A handheld ultrasound puncture device

Abstract

This invention relates to the field of medical device technology, and more particularly to a puncture device for handheld ultrasound, comprising: a puncture support, a puncture plate, and a puncture needle assembly; the puncture support is sleeved on the handheld ultrasound probe, and the puncture plate is detachably connected to the side wall of the puncture support; the puncture needle assembly is disposed within the puncture plate, and is slidably connected to the side wall of the puncture plate, so that the puncture direction of the other end can be adjusted by changing the position of one end of the puncture needle assembly; the puncture needle assembly includes a fixed sleeve and a puncture needle rod, the puncture needle rod being rotatably connected to the side wall of the fixed sleeve; a puncture needle groove is provided on the side wall of the puncture needle rod for guiding the puncture needle through; a first opening is provided on the side wall of the fixed sleeve, and when the puncture needle groove corresponds to the first opening, the puncture needle can pass through the fixed sleeve to achieve puncture, and can be removed through the first opening. Thus, when replacing the puncture needle, there is no need to disassemble and reassemble the puncture needle groove, making the device convenient and efficient to use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a handheld ultrasound puncture device. Background Technology

[0002] The advent of the handheld ultrasound device has ushered in a new era of portable ultrasound. Since 2012, handheld ultrasound has gradually emerged in China, with more than ten models of handheld color Doppler ultrasound devices now available and enjoying a high reputation both domestically and internationally. Due to its portability, mobility, and high-end features, the handheld ultrasound device has been widely used in ultrasound departments and other clinical departments. Ultrasound technology is rapidly gaining traction, from internal medicine to surgery, from auxiliary departments to clinical departments, and from superficial organs to deep organs, becoming, like a stethoscope, the "third eye" for clinicians.

[0003] In the pre-hospital treatment stage, handheld ultrasound has a diagnostic accuracy rate of 97-100% for patients with ruptured abdominal organs and hemothorax. It can also guide diagnostic thoracentesis and laparotomy for unexplained effusions. For patients with ruptured hearts, handheld ultrasound can clearly identify the presence of blood or fluid in the pericardial cavity. When ultrasound indicates moderate to large amounts of blood in the pericardial cavity, a puncture needle can be inserted through the chest wall under handheld ultrasound guidance to reach the pericardial cavity in real time for decompression and to maintain a certain pressure, thus gaining valuable time for surgical repair and saving the patient's life. For some patients with hemorrhagic shock, the primary task is to quickly establish intravenous access to replenish blood volume and maintain vital signs. However, due to hypotension caused by hemorrhagic loss, the blood vessels in these patients are often collapsed, making it difficult for rescuers to establish rapid intravenous access immediately. If handheld ultrasound can be used under stent guidance, this problem can be solved quickly and accurately, saving precious time for the patient.

[0004] Currently, in the pre-hospital treatment phase, emergency personnel mainly use handheld ultrasound to locate the target on the body surface and then perform blind puncture, or perform manual puncture under the visual guidance of handheld ultrasound. However, blind puncture may increase the rate of damage to intercostal vessels or intestines, worsening the injury. While manual puncture can avoid intercostal vessels or intestines, it requires a certain amount of training and practical experience with multiple cases to achieve accurate target puncture in a short time. However, most pre-hospital treatment personnel have only received basic ultrasound image recognition training, and ultrasound-guided manual puncture often cannot accurately reach the target in a short time, thus delaying patient treatment to some extent and even increasing the mortality rate for some patients. Currently, handheld ultrasound does not have an integrated in-plane and out-of-plane puncture frame, which limits its practical clinical application. Summary of the Invention

[0005] The purpose of this invention is to solve at least one of the problems in the background art described above, and to provide a handheld ultrasound puncture device.

[0006] To achieve the above objectives, the present invention provides a handheld ultrasound puncture device, comprising:

[0007] Puncture stent, puncture plate and puncture needle assembly;

[0008] The puncture bracket is fitted onto the palm ultrasound probe, and the puncture plate is detachably connected to the side wall of the puncture bracket.

