CN204581454U - The side opening trocar - Google Patents
The side opening trocar Download PDFInfo
- Publication number
- CN204581454U CN204581454U CN201520259918.8U CN201520259918U CN204581454U CN 204581454 U CN204581454 U CN 204581454U CN 201520259918 U CN201520259918 U CN 201520259918U CN 204581454 U CN204581454 U CN 204581454U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- puncture needle
- groove
- trocar
- side opening
- 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
Landscapes
- Surgical Instruments (AREA)
Abstract
This utility model belongs to the trocar, refers to a kind of side opening trocar especially.Comprise puncture needle, be set in the sleeve pipe of puncture needle outer surface, the outer surface of sleeve pipe offers the groove be communicated with its tube chamber vertically, and the width of groove is 1.5-2.5 millimeter; The longitudinal section of puncture needle and sleeve pipe is oval, and puncture needle needle point is in the triangular pyramid structure caved inward, and two proximal surface places are wherein provided with the transition cambered surface caved inward.Large to the squeeze pressure of lower edge on rib when this utility model solves the trocar puncturing that prior art exists, the high and problems such as pain is strong in corrective surgery process of penetration Resistance.Have that penetration Resistance is low, patient pain feels light and drainage tube such as easily to discharge at the advantage.
Description
Technical field
This utility model belongs to the trocar, refers to a kind of side opening trocar especially.
Background technology
The trocar at present for auxiliary intrathoracic pipe mainly contains: 1, Y jacket bobbin intrathoracic drain implantation; 2, traditional thorax quill pin.Tradition thorax quill pin and Y molded cannula needle construction are stainless steel material, primarily of puncture needle and trocar sheath composition, needle body is about 5cm-6cm, external diameter is 3mm-7mm, intrathoracic drain is inserted by trocar sheath afterbody, front end discharges, therefore require that the bore front-end and back-end of intrathoracic drain are consistent, the various ends being not suitable for wide clinical application expand intrathoracic drain, current various end expands intrathoracic drain intrathoracic and enters all to adopt surgery chest wall cutaneous to cut, vascular forceps blunt separation Intercostal muscle, the method that auxiliary intrathoracic drain is inserted, operation technique is complicated, hemorrhage many, tissue injury is large, be restricted in Respiratory Medicine promotion and application.
Applicant discloses a kind of drainage tube side releasing trocars in the utility model patent of 200620128069.3, comprises puncture needle, is set in the sleeve pipe of puncture needle outer surface; The outer surface of sleeve pipe offers the groove be communicated with its tube chamber vertically, above-mentioned prior art Problems existing one be puncture needle and sleeve pipe coaxial cooperation and longitudinal section for circular, particularly during heavy caliber trocar puncturing, large to the squeeze pressure of lower edge on rib, penetration Resistance is high.Two is puncture needle needle points is 3 straight prismatic inclined-planes, and particularly during heavy caliber trocar puncturing, needle point penetration Resistance is large, and needle point 3 prismatic knuckle cutting rib periosteal, in corrective surgery process, pain is strong.。
Summary of the invention
The purpose of this utility model provides a kind of side opening trocar, and large to lower edge squeeze pressure on rib when solving the puncture of current existing apparatus, patient pain feels strong problem.
Overall technology design of the present utility model is:
The side opening trocar, comprises puncture needle, is set in the sleeve pipe of puncture needle outer surface, and the outer surface of described sleeve pipe offers the groove be communicated with its tube chamber vertically, and the width of groove is 1.5-2.5 millimeter; Described puncture needle and the longitudinal section of sleeve pipe are oval, and puncture needle needle point is in the triangular pyramid structure caved inward, and two proximal surface places are wherein provided with the transition face caved inward.
Concrete structure design of the present utility model also has:
For ease of the location of sleeve pipe, be convenient to the release of drainage tube, preferred technical scheme is simultaneously, and described cannula end outer surface is radially extended with a retaining boss, stops on ring and offers the opening with groove adaptation.
More further preferred technical scheme is, the anterior coaxial sleeve of described seam is equipped with an obstruction ring, stops ring and adopts seam to coordinate with retaining boss, stops on ring and offers the straight opening with groove adaptation.
Coordinate firm for ease of sleeve pipe and puncture needle and be easy to synchronously enter chest, preferred technical scheme is, the leading exterior surface of sleeve pipe is taper variable-diameter structure, and its front inner surface adopts closely connected cooperation with the outer surface of puncture needle.
