Puncture needle and surgical device

Abstract

The invention belongs to the technical field of medical instruments, and discloses a puncture needle and a surgical device. The puncture needle comprises a needle head, a visual assembly, a needle rod and a pressure sensor, the needle head extends in the first direction and comprises a tip and a first connecting end, a first through hole is formed in the peripheral side of the tip, the central axis of the first through hole extends in the first direction, a cavity is formed in the needle head, and the first through hole is communicated with the cavity; the visual assembly comprises a micro camera, and the micro camera is arranged in the first through hole and the cavity and shoots an image of the needle head through the first through hole; the needle rod extends in the first direction and comprises a second connecting end, the second connecting end is connected with the first connecting end, and the needle rod is hollow; the pressure sensor is arranged in the needle rod, the position, corresponding to the pressure sensor, of the needle rod is a flexible rod, and the pressure sensor is used for detecting pressure generated when the needle head makes contact with human tissue. The pressure sensor detects the contact pressure of the needle head and the human tissue, and the safety and accuracy of the operation are improved in combination with a shot image.

Description

Technical Field

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

[0002] In minimally invasive surgery, the puncture needle is one of the tools commonly used by doctors. It is used to make a hole in the patient's abdomen so that surgical instruments can enter the abdominal cavity. However, traditional puncture needles cannot provide real-time visual information. It is difficult for doctors to accurately judge the position of the needle during the puncture process, especially when approaching internal organs, which can easily cause accidental damage to internal organs.

[0003] In the existing technology, some puncture needles have integrated optical fibers or micro cameras to provide real-time video through image transmission technology to help doctors better judge the position of the needle. However, when using image transmission technology to assist doctors in surgery, there may be situations where doctors may misjudge the image and accidentally injure internal organs, so puncture surgery still has risks. Summary of the invention

[0004] The purpose of the present invention is to provide a puncture needle and a surgical device to solve the problem in the prior art that doctors may misjudge images and thus accidentally injure internal organs, thereby improving the safety and accuracy of the operation.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In one aspect, a puncture needle is provided, comprising:

[0007] A needle, the needle extending in a first direction, comprising a tip and a first connection end, a first through hole being arranged around the tip, a central axis of the first through hole extending in the first direction, a cavity being arranged inside the needle, and the first through hole being communicated with the cavity;

[0008] A visual component, the visual component comprising a micro camera, the micro camera is placed in the first through hole and the cavity and takes an image of the needle tip through the first through hole;

[0009] A needle bar, the needle bar extends along the first direction, comprises a second connecting end, the second connecting end is connected to the first connecting end, and the interior of the needle bar is hollow;

[0010] A pressure sensor is placed inside the needle rod, the needle rod at a position corresponding to the pressure sensor is a soft rod, and the pressure sensor is used to detect the pressure generated by the contact between the needle and human tissue.

[0011] As an optional technical solution for the puncture needle, the visual component also includes a male plug, the miniature camera is connected to the male plug, the male plug is placed in the cavity and passes through the first connecting end, and the pressure sensor is provided with a female plug at one end close to the needle, and the male plug is plugged into the female plug to electrically connect the visual component to the pressure sensor.

[0012] As an optional technical solution for the puncture needle, the puncture needle also includes a signal transmission component, which is arranged in the needle rod and includes a soft flat cable and a main control board. The needle rod includes a third connection end, and the main control board is arranged close to the third connection end. One end of the soft flat cable is electrically connected to the pressure sensor, and the other end is electrically connected to the main control board.

[0013] As an optional technical solution for the puncture needle, the signal transmission component also includes 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 are both arranged on the main control board. The antenna is arranged on the main control board and extends along the first direction. The free end of the antenna faces the third connection end.

[0014] As an optional technical solution for the puncture needle, the puncture needle also includes a needle cap, which includes an open end and a closed end, the open end is connected to the third connecting end, the closed end is provided with an insulating cover, and the antenna points to the insulating cover.

[0015] As an optional technical solution for the puncture needle, the puncture needle also includes a power component, and the power component includes a battery. The battery is arranged in the needle rod and is electrically connected to the pressure sensor and the visual component.

[0016] As an optional technical solution for the puncture needle, the power component also includes a spiral coil, the soft flat cable is wrapped around the outside of the battery, and the spiral coil is arranged inside the soft flat cable to wirelessly charge the battery.

