Needle slot plate and puncture device

Abstract

The present invention relates to the technical field of puncture equipment, and in particular to a needle slot plate and a puncture device, wherein a plurality of needle threading channels for inserting coaxial needles are provided on the plate body of the needle slot plate, and the plurality of needle threading channels are arranged in parallel; adjacent needle threading channels are connected by connecting channels, the width of the connecting channels is smaller than the diameter of the needle threading channels, and the coaxial needles in the needle threading channels can be moved to another needle threading channel via the connecting channels when in one needle threading channel. According to the technical solution provided by the present invention, when it is necessary to replace the needle threading channel, that is, when the puncture position is changed, the coaxial needle is moved along the connecting channel to the designated needle threading channel. Since human skin has a certain elasticity, the coaxial needle also moves a corresponding distance under the skin at this time, that is, the coaxial needle moves to the next puncture position when it is not pulled out. When the needle slot plate in the technical solution of the present invention is adopted, when it is necessary to replace the needle slot, there is no need to repeatedly puncture the coaxial needle, which can simplify the operation steps and reduce the pain of the patient.

Description

Technical Field

[0001] The invention relates to the technical field of puncture equipment, in particular to a needle groove plate and a puncture device. Background Art

[0002] At present, biopsy is generally used to detect and screen prostate diseases. During the operation, a small amount of sample tissue needs to be taken from different parts of the prostate to achieve the purpose of clear diagnosis. Biopsy is less invasive and has a high accuracy rate, so it has been widely used in clinical practice.

[0003] Prostate biopsy surgery mainly includes perineal puncture and rectal puncture. Among them, the risk of infection of perineal puncture is lower than that of transperineal prostate puncture, so perineal puncture has been more widely used. Because the prostate needs to be sampled multiple times, each time a biopsy needle needs to be inserted into the perineum to collect and then pulled out to take out the sample, multiple wounds will be left in the perineum after multiple sampling, which will cause great pain to the patient, and more wounds will increase the risk of infection.

[0004] In order to solve the problem of pain and high risk of infection, a coaxial needle can be used. That is, during the puncture operation, the coaxial needle is first inserted into the perineum to establish a biopsy channel, and then the biopsy needle is inserted through the channel established by the coaxial needle. After the coaxial needle is set up, the number of punctures in the perineum can be reduced, the patient's pain can be reduced, and the risk of infection can be reduced. However, when replacing the needle slot, the coaxial needle needs to be pulled out and then inserted through the corresponding needle channel. The operation is time-consuming and laborious, and the number of punctures with the coaxial needle will increase. Summary of the invention

[0005] The present invention provides a needle slot plate and a puncture device. Multiple needle insertion channels on the plate body are connected. When the needle slot needs to be replaced, the coaxial needle is moved to the designated needle insertion channel through the connecting channel. There is no need to repeatedly puncture the coaxial needle, which can simplify the operation steps and reduce the pain of the patient.

[0006] One aspect of the present invention provides a needle slot plate, including a plate body, on which are provided a plurality of needle threading channels for threading coaxial needles, wherein the plurality of needle threading channels are arranged in parallel; adjacent needle threading channels are connected by connecting channels, the width of the connecting channels is smaller than the diameter of the needle threading channels, and the coaxial needles in the needle threading channels can be moved to another needle threading channel via the connecting channels when in one needle threading channel.

[0007] Optionally, the needle insertion end of the needle insertion channel is provided with an introduction bevel.

[0008] Optionally, a scale label is provided on the side of the plate body.

[0009] Another aspect of the present invention provides a puncture device, including a bracket for connecting an ultrasonic probe and the needle groove plate mentioned above.

[0010] Optionally, the bracket includes an arched main body, and the bottom of the plate is fixedly connected to the apex of the main body.

[0011] Optionally, the bracket further includes a handle, which protrudes from the outer wall of the main body and is fixedly connected to the outer wall of the main body.

[0012] Optionally, the bracket includes two handles, and the two handles are symmetrically arranged with the midline of the main body as the center.

[0013] Optionally, at least one side of the board body is provided with a first reinforcing rib along the height direction of the board body, the side end of the first reinforcing rib is connected to the side wall of the board body, and the bottom end is connected to the main body; and / or, the bracket includes a second reinforcing rib, the side end of the second reinforcing rib is connected to the outer wall of the main body, and the bottom end is connected to the handle.

[0014] Optionally, a positioning protrusion for clamping the ultrasonic probe is provided on the inner wall of the main body.

[0015] Optionally, an indication label is provided on the outer wall of the main body.

[0016] According to the technical solution provided by the present invention, during the puncture operation, the needle of the coaxial needle is inserted into the patient's body through the needle channel to form a needle channel. The puncture needle performs multiple puncture operations on a position of the lesion in the coaxial needle. When the needle channel needs to be replaced, that is, when the puncture position is changed, the coaxial needle is moved along the connecting channel to the designated needle channel. Since human skin has a certain elasticity, the coaxial needle also moves a corresponding distance under the skin at this time, that is, the coaxial needle moves to the next puncture position without being pulled out. When the needle slot plate in the technical solution of the present invention is used, when the needle slot needs to be replaced, there is no need to repeat the puncture of the coaxial needle, which can simplify the operation steps and reduce the pain of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For purposes of illustration and not limitation, the present invention will now be described in terms of preferred embodiments thereof, with particular reference to the accompanying drawings, in which:

[0018] Figure 1 The circle A in the figure is a partial enlarged view of the needle groove plate provided in the embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a puncture device provided in an embodiment of the present invention;

[0020] Figure 3 is a front view of a puncture device provided in an embodiment of the present invention;

[0021] Figure 4 is a side view of the puncture device provided in an embodiment of the present invention.

[0022] In the figure:

[0023] 1: plate body; 2: needle threading channel; 3: connection channel; 4: introduction slope; 5: scale label; 6: bracket; 61: main body; 62: handle; 63: first reinforcing rib; 64: second reinforcing rib; 65: positioning protrusion; 66: indication label. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present application. For the sake of simplicity, in the description of each implementation of the present application, the same or similar reference numerals are used for the same or similar device / method steps.

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other.

[0026] Figure 1 The circle A in FIG. 1 is a partial enlarged view of the needle groove plate provided in an embodiment of the present invention. Figure 1 As shown, the needle slot plate includes a plate body 1, on which are provided a plurality of needle threading channels 2 for threading coaxial needles, and the plurality of needle threading channels 2 are arranged in parallel; adjacent needle threading channels 2 are connected by connecting channels 3, the width of the connecting channels 3 is smaller than the diameter of the needle threading channels 2, and the coaxial needles in the needle threading channels 2 can be moved to another needle threading channel 2 via the connecting channels 3 when in one needle threading channel 2.

[0027] When sampling lesions, multi-point sampling is required, such as 6-point sampling or 12-point sampling, etc. In the existing multi-point sampling, each point needs to be punctured with a coaxial needle. Taking 12-point sampling as an example, at least 12 coaxial needle punctures are required at the perineum of the patient, which will increase the patient's pain. In the embodiment of the present invention, a connecting channel 3 is used to penetrate the needle channel 2 on the plate body 1, wherein the width of the connecting channel 3 is slightly smaller than the aperture of the needle channel 2, and the diameter of the coaxial needle is adapted to the needle channel 2, that is, the width of the connecting channel 3 is also slightly smaller than the diameter of the coaxial needle. When the position of the coaxial needle is changed, the coaxial needle is forced to enter the connecting channel 3 from the needle channel 2 with the help of external force. When the coaxial needle is in the connecting channel 3, the plate body 1 undergoes a slight deformation. When the coaxial needle moves to the designated needle channel 2, the plate body 1 returns to its original state.

[0028] After the position of the coaxial needle in the needle channel 2 is changed, the position of the insertion end of the coaxial needle also needs to be changed. Without pulling out the coaxial needle, the coaxial needle can be moved by utilizing the elasticity of human skin. At this time, the coaxial needle is moved to a new puncture position, and the puncture needle can be used for puncture sampling. This method effectively simplifies the operation steps and reduces the pain of the patient. Taking the 12-point sampling operation as an example, only two coaxial needle (i.e., 2 points) puncture operations are required to complete it.

[0029] like Figure 1 As shown, in the embodiment of the present invention, the needle insertion end of the needle insertion channel 2 is provided with an introduction bevel 4. The introduction bevel 4 can expand the opening degree of the needle insertion end of the needle insertion channel 2, thereby facilitating the insertion operation of the coaxial needle and the puncture needle. In addition, a scale label 5 is provided on the side of the plate body 1, and multiple scale labels 5 correspond to corresponding needle insertion channels 2 one by one, which is convenient for medical staff to select and use.

[0030] When the needle slot plate provided in the embodiment of the present invention is used for puncture operation, the needle head of the coaxial needle is inserted into the patient's body through the needle slot 2 to form the needle slot 2, and the puncture needle can perform multiple puncture operations on a position of the lesion in the coaxial needle. When it is necessary to replace the needle slot 2, that is, to change the puncture position, the coaxial needle is moved up and down along the connecting channel 3 to the designated needle slot 2. Since the human tissue has a certain elasticity, the coaxial needle also moves a corresponding distance under the skin at this time, that is, the coaxial needle can move to the next puncture position without being pulled out. Therefore, when the needle slot needs to be replaced by the needle slot plate in the technical solution of the present invention, there is no need to repeatedly insert the coaxial needle, which can simplify the operation steps and reduce the pain of the patient.

[0031] Figure 2 is a schematic structural diagram of a puncture device provided in an embodiment of the present invention; Figure 3 is a front view of a puncture device provided in an embodiment of the present invention; Figure 4 is a side view of the puncture device provided by an embodiment of the present invention. Figures 2 to 4 As shown, in the embodiment of the present invention, the puncture device includes a bracket 6 for connecting the ultrasonic probe, and the needle slot plate mentioned above.

[0032] When the puncture device is in use, the bracket 6 is connected to the outer wall of the ultrasonic probe, and the ultrasonic probe is inserted into the rectum through the patient's anus to collect images. The needle outlet end of the needle channel 2 on the plate body 1 is attached to the patient's perineum. After confirming the puncture position, the coaxial needle puncture operation is performed, and then the flip-out puncture sampling operation is performed. When the puncture position needs to be changed, the operation method of the above-mentioned needle slot plate is adopted, which will not be repeated here.

[0033] like Figures 2 to 4 As shown, in the embodiment of the present invention, the bracket 6 includes an arched main body 61, and the bottom of the plate body 1 is fixedly connected to the vertex of the main body 61. The main body 61 of the bracket 6 is semicircular or has an arc greater than a semicircular shape, and an opening is arranged at the bottom thereof. The diameter of the opening is slightly smaller than the outer diameter of the connected ultrasonic probe. When connected to the ultrasonic probe, the opening is deformed and slightly expanded outward. After being sleeved on the ultrasonic probe, the ultrasonic probe is tightly held by the rebound force at the opening.

[0034] In the embodiment of the present invention, the bracket 6 further includes a handle 62, which is protruding from the outer wall of the main body 61 and fixedly connected to the outer wall of the main body 61. Figures 2 to 4 As shown, when the bracket 6 is taken for operation and connected to the ultrasound probe, the handle 62 is held for convenient operation, wherein an anti-slip structure, such as an anti-slip thread, may be provided on the handle 62 to prevent slipping during operation. Preferably, the bracket 6 includes two handles 62, which are symmetrically arranged with the midline of the main body 61 as the center.

[0035] like Figures 1 to 4 As shown, at least one side of the plate body 1 is provided with a first reinforcing rib 63 along the height direction of the plate body 1, the side end of the first reinforcing rib 63 is connected to the side wall of the plate body 1, and the bottom end is connected to the main body 61; and / or, the bracket 6 includes a second reinforcing rib 64, the side end of the second reinforcing rib 64 is connected to the outer wall of the main body 61, and the bottom end is connected to the handle 62. In the embodiment of the present invention, the plate body 1 has a certain height, and the needle threading channel 2 is provided, and it is necessary to avoid deviation, and the handle 62 needs to withstand the force applied by the hand, therefore, reinforcing ribs are provided on the plate body 1 and the handle 62, and the strength of the plate body 1 and the handle 62 can be improved by using the reinforcing ribs.

[0036] The embodiment of the present invention provides a puncture device. When in use, the bracket 6 is connected to the ultrasonic probe, wherein a positioning protrusion 65 is provided on the inner wall of the main body 61, and a groove adapted to the positioning protrusion 65 is provided on the outer wall of the ultrasonic probe. When connected, the main body 61 is sleeved on the outer wall of the ultrasonic probe, and the positioning protrusion 65 is snapped into the groove. An indication label 66 is provided on the outer wall of the main body 61, such as an arrow "→" with a direction, and the indication label 66 can be used to indicate the installation direction of the bracket 6, and can also be used to indicate the insertion direction of the coaxial needle and the puncture needle.

[0037] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A needle groove plate, characterized in that: It comprises a plate body (1), on which a plurality of needle-threading channels (2) for threading coaxial needles are provided, and the plurality of needle-threading channels (2) are arranged in parallel; Adjacent needle threading channels (2) are connected by a connecting channel (3), the width of the connecting channel (3) is smaller than the diameter of the needle threading channel (2) and smaller than the diameter of the coaxial needle, and enables the coaxial needle in one needle threading channel (2) to move to another needle threading channel (2) via the connecting channel (3).

2. The needle groove plate according to claim 1, characterized in that: The needle insertion end of the needle insertion channel (2) is provided with an introduction bevel (4).

3. The needle groove plate according to claim 1, characterized in that: A scale label (5) is provided on the side of the plate body (1).

4. A puncture device, characterized in that: It comprises a bracket (6) for connecting an ultrasonic probe, and a needle slot plate as claimed in any one of claims 1 to 3.

5. The puncture device according to claim 4, characterized in that: The bracket (6) comprises an arched main body (61), and the bottom of the plate body (1) is fixedly connected to the top of the main body (61).

6. The puncture device according to claim 5, characterized in that: The bracket (6) further comprises a handle (62), which is protruding from the outer wall of the main body (61) and is fixedly connected to the outer wall of the main body (61).

7. The puncture device according to claim 6, characterized in that: The bracket (6) comprises two handles (62), and the two handles (62) are symmetrically arranged with the midline of the main body (61) as the center.

8. The puncture device according to claim 6, characterized in that: A first reinforcing rib (63) is provided on at least one side of the plate body (1) along the height direction of the plate body (1); the side end of the first reinforcing rib (63) is connected to the side wall of the plate body (1), and the bottom end is connected to the main body (61); and / or, The bracket (6) comprises a second reinforcing rib (64), the side end of the second reinforcing rib (64) is connected to the outer wall of the main body (61), and the bottom end of the second reinforcing rib (64) is connected to the handle (62).

9. The puncture device according to any one of claims 5 to 8, characterized in that: A positioning protrusion (65) for clamping an ultrasonic probe is provided on the inner wall of the main body (61).

10. The puncture device according to any one of claims 5 to 8, characterized in that: An indication label (66) is provided on the outer wall of the main body (61).

Images