CN219109550U

CN219109550U - Prostate cancer puncture trocar

Info

Publication number: CN219109550U
Application number: CN202222414270.XU
Authority: CN
Inventors: 李心远
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-06-02
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a prostate cancer puncture trocar, which comprises a puncture needle, wherein a sheet-shaped movable needle tip capable of covering the needle tip port of the puncture needle is movably connected to the needle tip port of the puncture needle, the movable needle tip is connected with one end of a traction wire, the other end of the traction wire extends out of the port of the other end of the puncture needle through a hollow cavity of the puncture needle, the puncture needle is also matched with a hollow tubular needle sheath with an inclined sharp opening at one end, and the needle sheath can be sleeved outside the needle body of the puncture needle. According to the utility model, the puncture needle is sleeved with the needle sheath, and the movable needle tip is arranged on the puncture needle tip, so that the hemostatic, the antibiotics and other medicines can directly reach the puncture point, the bleeding and infection probability of a patient after puncture can be reduced, and the cancer tissue can be sealed in the puncture needle tube, so that the possibility of implantation and transfer of the cancer tissue can be avoided, and the physical health of the patient can be effectively protected.

Description

Prostate cancer puncture trocar

Technical Field

The utility model relates to medical equipment, in particular to a puncture trocar for prostate cancer.

Background

Prostate cancer needle biopsy is the most reliable method for diagnosing prostate cancer, and the most common mode is transrectal or perineal needle biopsy under ultrasound guidance, which is simple to operate and short in operation time, but has the following risks: 1. needle tract planting and transferring: after the needle is inserted into the puncture needle, the prostate cancer tissue enters the puncture needle and is taken out along with the puncture needle, and the risk that the cancer tissue falls off exists in the process of taking out the prostate cancer tissue, so that cancer tissue cells are planted in the prostate tissue which is not cancerous, and planting metastasis is formed; 2. bleeding after puncture: the blood supply of the prostate tissue is rich, and bleeding at the needle tract position is easy to occur after puncture; 3. post-puncture infection: the puncture needle tract is easy to be infected, and an anti-infection means cannot be applied pertinently to prevent infection. Thus, the needles used in prostate cancer needle biopsies are in need of renewal.

Disclosure of Invention

The utility model aims to provide a puncture trocar for prostate cancer, which solves the defects and shortcomings in the prior art.

The technical problems solved by the utility model are realized by adopting the following technical scheme:

a prostate cancer puncture trocar comprising a hollow tubular puncture needle, characterized in that: the needle tip port of the puncture needle is also movably connected with a sheet-shaped movable needle tip capable of covering the needle tip port of the puncture needle, the movable needle tip is connected with one end of a traction wire, the other end of the traction wire extends out of the port of the other end of the puncture needle through the hollow cavity of the puncture needle, the puncture needle is also matched with a hollow tubular needle sheath with an inclined sharp opening at one end, and the needle sheath can be sleeved outside the needle body of the puncture needle.

For the utility model, the movable needle point is movably connected with the needle point port of the puncture needle through the rotating shaft, and an elastic piece for enabling the movable needle point to be in an open state is arranged at the connecting position.

For the utility model, the movable needle point is integrally connected with the needle point port of the puncture needle, and a bending crease is arranged at the joint.

For the utility model, the movable needle point is in a sheet shape, and the size of the peripheral edge of the sheet-shaped movable needle point is larger than the size of the peripheral edge of the inner wall of the pipe wall of the port of the needle point of the puncture needle which can be covered by the sheet-shaped movable needle point and smaller than or equal to the size of the peripheral edge of the outer wall of the pipe wall of the port of the needle point of the puncture needle which can be covered by the sheet-shaped movable needle point.

For the utility model, one end of the traction wire is connected with the movable needle point, and the joint of the traction wire and the movable needle point is positioned at the other side of the joint of the movable needle point and the needle point port of the puncture needle.

