CN213551992U - Multifunctional biopsy needle - Google Patents

Multifunctional biopsy needle Download PDF

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Publication number
CN213551992U
CN213551992U CN202022605592.3U CN202022605592U CN213551992U CN 213551992 U CN213551992 U CN 213551992U CN 202022605592 U CN202022605592 U CN 202022605592U CN 213551992 U CN213551992 U CN 213551992U
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China
Prior art keywords
needle
sampling
handle
outer trocar
ejection
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CN202022605592.3U
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Chinese (zh)
Inventor
杨其峰
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Qilu Hospital of Shandong University
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Qilu Hospital of Shandong University
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Priority to CN202022605592.3U priority Critical patent/CN213551992U/en
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Abstract

The utility model provides a multi-functional biopsy needle, includes outer trocar, outer trocar one end is equipped with the inclined plane needle point, and the needle handle is connected to the other end, still includes sampling mechanism and thread burying mechanism, sampling mechanism includes sampling needle and ejection mechanism, in ejection mechanism located the needle handle, the sampling needle was located in the outer trocar, thread burying mechanism includes pressing mechanism and thread burying needle, in pressing mechanism located the needle handle, thread burying needle located outer trocar. The utility model discloses have and accomplish biopsy sample, the function of buried line mark simultaneously in a puncture, still possess the injection hole simultaneously, can inject thrombin help blood coagulation, facilitate the use reduces the injury to patient.

Description

Multifunctional biopsy needle
Technical Field
The utility model relates to the field of medical equipment, concretely relates to multi-functional biopsy needle.
Background
The biopsy needle is a common instrument used before operation, can be used for biopsy sampling, cell suction and the like of solid tumors, and is an important tool for clinical pathological diagnosis.
For some tissue masses, such as breast tumors, a needle biopsy can be performed before the operation is performed, and the pathological diagnosis is determined. The puncture biopsy has little damage to tumor tissues, can not contact with tumor masses during operation, avoids the residual and the falling of tumor cells at local parts, and also shortens the operation time. If the preoperative puncture needle biopsy is malignant lesion, the basis is provided for further treatment, and doctors and patients can discuss the mode of operation treatment together, such as whether the breast-retaining operation is adopted.
After biopsy, for different types of tumors, some tumors can be directly operated, and some tumors need to be treated with drugs (such as chemotherapy) for a period of time, and then whether the operation is performed or not is determined according to the change of the size of the tumors. After preoperative treatment such as drug treatment, the properties of some tumors can be obviously changed, and in order to provide reliable basis for subsequent treatment schemes, doctors need to accurately control information such as the sizes and positions of the tumors before and after the drug treatment.
The existing problems are that the tumor subjected to needle biopsy and drug therapy cannot be effectively and accurately positioned in the subsequent treatment process, the position of part of the tumor is changed and even possibly disappears, and the tumor operation is not facilitated. In the prior art, the tumor position can be marked by means of a thread burying needle, but the tumor part needs to be punctured for the second time, so that the injury to a human body is increased, and the implementation is inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a multi-functional biopsy needle has and accomplishes biopsy sample, the function of buried line mark simultaneously in a puncture, still possesses the injection hole simultaneously, can inject the blood coagulation of fibrin ferment help, facilitates the use, reduces the injury to patient.
The utility model discloses the technical scheme who specifically adopts is:
a multifunctional biopsy needle comprises an outer trocar, wherein one end of the outer trocar is provided with an inclined needle tip for puncturing to a tumor part, the other end of the outer trocar is connected with a needle handle, and the needle handle is generally in a shape convenient to hold, such as a cylinder, and can be conveniently held during puncturing.
Still include sampling mechanism and thread burying mechanism, after outer sleeve needle pipe puncture to tumour position, sampling mechanism is used for cutting the sample with the tissue of tumour position to carry out pathological analysis to the nature of tumour, thread burying mechanism is used for burying the mark of line, the position mark of being convenient for when the operation at tumour position.
The sampling mechanism comprises a sampling needle and an ejection mechanism, the sampling needle can be a conventional sampling needle, one end of the sampling needle is provided with a shearing sampling groove, part of tissues can be cut off and taken out through radial movement along the pipe diameter, the sampling needle is arranged in the outer trocar, and one end with the shearing groove is close to one end of the needle point of the outer trocar; the ejection mechanism comprises an ejection switch and a spring, the ejection switch is arranged in the needle handle and used for controlling the switch of the sampling needle, one end of the spring is connected with the inside of the needle handle, the other end of the spring is connected with the ejection switch, when the ejection switch is not used, the spring is in a compressed state, when the ejection switch is pulled, the resistance of the spring disappears, the sampling needle is driven to move along the radial direction, and the tissue in the sampling groove is cut off.
The thread burying mechanism includes pressing mechanism and thread burying needle, the thread burying needle adopt prior art thread burying needle can for bury the sign line in organizing, pressing mechanism includes pressure spring and press switch, press switch locates in the needle handle, press switch stretches out needle handle outside surface and is used for control use, thread burying needle one end is located to the pressure spring cover, and pressure spring one end is connected with press switch, the other end and needle handle internal connection, and when not using, the pressure spring is in the diastole state, and when promoting press switch, press switch drives the thread burying needle along radial motion, and the pressure spring is compressed, can help press switch return to drive thread burying needle reciprocating motion, the completion thread buries.
The needle handle is also provided with an injection hole which is communicated with the outer thimble needle, and thrombin can be injected into a tumor part by using an injector through the injection hole so as to assist in coagulation.
Compared with the prior art, the utility model discloses the advantage is:
1) the device has the functions of sampling and embedding the identification line, and can finish sampling and embedding the identification line in one-time puncture, reduce puncture times, reduce operation and facilitate use;
2) the injection hole is arranged, so that thrombin can be injected into target tumor tissues to help blood coagulation in time after sampling.
Drawings
FIG. 1 is a view showing the structure of the present application
In the figure, the needle comprises an injection hole 1, an injection hole 2, a spring 3, an ejection switch 4, a sampling needle 5, an outer thimble needle 6, a thread burying needle 7, a pressure spring 8, a press switch 9 and a needle handle.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in the figures, the multifunctional biopsy needle comprises an outer trocar 5, wherein the outer trocar 5 is a needle tube with a hollow inner portion, one end of the outer trocar 5 is provided with a bevel needle tip for puncturing the outer trocar 5 to a tumor part, the other end of the outer trocar is connected with a needle handle 9, the needle handle 9 is generally in a shape convenient to hold, such as a cylinder, and can be conveniently held during puncturing, and a hollow space is arranged inside the needle handle 9.
The interior of the outer trocar 5 is provided with a sampling needle 4 and a thread burial needle 6 in parallel along the radial direction, one end of the sampling needle 4 with a sampling groove is close to the needle point of the inclined plane, the other end of the sampling needle extends into the needle handle 9 and is connected with the ejection switch, and similarly, one end of the thread burial needle, which is close to the needle point of the inclined plane, and the other end of the thread burial needle extends into the needle handle 9 and is connected with the push switch 8. The sampling needle 4 and the thread burying needle 6 are both realized by adopting the prior art, the two needles are arranged in the outer thimble tube 5 side by side, and the inner part of the outer thimble tube still has the residual space.
The ejection switch 3 is usually a combination of a pressing part and a blocking part, the two parts are connected through a small bayonet lock, the pressing part extends out of the needle handle to the outside, and the sampling needle is abutted against the blocking part. The spring 2 is arranged between the blocking part of the ejection switch 3 and the inner side wall of the needle handle, when the ejection switch is not used, the spring 2 is in a compression state, when the ejection switch 3 is pulled, the pressing part and the bayonet pin of the blocking part are pulled out, the resistance of the blocking part disappears, the spring 2 is bounced open, the sampling needle which is abutted against the blocking part is driven to move along the radial direction, and the tissue in the sampling groove is cut off through the shearing force at the sampling groove.
The push switch 8 is usually a combination of a sliding part and a blocking part, the two parts are connected, the sliding part extends out of the needle handle 9 to the outside for operation, the blocking part is abutted against one end of the thread burial needle 6, and the corresponding sliding groove is arranged on the side wall of the needle handle at the corresponding position. The outer side of the part, extending into the needle handle 9, of the thread burying needle 6 is sleeved with a pressure spring 7, one end of the pressure spring 7 is connected with a blocking part of the press switch 8, the other end of the pressure spring 7 is connected with the side wall inside the needle handle 9, when the needle is not used, the pressure spring 7 is in a relaxation state, when the press switch 8 slides towards the needle point direction, the press switch 8 drives the thread burying needle 6 to move along the radial direction, the pressure spring 7 is compressed, the press switch 8 can be helped to return, the thread burying needle 6 is driven to reciprocate, and thread burying is completed.
The needle handle 9 is also provided with an injection hole 1, the injection hole 1 penetrates through the needle handle 9 and is communicated with the outer thimble needle 5, thrombin can be injected through the injection hole 1 by using an injector, and after sampling and thread burial are finished, the thrombin is injected into a tumor part to help blood coagulation. The outside of the injection hole can be provided with a hole cover for performing aseptic protection when the injection hole is used externally.
After all the operations are completed, the biopsy needle can be withdrawn, the tissue cut by the sampling needle 4 can be taken out for pathological analysis, and the biopsy needle is discarded as a disposable consumable.

Claims (4)

1. A multifunctional biopsy needle is characterized by comprising an outer trocar, wherein one end of the outer trocar is provided with a bevel needle tip, and the other end of the outer trocar is connected with a needle handle;
still include the sampling mechanism and bury line mechanism, the sampling mechanism includes sampling needle and ejection mechanism, ejection mechanism locates in the needle handle, and the sampling needle is located in the outer trocar, bury line mechanism and include pressing mechanism and bury the line needle, pressing mechanism locates in the needle handle, buries the line needle and locates in the outer trocar.
2. The multi-functional biopsy needle of claim 1, wherein the ejection mechanism comprises an ejection switch and a spring, the ejection switch is disposed in the needle handle, one end of the spring is connected to the ejection switch, and the other end of the spring is connected to the needle handle;
one end of the sampling needle is provided with a shearing groove, one end of the shearing groove of the sampling needle is close to one end of the inclined needle tip of the outer trocar, and the other end of the shearing groove of the sampling needle is connected with the ejection switch.
3. The multifunctional biopsy needle of claim 1, wherein the pressing mechanism comprises a compression spring and a pressing switch, the pressing switch is disposed in the needle handle, the compression spring is sleeved at one end of the needle, one end of the compression spring is connected to the pressing switch, and the other end of the compression spring is connected to the needle handle.
4. The biopsy needle of claim 1, wherein the needle shaft further comprises an injection hole, and the injection hole is in communication with the outer cannula needle.
CN202022605592.3U 2020-11-11 2020-11-11 Multifunctional biopsy needle Active CN213551992U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022605592.3U CN213551992U (en) 2020-11-11 2020-11-11 Multifunctional biopsy needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022605592.3U CN213551992U (en) 2020-11-11 2020-11-11 Multifunctional biopsy needle

Publications (1)

Publication Number Publication Date
CN213551992U true CN213551992U (en) 2021-06-29

Family

ID=76536638

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022605592.3U Active CN213551992U (en) 2020-11-11 2020-11-11 Multifunctional biopsy needle

Country Status (1)

Country Link
CN (1) CN213551992U (en)

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