CN101889880B - Visceral layer biopsy needle - Google Patents
Visceral layer biopsy needle Download PDFInfo
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- CN101889880B CN101889880B CN2010102147407A CN201010214740A CN101889880B CN 101889880 B CN101889880 B CN 101889880B CN 2010102147407 A CN2010102147407 A CN 2010102147407A CN 201010214740 A CN201010214740 A CN 201010214740A CN 101889880 B CN101889880 B CN 101889880B
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- inner sleeve
- sampling cutter
- visceral layer
- sampling
- needle
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Abstract
The invention provides a visceral layer biopsy needle, which comprises a needle tube and an inner sleeve internally sleeved in the needle tube. The inner surface of the needle tube and the outer surface of the inner sleeve are respectively provided with an internal thread and an external thread which are matched mutually. A piston and a piston rod connected with the piston are arranged in the inner sleeve. A through hole is formed in the wall of the inner sleeve along the axial direction. A sampling cutter control rod is arranged in the through hole. One end of the sampling cutter control rod, which is close to a needlepoint, is fixedly connected with a crescent sampling cutter. The crescent sampling cutter is arranged on the ring-shaped wall of one end of the inner sleeve, which is close to the needlepoint. The inner and outer sleeves are connected by the threads, so the visceral layer biopsy needle of the invention can make the inner and outer sleeves move relatively in the axial direction by selecting the inner and outer sleeves. Meanwhile, a piston mechanism is arranged in the inner sleeve, a negative pressure chamber can be formed and the visceral layer biopsy needle carries out adsorption on lesion tissues of the surface of a visceral layer by utilizing the principle of negative pressure traction and then cuts and separates the lesion tissues by using the sampling cutter so as to fulfill the aim of sampling.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of visceral layer biopsy needle.
Background technology
Thoracic cavity or seroperitoneum are clinically to see disease, regular incidence more, because of its cause of disease is various, is difficult to diagnosis fast and accurately, and then influences follow-up treatment, cause economic and healthy loss for patient and family members thereof, even cause delay, the deterioration of the state of an illness.At present routine clinical etiological diagnosis is mainly relied on through hydrothorax routine biochemistry, X line and CT, hydrothorax and phlegm cytology checking, fiberoptic bronchoscopy etc., can assist to make etiological diagnosis for most of patient, but still have the part patient not make a definite diagnosis, also often run into this type of patient clinically, be difficult to determine its cause of disease, according to the literature greatly about 10%～20%.
That biopsy of pleura has is easy, quick, the patient is easy to advantages such as acceptance, can effectively improve the diagnosis of the hydrothorax cause of disease.But existing biopsy of pleura also exists many shortcomings and limitation: during hydrothorax because the pleura pathological changes is not a uniformity; pathological changes is confined to a certain position of pleura or kitchen range distribution more; biopsy of pleura carries out under non-direct-view; blindness is big; clinical height suspects that pernicious hydrothorax is not to fill the air distribution on pleura, need sometimes different parts repeatedly biopsy just can obtain positive findings.The method that present stage obtains the peritoneal tissues specimen has: laparotomy ventrotomy detect with peritoneoscope under draw materials, for these two technology, the patient all will bear the risk of anesthesia and operation, unsuitable popularization and application; Ascites cells is learned and is checked that positive rate is lower; Traditional hook-type pin peritoneal biopsy, the tissue of drawing materials is few, and blindness is big, and diagnostic accuracy is not high, complication such as damages, hemorrhage easily yet.On the other hand, the peritoneopathy thickening is thin to differ, and what have is very thin, and puncture easily penetrates; The peritoneopathy displacement that has is in the internal organs deep, puncture difficult through.So existing peritoneal biopsy pin is difficult to guarantee accurately to be punctured to peritoneal tissues safely, can not guarantee that the peritoneal tissues specimen amount is more than enough, the internal organs around not being damaged to again are as intestinal tube or the like.Once the amount of drawing materials is less for traditional biopsy of pleura pin, has also limited accuracy, and false negative rate can reach more than 40%, sometimes even need repeatedly draw materials, causes health and economic loss to the patient.Especially for the biopsy sampling on visceral layer surface, therefore very big for the sampling difficulty on visceral layer surface owing to not piercing through visceral layer, even can't take a sample by the biopsy of pleura pin, limited determining of the cause of disease greatly. at all
At above-mentioned deficiency, need to explore a kind of new biopsy needle, it can not penetrated under the situation of visceral layer, taken a sample in the visceral layer surface, avoided visceral layer to be penetrated the danger that brings; Simultaneously can accurately determine lesion locations, sampling amount is more, the injury of having avoided the sampling of repeatedly puncturing to bring.
Summary of the invention
In view of this, the invention provides a kind of visceral layer biopsy needle, make the sample of tissue of finishing the visceral layer surface under its situation that can not penetrate visceral layer, guaranteed sampling process safety, can accurately find simultaneously the position of pathological tissues, increase the sampling amount of pathological tissues, the damage that avoiding repeatedly punctures brings.
