CN204951009U - Medical piercing depth - Google Patents
Medical piercing depth Download PDFInfo
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- CN204951009U CN204951009U CN201520392975.3U CN201520392975U CN204951009U CN 204951009 U CN204951009 U CN 204951009U CN 201520392975 U CN201520392975 U CN 201520392975U CN 204951009 U CN204951009 U CN 204951009U
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- latch piece
- puncture
- closing member
- containing cavity
- thrust device
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Abstract
The utility model provides a medical piercing depth, including puncture rifle and pjncture needle, the pjncture needle be equipped with an operating device and with the kayser mechanism of operating device interlock, the pjncture needle is arranged in the puncture rifle the holding intracavity time, operating device exposes in the outside of puncture rifle, the operation operating device drives kayser mechanism is in the motion of holding intracavity, the elastic component of holding intracavity extrudees in kayser mechanism to cooperate with the kayser cooperation mechanism of holding intracavity, make kayser mechanism is in elasticity lock solid state. The utility model provides a medical biopsy piercing depth, its simple structure, small, the quality is lighter. Make things convenient for medical staff's in -service use to structural stability and reliability are all secure.
Description
Technical field
This utility model relates to a kind of medical thrust device.
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 and puncture rifle, its matching relationship is complicated, and the quality of puncture rifle is comparatively large, and complicated structure brings the problem of the higher and less stable of cost to puncture rifle.
Utility model content
Technical problem underlying to be solved in the utility model is to provide a kind of Medical biopsy sting device, and its structure is simple, and volume is little, lighter weight.Facilitate the actual use of medical worker, and structural stability and reliability are all secure.
In order to solve above-mentioned technical problem, this utility model provides a kind of medical thrust device, comprises puncture rifle and puncture needle;
Described puncture needle is provided with an operating mechanism and the locking mechanism with described operating mechanism interlock; When described puncture needle is placed in the containing cavity of described puncture rifle, described operating mechanism is exposed to the outside of puncture rifle; Operating described operating mechanism drives described locking mechanism to move in described containing cavity, the elastic component in locking mechanism extruding containing cavity, and matches with the snap fit mechanism in containing cavity, makes described locking mechanism be in elasticity locking condition.
In a preferred embodiment: described puncture needle comprises nook closing member and needle guard; The head end of described nook closing member is provided with puncture portion, and its 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.
In a preferred embodiment: described locking mechanism is divided into the first latch piece being located at described nook closing member tail end and the second latch piece being located at described needle guard tail end.
In a preferred embodiment: described operating mechanism is divided into the pull bar with described first latch piece interlock, and with the push rod of described second latch piece interlock; When in the containing cavity that described nook closing member and needle guard are placed in described puncture rifle, described pull bar is exposed to outside described puncture gun breech end, and described push rod is exposed to outside the head end of described puncture rifle; Pull described pull bar that the first latch piece is moved towards the direction near described puncture gun breech portion; Promoting described push rod makes described second latch piece move towards the direction near described puncture gun breech portion.
In a preferred embodiment: described first latch piece and the second latch piece comprise the rib with free end; The free end of described rib is provided with snap fit.
In a preferred embodiment: the head end of described first latch piece is provided with impact block; When described first latch piece is unlocked by elasticity locking condition, described first latch piece moves towards the direction of the second latch piece, and the snap fit of described impact block and the second latch piece clashes into and makes the second latch piece remove elasticity locking condition.
In a preferred embodiment: described snap fit mechanism is the projection being arranged at described containing cavity inwall; The end of described projection coordinates kayser with described snap fit.
In a preferred embodiment: the head end of described projection is a spigot surface; The front end of described snap fit has the inclined-plane matched with described spigot surface.
In a preferred embodiment: the surface of described puncture rifle is also provided with a trigger mechanism, one end of described trigger mechanism extends in described containing cavity; When described first latch piece is in elasticity locking condition, the elongated end of described trigger mechanism and the snap fit contact of described first latch piece.
In a preferred embodiment: described trigger mechanism also has a hook, there is a limited block in described containing cavity; When described first latch piece is in elasticity locking condition.Described hook and limited block contact coordinate.
Compared to prior art, the technical solution of the utility model possesses following beneficial effect:
This utility model provides the full-automatic aspiration biopsy device of a kind of lightweight, and structure is simple, reliably.When being punctured to certain depth, patient looses one's grip, also can not be obviously crooked because own wt is excessive, departs from predetermined puncture target spot.When predetermined sampling point is arrived in the puncture of puncture portion, after percussion, once complete all sampling actions.Shorten sample time, sampling action is quick, and avoid semi-automatic biopsy device manually to push casing-pipe cutting and " to cut flesh with a blunt knife " effect, because human viscera organ is neural obvious to passivity Traction reflexes, patient pain's discomfort sensation obviously; Not obvious to quick sharp keen cutting pain.This full-automatic biopsy device once completes all sampling actions, also can obviously reduce CT or PET/CT scanning times in art, reduce patient radiation's property exposure, particularly favourable for child patient.This full-automatic biopsy device, different sample length can be set, meet the sampling requirement (as the organella such as thyroid, testis focus sampling etc.) of different parts, large small lesion, avoid long sample length to puncture focus, injure normal structure or adjacent organs, reduce risk.