The beneficial effects are that: the utility model has the following advantages: 1. a layer of needle sheath is sleeved outside the puncture needle, a fixed puncture needle channel can be formed, and medicines and the like can be directly penetrated into the puncture point; 2. the puncture needle head is a movable needle head, and after the prostate cancer tissue enters the puncture needle tube, the needle head can be pulled up and sealed in vitro through the traction wire, so that the cancer tissue is sealed in the puncture needle tube, the contact between the cancer tissue and the normal prostate tissue is avoided, the possibility that the prostate cancer tissue is transplanted and transferred is greatly reduced, and the physical health of a patient is effectively protected;

3. the injection needle can be placed in the needle sheath after the puncture needle is taken out from the needle sheath, and medicines such as hemostatic and antibiotics can be injected into the puncture point through the injection needle, so that the bleeding and infection probability of a patient after puncture is greatly reduced.

Drawings

FIG. 1 is a cross-sectional block diagram of the present utility model;

fig. 2 is a left-hand structural view of the present utility model.

In the figure: 1-puncture needle, 2-movable needle tip, 3-traction wire, 4-needle sheath and 5-rotation shaft.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the present utility model easy to understand, the present utility model is further described below with reference to the specific drawings:

referring to fig. 1-2, a prostate cancer puncture trocar comprises a hollow tubular puncture needle 1, wherein one end of the needle tip of the puncture needle is a common bevel-mouth tip body, the other end of the puncture needle is used for being connected with other medical equipment during puncture, a sheet-shaped movable needle tip 2 capable of covering the needle tip port of the puncture needle is movably connected to the needle tip port of the puncture needle, the movable needle tip is also connected with a traction wire 3, one end of the traction wire is also connected with the movable needle tip, the other end of the traction wire extends out of the other end port (the end connected with other medical equipment) of the puncture needle through a hollow cavity of the puncture needle, the puncture needle is also matched with a needle sheath 4 with one inclined tip (shown as a structure in the drawing) and hollow tubular, and the needle sheath can be sleeved outside the needle body of the puncture needle.

The method is characterized in that when in specific implementation:

1. the movable needle point is movably connected with the needle point port (left end) of the puncture needle through a rotating shaft 5, namely a common rotating shaft is arranged at the joint of the movable needle point and the needle point port (left end) of the puncture needle, and the movable needle point can rotate around the rotating shaft within a certain range, so that the movable needle point can open (without covering the needle point port) and close (completely covering the needle point port) of the puncture needle; meanwhile, in order to ensure that the movable needle point can not cover the needle point port of the puncture needle to be closed due to the resistance of muscle tissues when the puncture needle is penetrated into a patient, an elastic piece (not shown in the drawing) capable of enabling the movable needle point to be in an open state is arranged at the joint of the movable needle point and the needle point port of the puncture needle, and the elastic piece can be in a common mode in the prior market, such as sleeving an elastic spring and the like on a rotating shaft, so that the elastic force of the elastic piece can ensure that the movable needle point is in the open state in an unused initial state (the movable needle point is flatly towards the left side of the left end of the movable needle point shown in the drawing 1).

2. The movable needle tip and the needle tip port of the puncture needle are connected, the sheet-shaped movable needle tip is integrally formed on the needle tip port of the puncture needle, a bending trace such as a concave line with the thickness smaller than that of the sheet-shaped movable needle tip is arranged at the joint of the movable needle tip and the needle tip, the movable needle tip is straight towards the left side of the left end of the movable needle tip shown in the attached drawing figure 1 in an unused initial state, in the operation process, when the prostatic cancer tissue enters the inside and outside of the puncture needle tube body, the needle tip port of the left end of the puncture needle needs to be covered by the movable needle tip so as to seal the cancer tissue in the puncture needle tube body and draw out the puncture needle, the traction line extending out of the port of the other end of the puncture needle can be pulled, and the movable puncture needle is bent towards the port of the left end of the puncture needle along the bending trace and covers the port of the left end of the puncture needle, so that the cancer tissue is sealed in the puncture needle tube body, and the possibility that the cancerous tissue is effectively prevented from contacting the normal prostatic cancer tissue and the prostatic cancer tissue is greatly reduced from being transplanted.

3. In order to effectively ensure that the sheet movable needle tip can effectively cover the needle tip port at the left end of the puncture needle in the use process, the size of the peripheral edge of the sheet movable needle tip is larger than the size of the peripheral edge of the inner wall of the port of the needle tip of the puncture needle which can be covered by the sheet movable needle tip (the size of the peripheral edge of the movable needle tip is undersize to cause the movable needle tip to possibly be blocked into the needle tube of the puncture needle), and smaller than or equal to the size of the peripheral edge of the outer wall of the port of the needle tip of the puncture needle which can be covered by the movable needle tip (the size of the peripheral edge of the movable needle tip is oversized and exceeds the size of the peripheral edge of the outer wall of the port of the puncture needle tip can cause the edge of the movable needle tip to scratch muscle tissues of the patient when the puncture needle is withdrawn from the patient).

