CN209808412U - Multi-point biopsy sampling device for minimally invasive breast tumor surgery - Google Patents
Multi-point biopsy sampling device for minimally invasive breast tumor surgery Download PDFInfo
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- CN209808412U CN209808412U CN201920012148.5U CN201920012148U CN209808412U CN 209808412 U CN209808412 U CN 209808412U CN 201920012148 U CN201920012148 U CN 201920012148U CN 209808412 U CN209808412 U CN 209808412U
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Abstract
The utility model relates to the technical field of minimally invasive breast tumor surgery equipment, in particular to a multipoint biopsy sampling device for minimally invasive breast tumor surgery, which comprises a sampling cylinder, a sampling needle, a needle seat, a reset spring, a gear, a rack, a driving bevel gear, a driven bevel gear and a cutter; the lower end of the sampling cylinder is provided with a plurality of sample accommodating holes; the sampling needle corresponds to the sample containing hole; the gear is arranged on the sampling cylinder, and the rack is fixedly connected with the needle seat and meshed with the gear; the driving bevel gear is coaxially connected with a gear, the driven bevel gear is arranged on the sampling cylinder, and the driving bevel gear is meshed with the driven bevel gear; the cutter is coaxially connected with the driven bevel gear and is positioned at the lower end of the sampling cylinder. Through the utility model discloses a multiple spot biopsy sampling device for breast tumour minimal access surgery, medical staff can the one-hand operation to can reduce the painful and risk of bleeding by a large scale of patient.
Description
Technical Field
The utility model relates to a mammary tumor minimal access surgery equipment technical field specifically is a multiple spot biopsy sampling device for mammary tumor minimal access surgery.
Background
Compared with the traditional operation, the minimally invasive operation has the advantages of small wound, light pain, quick recovery, short hospitalization time and less bleeding, and is widely applied to treating various diseases at present. Before and after the breast tumor operation, sampling biopsy is needed to be used as an important basis for pathological diagnosis, and due to the heterogeneity of the breast tumor, multiple biopsy sampling is needed to be carried out on pathological tissues to avoid misdiagnosis. Most of the existing tumor biopsy samplers are single-point sampling, only one sample can be taken each time, so that the sampling time is prolonged, and the pain of a patient is increased.
The utility model discloses an application number is 201420250751.4's utility model discloses a tumour biopsy sampler, including reducing hollow tube, sampling syringe needle tube bank and push-and-pull handle etc. sampling syringe needle tube bank includes 4 ~ 8 sampling syringe needles, is equipped with barb type cutting edge on the sampling syringe needle, uses this tumour biopsy sampler can once only gain a plurality of samples to reduce because of the sample time overlength leads to patient's misery, nevertheless, this tumour biopsy sampler has following shortcoming: (1) when the tumor biopsy sampler is used, one hand grasps the reducing hollow tube, the other hand pulls the handle to sample, so that the tumor biopsy sampler needs to be operated by both hands of medical staff, and the operation is inconvenient; (2) due to multi-point sampling, the sampling needle can hook and tear off multiple pathological tissues, which causes great pain to the patient and even large-area bleeding to the patient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the deficiencies of the prior art, providing a multiple spot biopsy sampling device for breast tumour minimal access surgery, medical staff can one-hand operation to can reduce the painful and the risk of large tracts of land hemorrhage of patient.
The utility model discloses the technical problem that will solve adopts following technical scheme to realize: a multipoint biopsy sampling device for minimally invasive breast tumor surgery comprises a sampling cylinder, a sampling needle, a needle seat, a reset spring, a gear, a rack, a driving bevel gear, a driven bevel gear and a cutter; the lower end of the sampling tube is provided with a plurality of sample containing holes, the needle seat can be vertically and slidably arranged in the sampling tube, and the upper end of the needle seat extends to the outside of the sampling tube; the sampling needle is arranged on the needle seat, the sampling needle corresponds to the sample containing hole, the lower end of the sampling needle is provided with a needle head, the needle head is provided with a barb, and the reset spring is arranged in the sampling cylinder and can generate vertical upward acting force on the sampling needle; the gear is arranged on the sampling cylinder, the axis of the gear is in the horizontal direction, and the rack is fixedly connected with the needle seat and meshed with the gear; the driving bevel gear is coaxially connected with a gear, the driven bevel gear is arranged on the sampling cylinder, the axis of the driven bevel gear is in the vertical direction, and the driving bevel gear is meshed with the driven bevel gear; the cutter is coaxially connected with the driven bevel gear and is positioned at the lower end of the sampling cylinder.
The technical proposal of the utility model is also that: the number of the cutters is two.
The technical proposal of the utility model is also that: when the sampling needle is reset, the cutter closes the lower port of the sample containing hole. Adopt this technical scheme, the cutter seals the lower port in sample holding hole and can prevent that the sample from dropping away from sample holding hole, in addition, works as the utility model discloses a when multipoint biopsy sampling device for breast tumour minimal access surgery is in non-user state, when the sampling needle resets promptly, the cutter can seal the lower port in sample holding hole to reduce dust, impurity entering sample holding hole, in order to reduce the harmful effects to the biopsy.
The technical proposal of the utility model is also that: six sample containing holes are uniformly distributed along the same circumferential direction.
The technical proposal of the utility model is also that: the syringe needle includes three to six sampling pieces, the same circumference equipartition is followed to the sampling piece, the barb is established on the sampling piece. By adopting the technical scheme, compared with the conical needle head in the prior art, the needle head of the technical scheme has smaller wound on the patient.
The technical proposal of the utility model is also that: the sampling needle is in threaded connection with the needle seat, and the upper end of the sampling tube is provided with a limit end cover in threaded connection with the sampling tube. By adopting the technical scheme, the sampling needle is convenient to clean and disinfect.
During the use, medical staff holds the sampling tube with one hand, presses the needle file with the thumb, makes rack and sampling needle move down, and the sampling needle stretches out and inserts in patient's pathological change tissue, then medical staff loosens the thumb, and under reset spring's effect, rack and sampling needle simultaneously upward movement, and the rack passes through gear, initiative bevel gear and driven bevel gear drive cutter rotation, and after the sampling needle hook dragged pathological change tissue and withdrawed into sample containing hole, the cutter cut off pathological change tissue.
Compared with the prior art, the utility model discloses a multiple spot biopsy sampling device for breast tumour minimal access surgery's beneficial effect does: (1) the medical staff can operate with one hand to carry out biopsy sampling, and the operation is convenient; (2) the medical staff can complete the actions of extending the sampling needle, resetting the sampling needle and cutting off by pressing the needle base once, and the sampling efficiency is high; (3) when the multiple spot sample, cut off pathological change tissue through the cutter, for the mode of tearing apart, can reduce patient's misery, because be multiple spot sample, consequently the sampling needle can hook many places pathological change tissue and tear apart pathological change tissue, causes the very big misery of patient and the risk of large tracts of land hemorrhage.
Drawings
FIG. 1 is a perspective view of a multi-point biopsy sampling device for minimally invasive surgery of breast tumors.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
FIG. 3 is a front view of a multi-point biopsy sampling device for minimally invasive breast tumor surgery (with the sampling needle extended).
Fig. 4 is a partially enlarged view of a portion B in fig. 3.
Fig. 5 is a partially enlarged view of a portion C in fig. 3.
FIG. 6 is a right sectional view of the multi-point biopsy sampling device for minimally invasive breast tumor surgery (with the sampling needle extended).
FIG. 7 is a bottom view of the multi-point biopsy sampling device (with the sampling needle extended) for minimally invasive breast tumor surgery.
Fig. 8 is a right sectional view of a multi-point biopsy sampling device for minimally invasive breast tumor surgery (with the sampling needle repositioned).
Fig. 9 is a bottom view of the multi-point biopsy sampling device used for minimally invasive surgery on breast tumors (with the sampling needle repositioned).
Fig. 10 is a schematic view of the structure of the cutter.
In the figure: 1. the sampling device comprises a sampling cylinder, 2, a sampling needle, 3, a needle seat, 4, a return spring, 5, a gear, 6, a rack, 7, a driving bevel gear, 8, a driven bevel gear, 9, a cutter, 10, a sample containing hole, 11, a barb, 12, a sampling sheet, 13, a limiting end cover, 14, a lower limiting boss, 15, an upper limiting boss, 16 and a cushion block.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the following further describes the embodiments of the present invention with reference to the attached drawings.
As shown in fig. 1 to 10, a multipoint biopsy sampling device for minimally invasive breast tumor surgery comprises a sampling cylinder 1, a sampling needle 2, a needle seat 3, a return spring 4, a gear 5, a rack 6, a driving bevel gear 7, a driven bevel gear 8, a cutter 9 and a limiting end cover 13.
The lower end of the sampling tube 1 is provided with six sample containing holes 10 which are uniformly distributed along the same circumferential direction. The needle seat 3 can be vertically and slidably arranged in the sampling tube 1, and the upper end of the needle seat 3 extends to the outside of the sampling tube 1.
The upper end of the needle base 3 is provided with a cushion block 16, the cushion block 16 is made of soft materials such as rubber or silica gel, and when medical staff press the needle base 3 for a long time, the cushion block 16 can prevent the thumb of the medical staff from ache.
The sampling needle 2 is installed on the needle seat 3 through threaded connection, the sampling needle 2 corresponds to the sample containing hole 10, the lower end of the sampling needle 2 is provided with a needle head, and the lower end of the needle head is located above the sampling cylinder 1 and has a certain distance. The syringe needle includes four sampling pieces 12, and sampling piece 12 is equipped with barb 11 along same circumference equipartition on the sampling piece 12, and the syringe needle forms the cross incision after inserting in the pathological change tissue, and is little for the wound that circular incision caused the patient, can reduce patient's misery.
Reset spring 4 installs in sampler barrel 1 inside and can produce vertical ascending effort to sampling needle 2, and is concrete, has set firmly lower spacing boss 14 in the sampler barrel 1, has set firmly upper limit boss 15 on the sampling needle 2, and reset spring 4 cover is established in the sampling needle 2 outside and is compressed tightly under between spacing boss 14 and upper limit boss 15.
The gear 5 is arranged on the sampling tube 1, the axis of the gear is in the horizontal direction, and the rack 6 is fixedly connected with the needle stand 3 and meshed with the gear 5. The driving bevel gear 7 and the driven bevel gear 8 are both provided with two gears, the driving bevel gear 7 is coaxially connected with the gear 5, the driven bevel gear 8 is installed on the sampling cylinder 1, the axis of the driven bevel gear is in the vertical direction, and the driving bevel gear 7 is meshed with the driven bevel gear 8. The number of the cutters 9 is two, and the two cutters 9 are respectively coaxially connected with the two driven bevel gears 8 and are positioned at the lower end of the sampling cylinder 1. As shown in fig. 10, the cutting blades 9 have a partial circular shape, and when the sampling needle 2 is reset, the two cutting blades 9 close the lower end of the sample-containing hole 10.
The limiting end cover 13 is installed at the upper end of the sampling tube 1 in a threaded mode and used for limiting the upper limiting position of the needle seat 3.
When the sampling device is used, a medical worker holds the sampling barrel 1 with one hand, presses the needle seat 3 with the thumb to enable the rack 6 and the sampling needle 2 to move downwards, the rack 6 drives the two cutters 9 to rotate through the gear 5, the driving bevel gear 7 and the driven bevel gear 8 so as to open the lower port of the sample containing hole 10 (shown in figure 7), and the lower end of the needle head is located above the sampling barrel 1 and has a certain distance, so that after the lower port of the sample containing hole 10 is opened, the sampling needle 2 extends out of the lower port of the sample containing hole 10 (shown in figures 3 and 6) and is inserted into pathological tissues of a patient, and the barb 11 hooks the pathological tissues. Then medical staff loosens the thumb, under reset spring 4's effect, rack 6 and sampling needle 2 simultaneous upward movement, rack 6 passes through gear 5, drive bevel gear 7 and driven bevel gear 8 drive cutter 9 are rotatory, after sampling needle 2 pulls pathological change tissue and moves back into sample containing hole 10, cutter 9 cuts off pathological change tissue and seals the lower port (as shown in fig. 8 and fig. 9) of sample containing hole 10, can prevent that the sample from dropping away from sample containing hole 10, in addition, when the utility model discloses a when being used for the multiple spot biopsy sampling device of breast tumour minimal access surgery is in non-use state, when sampling needle 2 resets promptly, cutter 9 can seal the lower port of sample containing hole 10 to reduce dust, impurity entering sample containing hole, with the harmful effects to the biopsy.
