TWI583411B - Ultrasound probe with the functions of guiding and puncturing - Google Patents

Description

Ultrasonic probe with puncture guidance function

The present invention relates to an ultrasonic probe, and more particularly to an ultrasonic imaging system in which an ultrasonic probe is provided with a recess for separating or engaging a side of an object and an application thereof.

In many clinical treatment operations, it is necessary to use a needle tube to be inserted by in vitro. However, due to the complex structure of the body, puncture of certain specific parts may be accompanied by a certain degree of difficulty and risk of implementation. Taking clinical anesthesia as an example, current anesthesia can be divided into spinal anesthesia and epidural anesthesia. Among them, it is technically difficult to perform an epidural anesthesia, and this epidural anesthesia technique is often used for painless delivery or postoperative analgesia.

Epidural Anesthesia is a method of injecting a local anesthetic into the epidural space (ES) to temporarily block the neural network to achieve the desired anesthetic effect. This technique relies heavily on the experience and feel of the operator (such as an anesthesiologist). When the operation is performed, the puncture needle will be inserted into the body from the target area of the back surgery, and after a few centimeters of blind puncture path, it is necessary to accurately penetrate the width of only 2~7mm. In the epidural space, the catheter is placed in the epidural space along the path of the epidural needle, which removes the epidural needle and continues to deliver an anesthetic through the catheter. However, there is currently no clear and objective way to determine where the spinal epidural needle is arriving. Therefore, there is still a risk of deep penetration in the clinic and the risk of puncturing the Dura puncture, causing complications such as headache and leakage of the spinal fluid, or failure of the anesthesia operation due to a mistake in the puncture site.

As mentioned above, most of the traditional methods of identification rely mainly on anesthesiologists for many years. The post-training feel and subjective judgments increase the risk of anesthesia for more complex patients. In order to avoid the risk of puncture failure, a number of detection and positioning technologies such as pressure, electricity, optics, etc. have been developed, but these methods are unable to provide forward-looking information to provide the positioning of anesthesia and For reference purposes. In addition, some physicians use ultrasound (B-mode) ultrasound to guide the extracorporeal needle to penetrate the epidural space; however, it is still subject to tissue complexity during implementation. The impact, so this approach is still extremely difficult.

In addition, taking fracture surgery as an example, the traditional bone plate fixation system must be directly The patient's skin is cut open and placed in the bone plate, which can cause a large area of wounds, which can cause considerable pain to the patient after surgery. In recent years, minimally invasive surgery is an increasingly important concept of surgery. It can be used in orthopedic surgery to improve the infection, poor healing and delayed healing caused by traditional open reduction and internal fixation (ORIF). When performing minimally invasive surgery for internal fixation of the fracture, surgery is performed only by a few tiny wounds, which not only reduces the damage and bleeding of the surrounding tissues of the affected area, but also reduces the pain of the patient and avoids destroying the blood supply to the fracture site. Speed up recovery and reduce hospital stay. Moreover, because the wound is small after surgery, it will feel more beautiful after healing.

However, in minimally invasive surgery or bone plate fixation, it is necessary to rely on good medical image assistance because of the limited field of view. Furthermore, in the implementation of the fracture surgery, the bone nail is directly locked into the threaded hole of the bone plate to fix the affected part, but how to confirm the position of the threaded hole of the bone plate is a clinically necessary problem to be overcome.

In view of the above, the present invention provides an ultrasonic probe that enhances the accurate positioning of a method performed by a patient on a target area during his or her surgical operation. The ultrasonic probe includes at least a body and a latching member, the body having an ultrasonic transducer with one end contacting the skin of the patient, and one side having a recess extending from one end of the skin contacting the patient groove. The engaging member is disposed adjacent to the groove of the body, so that a side of the object is separated or engaged in the groove, and the engaging member is located at a first position and a second position with respect to the groove; When the engaging member is in the first position relative to the groove, the object is engaged in the groove, and conversely, when the engaging member is in the second position relative to the groove, the object can be separated from the side of the body.

In a preferred embodiment of the invention, the article is a puncture needle. Preferably, the puncture needle is a hollow structure and can accommodate an ultrasonic probe inserted therein to detect the distance between the needle tip and the target area.

In a preferred embodiment of the invention, the article is a bone nail.

In a preferred embodiment of the present invention, the ultrasonic scanning device defines a first ultrasonic emission region and a second ultrasonic emission region by the groove. Preferably, the first ultrasonic emission region or the second ultrasonic emission region is adjustable to an ultrasonic scanning angle.

In a preferred embodiment of the invention, the angle is 0-20 degrees. Preferably, the above angle is 5-10 degrees.

In a preferred embodiment of the invention, the engaging member is a rotary switch or a latch.

The features of the present invention and its advantages will be further understood from the following description. For reference, please refer to the first to fifth figures.

100‧‧‧Ultrasonic probe

10‧‧‧ Ontology

11‧‧‧ Groove

12‧‧‧Ultrasonic transmitting/receiving area

20‧‧‧Cards

30‧‧‧Puncture needle

40‧‧‧ bone plate

S‧‧‧ skin

T‧‧‧Target area

B‧‧‧ bones

D ₁ ‧‧‧The direction of the groove

D ₂ ‧‧‧ scanning direction of ultrasonic probe

The first figure shows a schematic structural view of a ultrasonic probe according to a preferred embodiment of the present invention; and the second figure shows a schematic structural view of the ultrasonic probe according to an embodiment of the present invention when the engaging member is in the first position relative to the body; FIG. 3 to FIG. 3B are schematic diagrams showing the structure of the engaging member when the engaging member is in the second position with respect to the body according to an embodiment of the present invention; and FIGS. 4A to 4D are diagrams showing the multi-angle scanning imaging image according to an embodiment of the present invention. And the fifth figure shows an operation diagram of confirming the position of the threaded hole of the bone plate through the groove of the body in another embodiment of the present invention.

In view of the above, the present invention provides an ultrasonic probe 100 having a structure as shown in the first figure, which enhances the positioning effect of the means performed on a target area T of a patient.

The ultrasonic probe 100 includes at least a body 10 and a latching member 20. its The body 10 has an ultrasonic transducer with one end contacting the skin S of the patient and a groove 11 formed on one side thereof. In a preferred embodiment, a groove 11 is formed on a side adjacent to the end of the body of the ultrasonic probe 100 that is in contact with the end of the patient's skin S. Preferably, the groove 11 is disposed in the middle of the side surface. However, the invention is not intended to be limited thereto. Furthermore, the recess 11 preferably has an elongated opening and is extended by the body 10 contacting the one end of the patient's skin S to have an extending direction D1.

In addition, the ultrasonic probe 100 provided by the present invention further includes two ultrasonic waves. The imaging area 12 is disposed at the end of the body 10 contacting the patient's skin S with the groove 11 as a boundary, and the ultrasonic emission area 12 can be adjusted to an ultrasonic incident angle to cooperate with the ultrasonic scanning device for multiple angles. The scanning method further reduces the visual dead angle. In the preferred embodiment, body 10 is a B-mode ultrasonic probe.

The engaging member 20 is disposed adjacent to the recess 11 of the body 10 to obtain an object (not shown). It can be side separated or snapped into the groove 11. The object may preferably be a puncture needle, but the invention is not limited thereto. Furthermore, the engaging member 20 can be a rotary switch or a cassette.

Next, take epidural anesthesia as an example (ie, the object is a puncture needle) The following instructions are given. First, the operator can attach the body 10 of the ultrasonic probe 100 to the surface of the skin S, and obtain the position of the target region T (ie, the epidural space) by the ultrasonic image, and align the center with the epidural space. The cavity is such that the two layers of ultrasonic reflection signals (ie, the Ligamentum Flavum (LF) and the Dura mater (DM) are present in the middle of the ultrasound image. In this way, the depth of the epidural space can be measured and the orientation of the puncture can be aimed as a puncture path plan.

Next, please refer to the second to third B drawings, and the second figure shows an implementation of the present invention. In the example, the snap member 20 is in a first position with respect to the body 10 and the structure of the puncture needle 30. The third through third panels B show that the latch member 20 is in the second position relative to the body 10 in an embodiment of the invention. The schematic diagram of the structure of the puncture needle 30. In detail, the engaging member 20 is located at a first position and a second position with respect to the recess 11. Wherein, as shown in the second figure, when the engaging member 20 is in the first position relative to the groove 11, that is, the engaging member 20 of the rotary switch is rotated toward the groove 11 to cause the puncture needle 30 to pass through. The engaging member 20 is engaged in the groove 11 and can be The engagement member 20 is adjusted to change the distance of the needle tip 30 from the target region T (i.e., the epidural space). Then, as shown in the third A to BB, when the needle tip of the puncture needle 30 reaches the depth of the predetermined puncture, the engaging member 20 can be positioned in the second position relative to the groove 11, and the puncture needle 30 can be borrowed. The groove 11 disposed on the side of the ultrasonic probe body 10 is completely separated from the ultrasonic probe 100 via the lateral direction (as shown in FIG. 3B), so that the surgeon can perform the subsequent more precise puncture with the puncture needle alone.

Furthermore, in the preferred embodiment, the puncture needle 30 is a hollow structure, and An ultrasonic probe can be accommodated in it. At this time, it is possible to further utilize the ultrasonic reflection signals for the Ligamentum Flavum (LF) and the Dura mater (DM), and detect it in advance 4 to 5 mm before the puncture needle 30 reaches the epidural space. Come out, let the surgeon know the distance of the epidural space, and then actively adjust the force of the puncture, carefully puncture, avoid piercing the dura mater, and reduce the risk of surgical failure.

Since the ultrasonic probe is designed in the structure of a groove 11, a blind zone is generated on the image, and the ultrasonic wave transmitting/receiving area and the second ultrasonic wave transmitting/receiving area 12 are modulated by an ultrasonic scanning angle. The ultrasonic signal in section 12 will determine the size of the blind spot in the scan range. Referring to the fourth to fourth D, a multi-angle scanning imaging image in an embodiment of the present invention is shown; in an embodiment, the first ultrasonic emission region and the second ultrasonic emission region 12 have a plurality of ultrasonic emission end points. By means of the different transmission timings of the endpoints, the ultrasonic scanning angles of the sections 12 can be adjusted to be combined with a depth focusing plane. As shown in FIG. 4A, the ultrasonic emission areas 12 are modulated. An ultrasonic image with an angle of 0 degree is scanned in an ultrasonic wave; as shown in FIG. 4B, the ultrasonic imaging region 12 is modulated with an ultrasonic image having an ultrasonic angle of 5 degrees; for example, the fourth C As shown, the ultrasonic imaging regions 12 are modulated with an ultrasonic image having an ultrasonic scanning angle of 10 degrees; as shown in the fourth D, the ultrasonic emission regions 12 are modulated at an ultrasonic scanning angle. For the 15 degree ultrasonic image, the invention is not limited thereto.

However, when adjusting the angle of incidence of the ultrasonic waves of the sections 12, although the scanning area is larger, the blind area range can be reduced, but the depth of the focusing plane is also limited; in an embodiment, the angles are 0-20. Degree, its focal plane depth is suitable for the operation of subcutaneous tissue; for an epidural anesthesia, the optimal angle is 5-10 degree.

The ultrasonic probe provided by the present invention is not limited to application to epidural anesthesia, and can also be applied to the aforementioned fracture surgery. Referring to the fifth figure, in another embodiment of the present invention, an operation diagram of confirming the position of the threaded hole of the bone plate 40 via the groove of the body is shown. First, the area where the bone is damaged (for example, broken or broken) is confirmed, and the implanted bone plate 40 is parallel to the bone B; further, the body 10 of the ultrasonic probe 100 is attached to the portion where the bone plate 40 is implanted. On the skin S, due to the barrier of the distance between the bone plate 40 and the skin S, ultrasonic scanning is performed in a direction D ₂ to confirm the position of the threaded hole of the bone plate 40; then, the positioning pin of the bone pin is along the extending direction of the groove D. ₁ piercing, the relative position of the bone plate 40 and the skin S is marked, and the bone nail is further locked to the bone B to reduce the wound area.

In summary, the present invention aims to solve the difficulty of spinal tissue puncture and provides Ultrasound-assisted puncture guidance technology to improve the success rate of clinical surgery and the efficiency of operation, and reduce the risk of operational failure. Taking the epidural puncture as an example, it can be summarized as a two-stage difficulty: (1) the difficulty of puncture path planning, and (2) the difficulty of early alert and immediate detection. Therefore, the present invention provides an ultrasonic probe which, together with the ultrasonic scanning device and the instant image display system, can accurately plan the puncture path by multi-angle scanning. Furthermore, a groove is formed on the side of the probe body to pass the puncture needle through the groove, so that the other ultrasonic probe can be combined to realize the instant detection function. Finally, the puncture needle and the ultrasonic probe can be separated by lateral disengagement to avoid interference of the probe to subsequent operations.

The above detailed description is specific to one of the possible embodiments of the present invention, The present invention is not intended to limit the scope of the invention, and equivalents and modifications may be included in the scope of the invention.

100‧‧‧Ultrasonic probe

10‧‧‧ Ontology

11‧‧‧ Groove

12‧‧‧Ultrasonic transmitting/receiving area

20‧‧‧Cards

S‧‧‧ skin

T‧‧‧Target area

D ₁ ‧‧‧The direction of the groove

Claims (8)

An ultrasonic probe for enhancing the accurate positioning of a means on a target area of a patient, comprising at least: a body having an ultrasonic transducer with one end contacting the skin of the patient, the body a groove is formed on one side, and the groove is extended by the one end which can contact the skin of the patient; and a engaging member is disposed adjacent to the groove of the body, so that an object can be laterally separated or Engaged in the groove, and the engaging member is located at a first position and a second position with respect to the groove; wherein the ultrasonic transducer is bounded by the groove to distinguish a first An ultrasonic transmitting/receiving area and a second ultrasonic transmitting/receiving area, and when the engaging member is in the first position relative to the groove, the object is engaged in the groove, and vice versa When the engaging member is in the second position relative to the groove, the object can be separated from the side of the body, wherein. The ultrasonic probe of claim 1, wherein the object is a puncture needle. The ultrasonic probe of claim 2, wherein the puncture needle is a hollow structure, and an ultrasonic probe can be accommodated therein to detect the distance between the needle tip and the target area. The ultrasonic probe according to claim 1, wherein the object is a bone positioning needle. The ultrasonic probe according to claim 1, wherein the first ultrasonic transmitting/receiving area or the second ultrasonic transmitting/receiving area is adjustable to an ultrasonic transmitting/receiving scanning angle. The ultrasonic probe of claim 5, wherein the angles are 0-20 degrees. The ultrasonic probe of claim 6, wherein the angles are 5-10 degrees. The ultrasonic probe according to claim 1, wherein the engaging member is a rotary switch or a latch.