4. In order to ensure that the movable needle point can be pulled to cover the point product of the puncture needle when the pulling wire is pulled, the joint of the pulling wire and the movable needle point is positioned at the other side of the joint of the movable needle point and the port part of the puncture needle point (as shown in the drawing, when the joint of the movable needle point and the port part of the puncture needle point is positioned below, the joint of the pulling wire and the movable needle point is positioned above). In the actual operation process, if the movable needle point is not moved by pulling the pulling wire, the pulling wire can be pulled up and down, left and right in multiple directions to try to draw the address until the movable needle point can be pulled.

5. The utility model further provides a hollow needle sheath outside the puncture needle tube, which aims to ensure that a doctor punctures the needle sheath and the puncture needle into a patient body together during operation of puncture operation, when the hemostatic, antibiotic and other medicines are needed to be injected after the puncture operation is finished to prevent bleeding and infection of the patient, the puncture needle is pulled out, the needle sheath is left to be not pulled out temporarily, then the needle head of the injection needle for injecting the hemostatic, the antibiotic and other medicines is inserted into the needle sheath and reaches an affected part, and the injection needle head and the needle sheath are pulled out together after the hemostatic, the antibiotic and other medicines are injected. Through the operation, the hemostatic, antibiotics and other medicines can be injected into the puncture point, so that the bleeding and infection probability of a patient after puncture is greatly reduced.

6. The utility model has the following advantages: a layer of needle sheath is sleeved outside the puncture needle, a fixed puncture needle channel can be formed, and medicines and the like can be directly penetrated into the puncture point; the puncture needle head is a movable needle head, and after the prostate cancer tissue enters the puncture needle tube, the needle head can be pulled up and sealed in vitro through the traction wire, so that the cancer tissue is sealed in the puncture needle tube, the contact between the cancer tissue and the normal prostate tissue is avoided, the possibility that the prostate cancer tissue is transplanted and transferred is greatly reduced, and the physical health of a patient is effectively protected; the injection needle can be placed in the needle sheath after the puncture needle is taken out from the needle sheath, and medicines such as hemostatic and antibiotics can be injected into the puncture point through the injection needle, so that the bleeding and infection probability of a patient after puncture is greatly reduced.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the spirit and scope of the utility model, which variations and modifications fall within the scope of the claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A prostate cancer puncture trocar comprising a hollow tubular puncture needle, characterized in that: the needle tip port of the puncture needle is also movably connected with a sheet-shaped movable needle tip capable of covering the needle tip port of the puncture needle, the movable needle tip is connected with one end of a traction wire, the other end of the traction wire extends out of the port of the other end of the puncture needle through the hollow cavity of the puncture needle, the puncture needle is also matched with a hollow tubular needle sheath with an inclined sharp opening at one end, and the needle sheath can be sleeved outside the needle body of the puncture needle.

2. The prostate cancer puncturing trocar of claim 1, wherein: the movable needle point is movably connected with the needle point port of the puncture needle through a rotating shaft, and an elastic piece for enabling the movable needle point to be in an open state is arranged at the connecting position.

3. The prostate cancer puncturing trocar of claim 1, wherein: the movable needle point is integrally connected with the needle point port of the puncture needle, and a bending crease is arranged at the joint.

4. A prostate cancer puncturing trocar as claimed in any one of claims 1 to 3, wherein: the movable needle point is in a sheet shape, and the size of the peripheral edge of the sheet-shaped movable needle point is larger than the size of the peripheral edge of the inner wall of the pipe wall of the port of the needle point of the puncture needle which can be covered by the sheet-shaped movable needle point and smaller than or equal to the size of the peripheral edge of the outer wall of the pipe wall of the port of the needle point of the puncture needle which can be covered by the sheet-shaped movable needle point.

5. The prostate cancer puncturing trocar of claim 1, wherein: one end of the traction wire is connected with the movable needle point, and the joint of the traction wire and the movable needle point is positioned at the other side of the joint of the movable needle point and the needle point port of the puncture needle.