The objective of the invention is to be achieved through the following technical solutions: a kind of visceral layer biopsy needle, comprise needle tubing and in be placed in inner sleeve in the needle tubing, the inner surface of needle tubing and the outer surface of inner sleeve are respectively arranged with female thread and the external screw thread that cooperatively interacts, be provided with piston and the piston rod that is connected piston in the inner sleeve, be provided with through hole in the tube wall of inner sleeve vertically, be provided with sampling cutter control stick in the through hole, sampling cutter control stick is fixedly connected with crescent sampling cutter near needle point one end, and crescent sampling cutter can be rotatably set in inner sleeve near on the annular tube wall of needle point one end.
Further, described sampling cutter control stick is provided with temperature sensor probe near needle point one end, and the other end is provided with temperature sensor;
Further, the tail end of inner sleeve also is provided with the fixed cap of piston rod and sampling cutter control stick.
The invention has the beneficial effects as follows: visceral layer biopsy needle of the present invention, since between the internal and external casing by being threaded, by selecting internal and external casing that internal and external casing is axially being relatively moved, be provided with piston mechanism in the inner sleeve simultaneously, can form negative pressure chamber, utilize the principle of negative pressure traction, the pathological tissues on visceral layer surface is adsorbed, carry out cutting and separating with the sampling cutter afterwards, thereby reach the purpose of sampling; Visceral layer biopsy needle of the present invention can be finished the sampling to the visceral layer surface texture under situation about visceral layer not being penetrated, guaranteed the safety of sampling process; Simultaneously, biopsy needle of the present invention is provided with temperature sensor, blood flow changes owing to can take place at the human lesion position, the temperature different with normal structure can appear, when the probe detection of temperature sensor behind pathological tissues, display by temperature sensor shows, and to show lesion locations such as accurately having found tumor or inflammation, can accurately take a sample by the sampler of this visceral layer biopsy needle; Owing to utilize inner sleeve directly to adsorb sampling, disposable sampling amount is big, is convenient to obtain better positive findings in addition, has avoided because of measuring less the damage that repeated puncture causes to the patient; Therefore biopsy needle of the present invention is easy to operate, and wound is little, draws materials more targetedly, improves diagnosis, has improved the safety of puncture sampling simultaneously greatly.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described;
Accompanying drawing 1 is a structure cutaway view of the present invention;
Accompanying drawing 2 is the take a sample outline drawing of cutter of the present invention;
Accompanying drawing 3 is the fixed cap structure chart of piston rod of the present invention and sampling cutter control stick.
The specific embodiment
Accompanying drawing 1 is a structural representation of the present invention, and accompanying drawing 2 is the take a sample outline drawing of cutter of the present invention, and accompanying drawing 3 is the fixed cap of piston rod of the present invention and sampling cutter control stick.As shown in Figure 1, visceral layer biopsy needle of the present invention, comprise needle tubing 1 and in be placed in inner sleeve 2 in the needle tubing 1, the outer surface of the inner surface of needle tubing 1 and inner sleeve 2 is respectively arranged with female thread and the external screw thread that cooperatively interacts, be provided with piston 3 and the piston rod 4 that is connected piston in the inner sleeve 2, be provided with through hole in the tube wall of inner sleeve 2 vertically, be provided with sampling cutter control stick 6 in the through hole, sampling cutter control stick is fixedly connected with crescent sampling cutter 5 near needle point one end, and crescent sampling cutter 5 can be rotatably set in inner sleeve near on the annular tube wall of needle point one end.
The using method of visceral layer biopsy needle of the present invention is: before the use, rotation inner sleeve 2, it is withdrawn in the needle tubing 1, behind needle tubing 1 insertion patient abdominal cavity or thoracic cavity, rotation inner sleeve 2, it is stretched out needle tubing 1, the front end face and the visceral layer of inner sleeve 2 are fitted, slowly spur piston rod 4 outward and drive moving of piston 3, make to produce negative pressure in the inner sleeve 2, the draw lower part that visceral layer is organized in negative pressure is inhaled in the negative pressure chamber, the cutter of rotation sampling afterwards control stick 6 drives the sampling cutter and rotates on the front end face of inner sleeve, make it isolate visceral layer tissue in the negative pressure chamber, visceral layer biopsy needle is taken out in the cutter of will taking a sample the at last back that resets, and can finish the biopsy of visceral layer tissue and take a sample.
In the present embodiment, described sampling cutter control stick 6 is provided with temperature sensor probe 7 near needle point one end, and the other end is provided with temperature sensor 8.Blood flow changes owing to can take place at the human lesion position, the temperature different with normal structure can appear, when the probe detection of temperature sensor behind pathological tissues, display by temperature sensor shows, to show lesion locations such as accurately having found tumor or inflammation, can help accurate sampling, the misery of avoiding blindly sampling to bring to patient.
In the present embodiment, the tail end of inner sleeve also is provided with the fixed cap 9 of piston rod 4 and sampling cutter control stick 6.This fixed cap can prevent the swing of piston rod 4 and sampling cutter control stick 6, has improved the steadiness of visceral layer biopsy needle, has guaranteed higher operating characteristics.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the power claimed range of the present invention.
Claims (3)
1. visceral layer biopsy needle, it is characterized in that: comprise needle tubing (1) and in be placed in inner sleeve (2) in the needle tubing (1), the outer surface of the inner surface of needle tubing (1) and inner sleeve (2) is respectively arranged with female thread and the external screw thread that cooperatively interacts, also be provided with piston (3) and the piston rod that is connected piston (4) in the inner sleeve (2), also be provided with through hole in the tube wall of inner sleeve (2) vertically, be provided with sampling cutter control stick (6) in the through hole, sampling cutter control stick is fixedly connected with crescent sampling cutter (5) near needle point one end, and crescent sampling cutter (5) can be rotatably set in inner sleeve near on the annular tube wall of needle point one end.
2. visceral layer biopsy needle according to claim 1 is characterized in that: described sampling cutter control stick (6) is provided with temperature sensor probe (7) near needle point one end, and the other end is provided with temperature sensor (8).
3. visceral layer biopsy needle according to claim 2 is characterized in that: the tail end of inner sleeve also is provided with the fixed cap (9) of piston rod (4) and sampling cutter control stick (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102147407A CN101889880B (en) | 2010-06-30 | 2010-06-30 | Visceral layer biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102147407A CN101889880B (en) | 2010-06-30 | 2010-06-30 | Visceral layer biopsy needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101889880A CN101889880A (en) | 2010-11-24 |
| CN101889880B true CN101889880B (en) | 2011-08-17 |
Family
ID=43099354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102147407A Expired - Fee Related CN101889880B (en) | 2010-06-30 | 2010-06-30 | Visceral layer biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101889880B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239276A (en) * | 2013-05-20 | 2013-08-14 | 凌立君 | Minimally invasive puncture positioning needle |
| DE112016000756T5 (en) * | 2015-03-26 | 2018-01-18 | Spiration, Inc. D.B.A. Olympus Respiratory America | Device for generating a local vacuum at a distal end of a sampling device |
| CN105078518A (en) * | 2015-07-06 | 2015-11-25 | 芜湖市第二人民医院 | Malignant tumor therapeutic apparatus for reducing glucose metabolism of tumor positions and method for applying malignant tumor therapeutic apparatus |
| CN110353854A (en) * | 2019-07-25 | 2019-10-22 | 江苏省人民医院（南京医科大学第一附属医院） | Animal cavity viscera puncture outfit operated by single person |
| CN110786957B (en) * | 2019-11-20 | 2021-11-16 | 首都医科大学 | Quantitative excision device for soft tissue in tiny specific area |
| CN112244946B (en) * | 2020-11-16 | 2021-08-03 | 徐树建 | A stripping off device for thyroid gland |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647429A2 (en) * | 1993-09-08 | 1995-04-12 | Citation Medical Corporation | Method and apparatus for obtaining a biopsy sample |
| CN2321399Y (en) * | 1998-05-05 | 1999-06-02 | 褚瑞海 | Quick liver puncture apparatus |
| CN2631511Y (en) * | 2002-08-09 | 2004-08-11 | 余俊豪 | Medical needle for extracting body fluid |
| RU2317785C1 (en) * | 2006-04-26 | 2008-02-27 | Валерий Валентинович Бекреев | Method for taking punctured biopsy sample of soft tissues from temporomandibular articulation under ultrasonic scanning control |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2256369B (en) * | 1991-06-04 | 1995-10-25 | Chiou Rei Kwen | Improved biopsy device |
| US7169114B2 (en) * | 2003-06-04 | 2007-01-30 | Krause William R | Biopsy and delivery device |
| US7517321B2 (en) * | 2005-01-31 | 2009-04-14 | C. R. Bard, Inc. | Quick cycle biopsy system |
-
2010
- 2010-06-30 CN CN2010102147407A patent/CN101889880B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0647429A2 (en) * | 1993-09-08 | 1995-04-12 | Citation Medical Corporation | Method and apparatus for obtaining a biopsy sample |
| CN2321399Y (en) * | 1998-05-05 | 1999-06-02 | 褚瑞海 | Quick liver puncture apparatus |
| CN2631511Y (en) * | 2002-08-09 | 2004-08-11 | 余俊豪 | Medical needle for extracting body fluid |
| RU2317785C1 (en) * | 2006-04-26 | 2008-02-27 | Валерий Валентинович Бекреев | Method for taking punctured biopsy sample of soft tissues from temporomandibular articulation under ultrasonic scanning control |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平5-200032A 1993.08.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101889880A (en) | 2010-11-24 |
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Granted publication date: 20110817 Termination date: 20130630 |