For reducing the pain of performing the operation and causing patient, be convenient to sleeve pipe simultaneously and enter chest, preferred technical scheme is, described sleeve pipe front end and the junction, middle part of sleeve pipe adopt smooth surface transition.
Consider easy to make, simultaneously for ease of the release of drainage tube, preferred technical scheme is, described groove is a wide groove.
Using method of the present utility model is as follows:
Sleeve pipe is thrust in company with puncture needle through between patient's rib, treats that sleeve pipe enters thoracic cavity backed off after random puncture needle, after intrathoracic drain is inserted thoracic cavity along cannula cavity, exit sleeve pipe and drainage tube is discharged along the groove that sleeve pipe is offered.
Technological progress acquired by this utility model is:
1, sleeve pipe and puncture needle longitudinal section ovalize, the extruding to lower edge on rib when decreasing trocar puncturing, reduces penetration Resistance and patient pain's sense, ensure that in heavy caliber drainage tube thoracic cavity and insert smoothly.
2, needle tip is in the puncture inclined design that caves inward, and makes needle tip sharper, and thoracentesis resistance declines.
3, transition face structure between needle tip two proximal surface, when breast is worn, upper limb and the lower edge of corresponding rib is up and down distinguished on each inclined-plane of needle tip, reduces the sharp sexual stimulus to patient's rib periosteal, reduces its pain degree.
4, stop the design of ring, effectively ensure that sleeve pipe location and drainage tube release.
Accompanying drawing explanation
Accompanying drawing of the present utility model has:
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the left view of Fig. 1.
Reference numeral in accompanying drawing is as follows:
1, puncture needle; 2, sleeve pipe; 3, groove; 4, retaining boss; 5, ring is stopped.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further described; but conduct is not to further restriction of the present utility model; the content that protection domain of the present utility model is recorded with claims is as the criterion; any equivalent technical elements of making according to this description is replaced, and does not all depart from protection domain of the present utility model.
The overall structure of the present embodiment is as diagram, and comprising puncture needle 1, the sleeve pipe 2 being set in puncture needle 1 outer surface, the outer surface of described sleeve pipe 2 offers the groove 3 be communicated with its tube chamber vertically, and the width of groove 3 is 1.5-2.5 millimeter; Described puncture needle 1 and the longitudinal section of sleeve pipe 2 are oval, and puncture needle needle point is in the triangular pyramid structure caved inward, and two proximal surface places are wherein provided with the transition face caved inward.
Described sleeve pipe 2 distal outer surface is radially extended with a retaining boss 4, stops on ring 5 and offers the opening with groove 3 adaptation.
The described anterior coaxial sleeve of seam 4 is equipped with an obstruction ring 5, stops ring 5 and adopts seam to coordinate with retaining boss 4, stops on ring 5 and offers the straight opening with groove 3 adaptation.
The leading exterior surface of sleeve pipe 2 is taper variable-diameter structure, and its front inner surface adopts closely connected cooperation with the outer surface of puncture needle 1.
Described sleeve pipe 2 front end and the junction, middle part of sleeve pipe 2 adopt smooth surface transition.
Described groove 3 is a wide groove.
Claims (6)
1. the side opening trocar, comprise puncture needle (1), be set in the sleeve pipe (2) of puncture needle (1) outer surface, the outer surface of described sleeve pipe (2) offers the groove (3) be communicated with its tube chamber vertically, and the width of groove (3) is 1.5-2.5 millimeter; It is characterized in that the longitudinal section of described puncture needle (1) and sleeve pipe (2) is for oval, puncture needle (1) needle point is in the triangular pyramid structure caved inward, and two proximal surface places are wherein provided with the transition face caved inward.
2. the side opening trocar according to claim 1, is characterized in that described sleeve pipe (2) distal outer surface is radially extended with a retaining boss (4).
3. the side opening trocar according to claim 2, it is characterized in that described seam (4) anterior coaxial sleeve is equipped with an obstruction ring (5), stopping ring (5) adopts seam to coordinate with retaining boss (4), stops on ring (5) and offers the straight opening adaptive with groove (3).
