CN105962998B - Puncture outfit sleeve pipe and puncture outfit with same - Google Patents
Puncture outfit sleeve pipe and puncture outfit with same Download PDFInfo
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- CN105962998B CN105962998B CN201610238063.XA CN201610238063A CN105962998B CN 105962998 B CN105962998 B CN 105962998B CN 201610238063 A CN201610238063 A CN 201610238063A CN 105962998 B CN105962998 B CN 105962998B
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- cannula
- length
- outer diameter
- section
- sleeve
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- 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
- A61B2017/3433—Cannulas with different outer diameters of the cannula
Abstract
The invention discloses a puncture outfit sleeve and a puncture outfit with the same, wherein the puncture outfit sleeve comprises: a connecting portion; a sleeve fixing part, the rear end of which is connected to the connecting part; wherein the ferrule fixing portion further comprises: the peripheral surface of the front section is a convex curved surface; the peripheral surface of the middle section is a concave curved surface; the peripheral surface of the rear section is a convex curved surface; wherein, the junction of the front section, the middle section and the rear section is smoothly connected. According to the puncture outfit sleeve and the puncture outfit with the same, the friction force between the sleeve fixing part and the meat wall is increased through the curved surface arrangement of the sleeve fixing part, so that effective fixation is realized; the design structure is simple, when the doctor operates, an external fixing device is not needed, extra operation steps are not needed, and the use is simple; greatly improving the operation completion progress and being safer and more reliable.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a puncture outfit sleeve and a puncture outfit with the same.
Background
Surgery has stepped into the minimally invasive age. The minimally invasive surgery refers to a complex operation in a thoracic cavity or an abdominal cavity performed under a tiny incision, and a puncture outfit is a necessary medical instrument in the minimally invasive surgery. In abdominal cavity examination, abdominal cavity operation and other minimally invasive or surgical operations, a puncture outfit is an indispensable surgical instrument. The puncture instrument can establish an access channel in the abdominal wall of the human body for the laparoscopic or other surgical instruments (e.g., endoscope, scissors, stapler, guide wire, catheter, filter, stent, etc.) to enter into the abdominal cavity and provide a passage for the gas to enter and exit from the abdominal cavity to control the pneumoperitoneum required for the operation to perform the examination or surgical operation. During operation, the puncture outfit sleeve is generally contacted with the micro incision, and the position of the puncture outfit sleeve is properly fixed during the operation so as to meet the requirements of the operation.
In the prior art, the aim is generally achieved by arranging common anti-skid grains on the surface of a puncture outfit sleeve, but the fixing effect is not obvious in the actual operation process; or an auxiliary instrument is additionally arranged on the puncture outfit sleeve to achieve the fixing purpose, but the method increases the difficulty of the operation to a certain extent.
Disclosure of Invention
The purpose of the invention is: the puncture outfit sleeve and the puncture outfit with the same are provided, and the friction force between the section surface of the sleeve fixing part and the meat wall is increased through the curved surface arrangement of the sleeve fixing part, so that effective fixation is realized. The invention is realized by the following technical scheme:
a puncture instrument cannula comprising a connection portion; a sleeve fixing part, the rear end of which is connected to the connecting part; wherein the ferrule fixing portion further comprises: the peripheral surface of the front section is a convex curved surface; the peripheral surface of the middle section is a concave curved surface; the peripheral surface of the rear section is a convex curved surface; wherein, the junction of the front section, the middle section and the rear section is smoothly connected.
The puncture outfit sleeve pipe is hollow pipe, the puncture outfit sleeve pipe further includes sleeve pipe leading portion, the rear end and the sleeve pipe fixed part front end of sleeve pipe leading portion smooth continuous, the preceding terminal surface of sleeve pipe leading portion is the scarf.
The inner diameter of the connecting part, the inner diameter of the sleeve fixing part and the inner diameter of the rear end of the sleeve front part are the same, and the inner diameter of the front end of the sleeve front part is smaller than that of the rear end of the sleeve front part.
Said front section having a maximum outer diameter d1Said middle section having a minimum outer diameter d2Said maximum outer diameter d1Is said minimum outer diameter d 21 to 1.4 times of the total amount of the active ingredient.
The maximum outer diameter d1Is said minimum outer diameter d21-1.2 times of the total weight of the powder.
The rear section having a maximum outer diameter d3Said middle section having a minimum outer diameter d2Said maximum outer diameter d3Is said minimum outer diameter d 21 to 1.5 times of the total amount of the active ingredient.
The maximum outer diameter d3Is said minimum outer diameter d21-1.2 times of the total weight of the powder.
A plurality of anti-slip lines are distributed on the outer peripheral surface of the sleeve fixing part, and the orthographic projections of the anti-slip lines are in an inverted isosceles trapezoid shape.
The length of the front section is length L1The length of the middle section is L2Said length L1And the length L2The ratio of (A) to (B) is in the range of 1:1 to 1: 2.
The length of the rear section is L3The length of the middle section is L2Said length L3And the length L2The ratio of (A) to (B) is 1: 1-1: 2.
The length of the sleeve fixing part is L4The puncture outfit casing is L5(ii) a Length L of the sleeve fixing part4With the puncture device casing L5The ratio range of (A) is: not less than 1: 2.
The invention also provides a puncture outfit which comprises the puncture outfit sleeve.
The puncture outfit sleeve and the puncture outfit with the same have the advantages that the friction force between the section surface of the sleeve fixing part and the meat wall is increased through the curved surface arrangement of the sleeve fixing part, so that effective fixation is realized; the design structure is simple, an external fixing device is not needed, and when a doctor operates the medical instrument, additional operation steps are not needed, so that the use is simple; greatly improving the operation completion progress and being safer and more reliable.
Drawings
FIG. 1 is a schematic view of a penetrator cannula in accordance with an embodiment of the present invention;
FIG. 2 is another schematic view of a penetrator cannula in accordance with an embodiment of the present invention;
FIG. 3 is a perspective view of a puncture cannula according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in FIG. 1, a puncture instrument cannula 10 includes a connecting portion 1 and a cannula fixing portion 2. The rear end of the sleeve fixing part 2 is smoothly connected to the connecting part 1. The sleeve fixing part 2 includes a lower front section 23, a middle section 22, and a rear section 21. The peripheral surface of the front section 23 is a convex curved surface, the peripheral surface of the middle section 22 is a concave curved surface, and the peripheral surface of the rear section 21 is a convex curved surface; the junction of the front section 23 and the middle section 22 is smoothly connected, and the junction of the middle section 22 and the rear section 21 is smoothly connected.
As shown in fig. 2 and 3, the puncture instrument cannula 10 has a hollow circular tubular shape. The puncture instrument sleeve 10 further comprises a sleeve front part 3, the rear end of the sleeve front part 3 is smoothly connected with the front end of the sleeve fixing part 2, the front end surface of the sleeve front part 3 is a bevel plane, and the incision is oval. When the puncture is started, the vertex 31 on the end surface of the cannula front part 3 is firstly contacted with the patient, the contact surface is small, the friction force is small, and the puncture is easy to gradually enter the body of the patient; then, the contact area with the patient is gradually enlarged along the chamfer 32 of the cannula-introducing portion 3 with the apex 31 as a base point, and the frictional force is gradually increased until the cannula-introducing portion 3 is completely inserted into the patient, so that the cannula-fixing portion 2 is inserted into the patient and fixed in place. The front end of the sleeve front part 3 is a bevel plane, the friction is small when the puncture is started, and then the friction is slowly increased, so that the puncture is easy.
As shown in fig. 2 and 3, the inner diameter of the connecting part 1, the inner diameter of the cannula fixing part 2 and the inner diameter of the rear end of the cannula fore part 3 are the same and are larger than the outer diameter of the puncture needle, so that the puncture needle can conveniently penetrate into the puncture cannula; the internal diameter of the 3 front ends of sleeve pipe leading portions is less than the internal diameter of the 3 rear ends of sleeve pipe leading portions, the internal diameter of the 3 front ends of sleeve pipe leading portions reduces from back to front gradually, the internal diameter of the port department of the 3 front ends of sleeve pipe is close to the external diameter of pjncture needle, when the pjncture needle gets into the sleeve pipe, the pjncture needle is hugged closely to the port of the 3 front ends of sleeve pipe leading portions, seamless meeting is formed, and the junction transition is level and smooth, during the operation, be favorable to the puncture to get into the patient internally, the clearance of effectively having avoided between puncture ware sleeve pipe.
The front section 23 has a maximum outer diameter d1The middle section 22 has a minimum outer diameter d2Maximum outer diameter d1Is the minimum outer diameter d2X times of (1)<X ≦ 1.4. Preferably, the maximum outer diameter d1Is the minimum outer diameter d 21 to 1.2 times of<X is less than or equal to 1.2, so that the transition of the joint can be smooth and the friction fixing effect is remarkable due to the double effects of the anti-skidding lines and the curved surface. If the minimum outer diameter d2And maximum outer diameter d1The ratio of (d) is equal, then the entire front section 23 and the middle section 22 are substantially linear, and only the maximum outer diameter d of the anti-slip threads that produce the frictional fixing effect1Greater than said minimum outer diameter d21.4 times of the front section 23, the maximum outer diameter d of the front section 231And minimum outer diameter d2The difference of (2) is great, when fixing at middle section 22, because of great anterior segment 23 has got into the patient internal through the wound, the elasticity of skin is limited, and the leakproofness after the puncture is poor, is difficult to guarantee stable pneumoperitoneum and presses, increases operation risk and patient's misery. When the puncture outfit cannula enters the human body, the middle section 22 of the puncture outfit cannula is easy to cause unnecessary secondary injury to the minimally invasive incision of the patient, and the wound is enlarged.
The rear section 21 having a maximum outer diameter d3The middle section 22 has a minimum outer diameter d2Maximum outer diameter d3Is the minimum outer diameter d2Y times of (1)<Y ≦ 1.5. Preferably, the maximum outer diameter d3Is the minimum outer diameter d 21 to 1.2 times of<Y is less than or equal to 1.2, so that the transition of the joint is smooth and the friction fixing effect is remarkable due to the double effects of the anti-skidding threads and the curved surface. Since the rear section 21 does not enter the human body, the amplitude of the curved surface of the rear section 21, or the minimum outer diameter d2And the maximum outer diameter d3If not too small, since the rear section 21 only achieves a clamping effect; however, for convenience in manufacturing the device and for coordination of appearance, the back section 21 and the front section 23 are generally curved in the same width.
The circumferential surface of the sleeve fixing part 2 is provided with a plurality of anti-skid grains which can be uniformly distributed or non-uniformly distributed, and the requirement of friction force can be met. When the puncture outfit is erected (namely the sleeve connecting part 1 is arranged above and the sleeve front part 3 is arranged below), the orthographic projections of the anti-skid lines on the parallel surfaces of the central axis of the puncture outfit are inverted isosceles trapezoids, so that the whole contact surface is increased, and the friction force is increased. Furthermore, the long bottom edge of the isosceles trapezoid faces upwards, and the short bottom edge of the isosceles trapezoid faces downwards, so that on one hand, the short end of each anti-skid stripe firstly enters the body of a patient, and the long end is driven to enter the body of the patient, and the puncture is easy; on the other hand, after the puncture outfit enters the body of a patient, the long end of each anti-skid stripe is arranged upwards, the short end of each anti-skid stripe is arranged downwards, the puncture outfit can be fixed at any position, the puncture outfit can be effectively prevented from sliding down due to the fact that surgical instruments in the puncture outfit are moved in the operation process, and the connection stability of the puncture outfit is guaranteed.
The length of the sleeve fixing part 2 is L4The length of the puncture outfit sleeve is L5(ii) a Length L of the ferrule fixing portion 24And length L5The ratio range of (A) is: not less than 1: 2. Due to different operating habits of doctors: such as the insertion depth of the puncture outfit cannula, the posture of the patient is different: if the thickness of the meat wall is different, in the present embodiment, it is preferable that the length L of the sleeve fixing part 2 is longer4Length L of puncture outfit sleeve5The ratio range of (A) is: not less than 2: 3. The design is suitable for doctors with different operation habits, is beneficial to different doctors to meet the requirements of different patients and adjusts the insertion depth of the puncture outfit sleeve.
The length of the front section 23 is L1The length of the middle section 22 is L2Said length L1And the length L2The ratio of (A) to (B) is in the range of 1:1 to 1: 2. Because the curved surface diameter range of the front section 23 is large and the front section 23 enters the minimally invasive incision preferentially, if the length of the curved surface of the front section 23 is too long and the diameter is large, the minimally invasive incision is easy to be opened, the size of the incision is enlarged, and secondary trauma is caused, so that the length of the front section 23 is reduced as much as possible during design. In this embodiment, the length L1And the length L2The ratio of (A) to (B) can be set to any value of 1: 1-1: 2. The rear section 21 has a length L3The length of the middle section 22 is length L2Said length L3And the length L2The ratio of (A) to (B) is 1: 1-1: 2. For convenience of manufacture and for the sake of appearance, the front section 23 and the rear section 21 are generally provided substantially identically.
In the present embodiment, it is preferable that the maximum outer diameter d of the front section 23 of the ferrule fixing portion 21The range is 7-18 mmThe minimum outer diameter d of the intermediate section 222The range is 7.5-20 mm, and the maximum outer diameter d of the rear section 213The range is 7-18 mm. Length L of front section 231The range is 5-30 mm, and the length of the middle section 22 is the length L2The range is 10-50 mm, and the length L of the rear section 213The range is 5-30 mm, and the length L of the puncture outfit sleeve5The range is 50-200 mm.
The curved surface arc design of the embodiment has the advantages that a certain diameter difference is arranged between the commonly used abdominal wall fixing area and the abdominal wall external area, the threads are deepened, the tooth profile is stronger, the fixity of the sleeve on the abdominal wall is enhanced, and the contact area between the sleeve wall of the puncture outfit and the abdominal wall is increased when the uneven pipe body with a certain diameter difference enters the abdominal wall due to the contractility or elasticity of muscles of a human body, so that the friction force is increased; after the cannula enters the abdominal wall, the depth of the cannula is different due to the different thicknesses of the abdominal wall, but the abdominal wall area is generally fixed at the position of the middle section 22 or the front section 23, and when the front section 23 is fixed at the abdominal wall area, the middle section 22 and the rear section 21 are both outside the abdominal wall; when the middle section 22 is fixed in the abdominal wall area, the front section 23 is in the abdominal wall and the rear section 21 is outside the abdominal wall; thus, the front and back clamping functions are formed, and the sleeve is favorably fixed.
It should be noted that many variations and modifications of the embodiments of the present invention fully described are possible and are not to be considered as limited to the specific examples of the above embodiments. The above examples are given by way of illustration of the invention and are not intended to limit the invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (11)
1. A puncture outfit sleeve is characterized by comprising
A connecting portion;
a sleeve fixing part, the rear end of which is connected to the connecting part;
wherein the ferrule fixing portion further comprises: the peripheral surface of the front section is a convex curved surface; the peripheral surface of the middle section is a concave curved surface; the peripheral surface of the rear section is a convex curved surface; wherein, the joints of the front section, the middle section and the rear section are smoothly connected; a plurality of anti-slip lines are distributed on the outer peripheral surface of the sleeve fixing part, and the orthographic projections of the anti-slip lines are in an inverted isosceles trapezoid shape.
2. The puncture instrument cannula according to claim 1, wherein the puncture instrument cannula is a hollow circular tube, the puncture instrument cannula further comprises a cannula front portion, a rear end of the cannula front portion is smoothly connected with a front end of the cannula fixing portion, and a front end surface of the cannula front portion is a chamfered surface.
3. The puncture instrument cannula according to claim 2, wherein the connecting portion, the cannula fixing portion, and the cannula leading portion rear end have the same inner diameter, and the cannula leading portion front end has an inner diameter smaller than the inner diameter of the cannula leading portion rear end.
4. The puncture instrument cannula of claim 1, wherein the forward section comprises a maximum outer diameter d1Said middle section having a minimum outer diameter d2Said maximum outer diameter d1And said minimum outer diameter d2Is greater than 1 and less than or equal to 1.4.
5. The penetrator cannula of claim 4, wherein the maximum outer diameter d1And said minimum outer diameter d2Is greater than 1 and less than or equal to 1.2.
6. The penetrator cannula of claim 1, wherein the rear section includes a maximum outer diameter d3Said middle section having a minimum outer diameter d2Said maximum outer diameter d3And said minimum outer diameter d2Is greater than 1 and less than or equal to 1.5.
7. The penetrator cannula of claim 6, wherein the maximum outer diameter d3And said minimum outer diameter d2Is greater than 1 and less than or equal to 1.2.
8. The puncture instrument cannula of claim 1, wherein the length of the front section is length L1The length of the middle section is L2Said length L1And the length L2The ratio of (A) to (B) is in the range of 1:1 to 1: 2.
9. The penetrator cannula of claim 1, wherein the length of the rear section is length L3The length of the middle section is L2Said length L3And the length L2The ratio of (A) to (B) is 1: 1-1: 2.
10. The puncture instrument cannula of claim 1, wherein the cannula mount portion has a length L4The length of the puncture outfit sleeve is L5(ii) a The length L4And the length L5The ratio range of (A) is: not less than 1: 2.
11. A puncture instrument comprising the puncture instrument cannula according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238063.XA CN105962998B (en) | 2016-04-16 | 2016-04-16 | Puncture outfit sleeve pipe and puncture outfit with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238063.XA CN105962998B (en) | 2016-04-16 | 2016-04-16 | Puncture outfit sleeve pipe and puncture outfit with same |
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| Publication Number | Publication Date |
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| CN105962998A CN105962998A (en) | 2016-09-28 |
| CN105962998B true CN105962998B (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610238063.XA Active CN105962998B (en) | 2016-04-16 | 2016-04-16 | Puncture outfit sleeve pipe and puncture outfit with same |
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| CN (1) | CN105962998B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042184A (en) * | 2017-12-21 | 2018-05-18 | 佛山市第人民医院 | A kind of abdominal cavity puncture outfit for expanding positioning |
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|---|---|---|---|---|
| CN101843518A (en) * | 2010-06-07 | 2010-09-29 | 常州威克医疗器械有限公司 | Disposable puncture device |
| CN102499737A (en) * | 2011-11-01 | 2012-06-20 | 东莞微视医疗科技有限公司 | Manufacturing method of visual puncture outfit for disposable laparoscope and puncture outfit implementing same |
| CN103892892A (en) * | 2014-03-01 | 2014-07-02 | 杭州康基医疗器械有限公司 | Improved puncture outfit |
| CN204765824U (en) * | 2015-05-15 | 2015-11-18 | 杭州康基医疗器械有限公司 | Fixed puncture ware of dribbling bag |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6451041B1 (en) * | 1996-02-29 | 2002-09-17 | Stephen P. Moenning | Apparatus for protecting a port site opening in the wall of a body cavity and reducing electrosurgical injuries |
| US8147453B2 (en) * | 2006-03-13 | 2012-04-03 | Applied Medical Resources Corporation | Balloon trocar |
| US8636686B2 (en) * | 2008-04-28 | 2014-01-28 | Ethicon Endo-Surgery, Inc. | Surgical access device |
| CN202173447U (en) * | 2011-07-27 | 2012-03-28 | 苏州法兰克曼医疗器械有限公司 | Puncturing device not easily slipping off in operation |
| CN102949227A (en) * | 2011-08-24 | 2013-03-06 | 苏州天臣国际医疗科技有限公司 | Puncture set |
| CN102327142B (en) * | 2011-08-26 | 2014-02-19 | 东莞麦可龙医疗科技有限公司 | Manufacturing method of cannula puncture outfit for disposable laparoscope and puncture outfit for implementing same |
| WO2015139312A1 (en) * | 2014-03-21 | 2015-09-24 | 上海林超医疗设备科技有限公司 | Puncture outfit for laparoscope |
| CN104983452B (en) * | 2015-05-22 | 2017-10-13 | 东莞麦可龙医疗科技有限公司 | The manufacture method and reducing abdominal cavity puncture outfit of reducing abdominal cavity puncture outfit |
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2016
- 2016-04-16 CN CN201610238063.XA patent/CN105962998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843518A (en) * | 2010-06-07 | 2010-09-29 | 常州威克医疗器械有限公司 | Disposable puncture device |
| CN102499737A (en) * | 2011-11-01 | 2012-06-20 | 东莞微视医疗科技有限公司 | Manufacturing method of visual puncture outfit for disposable laparoscope and puncture outfit implementing same |
| CN103892892A (en) * | 2014-03-01 | 2014-07-02 | 杭州康基医疗器械有限公司 | Improved puncture outfit |
| CN204765824U (en) * | 2015-05-15 | 2015-11-18 | 杭州康基医疗器械有限公司 | Fixed puncture ware of dribbling bag |
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| CN105962998A (en) | 2016-09-28 |
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Address after: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 Applicant after: Jiangsu wind and medical equipment Limited by Share Ltd Address before: Dongsheng Road, Jiangyin city 214437 Jiangsu city of Wuxi province No. 6 D3 Applicant before: Jiangsu wind and medical equipment Co., Ltd |
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