CN205359511U - Biopsy sampling device under MRI environment - Google Patents
Biopsy sampling device under MRI environment Download PDFInfo
- Publication number
- CN205359511U CN205359511U CN201620003536.3U CN201620003536U CN205359511U CN 205359511 U CN205359511 U CN 205359511U CN 201620003536 U CN201620003536 U CN 201620003536U CN 205359511 U CN205359511 U CN 205359511U
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- China
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- seat
- needle
- closing member
- nook closing
- needle guard
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Abstract
The utility model relates to a biopsy sampling device under MRI environment belongs to medical apparatus field. Biopsy needle mechanism is by nook closing member, needle cover, nook closing member seat, needle cover seat, wedge locking device, supporting seat, reset spring constitution. The nook closing member embedding is in the nook closing member seat, and the embedding of needle cover is in needle cover seat, and the needle ways is outside the nook closing member. Nook closing member seat and needle cover seat are in the supporting seat to can follow the supporting seat slides. The barb of nook closing member seat front end can catch on needle cover seat edge, and the terminal wedge that is of needle cover seat can be pressed from both sides the locking of tight arm, and the jut in the middle of the nook closing member seat can back down and pressed from both sides tight needle cover seat, makes the unblock of needle cover seat. Reset spring installs between supporting seat and needle cover seat. The utility model is suitable for an operating through the power drive device, can providing bigger sample for the manual biopsy needle of standard, the pain of production is little, and the used time is few.
Description
Technical field:
This utility model relates to the sampling device for biopsy under a kind of MRI environment, belongs to field of medical appliances.
Background technology:
Biopsy needle is a kind of medical apparatus and instruments, it is adaptable to the multiple organs such as kidney, liver, lung, mammary gland, thyroid, prostate, pancreas, testis, uterus, ovary, body surface, can be used for sampling such as the living tissue of cone tumor and not clear kind of tumor etc., draws cell.Clinically, when checking for tumour patient, in order to determine the character of tumor, it is necessary to take some living tissues with sampling device for biopsy from disease sites.The method that past traditional tissue biopsy adopts is surgical incision method, by performing the operation, tissue taking-up carries out biopsy, this method exist wound face greatly, costly, shortcoming that patient's misery is big.
Utility model content:
For the problems referred to above, it is proposed to the sampling device for biopsy under a kind of MRI environment, this utility model is applicable to be operated by Power Drive Unit, can provide bigger sample relative to the manual biopsy needle of standard, and the pain of generation is little, and the time used is few.
This utility model is the sampling device for biopsy under a kind of MRI environment, and it comprises nook closing member, needle guard, needle core base, needle guard seat, wedge lock mechanism, supporting seat, back-moving spring, it is characterized in that: nook closing member is embedded in needle core base, needle guard is embedded in needle guard seat, and needle guard is enclosed within outside nook closing member；Needle core base and needle guard seat are positioned at supporting seat, it is possible to slide along supporting seat；The barb of needle core base front end can catch on needle guard seat edge, needle guard seat end is wedge shape, it is possible to locked by wedge lock mechanism, and the jut in the middle of needle core base can back down clamped needle guard seat, making needle guard seat unlock, back-moving spring is arranged between supporting seat and needle guard seat.
As preferred technical scheme, described wedge lock mechanism is become with compression spring set by clamp arm, and the axle of described clamp arm coordinates with the axle sleeve being fixed on supporting seat, has compression spring between described axle and axle sleeve.
As preferred technical scheme, described nook closing member, needle guard are ceramic material；Needle guard, needle core base, needle guard seat, supporting seat, back-moving spring are nylon material；Wedge lock mechanism is polyformaldehyde material.
The beneficial effects of the utility model are:
Material selected by whole device is all that nuclear-magnetism is compatible, it is possible to use under MRI environment.Impact on NMR (Nuclear Magnetic Resonance)-imaging when this device effectively reduces operation, improves the effect of imaging.
During use, the wedge structure of needle guard seat can be clamped arm locking, it is ensured that the stability that nook closing member punctures, it is prevented that nook closing member slides and causes patient too much hemorrhage, and after nook closing member has punctured, the projection of needle core base can back down needle guard seat makes it unlock, and completes sampling.Its simple in construction, uses, easy for installation, and simple to operate, cost is low, and sampling is convenient, and patient suffering is little, wound is little, go out insufficiency of blood, and biopsy success rate is high.Applied widely, long service life, there is safe and reliable effect.
Accompanying drawing illustrates:
For ease of illustrating, this utility model is embodied as and accompanying drawing is described in detail by following.
Accompanying drawing 1 is this utility model structure chart,
Accompanying drawing 2 is needle core base structure chart.
In figure: 1-needle core base, 2-nook closing member pedestal, 3-supporting seat, 4-needle guard seat, 5-clamp arm, 6-compress spring, 7-needle guard, 8-needle guard pedestal, 9-back-moving spring, 10-nook closing member.