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

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

[0019] On the other hand, a surgical device is provided, comprising a surgical robot slide, a puncture cannula and the above-mentioned puncture needle, wherein the puncture cannula is connected to the surgical robot slide and is sleeved on the outside of the puncture needle.

[0020] Beneficial effects of the present invention:

[0021] The present application discloses a puncture needle and a surgical device. The puncture needle includes a needle head, a visual component, a needle rod and a pressure sensor. The needle head extends in a first direction and includes a tip and a first connecting end. A first through hole is arranged around the tip. The central axis of the first through hole extends in the first direction. A cavity is arranged inside the needle head. The first through hole is connected to the cavity. The visual component includes a micro camera. The micro camera is placed in the first through hole and the cavity and takes an image at the needle head through the first through hole. The needle rod extends in the first direction and includes a second connecting end. The second connecting end is connected to the first connecting end. The needle rod is hollow inside. The pressure sensor is placed in the needle rod. The needle rod at the position corresponding to the pressure sensor is a soft rod. The pressure sensor is used to detect the pressure generated by the contact between the needle head and the human tissue. The needle rod at the position corresponding to the pressure sensor is a soft rod, which improves the sensitivity and accuracy of the pressure sensor. The pressure generated by the contact between the needle head and the human tissue is detected by the pressure sensor, which assists the image taken at the needle head to avoid accidental injury to internal organs and improve the safety and accuracy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 is a partial structural schematic diagram of a surgical device provided by an embodiment of the present invention;

[0024] Figure 2 is an axonometric diagram of a puncture needle provided by an embodiment of the present invention;

[0025] Figure 3 This is one of the partial structural schematic diagrams of the puncture needle provided in the embodiment of the present invention;

[0026] Figure 4 This is the second schematic diagram of a partial structure of the puncture needle provided in an embodiment of the present invention;

[0027] Figure 5 This is the third schematic diagram of the partial structure of the puncture needle provided in the embodiment of the present invention.

[0028] In the figure:

[0029] 1. Surgical robot slide; 2. Puncture cannula;

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

[0031] 20. Visual component; 21. Micro camera; 22. Male plug;

[0032] 30. Pressure sensor;

[0033] 40. Signal transmission component; 41. Soft flat cable; 42. Main control board; 43. Main control chip; 44. Analog-to-digital conversion chip; 45. Antenna;

[0034] 50.Battery. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] In the existing technology, some puncture needles have integrated optical fibers or micro cameras to provide real-time video through image transmission technology to help doctors better judge the position of the needle. However, when using image transmission technology to assist doctors in surgery, there may be situations where doctors may misjudge the image and accidentally injure internal organs, so puncture surgery still has risks.

[0040] To solve the above problems, this embodiment provides a surgical device. Figure 1 , including a surgical robot slide 1, a puncture cannula 2 and a puncture needle 10. The puncture cannula 2 is connected to the surgical robot slide 1 and is sleeved on the outside of the puncture needle 10. When using the surgical device, the surgical robot slide 1 drives the puncture cannula 2 and the puncture needle 10 to approach the patient's abdomen or other parts and puncture. After puncturing the patient's epidermis, the puncture needle 10 is removed to facilitate other surgical instruments to enter the patient's abdomen through the puncture cannula 2.

[0041] Specifically, see Figure 2-Figure 4 The puncture needle 10 includes a needle 11, a visual component 20, a needle rod 12 and a pressure sensor 30; the needle 11 extends along a first direction, includes a tip and a first connecting end, a first through hole 111 is arranged around the tip, the first through hole 111 is a countersunk hole to prevent the edge of the first through hole 111 from damaging the patient's skin, the central axis of the first through hole 111 extends along the first direction, a cavity is arranged inside the needle 11, and the first through hole 111 is connected to the cavity; in this embodiment, the needle 11 adopts ultra-high hardness austenitic stainless steel, such as 416 stainless steel, which not only ensures the strength of the needle 11, but also has good corrosion resistance, and is suitable for use in a surgical environment.

[0042] The visual component 20 includes a micro camera 21, which is placed in the first through hole 111 and the cavity and takes an image of the needle 11 through the first through hole 111; specifically, the micro camera 21 has an integrated LED light, which can illuminate the patient's abdominal cavity and improve the clarity of the image taken by the micro camera 21 at the needle 11. Furthermore, the visual component 20 also includes 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 the physical damage to the micro camera 21 during the puncture process, and can prevent tissue fluid from entering the cavity to damage the micro camera 21, thereby ensuring the image quality and service life of the micro camera 21.

[0043] The needle rod 12 extends along the first direction, includes a second connecting end, the second connecting end is connected to the first connecting end, and the interior of the needle rod 12 is hollow; in this embodiment, the needle rod 12 is configured to be cylindrical and is made of metal material, the first connecting end is configured to be a convex shaft, the second connecting end is matched with the hole shaft of the first connecting end, and the second connecting end and the first connecting end are connected by low-temperature laser welding to avoid damage to the needle head 11 and the internal electrical components of the needle rod 12.

[0044] The pressure sensor 30 is placed inside the needle rod 12. The needle rod 12 at the position corresponding to the pressure sensor 30 is a soft rod. The pressure sensor 30 is used to detect the pressure generated by the contact between the needle head 11 and the human tissue. Specifically, the material of the soft rod is low-hardness stainless steel. In this embodiment, the low-hardness stainless steel can be thinned to increase the softness of the stainless steel, so that the force of the needle head 11 can be well transmitted to the pressure sensor 30, further improving the sensitivity of the pressure sensor 30. The pressure generated by the contact between the needle head 11 and the human tissue is detected by the pressure sensor 30, which assists the image taken at the needle head 11 to avoid accidental injury to internal organs and improve the safety and accuracy of the operation.

[0045] Furthermore, the visual component 20 also includes a male plug 22, the miniature camera 21 is connected to the male plug 22, the male plug 22 is placed in the cavity and passes through the first connection end, and the pressure sensor 30 is provided with a female plug at one end close to the needle 11, and the male plug 22 is plugged with the female plug to electrically connect the visual component 20 to the pressure sensor 30. Specifically, a plurality of pins are provided inside the male plug 22 to facilitate insertion into the female plug, so that the visual component 20 is electrically connected to the pressure sensor 30. In this embodiment, the cavity is set to a cylindrical cavity, and the male plug 22 is set to a cylindrical shape and fits with the inner wall of the cavity.

[0046] Further, see Figure 2-Figure 5 The puncture needle 10 also includes a signal transmission component 40, which is arranged in the needle rod 12 and includes a soft flat cable 41 and a main control board 42. The needle rod 12 includes a third connection end, and the main control board 42 is arranged near the third connection end. One end of the soft flat cable 41 is electrically connected to the pressure sensor 30, and the other end is electrically connected to the main control board 42. The soft flat cable 41 can transmit the electrical signals of the micro camera 21 and the pressure sensor 30 to the main control board 42. Specifically, a terminal is provided at one end of the soft flat cable 41 near the main control board 42, and the soft flat cable 41 is electrically connected to the main control board 42 through the terminal. In this embodiment, the soft flat cable 41 is arranged in a semi-arc shape and fits the inner wall of the needle rod 12, and the terminal is arranged in a semicircular shape.

[0047] Furthermore, the signal transmission component 40 also includes a main control chip 43, an analog-to-digital conversion chip 44 and an antenna 45. The main control chip 43 and the analog-to-digital conversion chip 44 are electrically connected and are both arranged on the main control board 42. The analog-to-digital conversion chip 44 converts the electrical signal received by the main control board 42 into a digital signal. The main control chip 43 sends the converted digital signal to the antenna 45. The antenna 45 is arranged on the main control board 42 and extends along the first direction. The free end of the antenna 45 faces the third connection end to send the digital signal to the host computer. In this embodiment, the communication between the main control chip 43 and the host computer includes but is not limited to 2.4GHz Wi-Fi and Bluetooth communication; these wireless communication methods can ensure efficient data transmission between the puncture needle 10 and the host computer.

[0048] Furthermore, the puncture needle 10 also includes a needle cap 13, which includes an open end and a closed end, the open end is connected to the third connection end, 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 disc structure, the insulating cover 131 is provided at the geometric center of the closed end, and the antenna 45 points to the insulating cover 131, so that signal transmission and reception can be realized. In this embodiment, the needle cap 13 is made of metal material, the open end is provided as a convex shaft, the third connection end cooperates with the hole shaft of the open end, and the third connection end and the open end are connected by low-temperature laser welding to avoid damage to the electrical components inside the needle rod 12.

[0049] Furthermore, the puncture needle 10 also includes a power component, which includes a battery 50. The battery 50 is disposed in the needle rod 12 and is electrically connected to the pressure sensor 30 and the visual component 20. In this embodiment, the power component also includes a spiral coil, and the soft flat cable 41 is wrapped around the outside of the battery 50. The spiral coil is disposed inside the soft flat cable 41 to wirelessly charge the battery 50. Specifically, the battery 50 is a graphene battery, which not only has a large capacity, but also has the advantages of fast charging and long life, ensuring that the puncture needle 10 can continue to work stably during the operation. In this embodiment, two batteries 50 are arranged at intervals along the extension direction of the needle rod 12.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A puncture needle, characterized in that: include: A needle (11), the needle (11) extending in a first direction, comprising a tip and a first connection end, a first through hole (111) being arranged around the tip, a central axis of the first through hole (111) extending in the first direction, a cavity being arranged inside the needle (11), and the first through hole (111) being connected to the cavity; A visual component (20), the visual component (20) comprising a micro camera (21), the micro camera (21) being disposed in the first through hole (111) and the cavity and capturing an image of the needle tip (11) through the first through hole (111); A needle rod (12), the needle rod (12) extending along the first direction, comprising a second connecting end, the second connecting end being connected to the first connecting end, and the interior of the needle rod (12) being hollow; A pressure sensor (30), wherein the pressure sensor (30) is disposed inside the needle rod (12), the needle rod (12) at a position corresponding to the pressure sensor (30) being a flexible rod, and the pressure sensor (30) being used to detect the pressure generated by the contact between the needle head (11) and human tissue.

2. The puncture needle according to claim 1, characterized in that: The visual component (20) further comprises a male plug (22), the miniature camera (21) and the male plug (22) are connected, the male plug (22) is placed in the cavity and passes through the first connection end, and a female plug is provided at one end of the pressure sensor (30) close to the needle (11), and the male plug (22) is plugged into the female plug to electrically connect the visual component (20) to the pressure sensor (30).

3. The puncture needle according to claim 2, characterized in that: The puncture needle also includes a signal transmission component (40), which is arranged in the needle rod (12) and includes a flexible flat cable (41) and a main control board (42). The needle rod (12) includes a third connection end, and the main control board (42) is arranged near the third connection end. One end of the flexible flat cable (41) is electrically connected to the pressure sensor (30), and the other end is electrically connected to the main control board (42).

4. The puncture needle according to claim 3, characterized in that: The signal transmission component (40) further comprises a main control chip (43), an analog-to-digital conversion chip (44) and an antenna (45); the main control chip (43) and the analog-to-digital conversion chip (44) are electrically connected and are both arranged on the main control board (42); the antenna (45) is arranged on the main control board (42) and extends along the first direction; the free end of the antenna (45) faces the third connection end.

5. The puncture needle according to claim 4, characterized in that: The puncture needle also includes a needle cap (13), the needle cap (13) includes an open end and a closed end, the open end is connected to the third connection 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 according to claim 3, characterized in that: The puncture needle also includes a power component, which includes a battery (50). The battery (50) is arranged in the needle rod (12) and is electrically connected to the pressure sensor (30) and the visual component (20).

7. The puncture needle according to claim 6, characterized in that: The power component further comprises a spiral coil, the flexible flat cable (41) is wrapped around the outside of 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 according to any one of claims 1 to 7, characterized in that: The visual component (20) further comprises a light-transmitting lens, wherein the light-transmitting lens is arranged in the first through hole (111).

9. The puncture needle according to any one of claims 1 to 7, characterized in that: The material of the soft rod is low-hardness stainless steel.

10. A surgical device, characterized in that: It comprises a surgical robot slide (1), a puncture sleeve (2) and a puncture needle according to any one of claims 1 to 9, wherein the puncture sleeve (2) is connected to the surgical robot slide (1) and is sleeved on the outside of the puncture needle.

Images