4. the side opening trocar according to claim 1, it is characterized in that the leading exterior surface of described sleeve pipe (2) is taper variable-diameter structure, and its front inner surface adopts closely connected cooperation with the outer surface of puncture needle (1).
5. the side opening trocar according to claim 4, is characterized in that the junction, middle part of described sleeve pipe (2) front end and sleeve pipe (2) adopts smooth surface transition.
6. the side opening trocar according to claim 1, is characterized in that described groove (3) is a wide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259918.8U CN204581454U (en) | 2015-04-27 | 2015-04-27 | The side opening trocar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520259918.8U CN204581454U (en) | 2015-04-27 | 2015-04-27 | The side opening trocar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204581454U true CN204581454U (en) | 2015-08-26 |
Family
ID=53917664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520259918.8U Expired - Fee Related CN204581454U (en) | 2015-04-27 | 2015-04-27 | The side opening trocar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204581454U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107058A (en) * | 2015-09-22 | 2015-12-02 | 四川省人民医院 | Oval diversion safe indwelling needle |
| CN106139265A (en) * | 2016-07-14 | 2016-11-23 | 遵义医学院附属医院 | Chest drainage embedded device |
| CN110381863A (en) * | 2017-03-08 | 2019-10-25 | 康美公司 | The trochar that single inner chamber gas for maintaining stable cavity pressure to pass through entrance without permission instrument during endoscopic procedures seals |
-
2015
- 2015-04-27 CN CN201520259918.8U patent/CN204581454U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107058A (en) * | 2015-09-22 | 2015-12-02 | 四川省人民医院 | Oval diversion safe indwelling needle |
| CN105107058B (en) * | 2015-09-22 | 2018-11-02 | 四川省人民医院 | A kind of ellipse shunt safety type remaining needle |
| CN106139265A (en) * | 2016-07-14 | 2016-11-23 | 遵义医学院附属医院 | Chest drainage embedded device |
| CN110381863A (en) * | 2017-03-08 | 2019-10-25 | 康美公司 | The trochar that single inner chamber gas for maintaining stable cavity pressure to pass through entrance without permission instrument during endoscopic procedures seals |
| CN110381863B (en) * | 2017-03-08 | 2023-08-22 | 康美公司 | Single lumen gas-tight trocar for maintaining stable lumen pressure during endoscopic surgical procedures without allowing instruments to enter therethrough |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204379379U (en) | A kind of puncture convergent divergent channel of multilayer nest | |
| CN204581454U (en) | The side opening trocar | |
| CN104093371B (en) | Operation trochar | |
| EP2873385A3 (en) | Electrosurgical coagulation instrument including a suction pipe and a collapsible tip | |
| CN108992768A (en) | A kind of brain surgery expander and the brain Path Setup method using the expander | |
| MX2020011024A (en) | Dual lumen coaxial introducer having integrated tissue marker delivery. | |
| CN209122412U (en) | A kind of guide type bone cement propeller and combinations thereof | |
| CN203970506U (en) | Safety anesthesia spinal needle and epidural catheter | |
| CN203576562U (en) | Novel cannula for transurethral laparoscopic surgery | |
| CN103908732B (en) | The space expander of device for endoscopic thyroid surgery | |
| CN103142294B (en) | Ultrasound guided puncture pin | |
| CN105056313A (en) | Hand-held flushing and suction apparatus | |
| CN108143469B (en) | Puncture sheath | |
| CN205795743U (en) | Traction device is assisted to peritoneoscope | |
| CN204543230U (en) | A kind of kidney fistulation sacculus dilating catheter | |
| CN209203416U (en) | It is anchored screw-in intervertebral foramen former | |
| CN211834660U (en) | Lead extraction expansion head and extraction device | |
| CN210158684U (en) | Bone traction needle of adjustable antiskid line section | |
| CN208464782U (en) | Internal arteriovenous fistula hypodermic tunnel moulding device | |
| CN203790428U (en) | Space expander for endoscopic thyroidectomy | |
| CN209173193U (en) | A kind of brain surgery expander | |
| CN218651954U (en) | Puncture outfit for closed thoracic drainage | |
| CN204890132U (en) | Modified bladder fistulization needle external member | |
| CN205108498U (en) | Sheathed tube thorax closed drainage tube in removable | |
| CN205514734U (en) | Child's hernia pneumoperitoneum laparoscopic surgery's equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150826 Termination date: 20180427 |