[0009] The puncture needle assembly is disposed inside the puncture plate, and both ends of the puncture needle assembly can protrude from the puncture plate. The puncture needle assembly is slidably connected to the side wall of the puncture plate so as to adjust the puncture direction of the other end by changing the position of one end of the puncture needle assembly.

[0010] The puncture needle assembly includes a fixed sleeve and a puncture needle rod. The side wall of the fixed sleeve is slidably connected to the puncture plate, and the puncture needle rod is inserted into the fixed sleeve and rotatably connected to the side wall of the fixed sleeve.

[0011] The puncture needle shaft has multiple axially arranged puncture needle grooves on its side wall. The puncture needle grooves are used to guide the puncture needle through, and the multiple puncture needle grooves have different diameters.

[0012] The fixed sleeve has an axially arranged first opening on its side wall, which passes through both ends of the fixed sleeve and the side wall respectively.

[0013] When the puncture needle groove corresponds to the first opening, the puncture needle can pass through one end of the fixed sleeve, the puncture needle groove, and the other end of the fixed sleeve in sequence to puncture, and the puncture needle can be moved out through the first opening.

[0014] Preferably, the puncture needle assembly further includes a limiting sleeve;

[0015] The limiting sleeve is located inside the fixed sleeve and is sleeved on the puncture needle rod. The limiting sleeve is rotatably connected to the fixed sleeve and the puncture needle rod.

[0016] A second opening is provided on the side wall of the limiting sleeve. The second opening passes through both ends of the limiting sleeve and the side wall respectively. When the second opening does not correspond to the first opening and the puncture needle groove corresponds to the first opening, the limiting sleeve can prevent the puncture needle from moving out of the puncture needle groove.

[0017] Preferably, a third opening is provided on the side wall of the fixed sleeve, the third opening penetrates the side wall of the fixed sleeve, and a portion of the side wall of the limiting sleeve is exposed through the third opening; the third opening is used to control the rotation of the limiting sleeve to adjust the position of the second opening on the limiting sleeve.

[0018] Preferably, the third opening is connected to the first opening.

[0019] Preferably, a lever is provided on the side wall of the limiting sleeve, and the length of the lever is equal to the length of the third opening;

[0020] The lever protrudes from the fixed sleeve through the third opening, and the lever is used to drive the limiting sleeve to rotate.

[0021] Preferably, the puncture plate is fan-shaped and has a hollow structure inside, allowing the fixing sleeve to pass through the hollow structure of the puncture plate;

[0022] A first fixing member, a second fixing member, and a sliding groove are provided on the side wall of the puncture plate;

[0023] The chute is located near the arc-shaped end of the puncture plate, and the first fixing member is located inside the chute and can move along the chute.

[0024] The second fixing member is located at the opposite end of the arc-shaped end of the puncture plate, and the second fixing member is capable of rotation.

[0025] When the fixing sleeve is located in the hollow structure, the first fixing member and the second fixing member are used to fix and connect with the fixing sleeve.

[0026] Preferably, a guide cap is provided at one end of the puncture needle shaft, and the side wall of the guide cap has a plurality of guide grooves, which are respectively provided in correspondence with the plurality of puncture needle grooves;

[0027] When the puncture needle rod is located inside the puncture plate, the guide cap is located outside the puncture plate, and the guide cap is positioned close to the arc-shaped edge of the puncture plate.

[0028] Preferably, a protrusion is provided on the top plane of the fixed sleeve, and a plurality of limiting grooves are provided on the guide cover;

[0029] The protrusion is disposed opposite to the first opening, the limiting groove is disposed opposite to the guide groove, and the plurality of limiting grooves are equal in circumferential length to the protrusion;

[0030] When the protrusion is located in the limiting groove, the displacement of the puncture needle rod is restricted.

[0031] Preferably, the width of the first opening is greater than the width of the widest puncture needle groove;

[0032] The second opening has the same width as the first opening.

[0033] Preferably, a first installation position and a second installation position are respectively provided on two adjacent sidewalls of the puncture bracket. When the puncture plate is located in the first installation position, the puncture plate is in the short axis direction of the palm ultrasound probe. When the puncture plate is located in the second installation position, the puncture plate is in the long axis direction of the palm ultrasound probe.

[0034] Based on this, the beneficial effects of the present invention are as follows:

[0035] 1. According to the present invention, the puncture needle assembly includes a fixed sleeve and a puncture needle rod. The puncture needle rod is located inside the fixed sleeve and can rotate relative to the fixed sleeve. The puncture needle rod has multiple puncture needle grooves of different diameters, which can be used for puncture needles of different diameters. The fixed sleeve is provided with a first opening, which allows the puncture needle to be inserted from one end and extended from the other end. When the puncture needle groove corresponds to the first opening, the puncture needle can be used and the puncture needle can be replaced.

[0036] By rotating the puncture needle rod, the puncture needle grooves of different diameters on the puncture needle rod correspond to the first opening, which can accommodate the use of puncture needles of different diameters, making the device efficient and convenient to use.

[0037] 2. According to the solution of the present invention, the puncture needle assembly further includes a limiting sleeve, which is sleeved on the puncture needle rod and located in the fixed sleeve together with the puncture needle rod. The limiting sleeve is provided with a second opening. When the second opening corresponds to the first opening, the puncture needle can be taken out from the puncture needle groove through the second opening and the first opening to achieve separation. When the second opening does not correspond to the first opening and the puncture needle groove, the puncture needle can be prevented from moving out of the puncture needle groove.

[0038] 3. According to the solution of the present invention, the handheld ultrasound puncture device includes a puncture bracket, which is sleeved on the handheld ultrasound probe. A first installation position and a second installation position are provided on the puncture bracket. The first installation position is located at the short axis of the handheld ultrasound probe, and the second installation position is located at the long axis of the handheld ultrasound probe, so that the puncture bracket can simultaneously have out-of-plane and in-plane puncture functions. Attached Figure Description

[0039] Figure 1 A schematic diagram illustrating the structure of a handheld ultrasonic puncture device according to one embodiment of the present invention;

[0040] Figure 2This diagram illustrates the usage state of a puncture needle assembly according to one embodiment of the present invention.

[0041] Figure 3 This schematic diagram illustrates the structure of a fixing sleeve according to one embodiment of the present invention.

[0042] Figure 4 This schematic diagram illustrates the structure of a puncture needle shaft according to one embodiment of the present invention.

[0043] Figure 5 This schematic diagram illustrates the structure of a limiting sleeve according to one embodiment of the present invention.

[0044] Figure 6 This schematic diagram illustrates the structure of a puncture plate according to one embodiment of the present invention.

[0045] Figure 7 This schematic diagram illustrates the structure of a puncture stent according to one embodiment of the present invention.

[0046] Explanation of reference numerals in the attached drawings: puncture bracket 10, first mounting position 101, second mounting position 102, puncture plate 20, first fixing member 201, second fixing member 202, sliding groove 203, puncture needle assembly 30, fixing sleeve 301, first opening 3011, third opening 3012, protrusion 3013, puncture needle rod 302, puncture needle groove 3021, guide cover 3022, guide groove 30221, limiting groove 30222, limiting sleeve 303, second opening 3031, and paddle 3032. Detailed Implementation

[0047] The content of this application will now be discussed with reference to exemplary embodiments. It should be understood that the described embodiments are merely intended to enable those skilled in the art to better understand and thus implement the content of this application, and are not intended to imply any limitation on the scope of this application.

[0048] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment".

[0049] Figure 1 This schematic diagram illustrates the structure of a handheld ultrasonic puncture device according to one embodiment of the present invention. Figure 2 This diagram illustrates the usage state of a puncture needle assembly according to one embodiment of the present invention. Figure 3 This schematic diagram illustrates the structure of a fixing sleeve according to one embodiment of the present invention. Figure 4 This schematic diagram illustrates the structure of a puncture needle shaft according to one embodiment of the present invention, as shown below. Figure 1-4As shown, a handheld ultrasound puncture device of the present invention includes:

[0050] Puncture bracket 10, puncture plate 20 and puncture needle assembly 30;

[0051] The puncture stent 10 is fitted onto the palm ultrasound probe, and the puncture plate 20 is detachably connected to the side wall of the puncture stent 10.