Accompanying drawing explanation
Fig. 1 is the combination schematic diagram of medical thrust device in this utility model preferred embodiment;
Fig. 2 is generalized section when locking mechanism is in elasticity locking condition in medical thrust device in this utility model preferred embodiment;
Fig. 3 is the partial enlarged drawing of trigger mechanism in medical thrust device in this utility model preferred embodiment.
Detailed description of the invention
Hereafter in conjunction with the accompanying drawings and embodiments this utility model is described further.
With reference to figure 1-3, a kind of medical thrust device, comprises puncture rifle 1 and puncture needle 2;
Described puncture needle 2 is provided with an operating mechanism 21 and the locking mechanism 22 with described operating mechanism 21 interlock; When described puncture needle 2 is placed in the containing cavity 11 of described puncture rifle 1, described operating mechanism 21 is exposed to the outside of puncture rifle 1; Operating described operating mechanism 21 drives described locking mechanism 21 to move in described containing cavity 11, locking mechanism 21 extrudes the elastic component 12 in containing cavity 11, and match with the snap fit mechanism 13 in containing cavity 11, make described locking mechanism 22 be in elasticity locking condition.
Described puncture needle 2 comprises nook closing member 23 and needle guard 24; The head end of described nook closing member is provided with puncture portion, and its 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.This part is same as the prior art, just in order to subsequent descriptions conveniently makes character narrate, figure does not carry out description and the sign of concrete structure.
The concrete structure of the present embodiment is as follows: described locking mechanism 22 is divided into the first latch piece 221 being located at described nook closing member 23 tail end and the second latch piece 222 being located at described needle guard 24 tail end.
Described operating mechanism 21 is divided into the pull bar 211 with described first latch piece 221 interlock, and with the push rod 212 of described second latch piece 222 interlock; When in the containing cavity 11 that described nook closing member 23 and needle guard 24 are placed in described puncture rifle 1, described pull bar 211 is exposed to outside described puncture rifle 1 tail end, and described push rod 212 is exposed to outside the head end of described puncture rifle 1, and to be separated by a segment distance with head end; Pull described pull bar 211 that first latch piece 221 is moved towards near the direction of described puncture rifle 1 afterbody; Promoting described push rod 212 makes described second latch piece 222 move towards near the direction of described puncture rifle 1 afterbody.
Therefore user only needs control pull bar 211 and push rod 212 can control the first latch piece 221 and the second latch piece 222, thus makes it to reach elasticity locking condition respectively.
The concrete structure of described first latch piece 221 and the second latch piece 222 is:
Described first latch piece 221 and the second latch piece 222 comprise the rib 2211,2221 with free end respectively; The free end of described rib 2211,2221 is provided with snap fit 2212,2222.
Described snap fit mechanism 13 is for being arranged at the projection of described containing cavity 11 inwall; The end 131 of described projection coordinates kayser with described snap fit 2212,2222.
The head end 132 of described projection is a spigot surface; The front end of described snap fit 2212,2222 has the inclined-plane matched with described spigot surface.When described first latch piece 221 and the second latch piece 222 extrude elastic component 12 move time, described spigot surface and sloped roof are supported, and described rib 2211,2221 is stepped down deformation.Described first latch piece 221 and the second latch piece 222 are in the process of motion, and described snap fit 2212,2222 and described projection contact, deformation of stepping down described in making keeps always.When described snap fit 2212,2222 moves to the end of described projection, described resistance disappears, and the deformation of stepping down of described rib 2211,2221 recovers, and makes snap fit 2212,2222 coordinate kayser with the end 131 of projection.Thus make the first latch piece 221 and the second latch piece 222 keep elasticity locking condition.
In order to control the elasticity locking condition removing described first latch piece 221, the surface of described puncture rifle 1 is also provided with a trigger mechanism 14, and one end of described trigger mechanism 14 extends in described containing cavity 11; When described first latch piece 221 is in elasticity locking condition, the elongated end 141 of described trigger mechanism 14 and snap fit 2212 contact of described first latch piece 221.Described trigger mechanism 14 is made to be in state to be triggered.
When pressing described trigger mechanism 14, the snap fit 2212 that described elongated end 141 extrudes the first latch piece 221 makes to step down after elastic deformation and unlocks; Described first latch piece 221 moves towards near the direction of the second latch piece 222 under the effect of elastic component 12 elastic reset power.Therefore nook closing member 23 also moves towards same direction, and when nook closing member 23 moves to the second position, sampling portion is exposed to outside needle guard 24.
In order to remove the elasticity locking condition of described second latch piece 222, the head end of described first latch piece 221 is provided with impact block 2213; When described first latch piece 221 is unlocked by elasticity locking condition, described first latch piece 221 moves towards the direction of the second latch piece 222, and the snap fit 2222 of described impact block 2213 and the second latch piece clashes into and makes the second latch piece 222 remove elasticity locking condition.Described second latch piece 222 moves under the effect of elastic component 12 reseting elasticity, and needle guard 24 is also moved towards same direction, thus makes nook closing member 23 get back to primary importance relative to needle guard 24, and sampling portion is again coated by needle guard 24 institute.Thus complete the process of sampling.
In addition, in order to be limited in containing cavity 11 by the elongated end 141 of trigger mechanism 14, described trigger mechanism 14 also has a hook 142, has a limited block 15 in described containing cavity 11; When described first latch piece 221 is in elasticity locking condition.Described hook 142 and limited block 15 contact coordinate.Thus trigger mechanism 14 can not be come off.
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 (10)
1. a medical thrust device, is characterized in that comprising puncture rifle and puncture needle;
Described puncture needle is provided with an operating mechanism and the locking mechanism with described operating mechanism interlock; When described puncture needle is placed in the containing cavity of described puncture rifle, described operating mechanism is exposed to the outside of puncture rifle; Operating described operating mechanism drives described locking mechanism to move in described containing cavity, the elastic component in locking mechanism extruding containing cavity, and matches with the snap fit mechanism in containing cavity, makes described locking mechanism be in elasticity locking condition.
2. a kind of medical thrust device according to claim 1, is characterized in that: described puncture needle comprises nook closing member and needle guard; The head end of described nook closing member is provided with puncture portion, and its 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.
3. a kind of medical thrust device according to claim 2, is characterized in that: described locking mechanism is divided into the first latch piece being located at described nook closing member tail end and the second latch piece being located at described needle guard tail end.
4. a kind of medical thrust device according to claim 3, is characterized in that: described operating mechanism is divided into the pull bar with described first latch piece interlock, and with the push rod of described second latch piece interlock; When in the containing cavity that described nook closing member and needle guard are placed in described puncture rifle, described pull bar is exposed to outside described puncture gun breech end, and described push rod is exposed to outside the head end of described puncture rifle; Pull described pull bar that the first latch piece is moved towards the direction near described puncture gun breech portion; Promoting described push rod makes described second latch piece move towards the direction near described puncture gun breech portion.
5. a kind of medical thrust device according to claim 3, is characterized in that: described first latch piece and the second latch piece comprise the rib with free end; The free end of described rib is provided with snap fit.
6. a kind of medical thrust device according to claim 5, is characterized in that: the head end of described first latch piece is provided with impact block; When described first latch piece is unlocked by elasticity locking condition, described first latch piece moves towards the direction of the second latch piece, and the snap fit of described impact block and the second latch piece clashes into and makes the second latch piece remove elasticity locking condition.
7. a kind of medical thrust device according to claim 5, is characterized in that: described snap fit mechanism is the projection being arranged at described containing cavity inwall; The end of described projection coordinates kayser with described snap fit.
8. a kind of medical thrust device according to claim 7, is characterized in that: the head end of described projection is a spigot surface; The front end of described snap fit has the inclined-plane matched with described spigot surface.
9. a kind of medical thrust device according to claim 5, is characterized in that: the surface of described puncture rifle is also provided with a trigger mechanism, and one end of described trigger mechanism extends in described containing cavity; When described first latch piece is in elasticity locking condition, the elongated end of described trigger mechanism and the snap fit contact of described first latch piece.
10. a kind of medical thrust device according to claim 9, is characterized in that: described trigger mechanism also has a hook, has a limited block in described containing cavity; When described first latch piece is in elasticity locking condition, described hook and limited block contact coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392975.3U CN204951009U (en) | 2015-06-09 | 2015-06-09 | Medical piercing depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392975.3U CN204951009U (en) | 2015-06-09 | 2015-06-09 | Medical piercing depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204951009U true CN204951009U (en) | 2016-01-13 |
Family
ID=55046107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520392975.3U Active CN204951009U (en) | 2015-06-09 | 2015-06-09 | Medical piercing depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204951009U (en) |
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2015
- 2015-06-09 CN CN201520392975.3U patent/CN204951009U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |