone East Road No. 1668 Patentee before: HANGZHOU KANGJI MEDICAL INSTRUMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |