CN201595907U - Puncture needle with sheath capable of being torn - Google Patents
Puncture needle with sheath capable of being torn Download PDFInfo
- Publication number
- CN201595907U CN201595907U CN2009203507686U CN200920350768U CN201595907U CN 201595907 U CN201595907 U CN 201595907U CN 2009203507686 U CN2009203507686 U CN 2009203507686U CN 200920350768 U CN200920350768 U CN 200920350768U CN 201595907 U CN201595907 U CN 201595907U
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- China
- Prior art keywords
- needle
- sheath
- sheath pipe
- puncture needle
- needle tubing
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- Expired - Fee Related
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Abstract
A puncture needle with a sheath capable of being torn comprises a puncture needle and a sheath tube, wherein, the puncture needle comprises a hollow needle tube and a needle bed fixedly connected to the rear part of the needle tube; a puncture needle point is arranged at the front end of the needle tube; the sheath capable of being torn comprises a hollow sheath tube and handles fixedly connected with two sides at the rear end of the sheath tube symmetrically; two tearing grooves are axially formed on the circumferential surface of the sheath tube; the sheath tube is sleeved on the needle tube; a cog is arranged at the front end of the needle bed; a clamping groove is formed on each handle; and the clamping grooves can accommodate the cog of the needle bed. The sheath tube can be punctured into a human body together with the puncture needle; when the puncture needle is withdrawn, interventional equipment can be sent to the human body through the sheath tube; and the sheath tube can be withdrawn from the human body directly after being torn conveniently. By adopting the puncture needle with the sheath capable of being torn, the operating procedure of interventional therapy can be simplified, the therapy time and the examine time can be shortened, the secondary harm on a patient can be avoided, and the pain of the patient can be reduced, so that the popularization and the application of interventional therapy are more convenient.
Description
Technical field
This utility model relates to a kind of puncture needle, particularly a kind of tearable sheath puncture needle.
Background technology
The interventional therapy of medical domain claims again " operation that need not operate on ", is the emerging Therapeutic Method between surgery, medical treatment, through 30 years of development, has been called three big pillar subjects of therapeutic treatment now with surgery, internal medicine.The method of interventional therapy is under the situation that does not expose the inside of human body tissue, make the minim channel of several millimeters of diameters through skin, directly or under the guiding of ray, magnetic resonance or ultra sonic imaging, make in other tissue of original tube chambers of human body such as getting involved the equipment intravasation or human body, disease is treated or the Therapeutic Method of the wound minimum checked, be characterized in that easy, safe, effective, Wicresoft and complication are few.Use conventional interventional therapy equipment, utilizing puncture needle after the skin puncture, need to send into seal wire from the puncture needle afterbody, extract puncture needle then, again under the guiding of seal wire, insert dilator and sheath pipe through the seal wire afterbody, withdraw from seal wire and dilator subsequently, could send into the intervention equipment of various treatments and inspection usefulness by the sheath pipe.Original interventional therapy process, because the most advanced and sophisticated head of dilator can not directly puncture, must use lancet puncture in advance, after inserting seal wire and extracting puncture needle, could put into dilator and sheath pipe again, therefore complicated operation, time-consuming can cause secondary damage to the patient, has increased patient's misery simultaneously.
The utility model content
In order to simplify the operation sequence of interventional therapy, avoid the patient is caused secondary damage, reduce patient's misery, the utility model proposes a kind of tearable sheath puncture needle, the technical scheme that is adopted is: tearable sheath puncture needle, comprise puncture needle and sheath pipe, puncture needle comprises hollow needle tubing and is fixedly connected on the needle stand at needle tubing rear portion, the front end of needle tubing is provided with needle tip, tearable sheath comprises that hollow sheath pipe fixedlys connected the handle of setting with sheath pipe rear end lateral symmetry, the outer surface of sheath pipe is provided with 2 tearing grooves vertically, in the middle of tearing groove was positioned at the slit of two side handles along the outer round surface symmetry of sheath pipe respectively, tearing groove ran through the total length of sheath pipe, and the length of needle tubing is greater than the length of sheath pipe, the external diameter of needle tubing is less than the internal diameter of sheath pipe, and the sheath pipe box is loaded on the outside of needle tubing.
