Puncture needle and surgical device

Abstract

The present application belongs to the technical field of medical devices, and discloses a puncture needle and a surgical device. The puncture needle comprises a needle head, a visual component, a needle rod and a pressure sensor. The needle head extends along a first direction and comprises a tip and a first connecting end. The tip is provided with a first through hole on the lateral side, and the central axis of the first through hole extends along the first direction. The needle head is internally provided with a cavity, and the first through hole is in communication with the cavity. The visual component comprises a miniature camera, which is arranged in the first through hole and the cavity and captures images at the needle head through the first through hole. The needle rod extends along the first direction and comprises a second connecting end, which is connected with the first connecting end. The needle rod is hollow inside. The pressure sensor is arranged in the needle rod, and the needle rod at the position corresponding to the pressure sensor is a soft rod. The pressure sensor is used for detecting the pressure generated when the needle head contacts with human tissues. The pressure sensor detects the pressure when the needle head contacts with human tissues, and combines with the captured images, thereby improving the safety and accuracy of the surgery.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a puncture needle and a surgical device. BACKGROUND

[0002] In minimally invasive surgery, puncture needles are one of the tools commonly used by doctors to punch holes in the abdomen of a patient so that surgical instruments can enter the abdominal cavity. However, conventional puncture needles cannot provide real-time visual information, and doctors have difficulty accurately determining the position of the needle tip during the puncture process, especially when approaching internal organs, which can easily cause accidental damage to internal organs.

[0003] In the prior art, some puncture needles have integrated optical fibers or miniature cameras to provide real-time video through image transmission technology to help doctors better determine the position of the needle tip; however, when using image transmission technology to assist doctors during surgery, the doctor may make a mistake in judging the image, which can result in accidental damage to internal organs, so there is still a risk in puncture surgery. SUMMARY

[0004] The purpose of the present application is to provide a puncture needle and a surgical device to solve the problem of accidental damage to internal organs caused by doctors' mistakes in judging images in the prior art, thereby improving the safety and accuracy of surgery.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] On the one hand, a puncture needle is provided, comprising:

[0007] a needle tip extending in a first direction, comprising a tip and a first connecting end, the tip having a first through-hole provided on the side thereof, the center axis of the first through-hole extending in the first direction, the needle tip having a cavity provided therein, the first through-hole being in communication with the cavity;

[0008] a vision component, the vision component comprising a miniature camera, the miniature camera being disposed in the first through-hole and the cavity and capturing an image of the needle tip through the first through-hole;

[0009] a needle shaft extending in the first direction, comprising a second connecting end, the second connecting end being connected to the first connecting end, the needle shaft being hollow;

[0010] a pressure sensor, the pressure sensor being disposed in the needle shaft, the needle shaft at a position corresponding to the pressure sensor being a soft shaft, the pressure sensor being configured to detect a pressure generated when the needle tip contacts a human tissue.

[0011] As an alternative technical solution of the puncture needle, the visual component further comprises a male plug, the micro camera and the male plug are connected, the male plug is arranged in the cavity and penetrates out of the first connecting end, the female plug is arranged at one end of the pressure sensor close to the needle, and the male plug is plugged with the female plug, so that the visual component is electrically connected with the pressure sensor.

[0012] As an alternative technical solution of the puncture needle, the puncture needle further comprises a signal transmission component arranged in the needle rod, the signal transmission component comprises a flexible flat cable and a main control board, the needle rod comprises a third connecting end, the main control board is arranged close to the third connecting end, one end of the flexible flat cable is electrically connected with the pressure sensor, and the other end of the flexible flat cable is electrically connected with the main control board.

[0013] As an alternative technical solution of the puncture needle, the signal transmission component further comprises a main control chip, an analog-to-digital conversion chip and an antenna, the main control chip and the analog-to-digital conversion chip are electrically connected and arranged on the main control board, the antenna is arranged on the main control board and extends along the first direction, and a free end of the antenna is directed towards the third connecting end.

[0014] As an alternative technical solution of the puncture needle, the puncture needle further comprises a needle cap, the needle cap comprises an open end and a closed end, the open end is connected with the third connecting end, the closed end is provided with an insulating cover, and the antenna is directed towards the insulating cover.

[0015] As an alternative technical solution of the puncture needle, the puncture needle further comprises a power component, the power component comprises a battery, and the battery is arranged in the needle rod and electrically connected with the pressure sensor and the visual component.

[0016] As an alternative technical solution of the puncture needle, the power component further comprises a spiral coil, the flexible flat cable is wrapped outside the battery, and the spiral coil is arranged inside the flexible flat cable to wirelessly charge the battery.

[0017] As an alternative technical solution of the puncture needle, the visual component further comprises a light-transmitting lens, and the light-transmitting lens is arranged in the first through hole.

[0018] As an alternative technical solution of the puncture needle, the material of the soft rod is low-hardness stainless steel.

[0019] In another aspect, a surgical device is provided, comprising a surgical robot sliding table, a puncture cannula and the puncture needle, the puncture cannula is connected with the surgical robot sliding table and is arranged outside the puncture needle.

[0020] The beneficial effects of the present application are as follows:

[0021] The application discloses a puncture needle and a surgical device, the puncture needle comprising a needle head, a visual component, a needle rod and a pressure sensor, the needle head extending along a first direction and comprising a tip and a first connecting end, the tip being provided with a first through hole on the lateral side, the central axis of the first through hole extending along the first direction, the needle head being internally provided with a cavity, and the first through hole being in communication with the cavity; the visual component comprising a miniature camera, the miniature camera being arranged in the first through hole and the cavity and shooting an image at the needle head through the first through hole; the needle rod extending along the first direction and comprising a second connecting end, the second connecting end being connected with the first connecting end, and the needle rod being hollow inside; and the pressure sensor being arranged in the needle rod, the needle rod at the position corresponding to the pressure sensor being a soft rod, and the pressure sensor being used for detecting the pressure generated when the needle head contacts with human tissue. The needle rod at the position corresponding to the pressure sensor is a soft rod, the sensitivity and the accuracy of the pressure sensor are improved, the pressure generated when the needle head contacts with human tissue is detected through the pressure sensor, the image shot at the needle head is assisted, internal organs are prevented from being injured by mistake, and the safety and the accuracy of the surgery are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the contents of the embodiments of the present application and the drawings.

[0023] Figure 1 is a partial structure schematic view of a surgical device provided by the embodiments of the present application;

[0024] Figure 2 is an axonometric view of a puncture needle provided by the embodiments of the present application;

[0025] Figure 3 is one of partial structure schematic views of a puncture needle provided by the embodiments of the present application;

[0026] Figure 4 is the second of partial structure schematic views of a puncture needle provided by the embodiments of the present application;

[0027] Figure 5 is the third of partial structure schematic views of a puncture needle provided by the embodiments of the present application.

[0028] In the drawings:

[0029] 1, surgical robot slide table; 2, puncture cannula;

[0030] 10, puncture needle; 11, needle head; 111, first through hole; 12, needle rod; 13, needle cap; 131, insulating cover;

[0031] 20, visual assembly; 21, miniature camera; 22, male plug;

[0032] 30, pressure sensor;

[0033] 40, signal transmission assembly; 41, flexible flat cable; 42, main control board; 43, main control chip; 44, analog-digital conversion chip; 45, antenna;

[0034] 50, battery. DETAILED DESCRIPTION

[0035] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely illustrative of the application and not in limitation thereof. It should also be noted that, for the purpose of brevity of description, only the parts of the drawings that are relevant to the present application are shown.

[0036] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or it can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and oblique above of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "lower", "lower" and "lower" of the first feature to the second feature include the vertical and oblique below of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0039] In the prior art, some puncture needles have integrated optical fibers or miniature cameras to provide real-time video through image transmission technology, helping doctors better determine the position of the needle; however, when using image transmission technology to assist doctors during surgery, the doctor may make a mistake in judging the image, resulting in damage to internal organs, so there is still risk in puncture surgery.

[0040] To solve the above problems, the embodiment provides a surgical device, which refers to Figure 1 , comprising a surgical robot sliding table 1, a puncture cannula 2 and a puncture needle 10, the puncture cannula 2 is connected with the surgical robot sliding table 1 and is sleeved outside the puncture needle 10. When using the surgical device, the surgical robot sliding table 1 drives the puncture cannula 2 and the puncture needle 10 to approach the patient's abdomen or other parts and perform puncture, after piercing the patient's skin, the puncture needle 10 is removed, so that other surgical instruments can enter the patient's abdomen from the puncture cannula 2.

[0041] Specifically, referring to Figures 2-4 , the puncture needle 10 comprises a needle head 11, a visual component 20, a needle shaft 12 and a pressure sensor 30; the needle head 11 extends in a first direction and comprises a tip and a first connecting end, a first through hole 111 is arranged on the side of the tip, the first through hole 111 is a countersunk hole to avoid damaging the patient's skin with the edge of the first through hole 111, the center axis of the first through hole 111 extends in the first direction, and a cavity is arranged inside the needle head 11, and the first through hole 111 is in communication with the cavity; in the embodiment, the needle head 11 is made of ultra-high hardness austenitic stainless steel, such as 416 stainless steel, which not only ensures the strength of the needle head 11, but also has good corrosion resistance, suitable for use in surgical environment.

[0042] The visual component 20 comprises a miniature camera 21, which is arranged in the first through hole 111 and the cavity and captures images at the needle head 11 through the first through hole 111; specifically, the miniature camera 21 is internally integrated with an LED lamp, which can realize illumination of the patient's abdominal cavity and improve the clarity of the images captured by the miniature camera 21 at the needle head 11. Further, the visual component 20 further comprises a light-transmitting lens, which is arranged in the first through hole 111. Specifically, the light-transmitting lens is made of high-hardness sapphire material, which can significantly reduce physical damage to the miniature camera 21 during puncture, and can also prevent tissue fluid and the like from entering the cavity and damaging the miniature camera 21, ensuring the image quality and service life of the miniature camera 21.

[0043] The needle rod 12 extends in the first direction and comprises a second connecting end connected with the first connecting end, and the needle rod 12 is hollow inside; in the embodiment, the needle rod 12 is provided in a columnar shape and is made of metal material, the first connecting end is provided as a convex shaft, the second connecting end is matched with the first connecting end hole shaft, and the second connecting end is connected with the first connecting end by using low-temperature laser welding to avoid damaging the internal electrical elements of the needle 11 and the needle rod 12.

[0044] The pressure sensor 30 is arranged in the needle rod 12, the needle rod 12 at the position corresponding to the pressure sensor 30 is a soft rod, and the pressure sensor 30 is used to detect the pressure generated when the needle 11 contacts the human tissue; specifically, the material of the soft rod is low-hardness stainless steel. In the embodiment, the low-hardness stainless steel can be designed to be thinned to increase the softness of the stainless steel, so that the stress of the needle 11 can be well transmitted to the pressure sensor 30, and the sensitivity of the pressure sensor 30 is further improved. The pressure generated when the needle 11 contacts the human tissue is detected by the pressure sensor 30, which is assisted by the image shot at the needle 11, to avoid injuring internal organs and improve the safety and accuracy of the operation.

[0045] Further, the visual assembly 20 further comprises a male plug 22, the miniature camera 21 is connected with the male plug 22, the male plug 22 is arranged in the cavity and penetrates out of the first connecting end, one end of the pressure sensor 30 close to the needle 11 is provided with a female plug, and the male plug 22 is inserted with the female plug to electrically connect the visual assembly 20 with the pressure sensor 30. Specifically, a plurality of insertion pins are arranged inside the male plug 22 to facilitate insertion into the female plug, so as to electrically connect the visual assembly 20 with the pressure sensor 30. In the embodiment, the cavity is provided in a cylindrical shape, and the male plug 22 is provided in a cylindrical shape and is attached to the inner wall of the cavity.

[0046] Further, referring to Figures 2-5 , the puncture needle 10 further comprises a signal transmission assembly 40 arranged in the needle rod 12, comprising a soft wire 41 and a main control board 42, the needle rod 12 comprises a third connecting end, the main control board 42 is arranged close to the third connecting end, one end of the soft wire 41 is electrically connected with the pressure sensor 30, and the other end is electrically connected with the main control board 42. The soft wire 41 can transmit the electrical signals of the miniature camera 21 and the pressure sensor 30 to the main control board 42. Specifically, one end of the soft wire 41 close to the main control board 42 is provided with a terminal, and the soft wire 41 is electrically connected with the main control board 42 through the terminal. In the embodiment, the soft wire 41 is provided in a semicircular shape and is attached to the inner wall of the needle rod 12, and the terminal is provided in a semicircular shape.

[0047] Further, the signal transmission assembly 40 further comprises a master control chip 43, an analog-digital conversion chip 44 and an antenna 45, the master control chip 43 and the analog-digital conversion chip 44 are electrically connected and are both arranged on the master control board 42, the analog-digital conversion chip 44 converts the electrical signal received by the master control board 42 into a digital signal, the master control chip 43 sends the converted digital signal to the antenna 45, the antenna 45 is arranged on the master control board 42 and extends along the first direction, the free end of the antenna 45 faces the third connecting end, so as to send the digital signal to the upper computer. In the embodiment, the communication between the master control chip 43 and the upper computer includes but is not limited to 2.4GHz Wi-Fi and Bluetooth communication; these wireless communication modes can ensure efficient data transmission between the puncture needle 10 and the upper computer.

[0048] Further, the puncture needle 10 further comprises a needle cap 13, the needle cap 13 comprises an open end and a closed end, the open end is connected with the third connecting end, and the closed end is provided with an insulating cover 131, and the antenna 45 points to the insulating cover 131. Specifically, the needle cap 13 is a hollow circular plate structure, the insulating cover 131 is arranged at the geometric center of the closed end, and the antenna 45 points to the insulating cover 131, so that the signal can be transmitted and received. In the embodiment, the needle cap 13 is made of a metal material, the open end is provided as a convex shaft, the third connecting end is matched with the hole shaft of the open end, and the third connecting end and the open end are connected by using low-temperature laser welding, so as to avoid damaging the internal electrical elements of the needle rod 12.

[0049] Further, the puncture needle 10 further comprises a power assembly, the power assembly comprises a battery 50, the battery 50 is arranged in the needle rod 12 and is electrically connected with the pressure sensor 30 and the visual assembly 20. In the embodiment, the power assembly further comprises a spiral coil, the soft wire 41 is wrapped outside the battery 50, and the spiral coil is arranged inside the soft wire 41, so as to wirelessly charge the battery 50. Specifically, the battery 50 is a graphene battery, which has the advantages of large capacity, fast charging and long service life, and can ensure that the puncture needle 10 can work stably and continuously during the operation process. In the embodiment, the battery 50 is arranged at two positions which are spaced apart along the extension direction of the needle rod 12.

[0050] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A puncture needle characterized by, The application relates to a puncture needle, which comprises the following components: a needle head (11) extending along a first direction, comprising a tip and a first connecting end, wherein a first through hole (111) is arranged on the side of the tip, the central axis of the first through hole (111) extends along the first direction, and a cavity is arranged in the needle head (11), and the first through hole (111) is communicated with the cavity; a visual assembly (20) comprising a micro camera (21), wherein the micro camera (21) is arranged in the first through hole (111) and the cavity, and the micro camera (21) takes images at the needle head (11) through the first through hole (111); a needle rod (12) extending along the first direction, comprising a second connecting end, wherein the second connecting end is connected with the first connecting end, and the needle rod (12) is hollow; a pressure sensor (30) arranged in the needle rod (12), wherein the needle rod (12) at the position corresponding to the pressure sensor (30) is a soft rod, and the pressure sensor (30) is used for detecting the pressure generated when the needle head (11) contacts with human tissues.

2. The puncture needle of claim 1, wherein The visual assembly (20) further comprises a male plug (22), wherein the micro camera (21) is connected with the male plug (22), the male plug (22) is arranged in the cavity and penetrates out of the first connecting end, one end of the pressure sensor (30) close to the needle head (11) is provided with a female plug, and the male plug (22) is inserted with the female plug, so that the visual assembly (20) is electrically connected with the pressure sensor (30).

3. The puncture needle of claim 2, wherein The puncture needle further comprises a signal transmission assembly (40), wherein the signal transmission assembly (40) is arranged in the needle rod (12), and comprises a soft wire (41) and a main control board (42), the needle rod (12) comprises a third connecting end, the main control board (42) is arranged close to the third connecting end, one end of the soft wire (41) is electrically connected with the pressure sensor (30), and the other end of the soft wire (41) is electrically connected with the main control board (42).

4. The puncture needle of claim 3, wherein The signal transmission assembly (40) further comprises a main control chip (43), an analog-digital conversion chip (44) and an antenna (45), wherein the main control chip (43) and the analog-digital conversion chip (44) are electrically connected and arranged on the main control board (42), the antenna (45) is arranged on the main control board (42) and extends along the first direction, and the free end of the antenna (45) faces the third connecting end.

5. The puncture needle of claim 4, wherein The puncture needle further comprises a needle cap (13), wherein the needle cap (13) comprises an open end and a closed end, the open end is connected with the third connecting end, the closed end is provided with an insulating cover (131), and the antenna (45) points to the insulating cover (131).

6. The puncture needle of claim 3, wherein The puncture needle further comprises a power assembly, wherein the power assembly comprises a battery (50), the battery (50) is arranged in the needle rod (12) and is electrically connected with the pressure sensor (30) and the visual assembly (20).

7. The puncture needle of claim 6, wherein The power assembly further comprises a spiral coil, the flexible flat cable (41) is wrapped outside the battery (50), and the spiral coil is arranged inside the flexible flat cable (41) to wirelessly charge the battery (50).

8. The puncture needle of any one of claims 1-7, wherein, The visual assembly (20) further comprises a light-transmitting lens, and the light-transmitting lens is arranged in the first through hole (111).

9. The puncture needle of any one of claims 1-7, wherein, The material of the soft rod is low-hardness stainless steel.

10. A surgical device, characterized by The surgical robot sliding table (1), the puncture cannula (2) and the puncture needle according to any one of claims 1-9 are connected, and the puncture cannula (2) is arranged outside the puncture needle.

Images