CN101264029A - Trocar puncturing depth controller - Google Patents
Trocar puncturing depth controller Download PDFInfo
- Publication number
- CN101264029A CN101264029A CNA2008100694661A CN200810069466A CN101264029A CN 101264029 A CN101264029 A CN 101264029A CN A2008100694661 A CNA2008100694661 A CN A2008100694661A CN 200810069466 A CN200810069466 A CN 200810069466A CN 101264029 A CN101264029 A CN 101264029A
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- trocar
- syringe
- needle
- needle guard
- threaded rod
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Abstract
The invention relates to a trocar puncturing depth controller, which is characterized in that: a trocar sleeve (2) is arranged in a trocar syringe (1); a mounting base hole is arranged on the front end of the trocar sleeve (2); the front end of the threaded rod of a trocar pusher (3) is connected with the trocar sleeve (2) after penetrating the via hole on the back end face of the trocar syringe (1); axial strip-shaped holes are arranged on the side wall of the trocar syringe (1); a scale ruler is arranged on the strip-shaped holes side; corresponding scale mark is arranged on the trocar sleeve (2); lock screws (6) are arranged on the trocar sleeve (2); the head of the lock screws (6) penetrates through the strip-shaped holes on the trocar syringe (1); stop nuts (7) are sleeved on the threaded rod of the trocar pusher (3); an opening is arranged on the front end of the trocar syringe (1) and is matched with a support cover (8); a via hole matched with the outer diameter of the trocar is arranged on the center of the support cover (8). The trocar puncturing depth controller can realize the regulation and accurate control of the trocar puncturing depth, avoids accidental injury to other organs and visceral in the body, eliminates trocar slipping and bending during an operation, and can prevent foreign body and bacteria from contaminating the trocar.
Description
Technical field
The invention belongs to technical field of medical instruments, specifically, relate to and be used for device that the paracentesis depth of the trocar is controlled.
Background technology
At present, puncture needle commonly used on the clinical medicine is called the trocar again, is made up of needle guard and nook closing member, is used for thrusting body cavity extraction secretions and does chemical examination, does contrast examination to body cavity injecting gas or contrast agent, or inject medicine in body cavity.During use normally the doctor rear end that holds the trocar carry out puncture procedure, the trocar enters the speed and the degree of depth of body cavity and controls with doctor's experience entirely.If paracentesis depth is not controlled well, easily other organ and internal organs are caused accidental injury; In addition,, occur the trocar in the operation easily and skid off phenomenon with bending, normally the carrying out of influence operation because nook closing member can freely slide backward in needle guard.
Summary of the invention
The problem to be solved in the present invention provides a kind of trocar puncturing depth controller, is used and can accurately controls paracentesis depth with the trocar.
For solving the problems of the technologies described above, the invention provides a kind of trocar puncturing depth controller, include syringe, needle guard and needle propeller, needle guard is positioned at syringe and can endwisely slips, and the front end of needle guard is provided with trocar mount pad hole; Needle propeller is made of threaded rod and the disc handle that is fixed on the threaded rod rearward end, the threaded rod front end of needle propeller passes on the back end of syringe face and is connected with needle guard behind the via hole, barrel sidewall is provided with axial bar hole, and a side of this bar hole is provided with graduated scale, and needle guard is provided with corresponding graduation mark.
During use, the head of the trocar is fixed in the mount pad hole of needle guard, promote needle propeller, just can judge the degree of depth of puncture, thereby realize accurate control the trocar puncturing degree of depth according to the displacement that the graduation mark on the needle guard takes place with respect to the graduated scale on the syringe.
Above-mentioned needle guard is provided with and is used for the trocar is carried out fixed lock-screw, and the head of lock-screw stretches out the bar hole on the syringe.Lock-screw is not only in order to the reinforcement effect that has been connected between the trocar and the needle guard, and when puncture procedure, the relative displacement of lock-screw and syringe high scale scale can be used to tentatively judge whether puncture needle arrives set depth.
Be with stop nut on the threaded rod of above-mentioned needle propeller, regulate the depth capacity that the position of stop nut on threaded rod just can limit puncture, when trocar puncturing arrived depth capacity, stop nut just was resisted against on the rear end face of syringe.
The front opening of above-mentioned syringe also is fitted with supporting cover, and the center of supporting cover has the via hole that matches with trocar external diameter.The mounting or dismounting operation that supporting cover can carry out the needle guard and the trocar is opened in the effect that center via hole on the supporting cover plays support, stablizes the trocar.
The present invention and the trocar are used, can realize the trocar puncturing degree of depth is regulated and accurately control, avoided other organ and internal organs in the body are caused accidental injury, phenomenon with bending can not appear skidding off in operation middle sleeve pin, and make puncture procedure easy, laborsaving, can prevent that the trocar is subjected to foreign body and germ contamination, ensured operation normally, carry out fast.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
As Fig. 1, Fig. 2 and shown in Figure 3, trocar puncturing depth controller of the present invention is made up of syringe 1, needle guard 2, needle propeller 3, lock-screw 6, stop nut 7 and supporting cover 8.Needle guard 2 is positioned at syringe 1, can freely endwisely slip in syringe 1 as piston, and the front end of needle guard 2 is provided with trocar mount pad hole 2a, and the shape of mount pad hole 2a and the trocar 9 nose shapes are complementary.Needle propeller 3 is made of threaded rod and the disc handle 3a that is fixed on the threaded rod rearward end, is with stop nut 7 on the threaded rod of needle propeller 3, and the threaded rod front end of needle propeller 3 passes on syringe 1 rear end face and is connected with needle guard 2 behind the via hole.Syringe 1 sidewall is provided with axial bar hole 1a, and the side of this bar hole 1a is provided with graduated scale 4, and needle guard 2 is provided with corresponding graduation mark 5.Needle guard 2 is provided with and is used for the trocar 9 is carried out fixed lock-screw 6, and the head of lock-screw 6 stretches out the bar hole 1a on the syringe 1.
Can find out from Fig. 1, Fig. 3: the rear end all-in-one-piece of syringe 1 has extended radially out two symmetric journal stirrup 1b, during puncture procedure, catch on two journal stirrup 1b with forefinger and middle finger, big mother refers to or slaps finish puncture procedure with regard to an available hands on the handle 3a that root is pressed in needle propeller 3.
Can further find out from Fig. 2: the front opening of syringe 1 also is fitted with supporting cover 8, and the center of supporting cover 8 has the via hole 8a that matches with trocar external diameter.The mounting or dismounting operation that supporting cover 8 can carry out the needle guard 2 and the trocar 9 is opened in the effect that center via hole 8a on the supporting cover 8 plays support, stablizes the trocar 9.
The present invention is that the trocar puncturing operation provides a kind of simple and easy to do safety guarantee with the special structure design, can not controlling depth and the accidental injury risk that causes thereby stopped in the puncture, get rid of operation middle sleeve pin and easily skidded off the trouble of being brought with bending, can prevent that the trocar is subjected to foreign body and germ contamination, adopt needle propeller can realize that puncture procedure is more laborsaving, operation is easier.Except that supporting cover 8 adopted the lucite making, remaining parts all adopted the stainless steel material Precision Machining to make.
Operation principle: during use, the close handle 3a that stop nut 7 is screwed into needle propeller 3 holds, and driving handle 3a tries one's best near the leading section of syringes 1 needle guard 2; The head of sleeve pipe puncture needle 9 is put into the mount pad hole 2a of needle guard 2, screw lock-screw 6 after confirming to put in place; Supporting cover 8 is installed on needle tubing 1 leading section, and makes the trocar 9 pass the center via hole 8a of supporting cover 8; Regulate the position of stop nut 7 on needle propeller 3 threaded rods and locking according to the maximum paracentesis depth of setting, depth value is accurately controlled by the graduation mark 5 on graduated scale on the syringe 14 and the needle guard 2; Catch on two journal stirrup 1b of syringe 1 with forefinger and middle finger, big mother refers to or slaps on the handle 3a that root is pressed in needle propeller 3, the tip alignment site of puncture of the trocar 9, slowly be pressed into needle propeller 3, observe the position of lock-screw 6 on graduated scale 4 simultaneously, just reached the paracentesis depth of setting after handle 3a is limited, at this moment stop nut 7 is resisted against on syringe 1 rear end face; Unscrew lock-screw 6, take off supporting cover 8, make the trocar 9 throw off the back and just can take a sample or implant operation with needle guard 2.
Claims (5)
1, a kind of trocar puncturing depth controller is characterized in that comprising syringe (1), needle guard (2) and needle propeller (3), and needle guard (2) is positioned at syringe (1) and can endwisely slips, and the front end of needle guard (2) is provided with trocar mount pad hole (2a); Needle propeller (3) is made of threaded rod and the disc handle (3a) that is fixed on the threaded rod rearward end, the threaded rod front end of needle propeller (3) passes on syringe (1) rear end face and is connected with needle guard (2) behind the via hole, syringe (1) sidewall is provided with axial bar hole (1a), one side of this bar hole (1a) is provided with graduated scale (4), and needle guard (2) is provided with corresponding graduation mark (5).
2, a kind of trocar puncturing depth controller according to claim 1 is characterized in that described needle guard (2) is provided with to be used for the trocar is carried out fixed lock-screw (6) that the head of lock-screw (6) stretches out the bar hole (1a) on the syringe (1).
3, a kind of trocar puncturing depth controller according to claim 1 and 2 is characterized in that being with stop nut (7) on the threaded rod of described needle propeller (3).
4, a kind of trocar puncturing depth controller according to claim 1 is characterized in that the rear end all-in-one-piece of described syringe (1) has extended radially out two symmetric journal stirrups (1b).
5, a kind of trocar puncturing depth controller according to claim 1 is characterized in that the front opening of described syringe (1) and is fitted with supporting cover (8) that the center of supporting cover (8) has the via hole (8a) that matches with trocar external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100694661A CN100560034C (en) | 2008-03-13 | 2008-03-13 | A kind of trocar puncturing depth controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100694661A CN100560034C (en) | 2008-03-13 | 2008-03-13 | A kind of trocar puncturing depth controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101264029A true CN101264029A (en) | 2008-09-17 |
| CN100560034C CN100560034C (en) | 2009-11-18 |
Family
ID=39986884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100694661A Expired - Fee Related CN100560034C (en) | 2008-03-13 | 2008-03-13 | A kind of trocar puncturing depth controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100560034C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984929A (en) * | 2010-10-29 | 2011-03-16 | 刘苗生 | Step control device for puncture outfit |
| CN105055013A (en) * | 2015-08-28 | 2015-11-18 | 四川大学华西医院 | Adjustable depth-limiting striking instrument for spine |
| CN108325026A (en) * | 2018-03-21 | 2018-07-27 | 中国人民解放军第四军医大学 | Anesthesia syringe with injection needle defencive function |
| CN108498141A (en) * | 2017-12-11 | 2018-09-07 | 张雪松 | A kind of Cardiological sting device with positioning convex platform |
| CN108814687A (en) * | 2018-04-27 | 2018-11-16 | 河南中医药大学 | A kind of pathological examination cell puncture needle |
| CN109043645A (en) * | 2018-09-27 | 2018-12-21 | 龙岩烟草工业有限责任公司 | The spacing calibrating installation and position adjusting method of cigarette machine drum rubber ring |
| CN109350199A (en) * | 2018-12-18 | 2019-02-19 | 刘海 | A kind of binary channels pneumothorax puncture needle |
| CN110856660A (en) * | 2018-08-23 | 2020-03-03 | 武汉联影智融医疗科技有限公司 | Surgical robot and puncture mechanism thereof |
| CN111248906A (en) * | 2014-03-12 | 2020-06-09 | 尼尔森（美国）有限公司 | Method and apparatus for collecting and analyzing electroencephalographic data |
| CN113952009A (en) * | 2021-12-23 | 2022-01-21 | 真健康（北京）医疗科技有限公司 | Targeted drug delivery needle clamping navigation device and targeted drug delivery treatment system |
-
2008
- 2008-03-13 CN CNB2008100694661A patent/CN100560034C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984929A (en) * | 2010-10-29 | 2011-03-16 | 刘苗生 | Step control device for puncture outfit |
| CN111248906A (en) * | 2014-03-12 | 2020-06-09 | 尼尔森（美国）有限公司 | Method and apparatus for collecting and analyzing electroencephalographic data |
| CN111248906B (en) * | 2014-03-12 | 2023-10-27 | 尼尔森用户有限公司 | Method and device for acquiring and analyzing electroencephalogram data |
| CN105055013A (en) * | 2015-08-28 | 2015-11-18 | 四川大学华西医院 | Adjustable depth-limiting striking instrument for spine |
| CN105055013B (en) * | 2015-08-28 | 2017-04-26 | 四川大学华西医院 | Adjustable depth-limiting striking instrument for spine |
| CN108498141A (en) * | 2017-12-11 | 2018-09-07 | 张雪松 | A kind of Cardiological sting device with positioning convex platform |
| CN108325026A (en) * | 2018-03-21 | 2018-07-27 | 中国人民解放军第四军医大学 | Anesthesia syringe with injection needle defencive function |
| CN108325026B (en) * | 2018-03-21 | 2021-04-02 | 中国人民解放军第四军医大学 | Anesthetic syringe with injection needle protection function |
| CN108814687B (en) * | 2018-04-27 | 2021-03-09 | 河南中医药大学 | Cell puncture needle for pathology examination |
| CN108814687A (en) * | 2018-04-27 | 2018-11-16 | 河南中医药大学 | A kind of pathological examination cell puncture needle |
| CN110856660A (en) * | 2018-08-23 | 2020-03-03 | 武汉联影智融医疗科技有限公司 | Surgical robot and puncture mechanism thereof |
| CN109043645A (en) * | 2018-09-27 | 2018-12-21 | 龙岩烟草工业有限责任公司 | The spacing calibrating installation and position adjusting method of cigarette machine drum rubber ring |
| CN109043645B (en) * | 2018-09-27 | 2023-12-22 | 龙岩烟草工业有限责任公司 | Device for calibrating distance between rubber rings of drum wheels of cigarette making machine and position adjusting method |
| CN109350199A (en) * | 2018-12-18 | 2019-02-19 | 刘海 | A kind of binary channels pneumothorax puncture needle |
| CN113952009A (en) * | 2021-12-23 | 2022-01-21 | 真健康（北京）医疗科技有限公司 | Targeted drug delivery needle clamping navigation device and targeted drug delivery treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100560034C (en) | 2009-11-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20120313 |