CN115969430A - Biopsy sample sampling device for oncology clinician - Google Patents
Biopsy sample sampling device for oncology clinician Download PDFInfo
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- CN115969430A CN115969430A CN202310159632.1A CN202310159632A CN115969430A CN 115969430 A CN115969430 A CN 115969430A CN 202310159632 A CN202310159632 A CN 202310159632A CN 115969430 A CN115969430 A CN 115969430A
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- needle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention relates to the technical field of medical auxiliary instruments, in particular to a biopsy sample sampling device for an oncology clinician, which comprises a grab handle, a needle cylinder, a sampling needle head and a piston needle head, wherein a press-type switch and a knob are respectively arranged on the grab handle, the needle cylinder is arranged on the grab handle, a sampling cavity is formed in one side of the needle cylinder, an electric push rod is further arranged in the needle cylinder, the sampling needle head is arranged at the output end of the electric push rod, the end part of the sampling needle head is of a pointed structure, the piston needle head slides on the surface of one side of the sampling needle head, a blade is arranged at the end part of the piston needle head, the piston needle head elastically slides in the sampling cavity, a tooth groove strip is embedded in the side wall of one side of the piston needle head, which is far away from the sampling needle head, an external gear is meshed with one side of the tooth groove strip, and an internal gear is arranged in the middle of the external gear. Compared with the prior art, the invention avoids the pain to the patient caused by pulling the surrounding tissues of the biopsy sample when the tumor sample is resected, and improves the efficiency of resecting the tumor tissue.
Description
Technical Field
The invention relates to the technical field of medical auxiliary instruments, in particular to a biopsy sample sampling device for an oncology clinician.
Background
Tumor biopsy is a method in which a small amount of tissue (which may be clamped, cut, excised, or punctured and aspirated according to different conditions) is taken out from a tumor site of a patient to prepare pathological sections, and the morphology of tumor cells and tissue structures is observed under a microscope to determine the nature, histological type, differentiation degree and the like of tumors, thereby providing a reliable basis for clinical treatment.
The puncture sampling is the most common sampling inspection mode in the biopsy process, in the puncture process, a puncture needle or a puncture gun is usually used, the sampling needle head is punctured to a tumor part under the guidance of CT or B ultrasound, then a sampling groove on the sampling needle head is used for taking out the excised tumor tissue, and when the tumor tissue is excised, the current puncture needle can drive the activity of the tissue around the sampled tumor, so that the pain of a patient is increased, discomfort is generated, and therefore, a biopsy sample sampling device is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a biopsy sample sampling device for an oncology clinician.
In order to achieve the purpose, the invention adopts the following technical scheme:
a biopsy sample sampling device for a clinical doctor in oncology department comprises a grab handle, a needle cylinder, a sampling needle head and a piston needle head, wherein a press-type switch and a knob are respectively arranged on the grab handle;
the piston syringe needle slides on one side surface of sample syringe needle, and be equipped with the blade on its tip, and piston syringe needle elastic sliding is in the sample chamber, it has the tooth groove strip to inlay on its one side lateral wall of keeping away from the sample syringe needle, one side meshing of tooth groove strip has the external gear, the centre of external gear is equipped with the internal gear, one side of internal gear still meshes and is provided with the rack, the rack slides along the inner wall in sample chamber and sets up, and one side of rack is connected with the connecting rod, the other end activity of connecting rod is in the grab handle, install adjusting gear through the knob rotation in the grab handle, adjusting gear is connected with the connecting rod also meshing.
Through adopting above-mentioned technical scheme, utilize the sample syringe needle to move outward and pierce sample tissue in, the piston syringe needle that the rethread was launched out cuts off sample tissue and remains wherein, and at last, is taken out along with the cylinder of taking out together, has avoided the pain sense that causes because of sample syringe needle drives sample tissue peripheral tearing when conventional outwards withdrawing from.
As a preferable technical scheme of the invention, the knob and the adjusting gear are fixedly connected through a shaft, and the connecting rod is provided with a first tooth groove meshed with the adjusting gear.
As a preferable technical scheme of the invention, the side wall of the connecting rod close to the other end thereof is also provided with a second tooth socket meshed with the internal gear.
By adopting the technical scheme, the movement of the piston needle head in the puncture part can be controlled by holding the handle end at the outer side, so that the operation is more convenient.
As a preferable aspect of the present invention, the rack is slid between inner walls of the outer gears.
By adopting the technical scheme, the effects that the inner gear drives the outer gear to rotate and the outer gear drives the piston needle to compress the spring and eject can be effectively realized.