[0052] The puncture needle assembly 30 is disposed inside the puncture plate 20. Both ends of the puncture needle assembly 30 can protrude from the puncture plate 20. The puncture needle assembly 30 is slidably connected to the side wall of the puncture plate 20 so that the puncture direction of the other end can be adjusted by changing the position of one end of the puncture needle assembly 30.

[0053] The puncture needle assembly 30 includes a fixed sleeve 301 and a puncture needle rod 302. The side wall of the fixed sleeve 301 is slidably connected to the puncture plate 20, and the puncture needle rod 302 is inserted into the fixed sleeve 301 and rotatably connected to the side wall of the fixed sleeve 301.

[0054] The puncture needle shaft 302 has multiple axially arranged puncture needle grooves 3021 on its side wall. The puncture needle grooves 3021 are used to guide the puncture needle through, and the multiple puncture needle grooves 3021 have different diameters.

[0055] The fixed sleeve 301 has an axially arranged first opening 3011 on its side wall, which penetrates both ends and the side wall of the fixed sleeve 301 respectively.

[0056] When the puncture needle groove 3021 corresponds to the first opening 3011, the puncture needle can pass through one end of the fixed sleeve 301, the puncture needle groove 3021, and the other end of the fixed sleeve 301 in sequence to perform puncture. By rotating the puncture needle rod 302, puncture needle grooves 3021 of different diameters can be selected to correspond with the first opening 3011.

[0057] Specifically, the puncture stent 10 is configured as a square frame structure, the size of which matches the handheld ultrasound probe. One side wall of the puncture stent 10 can be unfolded and can be closed and opened by means of buckles, etc., so that the handheld ultrasound probe can enter and leave the hollow area of ​​the puncture stent 10, thereby realizing the installation and removal of the handheld ultrasound probe.

[0058] The puncture plate 20 is configured as a fan-shaped structure with a hollow interior, allowing the puncture needle assembly 30 to be inserted. When the puncture needle assembly 30 is inserted into the puncture plate 20, both ends of the puncture needle assembly 30 are exposed outside the puncture plate 20.

[0059] The puncture needle assembly 30 is slidably connected to the side wall of the puncture plate 20. By controlling one end of the puncture needle assembly 30 to move along the puncture plate 20, the other end of the puncture needle assembly 30 can be angled to achieve puncture at various angles.

[0060] The puncture needle assembly 30 includes a fixed sleeve 301 and a puncture needle rod 302. The fixed sleeve 301 is cylindrical, and the puncture needle rod 302 is cylindrical. The top of the fixed sleeve 301 has an opening that can communicate with the outside, and the bottom is closed. When the puncture needle rod 302 is inserted into the fixed sleeve 301, it contacts the bottom of the fixed sleeve 301 and can be supported by the bottom of the fixed sleeve 301 to prevent the puncture needle rod 302 from falling off.

[0061] The puncture needle rod 302 is provided with multiple axially arranged puncture needle grooves 3021. The diameters of the multiple puncture needle grooves 3021 are different, so that the puncture needle rod 302 can guide puncture needles of different diameters.

[0062] A first opening 3011 is provided on the side wall of the fixed sleeve 301. The first opening 3011 penetrates the side wall of the fixed sleeve 301, so that the puncture needle groove 3021 can be exposed through the first opening 3011. At the same time, the first opening 3011 penetrates both ends of the fixed sleeve 301, so that the puncture needle can be inserted from one end of the fixed sleeve 301 through the first opening 3011, enter the puncture needle groove 3021 and be guided therein, and then pass out from the first opening 3011 at the other end of the fixed sleeve 301 to achieve puncture.

[0063] The puncture needle rod 302 can rotate within the fixed sleeve 301 along the side wall of the fixed sleeve 301, allowing the puncture needle grooves 3021 at different positions on the puncture needle rod 302 to correspond to the first opening 3011, thus guiding puncture needles of different sizes through and achieving "one rod for multiple uses". When there is no need to replace puncture needles of different diameters, the puncture needle grooves 3021 can also be disassembled and replaced, reducing the complexity of disassembly and assembly.

[0064] It should be noted that the opening width of the first opening 3011 is larger than the largest diameter among the multiple puncture needle grooves 3021, so that the puncture needle in any puncture needle groove 3021 can be taken out through the first opening 3011.

[0065] Furthermore, Figure 5 This schematic diagram illustrates the structure of a limiting sleeve according to one embodiment of the present invention, as shown below. Figure 2 , 5 As shown:

[0066] The puncture needle assembly 30 also includes a limiting sleeve 303;

[0067] The limiting sleeve 303 is located inside the fixed sleeve 301 and is sleeved on the puncture needle rod 302. The limiting sleeve 303 is rotatably connected to the fixed sleeve 301 and the puncture needle rod 302.

[0068] A second opening 3031 is provided on the limiting sleeve 303. The second opening 3031 penetrates both ends and the side wall of the limiting sleeve 303 respectively. When the second opening 3031 does not correspond to the first opening 3011, and the puncture needle groove 3021 corresponds to the first opening 3011, the limiting sleeve 303 can prevent the puncture needle from moving out of the puncture needle groove 3021.

[0069] Specifically, the limiting sleeve 303 is also configured as a cylindrical structure, which can be sleeved on the puncture needle rod 302 and can rotate relative to the puncture needle rod 302.

[0070] A second opening 3031 is provided on the limiting sleeve 303. The second opening 3031 penetrates the side wall of the limiting sleeve 303, allowing the puncture needle groove 3021 to be exposed in the second opening 3031. At the same time, the second opening 3031 penetrates both ends of the limiting sleeve 303. When the second opening 3031, the first opening 3011, and the puncture needle groove 3021 correspond, the puncture needle can be taken out from the puncture needle groove 3021 for replacement.

[0071] When in use, the limiting sleeve 303 needs to be rotated so that the second opening 3031 does not correspond to the puncture needle groove 3021. In this way, the puncture needle will not be taken out from the first opening 3011, thus affecting the puncture operation.

[0072] When the puncture needle needs to be replaced, rotate the limiting sleeve 303 so that the second opening 3031 corresponds to the first opening 3011, so that the puncture needle can be removed. At this time, rotate the puncture needle rod 302 until the appropriate puncture needle groove 3021 corresponds to the first opening 3011, put the replacement puncture needle back in, and then rotate the limiting sleeve 303 again to prevent the puncture needle from being removed.

[0073] It is important to ensure that the width of the second opening 3031 is equal to that of the first opening 3011, so that the puncture needle can be removed.

[0074] Furthermore, such as Figure 3 As shown, a third opening 3012 arranged circumferentially is also provided on the side wall of the fixed sleeve 301. The third opening 3012 penetrates the side wall of the fixed sleeve 301, and part of the side wall of the limiting sleeve 303 can be exposed in the third opening 3012.

[0075] The third opening 3012 controls the rotation of the limiting sleeve 303 to adjust the position of the second opening 3031 on the limiting sleeve 303.

[0076] Specifically, after the puncture needle assembly 30 is installed, the third opening 3012 can expose the side wall of the limiting sleeve 303. By manually rubbing the side wall of the limiting sleeve 303, the limiting sleeve 303 can be rotated, thus achieving the need to adjust the position of the second opening 3031.

[0077] Furthermore, in order to further facilitate the rotation of the limiting sleeve 303, a lever 3032 can be provided on the side wall of the limiting sleeve 303, the length of the lever 3032 being equal to the length of the third opening 3012;

[0078] The paddle 3032 can expose the fixed sleeve 301 through the third opening 3012, and the rotation of the limiting sleeve 303 can be controlled by moving the paddle 3032.

[0079] Meanwhile, based on this, since the limiting sleeve 303 has a lever 3032 on its side wall, the protruding lever 3032 will affect the installation of the limiting sleeve 303 during installation and will conflict with the side wall of the fixed sleeve 301. Therefore, it is necessary to increase the circumferential length of the third opening 3012 so that it can communicate with the first opening 3011. Thus, during installation, the limiting sleeve 303 is fitted onto the puncture needle rod 302, and the lever 3032 is aligned with the first opening 3011 so that the lever 3032 is located in the area of ​​the first opening 3011. At this time, the puncture needle rod 302 is inserted into the fixed sleeve 301. When the lever 3032 is in the position of the third opening 3012, the puncture needle rod 302 is rotated so that the lever 3032 falls into the area of ​​the third opening 3012, so that the lever 3032 is exposed in the fixed sleeve 301. Thus, the movement of the limiting sleeve 303 can be controlled by moving the lever 3032.

[0080] In addition, the axial length of the third opening 3012 can be set to be equal to the height of the lever 3032, or it can be set to be much greater than the height of the lever 3032, as long as the lever 3032 is exposed.

[0081] Furthermore, Figure 6 This schematic diagram illustrates the structure of a puncture plate according to one embodiment of the present invention, as shown below. Figure 7 As shown:

[0082] The puncture plate 20 is fan-shaped and has a hollow structure inside, allowing the fixing sleeve 301 to pass through the hollow structure of the puncture plate 20.

[0083] A first fixing member 201, a second fixing member 202, and a sliding groove 203 are provided on the side wall of the puncture plate 20;

[0084] The chute 203 is located near the arc-shaped end of the puncture plate 20, and the first fixing member 201 is located inside the chute 203. The first fixing member 201 can move along the chute 203.

[0085] The second fixing member 202 is located at the opposite end of the arc-shaped end of the piercing plate 20, and the second fixing member 202 is capable of rotation.

[0086] When the fixed sleeve 301 is in the hollow structure, the first fixing member 201 and the second fixing member 202 are used to fix and connect with the fixed sleeve 301.

[0087] Specifically, after the puncture needle assembly 30 is installed, it is inserted into the hollow structure inside the puncture plate 20 and fixed to the fixing sleeve 301 by the first fixing member 201 and the second fixing member 202, so that the puncture needle assembly 30 will not move or slip at will. At this time, by moving the first fixing member 201 along the slide groove 203, the position of one end of the puncture needle assembly 30 changes, while the other end of the puncture needle assembly 30 is fixed by the second fixing member 202 and can only rotate at a certain angle, thereby realizing the adjustment of the puncture angle of the puncture needle at that end of the puncture needle assembly 30.

[0088] The first fixing member 201 and the second fixing member 202 can be screws, and threaded holes are provided at corresponding positions on the side wall of the fixing sleeve 301. The two are fixedly connected by thread.

[0089] Furthermore, such as Figure 4 As shown, a guide cover 3022 is provided at one end of the puncture needle rod 302. The side wall of the guide cover 3022 has multiple guide grooves 30221, and the multiple guide grooves 30221 are provided in a one-to-one correspondence with the multiple puncture needle grooves 3021.

[0090] When the puncture needle 302 is inside the puncture plate 20, the guide cover 3022 is outside the puncture plate 20 and is positioned close to the arc-shaped edge of the puncture plate 20.

[0091] Specifically, the guide cover 3022 is hexagonal, and a guide groove 30221 is provided on the side of the hexagon. The guide groove 30221 corresponds to the puncture needle groove 3021. When the puncture needle rod 302 is inserted into the puncture plate 20, the puncture needle groove 3021 cannot be seen from the outside. The user can insert the puncture needle into the fixing sleeve 301 according to the guidance of the guide groove 30221 to complete the insertion of the puncture needle.

[0092] Furthermore, such as Figure 3 , 4 As shown, a protrusion 3013 is provided on the top plane of the fixed sleeve 301, and multiple limiting grooves 30222 are provided on the guide cover 3022;

[0093] The protrusion 3013 is arranged opposite to the first opening 3011, the limiting groove 30222 is arranged opposite to the guide groove 30221, and the circumferential length of the multiple limiting grooves 30222 and the protrusion 3013 is equal.

[0094] When the protrusion 3013 is located in the limiting groove 30222, the displacement of the puncture needle rod 302 is restricted.

[0095] Specifically, the limiting groove 30222 is arranged opposite to the guide groove 30221, and the guide groove 30221 is arranged corresponding to the puncture needle groove 3021. Therefore, the limiting groove 30222 and the puncture needle groove 3021 are arranged opposite to each other, that is, the limiting groove 30222 and the guide groove 30221 are arranged at intervals.

[0096] In one embodiment of this application, the puncture needle groove 3021, the guide groove 30221, and the limiting groove 30222 are configured as three.

[0097] When the puncture needle rod 302 is inserted into the fixed sleeve 301, and the puncture needle groove 3021 corresponds to the first opening 3011, the limiting groove 30222, which is opposite to the puncture needle groove 3021, corresponds to the protrusion 3013 on the fixed sleeve 301. At this time, the puncture needle rod 302 is further inserted into the fixed sleeve 301, so that the protrusion 3013 enters the limiting groove 30222. At this time, the puncture needle rod 302 is restricted in displacement by the protrusion 3013 and can no longer rotate relative to the fixed sleeve 301, which can effectively improve the stability of the puncture needle rod 302 during puncture.

[0098] When it is necessary to change to a puncture needle of a different diameter or to rotate the puncture needle rod 302, simply raise the puncture needle rod 302 so that the protrusion 3013 moves out of the limiting groove 30222, and the puncture needle rod 302 can be rotated again to replace the puncture needle groove 3021 corresponding to the first opening 3011.

[0099] Furthermore, Figure 7 This schematic diagram illustrates the structure of a puncture stent according to one embodiment of the present invention, as shown below. Figure 7 As shown:

[0100] A first installation position 101 and a second installation position 102 are respectively provided on two adjacent side walls of the puncture bracket 10. When the puncture plate 20 is in the first installation position 101, the puncture plate 20 is in the short axis direction of the palm ultrasound probe. When the puncture plate 20 is in the second installation position 102, the puncture plate 20 is in the long axis direction of the palm ultrasound probe.

[0101] Specifically, both the first installation position 101 and the second installation position 102 are located on the center line of the side wall of the puncture stent 10, which facilitates observation and control;

[0102] In one embodiment, mounting grooves can be provided at the first mounting position 101 and the second mounting position 102, and mounting blocks are provided on the side wall of the puncture plate 20. The mounting blocks are inserted into the mounting grooves, and the two are fixed by screws, thus completing the fixed connection between the puncture plate 20 and the puncture bracket 10.

[0103] Of course, the connection between the puncture bracket 10 and the puncture plate 20 can also be configured as other structures that can achieve a fixed connection.

[0104] With this configuration, when the puncture bracket 10 is fitted onto the handheld ultrasound probe, an out-of-plane puncture can be achieved by installing the puncture plate 20 at the first installation position 101, and an in-plane puncture can be achieved by installing the puncture plate 20 at the second installation position 102, so that the puncture bracket 10 can have two puncture functions at the same time.

[0105] In summary, according to the present invention, the puncture needle assembly 30 includes a fixed sleeve 301 and a puncture needle rod 302. The puncture needle rod 302 is located inside the fixed sleeve 301 and can rotate relative to the fixed sleeve 301. The puncture needle rod 302 has multiple puncture needle grooves 3021 of different diameters, which can be used for puncture needles of different diameters. The fixed sleeve 301 is provided with a first opening 3011, which allows the puncture needle to be inserted from one end and extended from the other end. When the puncture needle groove 3021 corresponds to the first opening 3011, the puncture needle can be used. When the puncture needle groove 3021 corresponds to the first opening 3011, the puncture needle can be taken out for replacement. By rotating the puncture needle rod 302, the puncture needle grooves 3021 of different diameters can be aligned with the first opening 3011, thereby enabling the replacement of puncture needles of different diameters.

[0106] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0107] It should be understood that the sequence number of each step in the invention content and embodiments of this application does not absolutely imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

Claims

1. A puncture device for a hand-held ultrasound, characterized by, The application relates to a puncture support, a puncture plate and a puncture needle assembly. The puncture support is sleeved with a palm ultrasonic probe, the puncture plate is detachably connected with the side wall of the puncture support; The puncture needle assembly is arranged in the puncture plate, and two ends of the puncture needle assembly can be exposed from the puncture plate, the puncture needle assembly is slidably connected with the side wall of the puncture plate, and the puncture direction of one end of the puncture needle assembly is adjusted by changing the position of the other end; The puncture needle assembly comprises a fixed sleeve and a puncture needle rod, the side wall of the fixed sleeve is slidably connected with the puncture plate, and the puncture needle rod is inserted into the fixed sleeve and rotationally connected with the side wall of the fixed sleeve; A plurality of puncture needle grooves are arranged on the side wall of the puncture needle rod in an axial direction, the puncture needle grooves are used for guiding the puncture needle to pass through, and the diameters of the plurality of puncture needle grooves are different; An axial first opening is arranged on the side wall of the fixed sleeve, and the first opening penetrates through the two ends and the side wall of the fixed sleeve; When the puncture needle groove corresponds to the first opening, the puncture needle can sequentially pass through one end of the fixed sleeve, the puncture needle groove and the other end of the fixed sleeve to perform puncture, and the puncture needle can move out through the first opening; The puncture needle assembly further comprises a limiting sleeve; The limiting sleeve is located in the fixed sleeve and sleeved with the puncture needle rod, and the limiting sleeve is rotationally connected with the fixed sleeve and the puncture needle rod; A second opening is arranged on the side wall of the limiting sleeve and penetrates through the two ends and the side wall of the limiting sleeve, when the second opening does not correspond to the first opening and the puncture needle groove corresponds to the first opening, the limiting sleeve can prevent the puncture needle from moving out of the puncture needle groove; A circumferential third opening is arranged on the side wall of the fixed sleeve and penetrates through the side wall of the fixed sleeve, and part of the side wall of the limiting sleeve can be exposed to the third opening; the third opening is used for controlling the rotation of the limiting sleeve to adjust the position of the second opening on the limiting sleeve. The third opening is communicated with the first opening.

2. The puncture device for a palm-sized ultrasound according to claim 1, wherein A pushing piece is arranged on the side wall of the limiting sleeve, and the length of the pushing piece is equal to the length of the third opening; 3. The handheld ultrasound puncture device according to claim 2, wherein, The pushing piece is exposed to the fixed sleeve through the third opening, and the pushing piece is used for driving the rotation of the limiting sleeve. The puncture plate is arranged in a fan shape, the puncture plate has a hollow structure, the fixed sleeve can pass through the hollow structure of the puncture plate; 4. The handheld ultrasound puncture device according to claim 1, wherein, A first fixing member, a second fixing member and a sliding groove are arranged on the side wall of the puncture plate; The sliding groove is arranged close to the arc-shaped end of the puncture plate, the first fixing member is arranged in the sliding groove, and the first fixing member can move along the sliding groove; The second fixing member is arranged close to the opposite end of the arc-shaped end of the puncture plate, and the second fixing member can rotate; When the fixed sleeve is located in the hollow structure, the first fixing member and the second fixing member are used for fixedly connecting with the fixed sleeve. ​ 5. The handheld ultrasound puncture device according to claim 4, wherein, A guide cover is arranged at one end of the puncture needle rod, and a side wall of the guide cover is provided with a plurality of guide grooves arranged one by one corresponding to the puncture needle grooves; When the puncture needle rod is located in the puncture plate, the guide cover is located outside the puncture plate, and the guide cover is arranged close to the arc-shaped edge of the puncture plate.

6. The handheld ultrasound puncture device according to claim 5, wherein, A protrusion is arranged on a top plane of the fixing sleeve, and a plurality of limiting grooves are arranged on the guide cover; The protrusion is arranged opposite to the first opening, the limiting grooves are arranged opposite to the guide grooves, and the circumferential length of the plurality of limiting grooves is equal to that of the protrusion; When the protrusion is located in the limiting groove, the puncture needle rod is limited to displace.

7. The handheld ultrasound puncture device according to claim 1, wherein, The width of the first opening is greater than the width of the widest puncture needle groove; The width of the second opening is equal to that of the first opening.

8. The handheld ultrasound puncture device according to claim 1, wherein, First and second installation positions are respectively arranged on two adjacent side walls of the puncture support, when the puncture plate is located in the first installation position, the puncture plate is in the short axis direction of the palm ultrasonic probe, and when the puncture plate is located in the second installation position, the puncture plate is in the long axis direction of the palm ultrasonic probe.

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