Detailed description of the invention:
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by the specific embodiment shown in accompanying drawing, this utility model is described.However, it should be understood that these descriptions are illustrative of, and it is not intended to limit scope of the present utility model.Additionally, in the following description, eliminate the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
Structure of the present utility model form as shown in Figure 1, Figure 2, shown in.A kind of medical biopsy needle comprises needle core base (1), nook closing member pedestal (2), supporting seat (3), needle guard seat (4), clamp arm (5), compression spring (6), needle guard (7), needle guard pedestal (8), back-moving spring (9), nook closing member (10).Nook closing member (10) is embedded in needle stand (1), and needle guard (7) is embedded in needle guard seat (4), and needle guard (7) is enclosed within nook closing member (10) outward.Needle core base (1) and needle guard seat (4) are positioned at biopsy needle base (3), it is possible to slide along supporting seat (3).The barb of needle core base (1) front end can catch on needle guard seat (4) edge, needle guard seat (4) end is wedge shape, arm (5) locking can be clamped, the axle of clamp arm coordinates with the axle sleeve being fixed on biopsy needle base, compression spring (6) is had between axle and the axle sleeve of clamp arm, jut in the middle of needle core base (1) can back down clamped needle guard seat (4), makes needle guard seat (4) unlock.Back-moving spring (9) is arranged between biopsy needle base and needle guard seat.
Utility model works process is as follows:
First needle core base (1) rearward movement, the barb of needle core base (1) front end can catch on needle guard seat (4) edge, thus driving needle guard seat (4) rearward movement together, needle guard seat (4) end is wedge shape, can be clamped arm locking when needle guard seat (4) moves to clamp arm (5) place, now back-moving spring (9) and compression spring (6) is all completed, by compression, the state of winding up.Then needle core base (1) travels forward, and nook closing member (10) first thrusts human body, and puncture needle front end is in opening, and now tissue to be taken drops in the sampling groove of puncture needle nook closing member (10) front end.Then the jut in the middle of needle core base (1) can back down clamped needle guard seat (4), makes needle guard seat (4) unlock, and back-moving spring (9) drives needle guard seat (4) and needle guard (7) to travel forward, and cuts tissue to be taken, and biopsy needle front end is in closure state.After being withdrawn from an organization by biopsy needle, complete sampling process.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (3)
1. the sampling device for biopsy under a MRI environment, it comprises nook closing member, needle guard, needle core base, needle guard seat, wedge lock mechanism, supporting seat, back-moving spring, it is characterized in that: described nook closing member is embedded in needle core base, needle guard is embedded in needle guard seat, and needle guard is enclosed within outside nook closing member；Needle core base and needle guard seat are positioned at supporting seat, and slide along supporting seat；Needle guard seat end is wedge shape, has projection, back-moving spring to be arranged between supporting seat and needle guard seat in the middle of needle core base.
2. the sampling device for biopsy under a kind of MRI environment according to claim 1, it is characterized in that: described wedge lock mechanism is become with compression spring set by clamp arm, the axle of clamp arm coordinates with the axle sleeve being fixed on supporting seat, has compression spring between described axle and axle sleeve.
3. the sampling device for biopsy under a kind of MRI environment according to claim 1, it is characterised in that: described nook closing member, needle guard are made of ceramic materials；Needle guard, needle core base, needle guard seat, supporting seat, back-moving spring are made up of nylon material；Wedge lock mechanism is made up of polyformaldehyde material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003536.3U CN205359511U (en) | 2016-01-05 | 2016-01-05 | Biopsy sampling device under MRI environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003536.3U CN205359511U (en) | 2016-01-05 | 2016-01-05 | Biopsy sampling device under MRI environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205359511U true CN205359511U (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620003536.3U Expired - Fee Related CN205359511U (en) | 2016-01-05 | 2016-01-05 | Biopsy sampling device under MRI environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205359511U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049368A (en) * | 2017-04-22 | 2017-08-18 | 安徽硕金医疗设备有限公司 | A kind of Novel biopsy needle |
| CN107260228A (en) * | 2017-06-01 | 2017-10-20 | 施康培医疗科技（武汉）有限公司 | A kind of biopsy needle device of band damping protection |
| CN110547830A (en) * | 2019-09-17 | 2019-12-10 | 哈尔滨理工大学 | Rotary biopsy gun |
-
2016
- 2016-01-05 CN CN201620003536.3U patent/CN205359511U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107049368A (en) * | 2017-04-22 | 2017-08-18 | 安徽硕金医疗设备有限公司 | A kind of Novel biopsy needle |
| CN107260228A (en) * | 2017-06-01 | 2017-10-20 | 施康培医疗科技（武汉）有限公司 | A kind of biopsy needle device of band damping protection |
| CN110547830A (en) * | 2019-09-17 | 2019-12-10 | 哈尔滨理工大学 | Rotary biopsy gun |
| CN110547830B (en) * | 2019-09-17 | 2022-07-19 | 哈尔滨理工大学 | Rotary biopsy gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20180105 |