As a preferable technical scheme of the invention, the switch is electrically connected with the electric push rod.
As a preferred technical scheme of the invention, a fixing piece is welded on the inner wall of the sampling cavity, a piston rod penetrates through the fixing piece, one end of the piston rod is of a spherical structure, and the other end of the piston rod is fixedly connected with one end of a piston needle.
In a preferred embodiment of the present invention, the piston rod is sleeved with a spring, the spring is welded to a side wall of the fixing piece and contacts with an end wall of the piston needle, and the connecting rod penetrates through the fixing piece and is in sliding contact with the fixing piece.
As a preferable technical scheme of the invention, the end part of the sampling needle head is also provided with a blade groove matched with the blade, and the blade groove is opposite to the piston needle head.
Through adopting above-mentioned technical scheme, when the outer gear drives the piston syringe needle and removes to the one side that is close to the stationary blade, extrude the spring of this side, and when tooth on the outer gear was not with the tooth's socket strip contact, the piston syringe needle at this moment is flicked to one side at sample syringe needle tip place under the effect of spring to excise sample tissue and remain in its and the space between the syringe needle of taking a sample, with this function of realizing the sample.
As a preferable technical scheme of the invention, a distance sensor is embedded in the end wall of one end of the piston needle head, and the distance sensor is connected with the electric push rod through an electric signal.
As a preferable aspect of the present invention, a plane of the end surface of the insert and a plane of the end surface of the insert pocket are parallel to each other.
By adopting the technical scheme, when the sampling needle head moves back, the piston needle head is driven to synchronously move back, and when the end part of the piston needle head is contacted with the fixing piece, the distance sensor is triggered, at the moment, the electric push rod stops driving the sampling needle head to continuously move back, and meanwhile, the piston needle head at the moment is just moved back to the reset position.
The beneficial effects of the invention are:
through set up piston needle and sample syringe needle in the cylinder, both are supporting, set up the blade on the piston needle, utilize the motion of ejection force control piston needle for the biopsy sample that the blade will cut off is saved between piston needle and sample syringe needle, and along with the cylinder move the back outward and taken the separation in, avoided when excision tumour sample because of driving biopsy sample surrounding tissue drag and the painful sense that produces the patient, and improved the efficiency of excision tumour tissue.
Drawings
FIG. 1 is a schematic structural view of a biopsy sample sampling device for an oncology clinician according to the present invention;
FIG. 2 is a schematic view of the installation of a plunger needle and a sampling needle of a biopsy sample sampling device for an oncologist according to the present invention;
FIG. 3 is a schematic view of the coupling of the adjustment gear and the connecting rod of the biopsy sample sampling device for an oncology clinician according to the present invention;
fig. 4 is a schematic diagram of the connection between the external gear and the internal gear and the connection between the rack and the rack of the biopsy sample sampling device for the oncology clinician according to the present invention.
In the figure: 1. a handle; 2. a switch; 3. a knob; 31. an adjusting gear; 4. a needle cylinder; 41. a sampling cavity; 42. a fixing sheet; 5. a piston needle; 51. a rack and groove bar; 52. a piston rod; 53. a blade; 6. a sampling needle; 61. an electric push rod; 62. an insert pocket; 7. a connecting rod; 8. a rack; 9. an outer gear; 91. an internal gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a biopsy sample sampling device for a clinical doctor in oncology department comprises a handle 1, a needle cylinder 4, a sampling needle 6 and a piston needle 5, wherein a press-type switch 2 and a knob 3 are respectively arranged on the handle 1, the needle cylinder 4 is arranged on the handle 1, a sampling cavity 41 is arranged on one side inside the needle cylinder 4, an electric push rod 61 is further arranged on the inner wall of one side inside the needle cylinder through screws, the sampling needle 6 is inserted into the output end of the electric push rod 61, the end part of the sampling needle is of a pointed structure, and the switch 2 is electrically connected with the electric push rod 61;
the piston needle 5 slides on one side surface of the sampling needle 6, a blade 53 is inserted on the end part of the piston needle 5, the piston needle 5 elastically slides in the sampling cavity 41, a fixing piece 42 is welded on the inner wall of the sampling cavity 41, a piston rod 52 penetrates through the fixing piece 42, one end of the piston rod 52 is of a spherical structure, the other end of the piston rod is fixedly connected with one end of the piston needle 5, a spring is sleeved on the piston rod 52 and is welded on the side wall of the fixing piece 42 and is in contact with the end wall of the piston needle 5, and the connecting rod 7 penetrates through the fixing piece 42 and is in sliding contact with the fixing piece 42;
by adopting the technical scheme, the piston needle head 5 extrudes the spring to one side, so that the spring accumulates potential energy, and when the external gear 9 is not meshed with the toothed rack 51, the spring applies elasticity to eject the piston needle head 5 to one side of the sampling needle head 6;
a tooth groove strip 51 is fixedly embedded in the side wall of the piston needle 5 far away from the sampling needle 6, an external gear 9 is meshed with one side of the tooth groove strip 51, the tooth groove strip 51 and the external gear 9 are arranged in a tangent mode (namely the part without teeth on the external gear 9 is in tangent motion when the tooth groove strip 51 is in contact), an internal gear 91 is arranged in the middle of the external gear 9, a rack 8 is further meshed with one side of the internal gear 91, the rack 8 is arranged to control the internal gear 91 to rotate so as to drive the external gear 9 to rotate synchronously, the rack 8 is arranged along the inner wall of the sampling cavity 41 in a sliding mode, a connecting rod 7 which is integrally bonded is connected with one side of the rack 8, and the other end of the connecting rod 7 moves in the grab handle 1;
in order to guide and limit the rack 8 and avoid the problems of blocking the movement of the external gear 9 and the like, the rack 8 is controlled to slide between the inner walls of the external gear 9;
in order to be able to control the ejection movement of the plunger needle 5 outside the puncture, the following are provided:
an adjusting gear 31 is rotatably arranged in the grab handle 1 through a knob 3, the adjusting gear 31 is arranged to drive the connecting rod 7 to do reciprocating motion, so that the connecting rod 7 drives the rack 8 to move and adjust, the adjusting gear 31 is meshed with the connecting rod 7, the knob 3 is fixedly connected with the adjusting gear 31 through a shaft, a first tooth groove meshed with the adjusting gear 31 is formed in the connecting rod 7, and a second tooth groove meshed with the inner gear 91 is further formed in the side wall of the connecting rod 7 close to the other end of the connecting rod;
in order to know the moving state of the piston needle head 5 more conveniently, the rotation of the knob 3 is set to make the knob 3 generate 'click' sound to prompt an operator after the adjusting gear 31 is meshed with the connecting rod 7 to form a tooth and tooth socket;
wherein, the end of the sampling needle 6 is also provided with a blade 53 groove adapted to the blade 53, the blade 53 groove is arranged opposite to the piston needle 5, and the plane of the end surface of the blade 53 is parallel to the plane of the end surface of the blade groove 62.
When the sampling needle 6 moves back, the piston needle 5 in contact with the sampling needle is driven to move synchronously, in order to control the position of the piston needle 5 after moving back, a distance sensor is embedded on the end wall of one end of the piston needle 5, the set value of the distance sensor is the length of the spring in a relaxed state, the distance sensor is connected with the electric push rod 61 through an electric signal, when the piston needle 5 moves to the end part of the spring in the relaxed state to be contacted, the distance sensor is triggered, and at the moment, the electric push rod 61 stops.
The working principle is as follows:
firstly, pressing the switch 2 to start the electric push rod 61, enabling the sampling needle 6 to automatically pause after extending to the farthest position, then, under the guidance of CT or B-ultrasonic, puncturing the sampling needle 6 into the body of a patient, slowly moving the sampling needle to a tumor part, and stopping after puncturing;
subsequently, the knob 3 is rotated to drive the adjusting gear 31 to rotate, so that the connecting rod 7 is driven to move towards the right side shown in the figure 2, the rack 8 is driven to synchronously move, the inner gear 91 rotates clockwise along with the movement of the rack 8, the outer gear 9 is driven to rotate along with the rack, the piston needle head 5 is driven to move towards the left side of the figure 2 through the meshing with the toothed socket strip 51, a spring at one side is compressed, the knob 3 stops rotating after 5 sounds of clicking are rotated, the spring at the moment is in a compressed state, and only one tooth is left between the outer gear 9 and the toothed socket strip 51 in a meshing manner;
subsequently, the knob 3 with a sound of click is rotated again, so that the external gear 9 and the spline 51 rotate through the last engaged tooth and spline, the spring at this time exerts elastic force on the piston needle 5, the piston needle is ejected, the blade 53 on the end part is used for cutting off part of the tumor tissue, the blade 53 is inserted into the blade groove 62, and the cut tumor tissue is left between the piston needle 5 and the sampling needle 6;
after sampling, the switch 2 is pressed again, so that the electric push rod 61 drives the sampling needle 6 to move back, at the moment, the sampling needle 6 also drives the synchronous blade 53 and the piston needle 5 to move together, when the piston needle 5 moves to be in contact with the end part of the spring in a loose state, the distance sensor is triggered, the electric push rod 61 stops immediately, the sampling needle 6 at the moment is still outside the needle cylinder 4, then the knob 3 is continuously rotated, so that the outer gear 9 continuously rotates to be in contact with the tooth grooves on the moving back tooth groove strip 51 (namely, resistance is obviously sensed when the piston needle rotates), the needle cylinder 4 is taken out, after the sampling, the knob 3 is continuously rotated, the piston needle 5 compresses the spring again, the sampled tumor tissue is exposed, the knob 3 stops rotating after the part is exposed, then the tumor tissue is moved to the sample test tube by using tweezers to be stored, and the sampler is sterilized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A biopsy sample sampling device for an oncology clinician, comprising:
the handle (1), the handle (1) is respectively provided with a press switch (2) and a knob (3);
a needle cylinder (4) which is arranged on the grab handle (1), one side of the interior of the needle cylinder is provided with a sampling cavity (41), and the interior of the needle cylinder is also provided with an electric push rod (61);
it is characterized by also comprising:
the sampling needle head (6), the sampling needle head (6) is installed on the output end of the electric push rod (61), and the end part of the sampling needle head is of a pointed structure;
piston syringe needle (5), it slides on one side surface of sample syringe needle (6), and be equipped with blade (53) on its tip, and piston syringe needle (5) elastic sliding is in sample chamber (41), it inlays on one side lateral wall of keeping away from sample syringe needle (6) tooth socket strip (51), one side meshing of tooth socket strip (51) has external gear (9), the centre of external gear (9) is equipped with internal gear (91), one side of internal gear (91) still meshes and is provided with rack (8), rack (8) slide along the inner wall of sample chamber (41) and set up, and one side of rack (8) is connected with connecting rod (7), the other end activity of connecting rod (7) is in grab handle (1), install adjusting gear (31) through knob (3) rotation in grab handle (1), adjusting gear (31) are connected with connecting rod (7) also meshing.
2. The biopsy sample sampling device for the oncology clinician according to claim 1, wherein the knob (3) and the adjusting gear (31) are fixedly connected through a shaft, and the connecting rod (7) is provided with a first tooth socket engaged with the adjusting gear (31).
3. The biopsy sample sampling device for oncology clinicians according to claim 2, wherein the link (7) further has a second tooth slot on a sidewall near the other end thereof to engage with the internal gear (91).
4. The oncology clinician biopsy sample sampling device according to claim 3, characterized in that the rack (8) slides between inner walls of an outer gear (9).
5. The biopsy sample sampling device for oncology clinicians according to claim 1, wherein the switch (2) is in electrical connection with an electric push rod (61).
6. The biopsy sample sampling device for the oncology clinician according to claim 1, wherein a fixing plate (42) is welded on an inner wall of the sampling cavity (41), a piston rod (52) penetrates through the fixing plate (42), one end of the piston rod (52) is a sphere structure, and the other end of the piston rod is fixedly connected with one end of the piston needle (5).
7. The oncology clinician biopsy sample sampling device according to claim 6, wherein the piston rod (52) is sleeved with a spring welded on a side wall of a fixing plate (42) and in contact with an end wall of the piston needle (5), and the connecting rod (7) penetrates the fixing plate (42) and is in sliding contact therewith.
8. The biopsy sample sampling device for the oncology clinician according to claim 1, wherein the end of the sampling needle (6) is further provided with a blade (53) groove adapted to the blade (53), the blade (53) groove being disposed opposite to the piston needle (5).
9. The biopsy sample sampling device for oncology clinicians according to claim 1, wherein a distance sensor is embedded on an end wall of the piston needle (5), and the distance sensor is connected with the electric push rod (61) through an electric signal.
10. The oncology clinician biopsy sample sampling device of claim 1, wherein a plane of an end face of the blade (53) and a plane of an end face of a blade slot (62) are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310159632.1A CN115969430B (en) | 2023-02-24 | 2023-02-24 | Biopsy sample sampling device for oncology clinicians |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310159632.1A CN115969430B (en) | 2023-02-24 | 2023-02-24 | Biopsy sample sampling device for oncology clinicians |
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| CN115969430A true CN115969430A (en) | 2023-04-18 |
| CN115969430B CN115969430B (en) | 2023-07-18 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115969430B (en) | 2023-07-18 |
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