And dust and impurities are reduced from entering the sample accommodating hole.
After use, the limit end cover 13 can be detached, the needle base 3 can be taken out, the sampling needle 2 can be detached, and cleaning and disinfection are carried out.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. A multipoint biopsy sampling device for minimally invasive breast tumor surgery, characterized by: comprises a sampling cylinder (1), a sampling needle (2), a needle seat (3), a return spring (4), a gear (5), a rack (6), a driving bevel gear (7), a driven bevel gear (8) and a cutter (9); the lower end of the sampling tube (1) is provided with a plurality of sample containing holes (10), the needle seat (3) can be vertically and slidably arranged in the sampling tube (1), and the upper end of the needle seat (3) extends to the outside of the sampling tube (1); the sampling needle (2) is arranged on the needle seat (3), the sampling needle (2) corresponds to the sample containing hole (10), the lower end of the sampling needle (2) is provided with a needle head, the needle head is provided with a barb (11), and the reset spring (4) is arranged in the sampling cylinder (1) and can generate vertical upward acting force on the sampling needle (2); the gear (5) is arranged on the sampling cylinder (1) and the axis of the gear (5) is in the horizontal direction, and the rack (6) is fixedly connected with the needle seat (3) and meshed with the gear (5); the driving bevel gear (7) is coaxially connected with the gear (5), the driven bevel gear (8) is installed on the sampling cylinder (1), the axis of the driven bevel gear is vertical, and the driving bevel gear (7) is meshed with the driven bevel gear (8); the cutter (9) is coaxially connected with the driven bevel gear (8) and is positioned at the lower end of the sampling cylinder (1).
2. The multi-point biopsy sampling device for minimally invasive surgery on a breast tumor according to claim 1, wherein: the number of the cutters (9) is two.
3. The multi-point biopsy sampling device for minimally invasive surgery on a breast tumor according to claim 1, wherein: when the sampling needle (2) is reset, the cutting knife (9) seals the lower port of the sample containing hole (10).
4. The multi-point biopsy sampling device for minimally invasive breast tumor surgery of any one of claims 1 to 3, wherein: six sample containing holes (10) are uniformly distributed along the same circumferential direction.
5. The multi-point biopsy sampling device for minimally invasive breast tumor surgery of any one of claims 1 to 3, wherein: the syringe needle includes three to six sampling pieces (12), same circumference equipartition is followed in sampling piece (12), barb (11) are established on sampling piece (12).
6. The multi-point biopsy sampling device for minimally invasive breast tumor surgery of any one of claims 1 to 3, wherein: the sampling needle (2) is in threaded connection with the needle seat (3), and the upper end of the sampling tube (1) is provided with a limiting end cover (13) in threaded connection with the sampling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920012148.5U CN209808412U (en) | 2019-01-04 | 2019-01-04 | Multi-point biopsy sampling device for minimally invasive breast tumor surgery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920012148.5U CN209808412U (en) | 2019-01-04 | 2019-01-04 | Multi-point biopsy sampling device for minimally invasive breast tumor surgery |
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| CN209808412U true CN209808412U (en) | 2019-12-20 |
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| CN201920012148.5U Active CN209808412U (en) | 2019-01-04 | 2019-01-04 | Multi-point biopsy sampling device for minimally invasive breast tumor surgery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998767A (en) * | 2021-02-03 | 2021-06-22 | 上海市肺科医院 | Multifunctional biopsy sampling equipment |
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2019
- 2019-01-04 CN CN201920012148.5U patent/CN209808412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998767A (en) * | 2021-02-03 | 2021-06-22 | 上海市肺科医院 | Multifunctional biopsy sampling equipment |
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