The front end of needle stand is provided with fin, and the rear end of two side handles respectively is provided with opposed trip, is provided with draw-in groove between 2 trips, and draw-in groove can contain the fin of needle stand.
Fin is in the radial direction of the needle tubing axis symmetry about needle tubing, and fin differs 90 degree in the radial direction of needle tubing and has minimum widith and Breadth Maximum, and minimum widith is less than the A/F of draw-in groove, and Breadth Maximum can be contained by described draw-in groove.
The front end of sheath pipe is towards the direction of termination, and external diameter reduces gradually, and the front end of sheath pipe and the needle tip of needle tubing are formed smooth, successive taper.
The distance at the rear portion of the front end of sheath pipe and needle tubing needle tip is not more than 1 millimeter.
The outer surface of needle tubing and needle stand connecting portion is provided with concaveconvex structure.
The technique effect that tearable sheath puncture needle of the present utility model adopts technique scheme to obtain is: the sheath pipe box of tearable sheath puncture needle is loaded on the outside of needle tubing, the outer surface of sheath pipe is provided with 2 tearing grooves, the sheath pipe can puncture with puncture needle and enter human body, after extracting puncture needle, just can send into the intervention equipment of various treatments and inspection usefulness by the sheath pipe, because the outer surface of sheath pipe is provided with tearing groove, directly withdraw from human body after can easily the sheath pipe being torn, just can not withdraw from and will the sheath pipe do not slide past the outer length that gets involved equipment, simplified the operation sequence of interventional therapy, avoid patient's secondary damage, reduced patient's misery.
The front end of needle stand is provided with fin, and the rear end of two side handles respectively is provided with opposed trip, is provided with draw-in groove between 2 trips, and draw-in groove can contain the fin of needle stand, and puncture needle and sheath pipe are connected together under normal conditions, conveniently hands, picks and places and transport, takes care of.
Fin is in the radial direction of the needle tubing axis symmetry about needle tubing, fin differs 90 degree in the radial direction of needle tubing and has minimum widith and Breadth Maximum, minimum widith is less than the A/F of described draw-in groove, Breadth Maximum can be contained by described draw-in groove, can align at the minimum widith of fin under the situation of opening of draw-in groove, after puncture needle is inserted the sheath pipe and it is put in place, revolve relative with the sheath pipe of puncture needle be turn 90 degrees, the Breadth Maximum of fin is contained by draw-in groove, make puncture needle and sheath pipe realize clamping.
The front end of sheath pipe is towards the direction of termination, and external diameter reduces gradually, and the front end of sheath pipe and the needle tip of needle tubing are formed smooth, successive taper, is convenient to puncture needle and thrusts human body with the sheath pipe, and reduce the damage that human body is caused.
The distance at the rear portion of the front end of sheath pipe and needle tubing needle tip is not more than 1 millimeter, can reduce the length of puncture needle as far as possible, increases the length that the sheath pipe enters human body, and handled easily guarantees the puncture effect, and reduces cost.
The outer surface of needle tubing and needle stand connecting portion is provided with concaveconvex structure, can significantly increase the bonding strength of needle tubing and needle stand, prevents that needle tubing and needle stand break away from, and avoid taking place malpractice.
Adopt tearable sheath puncture needle of the present utility model, can simplify the operation sequence of interventional therapy, shorten treatment and review time, avoid patient's secondary damage, reduce patient's misery, help applying of interventional therapy.
Description of drawings
Accompanying drawing 1 is the structural representation of the puncture needle of the tearable sheath puncture needle of this utility model.
Accompanying drawing 2 is structural representations of the sheath pipe of the tearable sheath puncture needle of this utility model.
Accompanying drawing 3 is the structural representations after the puncture needle of the tearable sheath puncture needle of this utility model and sheath pipe clamp connect.
Sign implication in the accompanying drawing is as follows:
The 1-puncture needle, 11-needle tubing, 111-needle tip, 12-needle stand, 121-fin, 1211-fin Breadth Maximum surface, 1212-fin minimum widith surface, the tearable sheath of 2-, 21-sheath pipe, 211-tearing groove, the front end of 212-sheath pipe, 22-handle, 221-trip, 222-draw-in groove.
The specific embodiment
Tearable sheath puncture needle of the present utility model comprises puncture needle and sheath pipe.The structure of puncture needle as shown in Figure 1, puncture needle 1 comprises hollow needle tubing 11 and is fixedly connected on the needle stand 12 at needle tubing 11 rear portions, the front end of needle tubing 11 is provided with needle tip 111, and needle tubing generally uses the medical stainless steel manufacturing, and needle stand generally uses the manufacturing of medical engineering plastics.The structure of tearable sheath as shown in Figure 2, tearable sheath 2 comprises that hollow sheath pipe 21 fixedlys connected the handle 22 of setting with sheath pipe rear end lateral symmetry, the outer surface of sheath pipe 21 is provided with 2 tearing grooves 211 vertically, in the middle of tearing groove 211 is positioned at the slit of two side handles 22 along the outer round surface symmetry of sheath pipe 21 respectively, tearing groove 211 runs through the total length of sheath pipe 21, the 21 general use medical polyethylene manufacturings of sheath pipe, also can use medical plastic manufacturings such as polyester, polyamide, handle 22 general use medical engineering plastics are made.The length of needle tubing 11 is greater than the length of sheath pipe 21, and the external diameter of needle tubing 11 is less than the internal diameter of sheath pipe 21, and sheath pipe 21 is set in the outside of needle tubing 11.
The rear end that the front end of needle stand 12 is provided with fin 121, two side handles 22 respectively is provided with 221 of 221,2 trips of opposed trip and is provided with draw-in groove 222, and draw-in groove 222 can contain the fin 121 of needle stand 12.
The front end of sheath pipe 1 is towards the direction of termination, and external diameter reduces gradually, and the front end 212 of sheath pipe 21 is formed smooth, successive taper with the needle tip of needle tubing 11 111.
The front end 212 of sheath pipe and the distance at the rear portion of needle tubing needle tip 111 are not more than 1 millimeter.
The outer surface of needle tubing 11 and needle stand 12 connecting portions is provided with concaveconvex structure.
The surface of needle tubing 11 and sheath pipe 21 requires smooth, no burr.
Tearable sheath puncture needle of the present utility model is not subjected to the restriction of above-mentioned embodiment, and every structure of the present utility model and mode utilized is through conversion and the formed technical scheme of replacement, all in protection domain of the present utility model.
Claims (6)
1. tearable sheath puncture needle, comprise puncture needle and sheath pipe, it is characterized in that: described puncture needle comprises hollow needle tubing and is fixedly connected on the needle stand at needle tubing rear portion, the front end of described needle tubing is provided with needle tip, described tearable sheath comprises that hollow sheath pipe fixedlys connected the handle of setting with sheath pipe rear end lateral symmetry, the outer surface of described sheath pipe is provided with 2 tearing grooves vertically, in the middle of described tearing groove is positioned at the slit of described two side handles along the outer round surface symmetry of sheath pipe respectively, described tearing groove runs through the total length of sheath pipe, the length of described needle tubing is greater than the length of described sheath pipe, the external diameter of described needle tubing is less than the internal diameter of described sheath pipe, and described sheath pipe box is loaded on the outside of needle tubing.
2. tearable sheath puncture needle according to claim 1, it is characterized in that: the front end of described needle stand is provided with fin, and the rear end of described two side handles respectively is provided with opposed trip, is provided with draw-in groove between 2 trips, and described draw-in groove can contain the fin of described needle stand.
3. tearable sheath puncture needle according to claim 2, it is characterized in that: described fin is in the radial direction of the needle tubing axis symmetry about needle tubing, described fin differs 90 degree in the radial direction of needle tubing and has minimum widith and Breadth Maximum, described minimum widith is less than the A/F of described draw-in groove, and described Breadth Maximum can be contained by described draw-in groove.
4. tearable sheath puncture needle according to claim 1, it is characterized in that: the front end of described sheath pipe is towards the direction of termination, and external diameter reduces gradually, and the front end of described sheath pipe and the needle tip of needle tubing are formed smooth, successive taper.
5. tearable sheath puncture needle according to claim 1 is characterized in that: the distance at the rear portion of the front end of described sheath pipe and needle tubing needle tip is not more than 1 millimeter.
6. tearable sheath puncture needle according to claim 1 is characterized in that: the outer surface of described needle tubing and described needle stand connecting portion is provided with concaveconvex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203507686U CN201595907U (en) | 2009-12-30 | 2009-12-30 | Puncture needle with sheath capable of being torn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203507686U CN201595907U (en) | 2009-12-30 | 2009-12-30 | Puncture needle with sheath capable of being torn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201595907U true CN201595907U (en) | 2010-10-06 |
Family
ID=42806949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203507686U Expired - Fee Related CN201595907U (en) | 2009-12-30 | 2009-12-30 | Puncture needle with sheath capable of being torn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201595907U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895730A (en) * | 2012-11-07 | 2013-01-30 | 刘华清 | Disposable central vein puncture kit |
| CN105011988A (en) * | 2015-07-13 | 2015-11-04 | 陈镇洲 | Split abdominal cavity puncture device for ventricle-peritoneal shunting operation |
| CN105212994A (en) * | 2015-09-24 | 2016-01-06 | 邵志辉 | Puncture needle |
| CN107184254A (en) * | 2017-06-26 | 2017-09-22 | 苏州科技城医院 | Epidural puncture device |
| CN107961063A (en) * | 2017-11-21 | 2018-04-27 | 王诗庆 | Central venous puncture trocar |
| CN111084654A (en) * | 2019-12-31 | 2020-05-01 | 山东威高集团医用高分子制品股份有限公司 | Safety blood vessel puncture sheath |
| CN111603662A (en) * | 2020-06-01 | 2020-09-01 | 河南曙光健士医疗器械集团股份有限公司 | Interventional catheter assembly |
| CN112773317A (en) * | 2020-12-25 | 2021-05-11 | 深圳市人民医院 | Soft hysteroscope guiding device |
-
2009
- 2009-12-30 CN CN2009203507686U patent/CN201595907U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895730A (en) * | 2012-11-07 | 2013-01-30 | 刘华清 | Disposable central vein puncture kit |
| CN105011988A (en) * | 2015-07-13 | 2015-11-04 | 陈镇洲 | Split abdominal cavity puncture device for ventricle-peritoneal shunting operation |
| CN105212994A (en) * | 2015-09-24 | 2016-01-06 | 邵志辉 | Puncture needle |
| CN107184254A (en) * | 2017-06-26 | 2017-09-22 | 苏州科技城医院 | Epidural puncture device |
| CN107961063A (en) * | 2017-11-21 | 2018-04-27 | 王诗庆 | Central venous puncture trocar |
| CN111084654A (en) * | 2019-12-31 | 2020-05-01 | 山东威高集团医用高分子制品股份有限公司 | Safety blood vessel puncture sheath |
| CN111603662A (en) * | 2020-06-01 | 2020-09-01 | 河南曙光健士医疗器械集团股份有限公司 | Interventional catheter assembly |
| CN112773317A (en) * | 2020-12-25 | 2021-05-11 | 深圳市人民医院 | Soft hysteroscope guiding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101006 Termination date: 20131230 |