CN104107081A - Thoracic and celiac puncture knife - Google Patents
Thoracic and celiac puncture knife Download PDFInfo
- Publication number
- CN104107081A CN104107081A CN201410343515.1A CN201410343515A CN104107081A CN 104107081 A CN104107081 A CN 104107081A CN 201410343515 A CN201410343515 A CN 201410343515A CN 104107081 A CN104107081 A CN 104107081A
- Authority
- CN
- China
- Prior art keywords
- rod
- bar body
- knife bar
- diameter
- cutter head
- 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.)
- Pending
Links
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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
Abstract
The invention discloses a thoracic and celiac puncture knife, and belongs to the technical field of medical equipment. The thoracic and celiac puncture knife comprises a knife bar body and a knife head which is integrated to one end of the knife bar body and has identical diameter with the same, and a blade is formed on the knife head; the thoracic and celiac puncture knife is characterized in that, an easily-bending transition section is formed between the knife bar body and the knife head, and the diameter of the easily-bending transition section is 1/3 to 1/5 of that of the knife bar body. The knife head with the blade can be bent relative to the knife bar body according to requirements, thus meeting requirements of a surgeon on angles when performing puncture operation on a patient in clinical; the operation can be performed conveniently, operating strength of the surgeon is relieved and puncture efficiency is improved; material can be saved, thus being fit with the call of saving type and energy-saving type economy proposed by the whole society.
Description
Technical field
The invention belongs to medical devices technical field, be specifically related to a kind of thoracic cavity, abdominal paracentesis cutter.
Background technology
Above mentioned stab knife also claims puncture drainage needle or puncture guid needle, is the operating equipment that thoracic cavity, abdominal paracentesis are used.With regard to thoracentesis, stab knife is stung to thoracic wall through skin and enter pleural space, get pleura, pleura intracavitary administration etc. for the hydrops, pneumatosis, hematocele or the pincers that extract in pleural space, respiratory system disease is carried out to Clinics and Practices.
Technical information about stab knife can be seen in Chinese patent literature, as recommending to have " for the puncture guiding needle of Minimally Invasive Surgery " and invention patent mandate notification number CN101543423B to introduce, utility model patent Granted publication CN201422912Y has " a kind of operation supporting sleeve of use capable of being combined and puncture guiding needle ", etc.
Typical as proposed by the applicant design patent Granted publication CN301439549S(drainage needle 1) and CN301439550S(drainage needle 2).
Related stab knife and the current following technical problem of stab knife ubiquity in the clinical use of medical treatment of patent that is not limited to exemplify above: one, identical with the diameter of the knife bar body of rod owing to thering is the diameter of cutter head of blade, especially because cutter head and the knife bar body of rod (are located along the same line) on same axis, thereby when puncturing operation to patient, surgeon cannot operate according to the required angle of puncture operation, particularly, operative doctor can only change its limbs posture and particularly hold the angle of the hands of holding stab knife and change and go to meet the required angle requirement of when puncture, thereby both increased the manipulation strength of operative doctor, be difficult to again ensure the puncture effect of expecting and affect puncture speed, they are two years old, operative doctor is for convenient operation, conventionally before operation, need tool setting head position to carry out bending according to the factor such as patient figure, site of puncture (point of puncture), make to form between cutter head and the knife bar body of rod a rational radian, successfully thrust patient thoracic cavity or intraperitoneal in order to stab knife, but because the diameter at cutter head position is identical with the diameter of the knife bar body of rod, again because the material of stab knife is the rustless steel that intensity is large, thereby bending to go out radian very difficult.The applicant has noticed that aforementioned CN301439549S and CN301439550S form and have radian on the knife bar body of rod, on the knife bar body of rod, form and have a circular arc bending part, but this circular arc bending part is to be formed by machinery by the manufacturer that produces stab knife, can not adapt to all sidedly the puncture angle to all patients, because it is different because of people (patient) that operative doctor makes to form between cutter head and the knife bar body of rod degree of radian size, is random; Its three, because edge structure is lost rationally, thereby affect to a certain extent puncture speed.
For above-mentioned prior art, be necessary rational modification in addition, the applicant has done useful design for this reason, has finally formed technical scheme described below.
Summary of the invention
Task of the present invention is to provide a kind of cutter head that contributes to make to have blade to use according to needing bending with respect to the knife bar body of rod to meet operative doctor to require, be conducive to shorten the puncture time and use and improve puncture efficiency and be of value to and avoid causing the blindness waste of material and use thoracic cavity, the abdominal paracentesis cutter that the energy-saving economic spirit of the economizing type of advocating with the current whole society adapts in clinical angle when patient is implemented to puncture.
Task of the present invention completes like this, a kind of thoracic cavity, abdominal paracentesis cutter, comprise the knife bar body of rod and one be formed in the knife bar body of rod one end and the diameter cutter head identical with the diameter of the knife bar body of rod, on cutter head, form and have blade, be characterised in that: between the described knife bar body of rod and described cutter head, form have an easy bending changeover portion, the diameter of this easy bending changeover portion be the knife bar body of rod diameter 1/3rd to 1/5th.
In a specific embodiment of the present invention, the diameter of the described knife bar body of rod is 3.3-6.6 ㎜.
In another specific embodiment of the present invention, between the described knife bar body of rod and described easy bending changeover portion, form and have a body of rod conical transition zone; Between described cutter head and easy bending changeover portion, form and have a cutter head conical transition zone.
In another specific embodiment of the present invention, the diameter of described body of rod conical transition zone diminishes until identical with the diameter of easy bending changeover portion towards the direction of described easy bending changeover portion gradually from the described knife bar body of rod; From described cutter head, the direction towards easy bending changeover portion diminishes until identical with the diameter of easy bending changeover portion the diameter of described cutter head conical transition zone gradually.
In another specific embodiment of the present invention, the length of described cutter head conical transition zone be described body of rod conical transition zone length 1/3rd to 1/4th.
Also have in a specific embodiment of the present invention, the length of described body of rod conical transition zone is 0.8-1.6 ㎝.
More of the present invention and in a specific embodiment, form and have a drainage tube connector away from one end of described easy bending changeover portion at the described knife bar body of rod, the diameter of this drainage tube connector is 2-4 ㎜, and the length of drainage tube connector be the knife bar body of rod length 1/3rd to 1/4th.
In of the present invention and then a specific embodiment, the length of the described knife bar body of rod is 4-8 ㎝.
Of the present invention again more and in a specific embodiment, described blade comprises first, second, third, fourth cutting edge and the 5th cutting edge, first, second cutting edge is formed in the both sides of described cutter head each other with symmetry status, the 3rd cutting edge is formed in the middle position of cutter head, the 4th cutting edge is formed in first, between the 3rd cutting edge, the 5th cutting edge is formed between second, third cutting edge.
In again of the present invention and then a specific embodiment, the described knife bar body of rod and described cutter head are rustless steel, and this stainless trade mark is stainless steel 304.
Technical scheme provided by the invention is owing to forming and having an easy bending changeover portion between the knife bar body of rod and cutter head, thereby the cutter head with blade can be according to needing bending with respect to the knife bar body of rod, meets operative doctor in clinical angle requirement when patient is implemented puncture and performed the operation; The extremely required angle of bending effortlessly because cutter head can facilitate with respect to the knife bar body of rod, thereby can conveniently perform the operation, alleviate the manipulation strength of operative doctor and improve puncture efficiency; Due to the diameter of easy bending changeover portion is designed to the knife bar body of rod diameter 1/3rd to 1/5th, thereby can save material, economizing type and the energy-saving economic spirit advocated with the current whole society match.
Brief description of the drawings
Fig. 1 is embodiments of the invention structure chart.
Detailed description of the invention
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but be not all the restriction to the present invention program to the description of embodiment, any done according to the present invention design only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
The concept of every directivity that relates to left and right (or claiming directionality) is all for the residing location status of figure being described in the following description, object is to facilitate public understanding, thereby can not be understood as being particularly limited technical scheme provided by the invention.
Embodiment 1:
Refer to Fig. 1, provided a knife bar body of rod 1 and one and be formed in the cutter head 2 of equal diameters one end (shown position right-hand member) and diameter and the knife bar body of rod 1 of the knife bar body of rod 1, on cutter head 2, the right-hand member at cutter head 2 forms and has blade 21.
Technical essential as technical scheme provided by the invention: form and have an easy bending changeover portion 3 between the aforesaid knife bar body of rod 1 and aforesaid cutter head 2, this easy bending changeover portion 3 also can be described as the fragile section of intensity or other similar technical characterictic appellation, and the diameter of this easy bending changeover portion 3 is 1/3rd of knife bar body of rod diameter, because the diameter of the knife bar body of rod 1 in the present embodiment is 3.3 ㎜, thereby easily the diameter of bending changeover portion 3 is 1.1 ㎜.
As shown in Figure 1, between the right-hand member of the aforementioned knife bar body of rod 1 and the left end of aforementioned easy bending changeover portion 3, form and have a body of rod conical transition zone 11; And form and have a cutter head conical transition zone 22 between the left end of aforementioned cutter head 2.The diameter of body of rod conical transition zone 11 diminishes until identical with the diameter of easy bending changeover portion 3 towards the direction of the left end of easy bending changeover portion 3 gradually from the knife bar body of rod 1, from 3.3 ㎜ until be varied down to 1.1 ㎜; The direction of the diameter of aforementioned cutter head conical transition zone 22 right-hand member towards easy bending changeover portion 3 from cutter head 2 diminishes gradually until identical with the diameter of easy bending changeover portion 3, from 3.3 ㎜ until diminish to 1.1 ㎜.
In the present embodiment, the length of aforementioned cutter head conical transition zone 22 be body of rod conical transition zone 11 length 1/4th, and the length of body of rod conical transition zone 11 in the present embodiment is 1.6 ㎝, thereby the length of cutter head conical transition zone 22 is 0.4 ㎝.
Form and have a drainage tube connector 12 at the left end of the knife bar body of rod 1 away from one end of easy bending changeover portion 3 at the aforesaid knife bar body of rod 1, the diameter of this drainage tube connector 12 is 2 ㎜, and length is 2 ㎝.The length of the knife bar body of rod 1 in the present embodiment is 8 ㎝.
Please continue to refer to Fig. 1, aforesaid blade 21 comprises first, second, third, fourth cutting edge 211,212,213,214 and the 5th cutting edge 215, first, second cutting edge 211,212 is formed in the both sides of aforementioned cutter head 2 each other with symmetry status, the 3rd cutting edge 213 is formed in the middle position of cutter head 2, the 4th cutting edge 214 is formed in first, between the 3rd cutting edge 211,213, the 5th cutting edge is formed between second, third cutting edge 212,213.In order to ensure safe and sanitary, the aforementioned knife bar body of rod 1 and described cutter head 2 are rustless steel, and this stainless trade mark is stainless steel 304.
Embodiment 2:
Only change the diameter of the knife bar body of rod into 6.6 ㎜, change the diameter of easy bending changeover portion 3 into 1.32 ㎜; Change the length of body of rod conical transition zone 11 into 0.9 ㎝, change the length of cutter head conical transition zone 22 into 0.3 ㎝; Change the diameter of drainage tube connector 12 into 4 ㎜, and change the length of drainage tube connector 12 into 2.5 ㎝, and the length of the knife bar body of rod 1 changes 7.5 ㎝ into.All the other are all with the description to embodiment 1.
Embodiment 3:
Only change the diameter of the knife bar body of rod 1 into 4.8 ㎜, change the diameter of easy bending changeover portion 3 into 1.2 ㎜; Change the length of body of rod conical transition zone 11 into 1.2 ㎝, change the length of cutter head conical transition zone 22 into 0.4 ㎝; Change the diameter of drainage tube connector 12 into 2 ㎜, and change the length of drainage tube connector 12 into 2 ㎝, the length of the knife bar body of rod 1 changes 6 ㎝ into.All the other are all with the description to embodiment 1.
The present invention's corresponding size (parameter) scope that tool setting club shaft 1, body of rod conical transition zone 11, drainage tube connector 12, cutter head conical transition zone 22, easy bending changeover portion 3 limit is in the above produced breast, the abdominal paracentesis cutter of plurality of specifications.
The length of the knife bar body of rod 1 described in embodiment 1 to 3 does not comprise the length of body of rod conical transition zone 11, easy bending changeover portion 3, cutter head tapering transition section 22 and cutter head 2.
In sum, technical scheme provided by the invention has overcome the deficiency in prior art, has completed invention task, has cashed faithfully the technique effect referring in the superincumbent technique effect of applicant hurdle.
Claims (10)
1.
a kind of thoracic cavity, abdominal paracentesis cutter, comprise the knife bar body of rod (1) and one be formed in the knife bar body of rod (1) one end and the diameter cutter head (2) identical with the diameter of the knife bar body of rod (1), there is blade (21) in the upper formation of cutter head (2), it is characterized in that: between the described knife bar body of rod (1) and described cutter head (2), form have an easy bending changeover portion (3), the diameter of this easy bending changeover portion (3) be the knife bar body of rod (1) diameter 1/3rd to 1/5th.
2.
thoracic cavity according to claim 1, abdominal paracentesis cutter, the diameter that it is characterized in that the described knife bar body of rod (1) is 3.3-6.6 ㎜.
3.
thoracic cavity according to claim 1, abdominal paracentesis cutter, is characterized in that forming and having a body of rod conical transition zone (11) between the described knife bar body of rod (1) and described easy bending changeover portion (3); Between described cutter head (2) and easy bending changeover portion (3), form and have a cutter head conical transition zone (22).
4.
thoracic cavity according to claim 3, abdominal paracentesis cutter, is characterized in that the diameter of described body of rod conical transition zone (11) diminishes until identical with the diameter of easy bending changeover portion (3) towards the direction of described easy bending changeover portion (3) gradually from the described knife bar body of rod (1); The diameter of described cutter head conical transition zone (22) diminishes until identical with the diameter of easy bending changeover portion (3) towards the direction of easy bending changeover portion (3) gradually from described cutter head (2).
5.
according to the thoracic cavity described in claim 3 or 4, abdominal paracentesis cutter, the length that it is characterized in that described cutter head conical transition zone (22) be described body of rod conical transition zone (11) length 1/3rd to 1/4th.
6.
thoracic cavity according to claim 5, abdominal paracentesis cutter, the length that it is characterized in that described body of rod conical transition zone (11) is 0.8-1.6 ㎝.
7.
according to thoracic cavity, abdominal paracentesis cutter described in claim 1 or 3 or 4, it is characterized in that forming and having a drainage tube connector (12) away from one end of described easy bending changeover portion (3) at the described knife bar body of rod (1), the diameter of this drainage tube connector (12) is 2-4 ㎜, and the length of drainage tube connector (12) be the knife bar body of rod (1) length 1/3rd to 1/4th.
8.
thoracic cavity according to claim 7, abdominal paracentesis cutter, the length that it is characterized in that the described knife bar body of rod (1) is 4-8 ㎝.
9.
breast according to claim 1 chamber, abdominal paracentesis cutter, it is characterized in that described blade (21) comprises first, second, the 3rd, the 4th cutting edge (211, 212, 213, 214) the and five cutting edge (215), first, the second cutting edge (211, 212) be formed in each other the both sides of described cutter head (2) with symmetry status, the 3rd cutting edge (213) is formed in the middle position of cutter head (2), the 4th cutting edge (214) is formed in first, the 3rd cutting edge (211, 213) between, the 5th cutting edge (215) is formed in second, the 3rd cutting edge (212, 213) between.
10.
thoracic cavity according to claim 1, abdominal paracentesis cutter, is characterized in that the described knife bar body of rod (1) and described cutter head (2) are rustless steel, and this stainless trade mark is stainless steel 304.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343515.1A CN104107081A (en) | 2014-07-18 | 2014-07-18 | Thoracic and celiac puncture knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410343515.1A CN104107081A (en) | 2014-07-18 | 2014-07-18 | Thoracic and celiac puncture knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104107081A true CN104107081A (en) | 2014-10-22 |
Family
ID=51704204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410343515.1A Pending CN104107081A (en) | 2014-07-18 | 2014-07-18 | Thoracic and celiac puncture knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104107081A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976684A (en) * | 1988-11-21 | 1990-12-11 | Johnson & Johnson Orthopaedics, Inc. | Method of using a bendable trocar |
| CN101049253A (en) * | 2005-12-26 | 2007-10-10 | 舍伍德服务股份公司 | Reinforced tool for medical needle |
| CN101453949A (en) * | 2006-06-02 | 2009-06-10 | 旭石墨尼龙株式会社 | Puncture needle and lancet having it |
| US20090234273A1 (en) * | 2008-03-17 | 2009-09-17 | Alfred Intoccia | Surgical trocar with feedback |
| US20110276073A1 (en) * | 2003-05-01 | 2011-11-10 | Swan Valley Medical Incorporated | Cystotomy Catheter Capture Device |
| CN102802544A (en) * | 2009-04-02 | 2012-11-28 | 脊柱诊察公司 | Minimally invasive discectomy |
| CN203620048U (en) * | 2013-12-20 | 2014-06-04 | 江苏爱源医疗科技有限公司 | Guide puncture needle |
| CN203988270U (en) * | 2014-07-18 | 2014-12-10 | 常熟市三星弹簧制造厂 | Thoracic cavity, abdominal paracentesis cutter |
-
2014
- 2014-07-18 CN CN201410343515.1A patent/CN104107081A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976684A (en) * | 1988-11-21 | 1990-12-11 | Johnson & Johnson Orthopaedics, Inc. | Method of using a bendable trocar |
| US20110276073A1 (en) * | 2003-05-01 | 2011-11-10 | Swan Valley Medical Incorporated | Cystotomy Catheter Capture Device |
| CN101049253A (en) * | 2005-12-26 | 2007-10-10 | 舍伍德服务股份公司 | Reinforced tool for medical needle |
| CN101453949A (en) * | 2006-06-02 | 2009-06-10 | 旭石墨尼龙株式会社 | Puncture needle and lancet having it |
| US20090234273A1 (en) * | 2008-03-17 | 2009-09-17 | Alfred Intoccia | Surgical trocar with feedback |
| CN102802544A (en) * | 2009-04-02 | 2012-11-28 | 脊柱诊察公司 | Minimally invasive discectomy |
| CN203620048U (en) * | 2013-12-20 | 2014-06-04 | 江苏爱源医疗科技有限公司 | Guide puncture needle |
| CN203988270U (en) * | 2014-07-18 | 2014-12-10 | 常熟市三星弹簧制造厂 | Thoracic cavity, abdominal paracentesis cutter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |