CN204839583U - Biopsy pjncture needle - Google Patents
Biopsy pjncture needle Download PDFInfo
- Publication number
- CN204839583U CN204839583U CN201520393190.8U CN201520393190U CN204839583U CN 204839583 U CN204839583 U CN 204839583U CN 201520393190 U CN201520393190 U CN 201520393190U CN 204839583 U CN204839583 U CN 204839583U
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- China
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- closing member
- nook closing
- needle guard
- needle
- sampling portion
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Abstract
The utility model provides a biopsy pjncture needle, including needle cover and nook closing member, the head end of nook closing member is equipped with piercing part, and its piercing part rear end has the sample portion of recess form, the nook closing member outside is located to the needle ways, the nook closing member is located the primary importance or the second place for the needle cover, when when the nook closing member is located the primary importance, the cladding is overlapped by the needle by sample portion, works as when the nook closing member is located the second place for the needle cover, sample portion exposes outside the needle cover, be equipped with a slot in the nook closing member sample portion, the both ends of slot communicate respectively the both ends cell wall of sample portion. The utility model provides a biopsy pjncture needle, the intensity of nook closing member is enough strong, also can guarantee the difficult fracture of nook closing member or bent partially when the tissue to harder is taken a sample or is taken a sample many times to can once take out the sample tissue of great volume.
Description
Technical field
This utility model relates to a kind of biopsy needle.
Background technology
Along with improving constantly of people's living standard, each tumor also more and more betides human body.In clinic diagnosis process, when the swollen properties of some tissues is failed to understand, many application Biopsies get inspection technology, carry out pathology qualitative by obtaining suspect tissue to it, and then give further treatment, therefore Biopsy becomes some tissue tumor best approach qualitatively.
To get inspection be very important a kind of invasive Clinics in present clinical diagnosis and treatment process in puncture, although can bring wound to patient, it is unquestionable to the importance of clinic diagnosis to get inspection, therefore at utmost to alleviate the injury of patient be that one necessarily requires.
In clinic diagnosis process, when can not determine its pathologic feature for suspicious lesions, normal employing medical image biopsy needle guide (ultrasonic, x-ray or the CT) suspicious lesions that punctures tissue, cuts a small amount of pathological tissues, determines lesion nature by pathological observation.
The confused class of present clinical biopsy needle is assorted many, but mostly all exists and get inspection cell body and amass little, and one-time puncture is got and examined the low shortcoming of success rate.Puncture needle comprises nook closing member, needle guard, also needs to be equipped with special puncture rifle simultaneously.
Get inspection process as follows:
1. puncture needle core, needle guard are correctly arranged on puncture rifle and puncture rifle is set in state to be excited.
2. guide location by medical image, determine that puncture needle enters suspicious lesions and organizes target area.
3. the target that punctures excites puncture rifle after determining.First puncture needle core enters pathological tissues, and parts of lesions tissue is in be got in inspection groove, and Puncture needle sleeve enters subsequently.In the process, the pathological tissues got in inspection groove cuts and overlaps to be stored in and gets in inspection groove by needle guard.
4. exit puncture needle, and get the pathological tissues in inspection groove.
Current clinical conventional biopsy needle, get inspection groove due to puncture needle and get inspection small volume, institute's label taking is originally organized less undesirable, one-time success rate is lower, pathological observation requirement is met for making to get inspection tissue, specimen can only be improved get inspection qualification rate to increase puncture time, thus virtually increase misery to patient, also add physical trauma and financial burden to patient; And puncture needle is getting inspection groove place, and to obtain stress less, and intensity is lower, the serious consequence that nook closing member is partially bent, even fracture repeatedly during puncture, may be caused.
Utility model content
Technical problem underlying to be solved in the utility model is to provide a kind of biopsy needle, the intensity of nook closing member is enough strong, also nook closing member not easy fracture or partially bent can be ensured when sampling harder tissue or repeatedly sample, and relatively large tissue can be once taken out.
In order to solve above-mentioned technical problem, this utility model provides a kind of biopsy needle, comprises needle guard and nook closing member; The head end of described nook closing member is provided with puncture portion, and rear end, described puncture portion has the sampling portion of a groove-like; Described needle guard is sheathed on nook closing member outside; Described nook closing member is positioned at primary importance or the second position relative to needle guard; When described nook closing member is positioned at primary importance, described sampling portion is coated by needle guard, and when described nook closing member is positioned at the second position relative to needle guard, described sampling portion is exposed to outside needle guard;
Be provided with a groove in described sampling portion, the two ends of described groove are communicated with the two ends cell wall in described sampling portion respectively.
In a preferred embodiment: the head end of described needle guard has cutting part; When described nook closing member moves to primary importance relative to needle guard by the second position, the tissue in sampling portion is cut off by described cutting part and stays in sampling portion.
In a preferred embodiment: the tail end of described needle guard and nook closing member is respectively equipped with clamping part; By described clamping part and puncture rifle clamping keep elasticity locking condition.
In a preferred embodiment: described puncture rifle is provided with a trigger, when pressing described trigger, described nook closing member removes elasticity locking, moves forward to stop motion after the second position by primary importance.
In a preferred embodiment: the tail end of the clamping part of described needle guard is provided with limiting section, when described nook closing member moves to the second position relative to needle guard, the clamping part head end contact of described limiting section and nook closing member is spacing, the power produced makes needle guard remove the backward front motion of elasticity locking, makes nook closing member get back to primary importance.
In a preferred embodiment: described limiting section is spacing hole; The clamping part head end of described nook closing member is provided with the protuberance coordinated with described spacing hole.
Compared to prior art, the technical solution of the utility model possesses following beneficial effect:
This utility model provides a kind of biopsy needle, specially groove is set in sampling portion, first under can alleviating nook closing member weight prerequisite, increase the structural strength of sampling portion nook closing member, avoid producing song partially when needle point is stressed in sampling cutting process, depart from predetermined sampling target spot, accidentally injure contiguous important organ (as heart, nerve, trunk etc.), particularly partially bent to also ensureing that nook closing member not easily produces when organizing the fine and close focus of quality to sample or repeatedly sample, improve operation safety, reduce risk and postoperative complication.
Sampling portion arranges groove, directly can increase each puncture action sampling tissue volume, the sampling number of times for same focus can be reduced, due to operation risk and complication generation whether, the order of severity is directly relevant with sampling number of times, increase single sampling tissue volume, can obviously reduce sampling number of times, thus improve the safety of sampling operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of nook closing member in this utility model preferred embodiment;
The sampling portion enlarged drawing that Fig. 2 is nook closing member in this utility model preferred embodiment;
Fig. 3 is the structural representation of needle guard in this utility model preferred embodiment;
Fig. 4 is the schematic diagram that in this utility model preferred embodiment, nook closing member is positioned at primary importance;
Fig. 5 is the schematic diagram that in this utility model preferred embodiment, nook closing member is positioned at the second position.
Detailed description of the invention
Hereafter the present invention will be further described in conjunction with the accompanying drawings and embodiments.
With reference to figure 1-5, a kind of biopsy needle, comprises needle guard 1 and nook closing member 2; The head end of described nook closing member 2 is provided with puncture portion 21, and its rear end, puncture portion 21 has the sampling portion 22 of a groove-like; It is outside that described needle guard 1 is sheathed on nook closing member 2; Described nook closing member 2 is positioned at primary importance or the second position relative to needle guard 1; When described nook closing member 2 is positioned at primary importance, described sampling portion 22 is coated by needle guard 1, and when described nook closing member 2 is positioned at the second position relative to needle guard 1, described sampling portion 22 is exposed to outside needle guard 1;
Be provided with a groove 221 in described sampling portion 22, the two ends of described groove 221 are communicated with the two ends cell wall 222 in described sampling portion 22 respectively.Which adds the stress in sampling portion 22, add intensity, to harder sample of tissue or when repeatedly sampling, also not easily there is partially bent, fracture in nook closing member 2 in the position in sampling portion 22.
The head end of described needle guard 1 has cutting part 11; The tail end of described needle guard 1 and nook closing member 2 is respectively equipped with clamping part 12,23; By described clamping part 12,23 and puncture rifle clamping be in elasticity locking condition.Described puncture rifle is provided with a trigger, and when pressing described trigger, described nook closing member 2 removes elasticity locking, moves forward to the second position by primary importance.The tail end of the clamping part 12 of described needle guard 1 is provided with limiting section 121, when described nook closing member 2 moves to the second position, and described limiting section 121 spacing and stop motion with the clamping part 23 head end contact of nook closing member 2; Resistance makes needle guard 1 remove elasticity locking, and needle guard 1 also travels forward, and makes described nook closing member 2 get back to primary importance.In the present embodiment, described limiting section 121 is spacing hole; Clamping part 23 head end of described nook closing member 2 is provided with the protuberance 231 coordinated with described spacing hole.
It is as follows that above-mentioned biopsy needle gets inspection process:
1. nook closing member 2, needle guard 1 are nested, and by clamping part 12,23 and the clamping of puncture rifle.
2. guide location by medical image, determine that puncture needle enters suspicious lesions and organizes target area.
3. after the target that punctures is determined, the trigger unit of pressing puncture rifle.First nook closing member 2 enters pathological tissues, and parts of lesions tissue is in sampling portion 22, and needle guard 1 enters subsequently.In the process, the pathological tissues in sampling portion 22 cuts and overlaps and is stored in sampling portion 22 by the cutting part 11 on needle guard 1.
4. exit puncture needle, and take out the pathological tissues in sampling portion 22.
The above; be only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that this utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (6)
1. a biopsy needle, is characterized in that comprising needle guard and nook closing member; The head end of described nook closing member is provided with puncture portion, and described in it, rear end, puncture portion has the sampling portion of a groove-like; Described needle guard is sheathed on nook closing member outside; Described nook closing member is positioned at primary importance or the second position relative to needle guard; When described nook closing member is positioned at primary importance, described sampling portion is coated by needle guard, and when described nook closing member is positioned at the second position relative to needle guard, described sampling portion is exposed to outside needle guard;
Be provided with a groove in described sampling portion, the two ends of described groove are communicated with the two ends cell wall in described sampling portion respectively.
2. a kind of biopsy needle according to claim 1, is characterized in that: the head end of described needle guard has cutting part; When described nook closing member moves to primary importance relative to needle guard by the second position, the tissue in sampling portion is cut off by described cutting part and stays in sampling portion.
3. a kind of biopsy needle according to claim 1, is characterized in that: the tail end of described needle guard and nook closing member is respectively equipped with clamping part; By described clamping part and puncture rifle clamping keep elasticity locking condition.
4. a kind of biopsy needle according to claim 3, is characterized in that: described puncture rifle is provided with a trigger, and when pressing described trigger, described nook closing member removes elasticity locking, moves forward to stop motion after the second position by primary importance.
5. a kind of biopsy needle according to claim 3, it is characterized in that: the tail end of the clamping part of described needle guard is provided with limiting section, when described nook closing member moves to the second position relative to needle guard, the clamping part head end contact of described limiting section and nook closing member is spacing, the power produced makes needle guard remove the backward front motion of elasticity locking, makes nook closing member get back to primary importance.
6. a kind of biopsy needle according to claim 5, is characterized in that: described limiting section is spacing hole; The clamping part head end of described nook closing member is provided with the protuberance coordinated with described spacing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393190.8U CN204839583U (en) | 2015-06-09 | 2015-06-09 | Biopsy pjncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393190.8U CN204839583U (en) | 2015-06-09 | 2015-06-09 | Biopsy pjncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204839583U true CN204839583U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520393190.8U Active CN204839583U (en) | 2015-06-09 | 2015-06-09 | Biopsy pjncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204839583U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109303576A (en) * | 2018-10-23 | 2019-02-05 | 中国医学科学院北京协和医院 | A kind of Endovascular biopsy extraction element |
| CN116509465A (en) * | 2023-06-26 | 2023-08-01 | 四川大学华西第二医院 | Pelvic cavity cyst biopsy puncture outfit with flushing device |
-
2015
- 2015-06-09 CN CN201520393190.8U patent/CN204839583U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109303576A (en) * | 2018-10-23 | 2019-02-05 | 中国医学科学院北京协和医院 | A kind of Endovascular biopsy extraction element |
| CN116509465A (en) * | 2023-06-26 | 2023-08-01 | 四川大学华西第二医院 | Pelvic cavity cyst biopsy puncture outfit with flushing device |
| CN116509465B (en) * | 2023-06-26 | 2023-09-01 | 四川大学华西第二医院 | Pelvic cavity cyst biopsy puncture outfit with flushing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |