WO2021180069A1 - 穿刺支架及活检装置 - Google Patents

穿刺支架及活检装置 Download PDF

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Publication number
WO2021180069A1
WO2021180069A1 PCT/CN2021/079739 CN2021079739W WO2021180069A1 WO 2021180069 A1 WO2021180069 A1 WO 2021180069A1 CN 2021079739 W CN2021079739 W CN 2021079739W WO 2021180069 A1 WO2021180069 A1 WO 2021180069A1
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WO
WIPO (PCT)
Prior art keywords
arm
push button
rod
wall
hoop
Prior art date
Application number
PCT/CN2021/079739
Other languages
English (en)
French (fr)
Inventor
卢杰
姜新华
王宝中
朱瑜
邢甲佳
王沁
陈兴发
顾伟
Original Assignee
苏州市立普医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 苏州市立普医疗科技有限公司 filed Critical 苏州市立普医疗科技有限公司
Priority to CN202180020352.1A priority Critical patent/CN115461002A/zh
Priority to GB2214620.3A priority patent/GB2609124A/en
Publication of WO2021180069A1 publication Critical patent/WO2021180069A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/0241—Pointed or sharp biopsy instruments for prostate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A61B10/0266—Pointed or sharp biopsy instruments means for severing sample
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238—Type of minimally invasive operation
    • A61B2017/00274—Prostate operation, e.g. prostatectomy, turp, bhp treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A61B2017/3405—Needle locating or guiding means using mechanical guide means
    • A61B2017/3407—Needle locating or guiding means using mechanical guide means including a base for support on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A61B2017/3405—Needle locating or guiding means using mechanical guide means
    • A61B2017/3409—Needle locating or guiding means using mechanical guide means including needle or instrument drives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A61B2017/3405—Needle locating or guiding means using mechanical guide means
    • A61B2017/3411—Needle locating or guiding means using mechanical guide means with a plurality of holes, e.g. holes in matrix arrangement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3403—Needle locating or guiding means
    • A61B2017/3413—Needle locating or guiding means guided by ultrasound

Definitions

  • the invention relates to the technical field of medical supplies, in particular to a puncture stent and a biopsy device.
  • prostate biopsy is generally used to detect and diagnose prostate diseases.
  • ultrasound biopsy a small amount of tissue samples need to be taken from different parts of the prostate to achieve a clear diagnosis.
  • the biopsy is less traumatic and has a high accuracy rate. It has a wide range of clinical applications.
  • Commonly used biopsy sampling methods are transrectal route and transperineal route; among them, transrectal route has some disadvantages, mainly including: 1. Ultrasound probe and puncture stent reach the position of prostate through rectal entrance, and bacteria in the rectum can easily cause high Risk of infection; 2. There is a certain blind spot in the limited puncture position. Therefore, transperineal puncture is the current mainstream method of prostate biopsy, which has the advantages of aseptic operation, low risk of infection, and comprehensive sampling.
  • the transperineal puncture operation requires the use of a puncture stent with an ultrasound probe.
  • the transperineal puncture stent used in hospitals mainly uses a puncture stent similar to a mesh sieve plate, and can be used for puncture only after being fixed with a customized stepper; there are the following Disadvantages: 1. Need to use a specific stepper, which is expensive and large in size, which affects the flexible operation of the doctor during the operation; 2. Cannot achieve the separation function of the needle holder during the operation; 3. The volume of the sieve plate puncture holder Large placement in the perineum will seriously increase the discomfort of the patient during the operation.
  • the present invention provides a puncture stent and a biopsy device, which has the advantages of simple structure, low cost, flexible and convenient operation, and puncture needle separation during surgery.
  • a puncture stent including a main body, a rod, and a needle groove plate, wherein: the main body can be connected to an ultrasound probe and has a channel, the length of the channel is less than the length of the rod; the rod can enter from its first end In the channel, and can slide back and forth in the channel along a first direction, the first direction is parallel to the extension direction of the rod; the needle groove plate is fixed on the second end of the rod, the needle groove plate has at least one parallel The direction of the piercing hole.
  • the main body includes a hoop and two spaced L-shaped walls; the hoop is used to connect the ultrasonic probe; the L-shaped wall includes a vertical wall and a transverse wall, wherein the vertical wall extends from the outer surface of the hoop in a direction away from the hoop, The two transverse walls respectively extend from the free sides of the two vertical walls opposite to each other, and the free sides are parallel to the first direction, so that the two L-shaped walls and the outer wall of the hoop enclose a channel.
  • the hoop includes a hoop body with an arched cross-section and an arched wrench connected to the hoop body, the L-shaped wall is located on the hoop body; one edge of the hoop body is rotatably connected to one end of the wrench , There is a first stepped edge near the other edge of the hoop body, and a second stepped edge is arranged on the other end of the wrench. The second stepped edge is used to engage with the first stepped edge so that the hoop body and the wrench form a closed Of the ring.
  • the upper surface of the main arm of the rod has an upper boss, and the upper boss protrudes upward so as to be located between the two transverse walls and extends along the first direction; a plurality of recesses are along both sides of the upper boss
  • the wall surface is arranged in a line along the first direction; the two transverse walls have a gap at the same position in the first direction;
  • the puncture support also has a push button and two first elastic arms, wherein: first elastic The fixed end of the arm is fixed on the inner wall at the entrance of the notch, the first elastic arm is parallel to the first direction, so that the first elastic arm and the notch form a hole, and the free ends of the two first elastic arms are provided with convex points.
  • the push button includes a push button platform and two fixed arms.
  • the fixed arm is located on the lower surface of the push button platform and is perpendicular to the push button platform. Sliding in the first direction, the root of the fixed arm has a section of the fixed arm protruding toward the entrance of the notch. The section of the fixed arm is used to abut the free end of the first elastic arm, so that the convex point cannot be separated after being trapped in the pit, thereby restricting the rod Sliding in the channel along the first direction.
  • a section of the fixed arm is provided with two sections of a fixed arm extending in a direction away from the push button platform, and a U-shaped groove parallel to the first direction is formed between the two sections of the fixed arm and a section of the fixed arm.
  • a part of the side edge is located in the U-shaped groove; the upper surface of the push button platform is provided with a hand position groove and/or an identification part.
  • the wall of the hoop is provided with a single hole, and the single hole is provided with a second The elastic arm, the single hole is located on the wall of the hoop in the channel, and is close to the end of the channel away from the needle groove plate; the second elastic arm is parallel to the first direction, and the fixed end of the second elastic arm is fixed on the hoop
  • the free end of the second elastic arm is provided with a protruding structure on the end surface of the wall, and the protruding structure includes a first straight end surface whose height is greater than the wall thickness of the hoop, so that the protruding structure protrudes toward the inside of the channel and enters the The accommodating space; the first end of the rod has an end wall perpendicular to the first direction, and the inner side of the end wall can be blocked by the first straight end surface during the sliding process of the rod to stop sliding.
  • the front end of the main arm is provided with two parallel sub-arms extending in the first direction, a defined interval is provided between the two sub-arms, and a protruding stopper is provided on the inner side of the two sub-arms.
  • the two retaining walls protrude toward each other; the lower surface of the main arm is provided with a lower boss arranged along its length.
  • the surface of the lower boss is attached to the outer wall of the hoop, and the lower boss extends to the bottom of the jib ,
  • the bottom of the end of the two auxiliary arms away from the main arm is connected to the beam
  • a third elastic arm arranged along the sliding direction of the rod is arranged between the two auxiliary arms, and the two ends of the third elastic arm are respectively connected to the end of the main arm and Beam connection
  • the upper surface of the third elastic arm is provided with a protruding structure, the protruding structure includes a second inclined surface and a second straight end surface;
  • the width direction of the needle groove arm is set on the edge of the bottom of the needle groove arm, the bottom surface of the needle groove arm is provided with a convex structure, and the convex structure is located between the two plug-in arms.
  • the convex structure includes a third inclined surface and a third straight end surface. ;
  • the plug-in arm is inserted between the two auxiliary arms, and the upper surface of the plug-in arm is attached to the lower surface of the retaining wall, and the position of the second inclined surface and the second straight end surface, and the third inclined surface and the third straight end surface are arranged The second straight end surface abuts the third straight end surface, so that the plug arm cannot withdraw from between the two auxiliary arms.
  • the two ends of the beam respectively protrude toward the two sides of the first direction, so that the end surface of the hoop close to the second end of the rod can abut to form a limit.
  • a plurality of beams are arranged in parallel along the height direction of the needle groove arm, and the piercing hole is a gap between the plurality of beams; or the piercing hole has a complete inner wall .
  • the needle groove arm includes a main body part and a mating part.
  • the mating surface of the mating part is provided with a plurality of parallel grooves, and the plurality of grooves are distributed along the height direction of the needle groove arm and penetrate through the needle groove arm in the width direction.
  • Needle groove arm; the butting surface of the main body part and the butting surface of the mating part are attached to form a hole with a complete inner wall.
  • a puncture stent including a main body, a rod and a push button; the main body has a channel; the rod can enter the channel from its first end, and can slide back and forth in the channel in a first direction, The first direction is parallel to the extension direction of the rod; the push button is connected to the main body and can move between the first position and the second position of the main body, and a clamping structure is provided between the push button and the rod, and the push button moves to the second position. In the first position, the push button and the rod are locked by the clamping structure, and when the push button is moved to the second position, the push button and the rod are unlocked.
  • the main body includes a hoop and two spaced L-shaped walls
  • the L-shaped wall includes a vertical wall and a transverse wall
  • the vertical wall extends from the outer surface of the hoop in a direction away from the hoop
  • the two transverse walls respectively extend from two The free sides of the walls extend toward each other, and the free sides are parallel to the first direction, so that the two L-shaped walls and the outer wall of the hoop enclose a channel
  • the upper surface of the main arm of the rod has an upper boss, and the upper boss protrudes upward The exit is thus located between the two transverse walls and extends along the first direction.
  • the two transverse walls have a gap at the same position in the first direction;
  • the puncture support further has two first elastic arms, and the fixed ends of the first elastic arms are fixed on the inner wall at the entrance of the gap.
  • An elastic arm is parallel to the first direction, so that the first elastic arm and the notch constitute a hole;
  • the push button includes a push button platform and two fixed arms.
  • the fixed arm is located on the lower surface of the push button platform and is perpendicular to the push button platform.
  • the arm is inserted into the hole and can slide along the first direction in the hole, so as to realize the connection of the push button with the main body and the movement of the push button between the first position and the second position of the main body;
  • the clamping structure includes a convex point and a concave
  • the free ends of the two first elastic arms are provided with convex points, and the two convex points are convex toward each other; a plurality of concave pits are arranged in a line along the first direction along the two sidewall surfaces of the upper boss; and fixed;
  • the root of the arm has a fixed arm section protruding toward the entrance of the notch.
  • the fixed arm section When the push button is in the first position, the fixed arm section abuts on the free end of the first elastic arm, so that the convex point cannot be separated after being trapped in the pit, thereby restricting The rod slides along the first direction in the channel.
  • the fixed arm moves to the fixed end of the first elastic arm to separate the convex point from the recess, thereby releasing the rod from moving along the channel in the channel. Limit of sliding in the first direction.
  • two side ends of the push button platform are provided with extension plates, which are perpendicular to the lower surface of the push button platform and are attached to the outer wall of the vertical wall; the side of the extension plate away from the vertical wall is provided with a pressing hand position.
  • one of the cross arms is provided with an opening;
  • the push button includes a first push button platform and an insert plate, the insert plate is located on the lower surface of the first push button platform and is perpendicular to the first push button platform, and the insert plate is inserted through the opening In the gap between the side wall of the upper boss and the inner wall of the vertical wall on the same side, and can slide in the first vertical direction in the gap, so as to realize the connection between the push button and the main body, and the push button is in the first position of the main body and Move between the second position;
  • the card connection structure includes a plug-in part and a slot, a plurality of slots are provided on the side wall on the same side of the upper boss and the opening, and the plurality of slots are arranged in a line along the first direction,
  • the plug-in board is provided with a plug-in portion on the side facing the upper boss; when the push button is in the first position, the plug-in portion is located in the slot, and the plug-in board is at least partially located in
  • the two transverse walls are both provided with openings at the same position in the first direction; the lower surface of the first push button platform is provided with two spaced insert plates, and the inserting part is arranged on the same side as the slot The board; the straight-line distance between the two boards is less than the straight-line distance between the bottom of the two openings.
  • At least one of the transverse walls has a first gap;
  • the first gap is provided with a fourth elastic arm, the fixed end of the fourth elastic arm is fixed on the inner wall at the entrance of the first gap, and the fourth elastic arm is parallel to the In the first direction, the fourth elastic arm and the first notch constitute a first hole;
  • the push button includes a second push button platform and a first fixed arm, the first fixed arm is connected to the lower surface of the second push button platform through a connecting rod,
  • the vertical arm is provided with a first strip hole arranged along the first direction, the second push button platform is located on the outside of the vertical arm, the connecting rod is located in the first strip hole, and the first fixed arm is located in the first hole,
  • the first fixed arm can slide along the first direction in the first hole;
  • the clamping structure includes a first convex point and a first recess, the free end of the fourth elastic arm is provided with a first convex point, and the first convex point Protruding toward the vertical arm; a
  • the section of the first fixed arm abuts on the free end of the fourth elastic arm, so that the first convex point cannot be separated after being trapped in the first pit, thereby restricting the rod from being on the inner edge of the channel Slide in the first direction, and when the push button is in the second position, the first fixed arm moves to the fixed end of the fourth elastic arm to separate the first convex point from the first recess, thereby releasing the rod from the inner edge of the channel.
  • the limitation of sliding in the first direction is described.
  • a cover plate is further included, and the lower surface of the cover plate is fixedly connected with the upper surface of the transverse wall, so that the cover plate is sealed on the first notch of the channel.
  • the push button includes a third push button platform and a connecting block.
  • the connecting block is connected to the lower surface of the third push button platform.
  • the three-push button platform is located on the outside of the vertical arm, the connecting block is located in the second strip hole, and the connecting block can slide in the second strip hole in the first direction perpendicular to the first direction;
  • the clamping structure includes a lock block and a lock groove, which are connected The side of the block away from the third push button platform is provided with a lock block.
  • the lock block is located between the lower surface of the transverse wall and the upper surface of the main arm of the lever; the upper surface of the main arm of the lever is located on the same side of the upper boss with A lock groove arranged along the first direction; when the push button is in the first position, the lock block is located in the lock groove, thereby restricting the rod from sliding in the channel along the first direction. When the push button is in the second position, the lock block It is separated from the lock groove, so as to release the restriction of the rod sliding in the first direction in the channel.
  • two ends of the connecting block are provided with elastic locking hooks along the first direction perpendicular to the first direction, and the free ends of the elastic locking hooks abut the inner wall of the second strip-shaped hole.
  • the outer wall of the ultrasonic probe is provided with a limiting protrusion
  • the hoop is provided with a slot for engaging with the limiting protrusion
  • the needle groove plate is used to replace the existing square puncture frame, and the stepper structure is omitted, which not only optimizes the structure of the puncture bracket, reduces its volume, but also reduces the manufacturing cost; It can be flexibly extended and retracted, so that the position of the needle groove plate can be adjusted, which can prevent the needle groove plate from pressing the patient’s perineum and reduce the discomfort of the puncture process; further, the puncture needle can be separated from the puncture bracket and the ultrasound probe, which is beneficial to the doctor Flexible operation.
  • Fig. 1 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention
  • Figure 2 is a schematic diagram of the structure of the main body
  • Figure 3 is a schematic view of the structure of the main body from another perspective
  • Figure 4 is a schematic diagram of the structure of the wrench
  • Figure 5 is a schematic view of the structure of the wrench from another perspective
  • Figure 6 is a schematic diagram of the structure of the wrench with a rubber pad
  • Figure 7 is a schematic diagram of the structure of the push button
  • Figure 8 is a schematic view of the structure of the push button from another perspective
  • Figure 9 is a schematic diagram of the structure of the rod.
  • Figure 10 is a schematic diagram of the connection between the rod and the needle groove plate
  • Figure 11 is a schematic diagram of the structure of the top of the main body
  • Figure 12 is a cross-sectional view of the first elastic arm along the first direction
  • Figure 13 is a schematic view of the structure of the lower surface of the rod
  • Figure 14 is a schematic view of the structure of the rod from another perspective
  • Figure 15 is a cross-sectional view of the front end of the rod
  • Figure 16 is a schematic diagram of the structure of a needle groove plate with a half-pack of needle holes
  • FIG. 17 is a schematic view of the structure of FIG. 16 from another perspective
  • Figure 18 is a schematic diagram of the structure of the bottom of the needle groove plate
  • Figure 19 is a schematic structural view of a needle groove plate with a full package of needle holes
  • FIG. 20 is a schematic view of the structure of FIG. 19 from another perspective
  • Figure 21 is a schematic diagram of the structure of the main part
  • Figure 22 is a schematic diagram of the structure of the mating part
  • Figure 23 is a structural diagram of the top buckle of the mating part
  • Figure 24 is a schematic structural view of the bottom protrusion of the mating part
  • Figure 25 is a schematic view of the structure of the main part and the mating part when assembled
  • Figure 26 is a schematic view of the structure of the main body part and the mating part after being assembled
  • Figure 27 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention.
  • FIG. 28 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention.
  • Figure 29 is a schematic view of the structure of the opening and the slot in Figure 28;
  • FIG. 30 is a schematic diagram of the structure of the first push button platform in FIG. 28;
  • Figure 31 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention.
  • Figure 32 is a top view of the push button in the state without the cover in Figure 31;
  • FIG. 33 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention.
  • Figure 34 is a schematic diagram of the structure of the push button in Figure 33;
  • Figure 35 is a partial cross-sectional view of the push button in Figure 33 when locked
  • Fig. 36 is a schematic structural diagram of a biopsy device provided by an embodiment of the present invention.
  • 11 hoop; 12: L-shaped wall; 13: channel; 111: first stepped edge; 112: rotating shaft; 113: slot; 120: hole: 121: first elastic wall; 122: gap; 123: vertical Wall; 124: transverse wall; 1211: convex point; 1241: opening; 1242: first gap; 1243: fourth elastic arm; 1244: first hole; 130: raised structure; 131: second elastic wall; 132: first An inclined surface; 133: the first straight end surface; 134: single hole;
  • 21 rotating sleeve
  • 22 arched part
  • 23 second stepped edge
  • 24 hand position
  • 51 pin groove arm; 52: plug arm; 53: main body part; 54: mating part; 511: depth mark; 512: specification mark; 513: pin hole; 520: raised structure; 521: third inclined plane; 522: third straight end surface; 531: hole; 532: docking platform; 533: groove; 541: buckle; 542: raised structure; 543: raised; 5411: first flat plate; 5412: second flat plate; 5413 : Handle; 5421: the fourth inclined surface; 5422: the fourth straight end surface; 5131: groove;
  • the structure of the puncture stent is effectively optimized, which can not only reduce the volume and reduce the cost, but also facilitate the flexible operation of the doctor and reduce the discomfort of the patient. This will be described in detail below.
  • Figure 1 is a schematic structural diagram of a puncture support provided by an embodiment of the present invention.
  • the puncture support provided by the present invention includes a main body 1, a wrench 2, a push button 3, a rod 4, and a needle groove plate 5;
  • the main body 1 and the wrench 2 are used to connect the ultrasonic probe.
  • the first end of the rod 4 is inserted into the main body 1, and the second end is connected to the needle groove plate 4.
  • the rod 4 can slide back and forth along its extension direction (the viewing angle in the figure is left and right The sliding direction is referred to as the “first direction” below).
  • the push button 3 can lock the lever 4.
  • the structure of the puncture stent will be further described below.
  • FIG. 2 is a schematic diagram of the structure of the main body.
  • the main body 1 includes a hoop 11 and two spaced L-shaped walls 12; the hoop 11 is used to connect the ultrasound probe; the L-shaped wall 12 includes a vertical wall 123 and a horizontal wall 124, wherein the vertical wall 123 is self-contained
  • the outer surface of the hoop 11 extends in a direction away from the hoop 11 (upward according to the viewing angle in the figure).
  • the two transverse walls 124 respectively extend from the free sides of the two vertical walls 123 opposite to each other. The free sides are parallel to the first direction, so that the two The L-shaped wall 12 and the outer wall of the hoop 11 enclose a channel 13.
  • Figure 3 is a schematic structural view of the main body from another perspective. As shown in Figures 2 and 3, the L-shaped wall 12 is arranged above the hoop body of the hoop 11, and one side of the hoop body is provided The first stepped edge 111 (shown in FIG. 2) has a rotating shaft 112 (shown in FIG. 3) on the other side.
  • the hoop 11 also includes a wrench 2 for connecting with the hoop body;
  • Figure 4 is a schematic structural diagram of the wrench;
  • Figure 5 is a structural diagram from another perspective of the wrench; as shown in Figures 4 and 5, the main body of the wrench is arched
  • the part 22 and the arched part 22 have a certain elastic deformation capacity.
  • One end of the arch portion 22 is provided with a rotating sleeve 21, and the other end is provided with a second stepped edge 23 for clamping with the first stepped edge 111, wherein a hand position 24 is also provided at the second stepped edge 23.
  • the rotating sleeve 21 is a cylindrical shape with an opening.
  • the width of the opening is smaller than the inner diameter of the cylinder, and the rotating sleeve 21 has a certain elastic deformation ability so that the width of the opening can be changed, so that the rotating sleeve 21 can be locked with the connecting shaft 112.
  • the wrench 2 can rotate around the rotating shaft 112 within a certain range.
  • the first stepped edge 111 can be engaged with the second stepped edge 23 provided on the wrench 2, and the inclination direction of the steps of the two makes the two move only in the direction of reducing the inner diameter of the hoop in the contact state.
  • the other end of the wrench 2 needs to be pulled to separate the first stepped edge 111 from the second stepped edge 23.
  • the operator only needs to hold the hoop at the mouth of the operator's hand and then apply force to tighten the hoop, so it is easy to control the size of the formed hoop 11, and Cannot relax after tightening.
  • the multi-step stepped edge makes the hoop applicable to various diameters of the puncture stent, thereby improving the applicability of the puncture stent.
  • the hoop body and the wrench 2 there is a separate structure between the hoop body and the wrench 2, and the ultrasonic probe can be held tightly by opening or closing the wrench 2; in addition, the hoop body and the wrench 2 can also be set as One-piece structure, that is, the hoop body and the wrench 2 enclose a closed loop with a constant inner diameter. Using the friction between the inner surface of the hoop and the outer surface of the ultrasonic probe, the closed-loop structure is sleeved on the puncture bracket when the ultrasonic probe is connected. On the ultrasound probe.
  • Figure 6 is a schematic view of the structure of the wrench with a rubber pad.
  • a rubber pad 6 is arranged on the inner wall of the arch portion 22 along the arc direction.
  • the soft rubber pad 6 is made of rubber or TPE, TPU and other soft materials. , It is fixedly connected to the arched portion 22, such as bonding; by setting the structure of the rubber pad 6, the puncture support can be better assembled, and the friction between the puncture support and the ultrasonic probe can be increased, and the assembly is more stable.
  • the rubber pad 6 is made of elastomer material, so when installing and removing the puncture bracket, it can better protect the ultrasonic probe from being scratched and damaged.
  • Figure 7 is a schematic structural diagram of the push button
  • Figure 8 is a schematic structural diagram of the push button from another perspective; as shown in Figures 7 and 8, the push button 3 includes a push button platform 31 and two fixed arms 32.
  • the bottom surface of the button platform 31 is perpendicular to the button platform 31.
  • the upper surface of the push button platform 31 is provided with a hand position groove 311 and/or an identification part.
  • the hand slot 311 can increase the friction between the finger and the finger
  • the identification part is text and/or pattern information, which is convenient for the user to know the function and operation method of the push button 3.
  • FIG. 9 is a schematic structural diagram of the rod.
  • the rod 4 includes a main arm 41, an upper boss 42 arranged above the main arm 41, and a lower boss 43 arranged below the main arm 41.
  • the upper boss 42 and the lower boss 43 extend along the length direction of the main arm 41, and the three are an integral structure, that is, the cross-sectional shape of the rod 4 is similar to a "+" character.
  • the rod 4 can enter the channel 13 from its first end (the proximal end from the perspective of FIG.
  • the length of the channel 13 is less than the length of the rod 4, so that after the rod 4 enters the channel 13, a part of it is outside the channel 13 and can be installed Needle groove plate; the rod 4 can slide back and forth in the channel 13 along the first direction.
  • the upper boss 42 is located between the two transverse walls 124, and the surface of the lower boss 43 is attached to the outer wall of the hoop 11.
  • Figure 10 is a schematic structural diagram of the connection between the rod and the needle groove plate; as shown in Figure 10, the needle groove plate 5 is fixed on the second end of the rod 4 (ie, the distal end in FIG. The piercing hole 513 parallel to the first direction. The structure of the needle groove plate will be described later.
  • the push button 3 can be used to lock the rod 4 so as to limit the telescopic position of the rod 4 on the main body 1 to achieve the purpose of adjusting the position of the needle groove plate 5.
  • a plurality of pits 421 are arranged in a line along the above-mentioned first direction along the two sidewall surfaces of the upper boss 42.
  • Fig. 11 is a schematic diagram of the structure of the top of the main body;
  • Fig. 12 is a cross-sectional view of the first elastic arm along the first direction.
  • the two transverse walls 124 have a notch 122 at the same position in the first direction; the fixed end of the first elastic arm 121 is fixed on the inner wall at the entrance of the notch 122.
  • An elastic arm 121 is parallel to the first direction, so that the first elastic arm 121 and the notch 122 form a hole 120.
  • the free ends of the two first elastic arms 121 are provided with bumps 1211, and the two bumps 1211 protrude toward each other.
  • the fixed arm 32 is inserted into the hole 120 and can slide in the first direction in the hole 120.
  • the root of the fixed arm 32 has a fixed arm section 321 protruding toward the entrance of the notch 122.
  • the arm section 321 When the arm section 321 is located at the free end of the first elastic arm 121, it abuts against the first elastic arm 121. At this time, the fixed arm section 321 can restrict the free end of the first elastic arm 121 from opening, so that the convex point 1211 cannot be removed from the concave.
  • the pit 421 is disengaged, and the first elastic arm 121 locks the rod 4 to achieve the purpose of restricting the free sliding of the rod 4 in the first direction; when the fixed arm section 321 slides to the other end of the first elastic arm 121 (away from the free end), The free end of the first elastic arm 121 breaks away from the restriction of the fixed arm section 321.
  • the convex point 1211 can be detached from the recess 421, and the pulling force is continuously applied to the rod 4, and the convex point 1211 repeats The action of sinking into the pit 421 and leaving the pit 421 until the rod 4 moves to the target position.
  • the convex point 1211 sinks into the pit 421, and the fixed arm 321 is moved to the free end of the first elastic arm 121. 321 realizes the locking of the rod 4 again, and completes the position adjustment of the rod 4.
  • the fixed arm section 321 is provided with two fixed arm sections 323 extending away from the push button platform 31, and a U-shape parallel to the first direction is formed between the fixed arm section 323 and the fixed arm section 321.
  • Fig. 13 is a structural diagram of the lower surface of the rod (from the perspective of Fig. 1). As shown in Fig. 13, the lower part of the rod 4 (in Fig. 13, the rod 4 is the above-mentioned flipped state where the lower surface is placed upwards) has a direction along the aforementioned first direction.
  • the extended groove 47 can form an accommodation space between the groove 47 and the outer wall of the hoop 11. As shown in FIG.
  • a single hole 134 is provided on the wall of the hoop 11, and a second elastic arm 131 is provided in the single hole 134.
  • the second elastic arm 131 has a certain elastic deformation ability.
  • the single hole 134 is located on the wall of the hoop 11 in the channel 13 and is close to the end of the channel 13 away from the needle groove plate 5 (refer to FIG.
  • the second elastic arm 131 is parallel to the first direction, the fixed end of the second elastic arm 131 is fixed on the end surface of the wall of the hoop 11, the free end of the second elastic arm 131 is provided with a protruding structure 130, the protruding structure 130 includes a height greater than the hoop The first straight end surface 133 of the wall thickness of 11 and the first inclined surface 132, so that the convex structure 130 protrudes toward the inside of the channel 13 and enters the accommodating space formed between the groove 47 and the outer wall of the hoop 11; As shown in 13, the first end of the rod 4 has an end wall 46 perpendicular to the first direction. Referring again to FIG. 11, when the rod 4 slides in the channel 13 to the upper right in FIG. 132.
  • the inner side 461 can be blocked by the first straight end surface 133 to stop the rod 4 from sliding, and thus the rod 4 cannot withdraw from the channel 13.
  • the protruding structure 130 is enclosed in the above-mentioned accommodating space, which makes it difficult for the rod 4 to be detached from the channel 13, which helps to realize the one-time use of the puncture stent and improve the hygiene and safety.
  • Fig. 14 is a schematic view of the structure of the rod from another perspective
  • Fig. 15 is a cross-sectional view of the front end of the rod.
  • the front end of the main arm 41 is provided with two sub-arms 411 extending in the first direction in parallel at both side edges of the main arm 41, and the two sub-arms 411 are provided on both side edges of the main arm 41. Extends so there is a gap between the two.
  • a protruding retaining wall 4111 is provided on the inner side of the two auxiliary arms 411, and the two retaining walls 4111 protrude toward each other.
  • the lower boss 43 extends below the auxiliary arm 411, and the bottom of one end of the two auxiliary arms 411 away from the main arm 41 is connected to the beam 45.
  • a third elastic arm 44 arranged along the sliding direction of the rod 4 is provided between the two auxiliary arms 411. Both ends of the third elastic arm 44 are connected to the end of the main arm 41 and the beam 45, respectively.
  • a convex structure 440 is provided on the surface, and the convex structure 440 includes a second inclined surface 441 and a second straight end surface 442.
  • Fig. 16 is a schematic structural diagram of a needle groove plate with half-packed needle holes
  • Fig. 17 is a schematic structural diagram from another perspective of Fig. 16
  • Fig. 18 is a schematic structural diagram of the bottom of the needle groove plate; as shown in Figs. 16 to 18, the needle groove
  • the board 5 includes a needle groove arm 51 and two plug arms 52.
  • the needle groove arm 51 is provided with a depth mark 511 and a specification mark 512.
  • the two plug arms 52 are arranged in the needle groove along the width direction of the needle groove arm 51.
  • the bottom surface of the needle groove arm 51 is provided with a protruding structure 520, and the protruding structure 520 is located between the two insertion arms 52.
  • the protruding structure 520 includes a third inclined surface 521 and a third straight end surface 522.
  • the insertion arm 52 is inserted between the two auxiliary arms 411, and the upper surface of the insertion arm 52 is attached to the lower surface of the blocking wall 4111, the second inclined surface 441 and the second straight end surface 442, as well as the third inclined surface 521 and the first
  • the position of the three straight end surfaces 522 is such that the second straight end surface 442 and the third straight end 522 abut against the surface, so that the plug arm 52 cannot move to the left (refer to FIG. 10 here), and thus cannot withdraw from between the two auxiliary arms 411 .
  • the two ends of the beam 45 respectively protrude in the left and right directions, so that the end surface of the hoop 11 close to the second end of the rod 4 can abut to form a limit.
  • the restriction structure cooperates with the restriction structure of the end wall 46 at the other end of the rod 4 so that both ends of the rod 4 are restricted, so that the rod 4 will not be separated from the main body 1. This also helps to realize the one-time use of medical equipment.
  • the piercing hole 513 is a fully enclosed hole or a semi-enclosed hole, wherein, on the side wall of the needle groove arm 51, a plurality of beams are arranged in parallel along the height direction of the needle groove arm 51, and the plurality of beams The gap between them forms a semi-closed hole; or, the piercing hole 513 is a hole with a complete inner wall that penetrates the needle groove plate 5, and the hole is a fully closed hole.
  • the pin hole 513 in the pin groove plate 5 is a semi-closed hole
  • Figure 19 is a schematic structural diagram of the pin slot plate with all pin holes
  • Figure 20 is another perspective view of Figure 19 Schematic diagram of the structure
  • the needle hole 513 in the needle groove plate 5 in FIGS. 19 and 20 is a fully enclosed hole.
  • the position of the needle hole 513 corresponds to the position of the depth mark 511 one-to-one, and conforms to the needle insertion route set by the software in the ultrasound machine; the size of the needle hole 513 maintains a one-to-one relationship with the specification mark 512; the model of the needle hole 513 It can be selected according to actual needs.
  • the puncture needle or biopsy needle can be quickly moved out of the opening in the puncture hole 513 in parallel, and then The ultrasound probe and puncture stent can be quickly removed, and the puncture needle can be left alone in the human body for administration or treatment.
  • the needle groove plate 5 can have a variety of structural forms.
  • Figure 21 is a schematic structural diagram of the main body part;
  • Figure 22 is a structural schematic diagram of the mating part;
  • Figure 23 is a structural schematic diagram of the top buckle of the mating part;
  • Figure 24 is a schematic structural diagram of the bottom protrusion of the mating part.
  • the needle groove plate 5 can further adopt a split structure, that is, the needle groove arm 51 includes a main body part 53 and a mating part 54.
  • the mating surface of the mating part 54 is provided with a groove 5131 and the main body part 53
  • the abutting surface of the abutting surface and the mating portion 54 abut to form a closed hole.
  • the main body part 53 and the mating part 54 are connected by a connecting component;
  • the connecting component includes a hole 531 at the top of the body part 53 and a buckle 541 at the top of the mating part 54.
  • the buckle 541 includes a first mating surface perpendicular to the mating part 54 Flat plate 5411, the free end of the first flat plate 5411 is connected to the second flat plate 5412 arranged in parallel with the first flat plate 5411, the first flat plate 5411 and the second flat plate 5412 form a U-shaped structure, and the free end of the second flat plate 5412 extends to protrude from the mating part 54.
  • the surface is a plane away from the mating surface of the mating portion 54.
  • the upper surface of the second flat plate 5412 is provided with a convex structure 542.
  • the convex structure 542 has a fourth inclined surface 5421 and a fourth straight end surface 5422;
  • the bottom is provided with a docking platform 532 that is docked with the bottom of the mating portion 54, the docking platform 532 is provided with a groove 533, and the bottom of the mating portion 54 is provided with a protrusion 543 for inserting into the groove 533.
  • Figure 25 is a structural schematic diagram of the main body part and the mating part when assembled;
  • Figure 26 is a structural schematic diagram of the main body part and the mating part after being assembled; Insert into the groove 533, move the mating part 54 with the center points of the protrusion 543 and the groove 533, so that the mating surface of the mating part 54 fits the mating surface of the main body part 53, wherein, during the movement, the buckle 541 is inserted Into the hole 531, the second plate 5412 can be deformed downward (squeezing deformation or manual pressing deformation), and can be automatically reset, so that the protruding structure 542 passes through the hole 531 and then automatically resets, and finally the fourth finger end surface 5422 reaches Connecting to the hole 531 forms an assembly structure as shown in FIG.
  • the needle groove plate 5 adopts a split structure, and different types of matching parts 54 can be assembled with the main body part 53 during use to form different types of needle groove plates 5 to meet different usage requirements in biopsy operations.
  • the elasticity of the hoop 11 is adjustable, and it can be sleeved on ultrasonic probes of different sizes, which has high versatility;
  • the volume of the needle groove plate is reduced, thereby reducing the overall volume of the puncture stent.
  • the needle groove plate will not affect the operation when the doctor operates it, and it is convenient and flexible to use;
  • the needle groove plate After inserting the head of the ultrasound probe into the patient’s rectum, the needle groove plate can be tightly attached to the patient’s perineum. Due to the different postures of the patient, the degree of contact between the needle groove plate and the perineum is different.
  • the needle groove plate is fine-tuned backward, and the rod in the puncture bracket provided by the embodiment of the present invention can be adjusted telescopically, so that the puncture frame can be adjusted to the best use state, which is convenient for the doctor to use and improves the quality of the operation;
  • the puncture needle or biopsy needle can be quickly removed from the opening on the puncture hole 513 in parallel, so that the ultrasound probe and puncture holder can be quickly evacuated ,
  • the puncture needle can be left alone in the human body for administration or treatment.
  • the push button 3 is connected to the main body 1, and can move between the first position and the second position of the main body 1, and a clamping structure is provided between the push button 3 and the rod 4, and the push button 3 moves to In the first position, the push button 3 and the rod 4 are locked by the clamping structure, and when the push button 3 is moved to the second position, the push button 3 and the rod 4 are unlocked.
  • the main body 1 includes a hoop 11 and two spaced L-shaped walls 12, the L-shaped wall 12 includes a vertical wall 123 and a transverse wall 124, wherein the vertical wall 123 self-holds the hoop 11
  • the outer surface extends away from the hoop 11, and the two transverse walls 124 respectively extend from the free edges of the two vertical walls 123 opposite to each other, and the free sides are parallel to the first direction, so that the two L-shaped walls 12 and the hoop 11
  • the outer wall encloses the channel 13; the upper surface of the main arm 41 of the rod 4 has an upper boss 42 which protrudes upward so as to be located between the two transverse walls 124 and extends along the first direction.
  • the first locking method provided by the embodiment of the present invention is: as shown in FIGS. 1 to 3 and 7 to 12, two transverse walls 124 have a notch 122 at the same position in the first direction; the puncture bracket It also has two first elastic arms 121, the fixed end of the first elastic arm 121 is fixed on the inner wall of the entrance of the notch 122, and the first elastic arm 121 is parallel to the first direction, so that the first elastic arm 121 and the notch 122 A hole 120 is formed; the push button 3 includes a push button platform 31 and two fixed arms 32.
  • the fixed arm 32 is located on the lower surface of the push button platform 31 and is perpendicular to the push button platform 31.
  • the fixed arm 32 is inserted into the hole 120 and can be in the hole 120 slides along the first direction, so that the push button 3 is connected to the main body 1, and the push button 3 moves between the first position and the second position of the main body 1.
  • the clamping structure includes a convex point 1211 and a recess 421,
  • the free ends of the two first elastic arms 121 are provided with convex points 1211, and the two convex points 1211 protrude toward each other; a plurality of pits 421 are arranged in a row along the first direction along the two sidewall surfaces of the upper boss 42 Line;
  • the root of the fixed arm 32 has a fixed arm section 321 protruding to the entrance of the notch 122, when the push button 3 is in the first position, the fixed arm section 321 abuts on the free end of the first elastic arm 121 to make the convex point 1211 cannot be separated after being trapped in the recess 421, thereby restricting the rod 4 from sliding in the first direction in the channel 13.
  • the fixed arm 321 moves to the fixed end of the first elastic arm 121, so The bump 1211 is separated from the recess 421, so that the restriction of the rod 4 from sliding in the channel 13 along the first direction is released.
  • FIG. 27 is a schematic structural diagram of a puncture stent provided by the embodiment of the present invention.
  • an extension plate 33 is further added, that is, extension plates 33 are provided at both ends of the button platform 31, and the extension plate 33 is perpendicular to the lower surface of the button platform 31. And it is attached to the outer wall of the vertical wall 123; the side of the extension plate 33 away from the vertical wall 123 is provided with a pressing hand position 331.
  • the extension plate 33 can be held by hand, so as to facilitate the force operation on the push button platform 31.
  • FIG. 28 is a schematic structural diagram of a puncture stent provided by the embodiment of the present invention
  • FIG. 29 is a schematic structural diagram of the opening and the slot 422 in FIG. 28
  • one of the transverse arms is provided with an opening 1241; the push button 3 includes a first push button platform 34 and an inserting plate 341.
  • the inserting plate 341 is located on the lower surface of the first push button platform 34 and is perpendicular to The first push button platform 34, the insert plate 341 is inserted into the gap between the side wall of the upper boss 42 and the inner wall of the vertical wall 123 on the same side through the opening 1241, and can slide in the first vertical direction in the gap, thereby achieving
  • the push button 3 is connected to the main body 1, and the push button 3 moves between the first position and the second position of the main body 1;
  • a plurality of slots 422 are provided on the wall, and the plurality of slots 422 are arranged in a line along the first direction.
  • the inserting plate 341 is provided with an inserting portion 3411 on one side of the upper boss 42; the push button 3 is in the first position When the plug-in portion 3411 is located in the slot 422, and the plug-in board 341 is at least partially located in the opening 1241, thereby restricting the rod 4 from sliding in the first direction in the channel 13, and when the push button 3 is in the second position, the plug The portion 3411 is located outside the slot 422 so as to release the restriction of the rod 4 from sliding in the channel 13 along the first direction.
  • the moving direction of the first push button platform 34 is perpendicular to the first direction. In this way, the insertion portion 3411 can be directly inserted into the slot 422 without using an elastic arm structure.
  • the two transverse walls 124 are provided with openings 1241 at the same position in the first direction; the lower surface of the first push button platform 34 is provided with two spaced inserts.
  • the board 341, the plug-in portion 3411 is provided on the board 341 on the same side as the slot 422; the linear distance between the two plug-ins 341 is smaller than the linear distance between the bottoms of the two openings 1241.
  • the two plug-in boards 341 of the first push button platform 34 one is provided with a plug-in portion 3411, and the other is only a plate-like structure.
  • the plug-in board 341 without the plug-in portion 3411 serves as a guide and is located in the corresponding opening 1241
  • the reciprocating movement can further improve the stability of the first push button platform 34.
  • protruding elastic structures such as plastic strips, are respectively provided on both sides of the two insert plates 341, and the elastic structure is attached to the inner wall of the opening 1241 to act as a damping function to prevent the first push button platform 34 from moving randomly.
  • FIG. 31 is a schematic structural diagram of a puncture support provided by the embodiment of the present invention
  • FIG. 32 is a top view of the push button in the state without the cover 7 in FIG. 31.
  • at least one of the transverse walls 124 has a first notch 1242; the first notch 1242 is provided with a fourth elastic arm 1243, and the fixed end of the fourth elastic arm 1243 is fixed at the entrance of the first notch 1242.
  • the fourth elastic arm 1243 is parallel to the first direction, so that the fourth elastic arm 1243 and the first notch 1242 constitute a first hole 1244;
  • the push button 3 includes a second push button platform 35 and a first fixed arm 36.
  • a fixed arm 36 is connected to the lower surface of the second push button platform 35 through the link 4, the vertical arm 123 is provided with a first strip hole arranged along the first direction, and the second push button platform 35 is located on the vertical arm 123
  • the connecting rod 4 is located in the first strip hole, the first fixed arm 36 is located in the first hole 1244, and the first fixed arm 36 can slide in the first hole 1244 along the first direction;
  • the clamping structure includes The first convex point and the first recess 423, the free end of the fourth elastic arm 1243 is provided with a first convex point (not shown in the figure, the structure of the first convex point and the fourth elastic arm 1243 is the same as that of the first
  • the elastic arm 121 is the same as the convex point 1211), the first convex point protrudes toward the vertical arm 123; a plurality of first dimples 423 are arranged in a line along the first direction along the two sidewall surfaces of the upper boss 42;
  • the push button 3 is in the first position, a section of the first fixed arm abuts against the free end of the fourth elastic arm 1243, so that the first convex point cannot be separated after being trapped in the first recess 423, thereby restricting the rod 4 along the first
  • the push button 3 is in the second position, the first fixed arm moves to the fixed end of the fourth elastic arm 1243 to separate the first convex point from the first recess 423, thereby releasing the lever 4 from the inner edge of the channel 13
  • the push button 3 is arranged on the outer side of the vertical arm 123. During the puncture operation, the push button 3 can avoid being located directly below the puncture needle, thereby reducing the impact of the puncture on the operation of the push button 3.
  • the puncture frame provided by the embodiment of the present invention further includes a cover plate 7. 1242 on.
  • the cover plate 7 blocks the first notch 1242, the fourth elastic arm 1243 and other structures to prevent the locking structure from being exposed, thereby improving the stability of the locking.
  • FIG. 33 is a schematic structural diagram of a puncture stent provided by an embodiment of the present invention
  • FIG. 34 is a schematic structural diagram of the push button 3 in FIG. 33; Partial cross-sectional view when the push button is locked.
  • the push button 3 includes a third push button platform 37 and a connecting block 371.
  • the connecting block 371 is connected to the lower surface of the third push button platform 37.
  • the second strip hole is arranged in one direction
  • the third push button platform 37 is located outside the vertical arm 123
  • the connecting block 371 is located in the second strip hole.
  • the clamping structure includes a lock block 3711 and a lock groove 424.
  • the connecting block 371 is provided with a lock block 3711 on the side away from the third push button platform 37.
  • the lock block 3711 is located on the lower surface of the transverse wall 124 and the main arm 41 of the rod 4
  • the upper surface of the main arm 41 of the lever 4 is located on the same side of the upper boss 42 with a plurality of lock grooves 424 arranged along the first direction; when the push button 3 is in the first position, the lock block 3711 is located in the lock groove 424, thereby restricting the rod 4 from sliding in the first direction in the channel 13. The restriction of sliding in the first direction.
  • the push button 3 moves along the height direction of the vertical arm 123 on the outer wall of the vertical arm 123, wherein the two ends of the connecting block 371 are provided with elastic locking hooks 3712 along the first direction perpendicular to the vertical arm 123.
  • the free end of 3712 abuts against the inner wall of the second strip hole, the elastic locking hook 3712 plays a damping role, and the push button 3 moves at will.
  • the embodiment of the present invention provides five locking methods, including different force application positions, different locking directions, locking positions, operating positions, etc., which can meet more operation requirements and further improve the convenience of product use.
  • FIG. 36 is a schematic structural diagram of the biopsy device; as shown in FIG. 36, the hoop 11 of the main body 1 is sleeved on the outer wall of the ultrasound probe .
  • the hoop 11 is provided with a clamping groove 113 that is clamped with the limiting protrusion on the outer wall of the ultrasonic probe; at the same time, the beam 45
  • the lower surface of the beam 45 is in contact with the outer wall of the ultrasonic probe 200.
  • the lower surface of the beam 45 is set as an arc surface with the same arc as the outer wall of the ultrasonic probe 200.

Abstract

一种穿刺支架包括主体(1)、杆(4)以及针槽板(5)。主体(1)能够连接超声探头并且具有通道(13)，通道(13)的长度小于杆(4)的长度。杆(4)能够从自身第一端进入通道(13)内，并且能沿第一方向在通道(13)内往复滑动，第一方向平行于杆(4)的延伸方向。针槽板(5)固定在杆(4)的第二端，针槽板(5)上设有至少一个平行第一方向的穿针孔(513)。主体(1)包括抱箍(11)和两个具有间隔的L形壁(12)，抱箍(11)用于连接超声探头。根据本技术方案，不仅优化了穿刺支架的结构，缩小其体积，而且降低了制造成本。

Description

穿刺支架及活检装置 技术领域
本发明涉及医疗用品技术领域，特别地涉及一种穿刺支架及活检装置。
背景技术
随着近年来人们生活方式的改变，男性前列腺发病率呈持续上升趋势，严重威胁人民群众的健康和生活质量，尤其是在老年男性群体中属于一种常见的疾病。
目前，一般采用前列腺活检术对前列腺疾病进行检测排查，在超声活检时，需要在前列腺不同的部位取出少量的样本组织，以达到明确诊断的目的，活检术的创伤小，准确率高，因此得到了临床的广泛应用。常用的活检取样途径为经直肠途径和经会阴途径；其中，经直肠途径存在一些弊端，主要包括：1.超声探头和穿刺支架是通过直肠入口到达前列腺位置，直肠内部的细菌容易造成偏高的感染风险；2.穿刺位置受限存在一定的盲区。因此，经会阴穿刺是目前前列腺活检的主流方法，其具备可无菌操作、感染风险小、取样全面等优点。
经会阴穿刺操作需要穿刺支架配合超声探头使用，目前医院使用的经会阴穿刺支架主要是采用类似网格筛板一样的穿刺支架，采用定制的步进器固定后才可以用于穿刺手术；存在以下缺点：1.需要使用特定的步进器，步进器的费用昂贵，且体积大，影响手术中医生的灵活操作；2.无法做到手术中针架分离功能；3.筛板穿刺架体积大放置于会阴处严重增加手术中病人的不适感。
发明内容
有鉴于此，本发明提供了一种穿刺支架及活检装置，具有结构简单，成本低，操作灵活方便，手术中可实现穿刺针分离等优点。
本发明的一个方面，提供了一种穿刺支架，包括主体、杆、以及针槽板，其中：主体能够连接超声探头并且具有通道，通道的长度小于杆的长度；杆能够从自身第一端进入通道内，并且能沿第一方向在通道内往复滑动，该第一方向平行于杆的延伸方向；针槽板固定在杆的第二端，针槽板上设有至少一个平行所述第一方向的穿针孔。
可选地，主体包括抱箍和两个具有间隔的L形壁；抱箍用于连接超声探头；L形壁包括竖壁和横壁，其中竖壁自抱箍外表面向远离抱箍的方向延伸，两个横壁分别自两个竖壁的自由边相向延伸，该自由边平行于所述第一方向，从而两个L形壁与抱箍的外壁围成通道。
可选地，抱箍包括具有拱形截面的抱箍主体以及与抱箍主体连接的呈拱形的扳手，L形壁位于抱箍主体上；抱箍主体的一个边缘附近与扳手的一端转动连接，抱箍主体的另一个边缘附近设有第一阶梯棱，扳手的另一端设有第二阶梯棱，该第二阶梯棱用于与第一阶梯棱卡接从而使抱箍主体和扳手形成闭合的环。
可选地，杆的主臂的上表面具有上凸台，上凸台向上凸出从而位于两个横壁之间，并沿所述第一方向延伸；多个凹坑沿上凸台的两侧壁表面沿所述第一方向排成一条线；两个横壁在所述第一方向的同一位置处具有缺口；所述穿刺支架还具有推钮和两个第一弹性臂，其中：第一弹性臂的固定端固定在缺口的入口处的内壁，第一弹性臂平行于所述第一方向，从而第一弹性臂与缺口构成孔，两个第一弹性臂的自由端设有凸点，两个凸点朝向对方凸起；推钮包括推钮平台和两个固定臂，固定臂位于推钮平台的下表面并且垂直于推钮平台，固定臂插入孔内，且能在孔内沿所述第一方向滑动，固定臂的根部具有向缺口的入口处凸起的固定臂一段，固定臂一段用于抵接第一弹性臂的自由 端，使凸点陷入凹坑之后无法分离，从而限制杆在通道内沿所述第一方向滑动。
可选地，固定臂一段上设有向远离推钮平台方向延伸的固定臂二段，固定臂二段与固定臂一段之间形成平行于所述第一方向U型凹槽，主臂的两侧边缘的一部分位于U型凹槽内；推钮平台的上表面设有手位槽和/或标识部。
可选地，杆的下方具有沿所述第一方向延伸的凹槽，凹槽与抱箍的外壁之间形成容置空间；抱箍的壁上设有单孔，单孔内设有第二弹性臂，单孔位于通道内的抱箍的壁上，并且靠近通道的远离针槽板的一端；第二弹性臂平行于所述第一方向，第二弹性臂的固定端固定在抱箍的壁的端面，第二弹性臂的自由端设有凸起结构，凸起结构包括一个高度大于抱箍的壁厚的第一直端面，从而凸起结构是向通道的内部凸出并且进入所述容置空间；杆的第一端具有垂直于所述第一方向的端壁，在杆的滑动过程中端壁内侧能够被第一直端面阻挡从而停止滑动。
可选地，主臂的前端设有两个并行的沿所述第一方向延伸的副臂，两个副臂之间设有限定间隔，两个副臂的内侧各设有一个凸出的挡壁，两个挡壁向对方凸出；主臂的下表面设有沿其长度方向设置的下凸台，下凸台的表面与抱箍的外壁贴合，下凸台延伸至副臂的下方，两个副臂远离主臂的一端的底部连接至梁，两个副臂之间设有沿杆滑动方向设置的第三弹性臂，第三弹性臂的两端分别与主臂的端部以及梁连接，第三弹性臂的上表面设有凸起结构，该凸起结构包括第二斜面和第二直端面；针槽板包括针槽臂和两个插接臂，两个插接臂沿针槽臂的宽度方向设置在针槽臂的底部的边缘，针槽臂底面设有凸起结构，凸起结构位于两个插接臂之间，凸起结构包括第三斜面和第三直端面；插接臂插接到两副臂之间，且插接臂的上表面与挡壁的下表面贴合，第二斜面和第二直端面、以及第三斜面和第三直端面的位置设置使得第 二直端面与第三直端面抵接，从而插接臂无法从两副臂之间退出。
可选地，梁的两端分别向所述第一方向的两侧方向突出，从而能与抱箍的靠近杆的第二端的端面抵接形成限位。
可选地，在针槽臂的侧壁上，沿针槽臂的高度方向平行地设置有多个梁，穿针孔为所述多个梁之间的空隙；或者穿针孔具有完整的内壁。
可选地，针槽臂包括主体部分和配合部分，配合部分的对接面上设有多个平行的凹槽，多个凹槽沿针槽臂的高度方向分布，并且沿针槽臂宽度方向贯通针槽臂；主体部分的对接面与配合部分的对接面贴合形成具有完整内壁的孔。
本发明的另一个方面，还提供了一种穿刺支架，包括主体、杆和推钮；主体具有通道；杆能够从自身第一端进入通道内，并且能沿第一方向在通道内往复滑动，该第一方向平行于杆的延伸方向；推钮与主体连接，并能在主体的第一位置和第二位置间移动，以及推钮与杆之间设有卡接结构，推钮移动至第一位置时，推钮与杆通过卡接结构锁紧，推钮移动至第二位置时，推钮与杆解除锁紧。
可选地，主体包括抱箍和两个具有间隔的L形壁，L形壁包括竖壁和横壁，其中竖壁自抱箍外表面向远离抱箍的方向延伸，两个横壁分别自两个竖壁的自由边相向延伸，该自由边平行于所述第一方向，从而两个L形壁与抱箍的外壁围成通道；杆的主臂的上表面具有上凸台，上凸台向上凸出从而位于两个横壁之间，并沿所述第一方向延伸。
可选地，两个横壁在所述第一方向的同一位置处具有缺口；所述穿刺支架还具有两个第一弹性臂，第一弹性臂的固定端固定在缺口的入口处的内壁，第一弹性臂平行于所述第一方向，从而第一弹性臂与 缺口构成孔；推钮包括推钮平台和两个固定臂，固定臂位于推钮平台的下表面并且垂直于推钮平台，固定臂插入孔内，且能在孔内沿所述第一方向滑动，从而实现推钮与主体连接，以及推钮在主体的第一位置和第二位置间移动；卡接结构包括凸点和凹坑，两个第一弹性臂的自由端设有凸点，两个凸点朝向对方凸起；多个凹坑沿上凸台的两侧壁表面沿所述第一方向排成一条线；固定臂的根部具有向缺口的入口处凸起的固定臂一段，推钮在第一位置时，固定臂一段抵接在第一弹性臂的自由端，使凸点陷入凹坑之后无法分离，从而限制杆在通道内沿所述第一方向滑动，推钮在第二位置时，固定臂一段移动至第一弹性臂的固定端，使凸点与凹坑分离，从而解除杆在通道内沿所述第一方向滑动的限制。
可选地，推钮平台的两侧端设有延伸板，延伸板与推钮平台的下表面垂直，并且与竖壁的外壁贴合；延伸板远离竖壁的一侧设有按压手位。
可选地，其中一个横臂上设有开口；推钮包括第一推钮平台和插板，插板位于第一推钮平台的下表面并且垂直于第一推钮平台，插板通过开口插入上凸台的侧壁与同侧的竖壁的内壁之间的缝隙内，且能在缝隙内沿垂直第一方向滑动，从而实现推钮与主体连接，以及推钮在主体的第一位置和第二位置间移动；卡接结构包括插接部和插槽，上凸台与开口同侧的侧壁上设有多个插槽，多个插槽沿所述第一方向排成一条线，插板朝向上凸台的一侧设置插接部；推钮在第一位置时，插接部位于插槽内，并且插板至少部分位于开口内，从而限制杆在通道内沿所述第一方向滑动，推钮在第二位置时，插接部位于插槽外，从而解除杆在通道内沿所述第一方向滑动的限制。
可选地，两个横壁在所述第一方向的同一位置处均设有开口；第一推钮平台的下表面设有两个间隔设置的插板，插接部设于与插槽同侧的插板上；两块插板之间的直线距离小于两个开口底部之间的直线 距离。
可选地，至少一个横壁上具有第一缺口；第一缺口内设有第四弹性臂，第四弹性臂的固定端固定在第一缺口的入口处的内壁，第四弹性臂平行于所述第一方向，从而第四弹性臂与第一缺口构成第一孔；推钮包括第二推钮平台和第一固定臂，第一固定臂通过连杆与第二推钮平台的下表面连接，竖臂上设有沿所述第一方向设置的第一条形孔，第二推钮平台位于竖臂的外侧，连杆位于第一条形孔内，第一固定臂位于第一孔内，第一固定臂能在第一孔内沿所述第一方向滑动；卡接结构包括第一凸点和第一凹坑，第四弹性臂的自由端设有第一凸点，第一凸点朝向竖臂凸起；多个第一凹坑沿上凸台的两侧壁表面沿所述第一方向排成一条线；第一固定臂的根部具有向第一缺口的入口处凸起的第一固定臂一段，推钮在第一位置时，第一固定臂一段抵接在第四弹性臂的自由端，使第一凸点陷入第一凹坑之后无法分离，从而限制杆在通道内沿所述第一方向滑动，推钮在第二位置时，第一固定臂一段移动至第四弹性臂的固定端，使第一凸点与第一凹坑分离，从而解除杆在通道内沿所述第一方向滑动的限制。
可选地，还包括盖板，盖板的下表面与横壁的上表面固定连接，从而使盖板封盖在通道的第一缺口上。
可选地，推钮包括第三推钮平台和连接块，连接块与第三推钮平台的下表面连接，竖臂上设有沿垂直所述第一方向设置的第二条形孔，第三推钮平台位于竖臂的外侧，连接块位于第二条形孔内，连接块能在第二条形孔内沿垂直所述第一方向滑动；卡接结构包括锁块和锁槽，连接块远离第三推钮平台的一面设有锁块，锁块位于横壁的下表面和杆的主臂的上表面之间；杆的主臂的上表面位于上凸台的同一侧设有多个沿所述第一方向设置的锁槽；推钮在第一位置时，锁块位于锁槽内，从而限制杆在通道内沿所述第一方向滑动，推钮在第二位置时，锁块与锁槽分离，从而解除杆在通道内沿所述第一方向滑动的限制。
可选地，连接块两侧端沿垂直所述第一方向设有弹性锁钩，弹性锁钩的自由端与第二条形孔的内壁抵接。
本发明的再一个方面，还提供一种活检装置，包括超声探头和上述穿刺支架；所述穿刺支架的抱箍套设在超声探头的外壁上。
可选地，所述超声探头的外壁上设有限位凸起，抱箍上设有与限位凸起卡接的卡槽。
根据本发明提供的技术方案，利用针槽板取代现有的正方形穿刺架，同时省去步进器结构，不仅优化了穿刺支架的结构，缩小其体积，而且降低了制造成本；杆与主体之间可灵活伸缩操作，使得针槽板的位置可调，进而可避免针槽板顶压病人会阴处，降低穿刺过程的不适感；进一步的，穿刺针可与穿刺支架和超声探头分离，利于医生灵活操作。
附图说明
为了说明而非限制的目的，现在将根据本发明的优选实施例、特别是参考附图来描述本发明，其中：
图1为本发明实施方式提供的一种穿刺支架的结构示意图；
图2为主体的结构示意图；
图3为主体的另一视角的结构示意图；
图4为扳手的结构示意图；
图5为扳手另一视角的结构示意图；
图6为扳手增加胶垫的结构示意图；
图7为推钮的结构示意图；
图8为推钮另一视角的结构示意图；
图9为杆的结构示意图；
图10为杆与针槽板连接的结构示意图；
图11为主体顶部的结构示意图；
图12为第一弹性臂处沿第一方向的剖视图；
图13为杆下表面的结构示意图；
图14为杆另一视角的结构示意图；
图15为杆前端的剖视图；
图16为半包穿针孔的针槽板的结构示意图；
图17为图16另一视角的结构示意图；
图18为针槽板底部的结构示意图；
图19为全包穿针孔的针槽板的结构示意图；
图20为图19另一视角的结构示意图；
图21为主体部分的结构示意图；
图22为配合部分的结构示意图；
图23为配合部分顶部卡扣的结构示意图；
图24为配合部分底部凸起的结构示意图；
图25为主体部分和配合部分组装时的结构示意图；
图26为主体部分和配合部分组装后的结构示意图；
图27为本发明实施方式提供的一种穿刺支架的结构示意图；
图28为本发明实施方式提供的一种穿刺支架的结构示意图；
图29为图28中开口及插槽处的结构示意图；
图30为图28中第一推钮平台的结构示意图；
图31为本发明实施方式提供的一种穿刺支架的结构示意图；
图32为图31中无盖板状态下推钮处的俯视图；
图33为本发明实施方式提供的一种穿刺支架的结构示意图；
图34为图33中推钮的结构示意图；
图35为图33中推钮锁定时的局部剖视图；
图36为本发明实施方式提供的一种活检装置的结构示意图。
图中：
1：主体；2：扳手；3：推钮；4：杆；5：针槽板；6：胶垫；7：盖板；
11：抱箍；12：L形壁；13：通道；111：第一阶梯棱；112：旋 转轴；113：卡槽；120：孔：121：第一弹性壁；122：缺口；123：竖壁；124：横壁；1211：凸点；1241：开口；1242：第一缺口；1243：第四弹性臂；1244：第一孔；130：凸起结构；131：第二弹性壁；132：第一斜面；133：第一直端面；134：单孔；
21：旋转套；22：拱形部；23：第二阶梯棱；24：手位；
31：推钮平台；32：固定臂；33：延伸板；34：第一推钮平台；35：第二推钮平台；36：第一固定臂；37：第三推钮平台；311：手位槽；321：固定臂一段；322：U型凹槽；323：固定臂二段；331：按压手位；341：插板；3411：插接部；371：连接块；3711：锁块；3712：弹性锁钩。
41：主臂；42：上凸台；43：下凸台；44：第三弹性臂；45：梁；46：端壁；47：凹槽；411：副臂；421：凹坑；422：插槽；423：第一凹坑；424：锁槽；440：凸起结构；441：第二斜面；442：第二直端面；461：端臂内侧；4111：挡臂；
51：针槽臂；52：插接臂；53：主体部分；54：配合部分；511：深度标识；512：规格标识；513：穿针孔；520：凸起结构；521：第三斜面；522：第三直端面；531：孔；532：对接平台；533：凹槽；541：卡扣；542：凸起结构；543：凸起；5411：第一平板；5412：第二平板；5413：把手；5421：第四斜面；5422：第四直端面；5131:凹槽；
100：穿刺支架；200：超声探头。
具体实施方式
本发明实施方式中，穿刺支架结构得到有效的优化，不仅可以缩小体积，降低成本，而且利于医生灵活操作，以及降低病人使用的不适感，以下具体加以说明。
图1为本发明实施方式提供的一种穿刺支架的结构示意图，如图1所示，本发明提供的穿刺支架，包括主体1、扳手2、推钮3、杆4、 以及针槽板5；主体1和扳手2用于连接超声探头，杆4的第一端插接在主体1上，第二端连接针槽板4，杆4可沿其延伸方向来回滑动(按图中视角即为左右方向，以下将该滑动方向称作“第一方向”)，在滑动过程中，推钮3可对杆4进行锁定。以下对该穿刺支架的结构作进一步说明。
图2为主体的结构示意图。如图2所示，主体1包括抱箍11和两个具有间隔的L形壁12；抱箍11用于连接超声探头；L形壁12包括竖壁123和横壁124，其中竖壁123自抱箍11外表面向远离抱箍11的方向(按图中视角即为向上)延伸，两个横壁124分别自两个竖壁123的自由边相向延伸，该自由边平行于第一方向，从而两个L形壁12与抱箍11的外壁围成通道13。
图3为主体的另一视角的结构示意图，如图2和图3所示，按图中视角，L形壁12设置在抱箍11的抱箍主体的上方，抱箍主体的一侧设有第一阶梯棱111(示于图2)，另一侧设有旋转轴112(示于图3)。
抱箍11还包括用于与抱箍主体连接的扳手2；图4为扳手的结构示意图；图5为扳手另一视角的结构示意图；如图4和图5所示，扳手的主体为拱形部22，拱形部22具有一定的弹性变形能力。拱形部22的一端设有旋转套21，另一端设有用于与第一阶梯棱111卡接的第二阶梯棱23，其中，在第二阶梯棱23处还设有手位24。
旋转套21为一个设有开口的圆筒形，该开口的宽度小于圆筒内径，且旋转套21具有一定的弹性形变能力从而使开口宽度可变，进而使旋转套21能与连接轴112卡合在一起，使得扳手2可围绕旋转轴112转动一定范围。第一阶梯棱111可以与扳手2上设置的第二阶梯棱23咬合，二者的各阶梯的倾斜方向使得二者在接触状态下只能以抱箍内径缩小的方向互相移动，如需扩大抱箍内径则需扳动扳手2的另一端从而使第一阶梯棱111与第二阶梯棱23分离。这种方式使得穿刺支架 在套在超声探头上之后，只需用操作者的手的虎口处握住抱箍然后施力即可收紧抱箍，因此易于控制形成的抱箍11的大小，并且收紧之后无法自行放松。另外多阶的阶梯棱使得抱箍可适用于穿刺支架的多种直径，从而提高了穿刺支架的适用性。
如图2至图5所示及上述说明，抱箍主体和扳手2之间为分体结构，通过扳手2的开启或关闭抱紧超声探头；另外，还可将抱箍主体和扳手2设置为一体结构，即抱箍主体和扳手2围成一个内径不变的闭环，利用抱箍内表面和超声探头外表面之间的摩擦力，在穿刺支架与超声探头连接时，将闭环结构套设在超声探头上。
图6为扳手增加胶垫的结构示意图，如图6所示，在拱形部22的内壁上沿其弧度方向设置胶垫6，软胶垫6为橡胶或TPE，TPU等软性材质制成，其与拱形部22固定连接，如粘接；通过设置胶垫6结构，可以让穿刺支架更加好的装配，增加穿刺支架与超声探头之间的摩擦，装配的更加的稳固，另外，由于胶垫6为弹性体材质，因此安装和拆卸穿刺支架时，可以更好的保护超声探头不被刮伤和损坏。
图7为推钮的结构示意图，图8为推钮另一视角的结构示意图；如图7和图8所示，推钮3包括推钮平台31和两个固定臂32，固定臂32位于推钮平台31的下表面并且垂直于推钮平台31。推钮平台31的上表面设有手位槽311和/或标识部。使用时手位槽311可增加手指与其之间的摩擦力，标识部为文字和/图案信息，方便使用者得知推钮3的功能和操作方法。
图9为杆的结构示意图，如图9所示，杆4包括主臂41、设置在主臂41上方的上凸台42、设置在主臂41下方的下凸台43。上凸台42和下凸台43沿主臂41的长度方向延伸，且三者为一体结构，即杆4截面形状类似于“+”字。杆4能够从自身第一端(按图9视角为近端)进入通道13内，通道13的长度小于杆4的长度，这样在杆4进入通 道13之后有一部分位于通道13之外，可以安装针槽板；杆4能沿第一方向在通道13内往复滑动。此状态下，上凸台42位于两个横壁124之间，下凸台43的表面与抱箍11的外壁贴合。
图10为杆与针槽板连接的结构示意图；如图10所示，针槽板5固定在杆4的第二端(即图9中的远端)，针槽板5上设有至少一个平行于第一方向的穿针孔513。针槽板的结构在后文中加以说明。
本发明实施方式中，可利用推钮3对杆4进行锁定，从而限定杆4在主体1上的伸缩位置，达到调节针槽板5位置的目的。如图9和图10所示，多个凹坑421沿上凸台42的两侧壁表面沿上述第一方向排成一条线。图11为主体顶部的结构示意图；图12为第一弹性臂处沿第一方向的剖视图。如图2、图3、图11和图12所示，两个横壁124在第一方向的同一位置处具有缺口122；第一弹性臂121的固定端固定在缺口122的入口处的内壁，第一弹性臂121平行于第一方向，从而第一弹性臂121与缺口122构成孔120。两个第一弹性臂121的自由端设有凸点1211，两个凸点1211朝向对方凸起。推钮3与主体1连接时，固定臂32插入孔120内，且能在孔120内沿第一方向滑动，固定臂32的根部具有向缺口122的入口处凸起的固定臂一段321，固定臂一段321位于第一弹性臂121的自由端时其与第一弹性臂121抵接，此时固定臂一段321可限制第一弹性臂121的自由端张开，进而使凸点1211无法由凹坑421脱离，第一弹性臂121锁紧杆4，以达到限制杆4沿第一方向自由滑动的目的；当固定臂一段321滑动至第一弹性臂121的另一端(远离自由端)时，第一弹性臂121的自由端脱离固定臂一段321的限制，此时，手动地拉动杆4，在外力作用下凸点1211可由凹坑421内脱离，持续对杆4施加拉力，凸点1211重复陷入凹坑421、脱离凹坑421的动作，直到杆4移动至目标位置，此时，凸点1211陷入凹坑421，将固定臂一段321移动至第一弹性臂121的自由端，固定臂一段321再次实现对杆4的锁紧，完成杆4的位置调节。
如图8所示，固定臂一段321上设有向远离推钮平台31方向延伸的固定臂二段323，固定臂二段323与固定臂一段321之间形成平行于所述第一方向U型凹槽322，在图1所示状态下，主臂41的两侧边缘的一部分位于U型凹槽322内。
本发明实施方式中，推钮3在非锁定状态下，杆4可在主体1的通道13内自由滑动。为了避免杆4与主体1分离脱落，两者之间还设置有限位结构。图13为杆下表面(按图1视角)的结构示意图，如图13所示，杆4的下方(图13中，杆4为上述的下表面向上放置的翻转状态)具有沿前述第一方向延伸的凹槽47，凹槽47能与抱箍11的外壁之间形成容置空间。如图12所示，抱箍11的壁上设有单孔134，单孔134内设有第二弹性臂131。第二弹性臂131具有一定的弹性形变的能力，单孔134位于通道13内的抱箍11的壁上，并且靠近通道13的远离针槽板5(参考图1)的一端；第二弹性臂131平行于第一方向，第二弹性臂131的固定端固定在抱箍11的壁的端面，第二弹性臂131的自由端设有凸起结构130，凸起结构130包括一个高度大于抱箍11的壁厚的第一直端面133和第一斜面132，从而凸起结构130是向通道13的内部凸出并且进入凹槽47与抱箍11的外壁之间形成的容置空间；如图13所示，杆4的第一端具有垂直于第一方向的端壁46，再参考图11，当杆4向图11中右上方在通道13中滑动过程中端壁46外侧经过第一斜面132，在杆4向图11中左下方在通道13中滑动过程中，内侧461能够被第一直端面133阻挡从而使杆4停止滑动，进而使杆4无法从通道13中退出。另外，凸起结构130被封闭在上述容置空间内，使得杆4难以从通道13中拆卸，有助于实现穿刺支架的一次性使用，提高卫生安全性。
本发明实施方式中，针槽板5与杆4的第二端卡接。图14为杆另一视角的结构示意图；图15为杆前端的剖视图。如图14和15所示，主臂41的前端设有两个在主臂41的两侧边缘处并行的沿第一方向延伸的副臂411，两个副臂411自主臂41的两侧边缘处延伸因此二者之 间具有间隔。两个副臂411的内侧各设有一个凸出的挡壁4111，两个挡壁4111向对方凸出。下凸台43延伸至副臂411的下方，两个副臂411远离主臂41的一端的底部连接至梁45。两个副臂411之间设有沿杆4滑动方向设置的第三弹性臂44，第三弹性臂44的两端分别与主臂41的端部以及梁45连接，第三弹性臂44的上表面设有凸起结构440，该凸起结构440包括第二斜面441和第二直端面442。
图16为半包穿针孔的针槽板的结构示意图；图17为图16另一视角的结构示意图；图18为针槽板底部的结构示意图；如图16至图18所示，针槽板5包括针槽臂51和两个插接臂52，其中，针槽臂51上设有深度标识511和规格标识512，两个插接臂52沿针槽臂51的宽度方向设置在针槽臂51的底部的边缘。针槽臂51底面设有凸起结构520，凸起结构520位于两个插接臂52之间。凸起结构520包括第三斜面521和第三直端面522。插接臂52插接到两副臂411之间，且插接臂52的上表面与挡壁4111的下表面贴合，第二斜面441和第二直端面442、以及第三斜面521和第三直端面522的位置设置使得第二直端面442与第三直端522面抵接，从而插接臂52无法向左(此处参考图10)移动，从而无法自两副臂411之间退出。另一方面，插接臂52向右移动时又被主臂4的上凸台42阻挡，从而使针槽板5被固定在主臂4上。另外还可以看出，因为无法从外部接触到互相抵接的第二直端面442与第三直端522面，所以在不造成破坏的情况下该抵接状态无法解除，由此实现了医疗器材的使用一次性，提高了卫生安全性。
其中，如图14所示，梁45的两端分别向左右方向突出，从而能与抱箍11的靠近杆4的第二端的端面抵接形成限位。该限位结构与杆4另一端的端壁46限位结构配合使得杆4的两端均有限位，使得杆4不会与主体1相分离。这同样有助于实现医疗器材的使用一次性。
本发明实施方式中，穿针孔513为全封闭孔或半封闭孔，其中，在针槽臂51的侧壁上，沿针槽臂51的高度方向平行地设置有多个梁， 多个梁之间的空隙形成半封闭孔；或者，穿针孔513为具有完整的内壁的贯穿针槽板5的孔，该孔为全封闭孔。如图16和图17所示，该针槽板5中的穿针孔513为半封闭孔；图19为全包穿针孔的针槽板的结构示意图；图20为图19另一视角的结构示意图；图19和20中的针槽板5中的穿针孔513为全封闭孔。穿针孔513的位置和深度标识511位置一一对应，且符合超声机器内软件设置的进针路线；穿针孔513的大小与规格标识512保持一一对应的关系；穿针孔513的型号可根据实际需求进行选择，其中，采用半封闭孔的结构时，在医生需要穿刺针与穿刺针架分离时，可以快速的将穿刺针或活检针从穿刺孔513上的开口处平行移出，进而可以快速撤下超声探头和穿刺支架，单独将穿刺针留在人体内进行给药或治疗等操作。
由于针槽板5为独立的结构，其卡接在杆4上即可，因此，针槽板5可以具有多种结构形式。图21为主体部分的结构示意图；图22为配合部分的结构示意图；图23为配合部分顶部卡扣的结构示意图；图24为配合部分底部凸起的结构示意图。如图21至图24所示，针槽板5可进一步采用分体结构，即针槽臂51包括主体部分53和配合部分54，配合部分54的对接面上设有凹槽5131，主体部分53的对接面与配合部分54对接形成封闭的孔。
其中，主体部分53和配合部分54通过连接组件连接；连接组件包括位于主体部分53顶部的孔531和位于配合部分54顶部的卡扣541，卡扣541包括垂直于配合部分54对接面的第一平板5411，第一平板5411的自由端连接与第一平板5411平行设置的第二平板5412，第一平板5411和第二平板5412形成U型结构，第二平板5412的自由端延伸凸出配合部分54的表面，该表面为远离配合部分54对接面的平面，第二平板5412的上表面设有凸起结构542，凸起结构542具有第四斜面5421和第四直端面5422；主体部分53的底部设有与配合部分54底部对接的对接平台532，对接平台532上设有凹槽533，配合部分54的底部设有用于插接在凹槽533内的凸起543。
图25为主体部分和配合部分组装时的结构示意图；图26为主体部分和配合部分组装后的结构示意图；如图25所示，主体部分53和配合部分54组装置时，先将凸起543插入到凹槽533中，以凸起543和凹槽533中心点移动配合部分54，使配合部分54的对接面与主体部分53的对接面贴合，其中，移动过程中，卡扣541插接到孔531内，第二平板5412可向下产生形变(挤压形变或手动按压形变)，且可自动复位，使得凸起结构542穿过孔531后又自动复位，最终第四指端面5422抵接在孔531上形成如图26所示的组装结构。当进行拆分时，手按第二平板5412上的把手5413使第二平板5412形变，此时凸起结构542可脱离孔531周边侧壁的封挡，进而使卡扣541与孔531分离，最后，将配合部分54底部的凸起543由凹槽533中拔出即可。
针槽板5采用分体结构，其使用时可以将不同型号的配合部分54与主体部分53组装，进而形成不同型号的针槽板5，以满足活检手术中不同的使用需求。
本实施方式提供的穿刺支架，具备如下优点：
1.抱箍11松紧可调，能套设在不同尺寸的超声探头上，具有较高的通用性；
2.针槽板的安装无需专用的步进器，节约成本；
3.针槽板体积缩小，进而缩小穿刺支架整体的体积，医生操作时针槽板不会影响操作，使用方便灵活；
4.将超声探头的头部插入病人直肠后，针槽板可以紧紧的贴合在病人的会阴部，由于病人的体态不同，针槽板与会阴部的抵接程度不同，如体胖者需要将针槽板向后微调，本发明实施方式提供的穿刺支架中的杆可伸缩调整，进而可以将穿刺架调整到最佳使用状态，方便医生使用，提高手术的质量；
5.针槽板5上设置的一排穿刺孔513，通过旋转超声探头带动穿刺支架旋转，因此可以形成一个扇形穿刺区域，进而可以满足前列腺任 何部位的精准穿刺，无穿刺盲区；
6.使用半封闭式穿刺孔513在医生需要针架分离时，可以快速的将穿刺针或活检针从穿刺孔513上的开口处平行移出，使得超声探头和穿刺支架就可以被快速的撤离掉，可单独将穿刺针留在人体内进行给药或治疗等操作。
本发明实施方式中，推钮3与主体1连接，并能在主体1的第一位置和第二位置间移动，以及推钮3与杆4之间设有卡接结构，推钮3移动至第一位置时，推钮3与杆4通过卡接结构锁紧，推钮3移动至第二位置时，推钮3与杆4解除锁紧。其中，推钮3与杆4之间的锁定方式包括多种，以下进行详细描述。
作为推钮3与杆4之间的基础结构，主体1包括抱箍11和两个具有间隔的L形壁12，L形壁12包括竖壁123和横壁124，其中竖壁123自抱箍11外表面向远离抱箍11的方向延伸，两个横壁124分别自两个竖壁123的自由边相向延伸，该自由边平行于所述第一方向，从而两个L形壁12与抱箍11的外壁围成通道13；杆4的主臂41的上表面具有上凸台42，上凸台42向上凸出从而位于两个横壁124之间，并沿所述第一方向延伸。基于上述结构，推钮3与杆4之间能够通过卡接结构实现第一位置和第二位置之间移动，并实现锁紧和解锁功能。
本发明实施方式提供的第一种锁定方式为：如图1至图3、图7至图12所示，两个横壁124在所述第一方向的同一位置处具有缺口122；所述穿刺支架还具有两个第一弹性臂121，第一弹性臂121的固定端固定在缺口122的入口处的内壁，第一弹性臂121平行于所述第一方向，从而第一弹性臂121与缺口122构成孔120；推钮3包括推钮平台31和两个固定臂32，固定臂32位于推钮平台31的下表面并且垂直于推钮平台31，固定臂32插入孔120内，且能在孔120内沿所述第一方向滑动，从而实现推钮3与主体1连接，以及推钮3在主体1的第一位置和第二位置间移动；卡接结构包括凸点1211和凹坑421，两 个第一弹性臂121的自由端设有凸点1211，两个凸点1211朝向对方凸起；多个凹坑421沿上凸台42的两侧壁表面沿所述第一方向排成一条线；固定臂32的根部具有向缺口122的入口处凸起的固定臂一段321，推钮3在第一位置时，固定臂一段321抵接在第一弹性臂121的自由端，使凸点1211陷入凹坑421之后无法分离，从而限制杆4在通道13内沿所述第一方向滑动，推钮3在第二位置时，固定臂一段321移动至第一弹性臂121的固定端，使凸点1211与凹坑421分离，从而解除杆4在通道13内沿所述第一方向滑动的限制。
本发明实施方式提供的第二种锁紧方式为：图27为本发明实施方式提供的一种穿刺支架的结构示意图。如图27所示，在第一种锁定方式的技术上，进一步增加延伸板33，即推钮平台31的两侧端设有延伸板33，延伸板33与推钮平台31的下表面垂直，并且与竖壁123的外壁贴合；延伸板33远离竖壁123的一侧设有按压手位331。推动推钮平台31时，可手握延伸板33，进而方便对推钮平台31进行施力操作。
本发明实施方式提供的第三种锁紧方式为：图28为本发明实施方式提供的一种穿刺支架的结构示意图；图29为图28中开口及插槽422处的结构示意图；图30为图27中第一推钮平台的结构示意图。如图28至图30所示，其中一个横臂上设有开口1241；推钮3包括第一推钮平台34和插板341，插板341位于第一推钮平台34的下表面并且垂直于第一推钮平台34，插板341通过开口1241插入上凸台42的侧壁与同侧的竖壁123的内壁之间的缝隙内，且能在缝隙内沿垂直第一方向滑动，从而实现推钮3与主体1连接，以及推钮3在主体1的第一位置和第二位置间移动；卡接结构包括插接部3411和插槽422，上凸台42与开口1241同侧的侧壁上设有多个插槽422，多个插槽422沿所述第一方向排成一条线，插板341朝向上凸台42的一侧设置插接部3411；推钮3在第一位置时，插接部3411位于插槽422内，并且插板341至少部分位于开口1241内，从而限制杆4在通道13内沿所述第一方向滑动，推钮3在第二位置时，插接部3411位于插槽422外，从而 解除杆4在通道13内沿所述第一方向滑动的限制。第一推钮平台34的移动方向与第一方向垂直，采用此方式，无需使用弹性臂结构，可直接将插接部3411插接在插槽422内。
继续参考图28至图30，如图所示，两个横壁124在所述第一方向的同一位置处均设有开口1241；第一推钮平台34的下表面设有两个间隔设置的插板341，插接部3411设于与插槽422同侧的插板341上；两块插板341之间的直线距离小于两个开口1241底部之间的直线距离。第一推钮平台34的两个插板341中，其中一块设置插接部3411，另一块仅为板状结构，该无插接部3411的插板341起导向作用，在相应的开口1241中往复移动，进而可提高第一推钮平台34的稳定性。另外，在两块插板341的两侧端分别设置凸起的弹性结构，如塑胶条，该弹性结构与开口1241的内壁贴合，起阻尼作用，避免第一推钮平台34随意移动。
本发明实施方式提供的第四种锁紧方式为：图31为本发明实施方式提供的一种穿刺支架的结构示意图；图32为图31中无盖板7状态下推钮处的俯视图。如图31和32所示，至少一个横壁124上具有第一缺口1242；第一缺口1242内设有第四弹性臂1243，第四弹性臂1243的固定端固定在第一缺口1242的入口处的内壁，第四弹性臂1243平行于所述第一方向，从而第四弹性臂1243与第一缺口1242构成第一孔1244；推钮3包括第二推钮平台35和第一固定臂36，第一固定臂36通过连杆4与第二推钮平台35的下表面连接，竖臂123上设有沿所述第一方向设置的第一条形孔，第二推钮平台35位于竖臂123的外侧，连杆4位于第一条形孔内，第一固定臂36位于第一孔1244内，第一固定臂36能在第一孔1244内沿所述第一方向滑动；卡接结构包括第一凸点和第一凹坑423，第四弹性臂1243的自由端设有第一凸点(图中未示出，第一凸点及第四弹性臂1243结构与图12中的第一弹性臂121和凸点1211相同)，第一凸点朝向竖臂123凸起；多个第一凹坑423沿上凸台42的两侧壁表面沿所述第一方向排成一条线；第一固定 臂36的根部具有向第一缺口1242的入口处凸起的第一固定臂一段(图中未示出，第一固定臂一段与图8中固定臂一段321相同)，推钮3在第一位置时，第一固定臂一段抵接在第四弹性臂1243的自由端，使第一凸点陷入第一凹坑423之后无法分离，从而限制杆4在通道13内沿所述第一方向滑动，推钮3在第二位置时，第一固定臂一段移动至第四弹性臂1243的固定端，使第一凸点与第一凹坑423分离，从而解除杆4在通道13内沿所述第一方向滑动的限制。本发明实施方式中，推钮3设置在竖臂123的外侧，穿刺操作时，推钮3可避开位于穿刺针的正下方，进而可降低穿刺针对推钮3操作的影响。
如图31所示，本发明实施方式提供的穿刺架，还包括盖板7，盖板7的下表面与横壁124的上表面固定连接，从而使盖板7封盖在通道13的第一缺口1242上。盖板7封挡第一缺口1242和第四弹性臂1243等结构，避免锁定结构暴露在外，从而可提高锁定的稳定性。
本发明实施方式提供的第五种锁紧方式为：图33为本发明实施方式提供的一种穿刺支架的结构示意图；图34为图33中推钮3的结构示意图；图35为图33中推钮锁定时的局部剖视图。如图33至图35所示，推钮3包括第三推钮平台37和连接块371，连接块371与第三推钮平台37的下表面连接，竖臂123上设有沿垂直所述第一方向设置的第二条形孔，第三推钮平台37位于竖臂123的外侧，连接块371位于第二条形孔内，连接块371能在第二条形孔内沿垂直所述第一方向滑动；卡接结构包括锁块3711和锁槽424，连接块371远离第三推钮平台37的一面设有锁块3711，锁块3711位于横壁124的下表面和杆4的主臂41的上表面之间；杆4的主臂41的上表面位于上凸台42的同一侧设有多个沿所述第一方向设置的锁槽424；推钮3在第一位置时，锁块3711位于锁槽424内，从而限制杆4在通道13内沿所述第一方向滑动，推钮3在第二位置时，锁块3711与锁槽424分离，从而解除杆4在通道13内沿所述第一方向滑动的限制。本发明实施方式中，推钮3在竖臂123的外壁上沿竖臂123的高度方向移动，其中，连接块 371两侧端沿垂直所述第一方向设有弹性锁钩3712，弹性锁钩3712的自由端与第二条形孔的内壁抵接，弹性锁钩3712起阻尼作用，推钮3随意移动。
本发明实施方式中提供了五种锁紧方式，包括不同的施力位置，不同的锁定方向、锁定位置、操作位置等，可满足更多的操作需求，进而可提高产品使用的便利性。
本发明实施方式还提供一种活检装置，包括超声探头200和穿刺支架100；图36为该活检装置的结构示意图；如图36所示，主体1的抱箍11套设在超声探头的外壁上。为了进一步提高穿刺支架100与超声探头200连接的稳定性，如图3所示，抱箍11上设有与超声探头的外壁上的限位凸起相卡接的卡槽113；同时，梁45的下表面与超声探头200的外壁抵接，为了提高两者的贴合度，梁45的下表面设置为与超声探头200的外壁弧度相同的弧形面。
上述具体实施方式，并不构成对本发明保护范围的限制。本领域技术人员应该明白的是，取决于设计要求和其他因素，可以发生各种各样的修改、混合、子混合和替代。任何在本发明的精神和原则之内所作的修改、等同替换和改进等，均应包含在本发明保护范围之内。

Claims (10)

  1. 一种穿刺支架，其特征在于，包括主体(1)、杆(4)、以及针槽板(5)，其中：
    主体(1)能够连接超声探头并且具有通道(13)，通道(13)的长度小于杆(4)的长度；
    杆(4)能够从自身第一端进入通道(13)内，并且能沿第一方向在通道(13)内往复滑动，该第一方向平行于杆(4)的延伸方向；
    针槽板(5)固定在杆(4)的第二端，针槽板(5)上设有至少一个平行所述第一方向的穿针孔(513)；
    主体(1)包括抱箍(11)和两个具有间隔的L形壁(12)；
    抱箍(11)用于连接超声探头；
    L形壁(12)包括竖壁(123)和横壁(124)，其中竖壁(123)自抱箍(11)外表面向远离抱箍(11)的方向延伸，两个横壁(124)分别自两个竖壁(123)的自由边相向延伸，该自由边平行于所述第一方向，从而两个L形壁(12)与抱箍(11)的外壁围成通道(13)；
    抱箍(11)包括具有拱形截面的抱箍主体以及与抱箍主体连接的呈拱形的扳手(2)，L形壁(12)位于抱箍主体上；
    抱箍主体的一个边缘附近与扳手(2)的一端转动连接，抱箍主体的另一个边缘附近设有第一阶梯棱(111)，扳手(2)的另一端设有第二阶梯棱(23)，该第二阶梯棱(23)用于与第一阶梯棱(111)卡接从而使抱箍主体和扳手(2)形成闭合的环；
    杆(4)的主臂(41)的上表面具有上凸台(42)，上凸台(42)向上凸出从而位于两个横壁(124)之间，并沿所述第一方向延伸；多个凹坑(421)沿上凸台(42)的两侧壁表面沿所述第一方向排成一条线；
    两个横壁(124)在所述第一方向的同一位置处具有缺口(122)；
    所述穿刺支架还具有推钮(3)和两个第一弹性臂(121)，其中：
    第一弹性臂(121)的固定端固定在缺口(122)的入口处的内壁，第一弹性臂(121)平行于所述第一方向，从而第一弹性臂(121)与 缺口(122)构成孔(120)，两个第一弹性臂(121)的自由端设有凸点(1211)，两个凸点(1211)朝向对方凸起；
    推钮(3)包括推钮平台(31)和两个固定臂(32)，固定臂(32)位于推钮平台(31)的下表面并且垂直于推钮平台(31)，固定臂(32)插入孔(120)内，且能在孔(120)内沿所述第一方向滑动，固定臂(32)的根部具有向缺口(122)的入口处凸起的固定臂一段(321)，固定臂一段(321)用于抵接第一弹性臂(121)的自由端，使凸点(1211)陷入凹坑(421)之后无法分离，从而限制杆(4)在通道(13)内沿所述第一方向滑动；
    固定臂一段(321)上设有向远离推钮平台(31)方向延伸的固定臂二段(323)，固定臂二段(323)与固定臂一段(321)之间形成平行于所述第一方向U型凹槽(322)，主臂(41)的两侧边缘的一部分位于U型凹槽(322)内；
    推钮平台(31)的上表面设有手位槽(311)和/或标识部；
    杆(4)的下方具有沿所述第一方向延伸的凹槽(47)，凹槽(47)与抱箍(11)的外壁之间形成容置空间；
    抱箍(11)的壁上设有单孔(134)，单孔(134)内设有第二弹性臂(131)，单孔(134)位于通道(13)内的抱箍(11)的壁上，并且靠近通道(13)的远离针槽板(5)的一端；
    第二弹性臂(131)平行于所述第一方向，第二弹性臂(131)的固定端固定在抱箍(11)的壁的端面，第二弹性臂(131)的自由端设有凸起结构(130)，凸起结构(130)包括一个高度大于抱箍(11)的壁厚的第一直端面(133)，从而凸起结构(130)是向通道(13)的内部凸出并且进入所述容置空间；
    杆(4)的第一端具有垂直于所述第一方向的端壁(46)，在杆(4)的滑动过程中端壁内侧(461)能够被第一直端面(133)阻挡从而停止滑动；
    主臂(41)的前端设有两个并行的沿所述第一方向延伸的副臂(411)，两个副臂(411)之间设有限定间隔，两个副臂(411)的内侧各设有一个凸出的挡壁(4111)，两个挡壁(4111)向对方凸出；
    主臂(41)的下表面设有沿其长度方向设置的下凸台(43)，下凸台(43)的表面与抱箍(11)的外壁贴合，下凸台(43)延伸至副臂(411)的下方，两个副臂(411)远离主臂(41)的一端的底部连接至梁(45)，两个副臂(411)之间设有沿杆(4)滑动方向设置的第三弹性臂(44)，第三弹性臂(44)的两端分别与主臂(41)的端部以及梁(45)连接，第三弹性臂(44)的上表面设有凸起结构(440)，该凸起结构包括第二斜面(441)和第二直端面(442)；
    针槽板(5)包括针槽臂(51)和两个插接臂(52)，两个插接臂(52)沿针槽臂(51)的宽度方向设置在针槽臂(51)的底部的边缘，针槽臂(51)底面设有凸起结构(520)，凸起结构(520)位于两个插接臂(52)之间，凸起结构(520)包括第三斜面(521)和第三直端面(522)；
    插接臂(52)插接到两副臂(411)之间，且插接臂(52)的上表面与挡壁(4111)的下表面贴合，第二斜面(441)和第二直端面(442)、以及第三斜面(521)和第三直端面(522)的位置设置使得第二直端面(442)与第三直端(522)面抵接，从而插接臂(52)无法从两副臂(411)之间退出；
    梁(45)的两端分别向所述第一方向的两侧方向突出，从而能与抱箍(11)的靠近杆(4)的第二端的端面抵接形成限位；
    在针槽臂(51)的侧壁上，沿针槽臂(51)的高度方向平行地设置有多个梁，穿针孔(513)为所述多个梁之间的空隙；
    或者
    穿针孔(513)具有完整的内壁；
    针槽臂(51)包括主体部分(53)和配合部分(54)，配合部分(54)的对接面上设有多个平行的凹槽(5131)，多个凹槽(5131)沿针槽臂(51)的高度方向分布，并且沿针槽臂宽度方向贯通针槽臂；
    主体部分(53)的对接面与配合部分(54)的对接面贴合形成具有完整内壁的孔。
  2. 一种穿刺支架，其特征在于，包括主体(1)、杆(4)和推钮 (3)；
    主体(1)具有通道(13)；
    杆(4)能够从自身第一端进入通道(13)内，并且能沿第一方向在通道(13)内往复滑动，该第一方向平行于杆(4)的延伸方向；
    推钮(3)与主体(1)连接，并能在主体(1)的第一位置和第二位置间移动，以及推钮(3)与杆(4)之间设有卡接结构，推钮(3)移动至第一位置时，推钮(3)与杆(4)通过卡接结构锁紧，推钮(3)移动至第二位置时，推钮(3)与杆(4)解除锁紧。
  3. 根据权利要求2所述的穿刺支架，其特征在于，
    主体(1)包括抱箍(11)和两个具有间隔的L形壁(12)，L形壁包括竖壁(123)和横壁(124)，其中竖壁(123)自抱箍(11)外表面向远离抱箍(11)的方向延伸，两个横壁(124)分别自两个竖壁(123)的自由边相向延伸，该自由边平行于所述第一方向，从而两个L形壁(12)与抱箍(11)的外壁围成通道(13)；
    杆(4)的主臂(41)的上表面具有上凸台(42)，上凸台(42)向上凸出从而位于两个横壁(124)之间，并沿所述第一方向延伸。
  4. 根据权利要求3所述的穿刺支架，其特征在于，
    两个横壁(124)在所述第一方向的同一位置处具有缺口(122)；所述穿刺支架还具有两个第一弹性臂(121)，第一弹性臂(121)的固定端固定在缺口(122)的入口处的内壁，第一弹性臂(121)平行于所述第一方向，从而第一弹性臂(121)与缺口(122)构成孔(120)；
    推钮(3)包括推钮平台(31)和两个固定臂(32)，固定臂(32)位于推钮平台(31)的下表面并且垂直于推钮平台(31)，固定臂(32)插入孔(120)内，且能在孔(120)内沿所述第一方向滑动，从而实现推钮(3)与主体(1)连接，以及推钮(3)在主体(1)的第一位置和第二位置间移动；
    卡接结构包括凸点(1211)和凹坑(421)，两个第一弹性臂(121)的自由端设有凸点(1211)，两个凸点(1211)朝向对方凸起；多个 凹坑(421)沿上凸台(42)的两侧壁表面沿所述第一方向排成一条线；
    固定臂(32)的根部具有向缺口(122)的入口处凸起的固定臂一段(321)，推钮(3)在第一位置时，固定臂一段(321)抵接在第一弹性臂(121)的自由端，使凸点(1211)陷入凹坑(421)之后无法分离，从而限制杆(4)在通道(13)内沿所述第一方向滑动，推钮(3)在第二位置时，固定臂一段(321)移动至第一弹性臂(121)的固定端，使凸点(1211)与凹坑(421)分离，从而解除杆(4)在通道(13)内沿所述第一方向滑动的限制。
  5. 根据权利要求4所述的穿刺支架，其特征在于，推钮平台(31)的两侧端设有延伸板(33)，延伸板(33)与推钮平台(31)的下表面垂直，并且与竖壁(123)的外壁贴合；
    延伸板(33)远离竖壁(123)的一侧设有按压手位(331)。
  6. 根据权利要求3所述的穿刺支架，其特征在于，
    其中一个横臂(124)上设有开口(1241)；
    推钮(3)包括第一推钮平台(34)和插板(341)，插板(341)位于第一推钮平台(34)的下表面并且垂直于第一推钮平台(34)，插板(341)通过开口(1241)插入上凸台(42)的侧壁与同侧的竖壁(123)的内壁之间的缝隙内，且能在缝隙内沿垂直第一方向滑动，从而实现推钮(3)与主体(1)连接，以及推钮(3)在主体(1)的第一位置和第二位置间移动；
    卡接结构包括插接部(3411)和插槽(422)，上凸台(42)与开口(1241)同侧的侧壁上设有多个插槽(422)，多个插槽(422)沿所述第一方向排成一条线，插板(341)朝向上凸台(42)的一侧设置插接部(3411)；
    推钮(3)在第一位置时，插接部(3411)位于插槽(422)内，并且插板(341)至少部分位于开口(1241)内，从而限制杆(4)在通道(13)内沿所述第一方向滑动，推钮(3)在第二位置时，插接部(3411)位于插槽(422)外，从而解除杆(4)在通道(13)内沿所 述第一方向滑动的限制；
    两个横壁(124)在所述第一方向的同一位置处均设有开口(1241)；
    第一推钮平台(34)的下表面设有两个间隔设置的插板(341)，插接部(3411)设于与插槽(422)同侧的插板(341)上；
    两块插板(341)之间的直线距离小于两个开口(1241)底部之间的直线距离。
  7. 根据权利要求3所述的穿刺支架，其特征在于，
    至少一个横壁(124)上具有第一缺口(1242)；第一缺口(1242)内设有第四弹性臂(1243)，第四弹性臂(1243)的固定端固定在第一缺口(1242)的入口处的内壁，第四弹性臂(1243)平行于所述第一方向，从而第四弹性臂(1243)与第一缺口(1242)构成第一孔(1244)；
    推钮(3)包括第二推钮平台(35)和第一固定臂(36)，第一固定臂(36)通过连杆与第二推钮平台(35)的下表面连接，竖臂(123)上设有沿所述第一方向设置的第一条形孔，第二推钮平台(35)位于竖臂(123)的外侧，连杆位于第一条形孔内，第一固定臂(36)位于第一孔(1244)内，第一固定臂(36)能在第一孔(1244)内沿所述第一方向滑动；
    卡接结构包括第一凸点(1245)和第一凹坑(423)，第四弹性臂(1243)的自由端设有第一凸点，第一凸点朝向竖臂(123)凸起；多个第一凹坑(423)沿上凸台(42)的两侧壁表面沿所述第一方向排成一条线；
    第一固定臂(36)的根部具有向第一缺口(1242)的入口处凸起的第一固定臂一段，推钮(3)在第一位置时，第一固定臂一段抵接在第四弹性臂(1243)的自由端，使第一凸点陷入第一凹坑(423)之后无法分离，从而限制杆(4)在通道(13)内沿所述第一方向滑动，推钮(3)在第二位置时，第一固定臂一段移动至第四弹性臂(1243)的固定端，使第一凸点与第一凹坑(423)分离，从而解除杆(4)在通道(13)内沿所述第一方向滑动的限制；
    还包括盖板(7)，盖板(7)的下表面与横壁(124)的上表面固 定连接，从而使盖板(7)封盖在通道(13)的第一缺口(1242)上。
  8. 根据权利要求3所述的穿刺支架，其特征在于，
    推钮(3)包括第三推钮平台(37)和连接块(371)，连接块(371)与第三推钮平台(37)的下表面连接，竖臂(123)上设有沿垂直所述第一方向设置的第二条形孔，第三推钮平台(37)位于竖臂(123)的外侧，连接块(371)位于第二条形孔内，连接块(371)能在第二条形孔内沿垂直所述第一方向滑动；
    卡接结构包括锁块(3711)和锁槽(424)，连接块(371)远离第三推钮平台(37)的一面设有锁块(3711)，锁块(3711)位于横壁(124)的下表面和杆(4)的主臂(41)的上表面之间；杆(4)的主臂(41)的上表面位于上凸台(42)的同一侧设有多个沿所述第一方向设置的锁槽(424)；
    推钮(3)在第一位置时，锁块(3711)位于锁槽(424)内，从而限制杆(4)在通道(123)内沿所述第一方向滑动，推钮(3)在第二位置时，锁块(3711)与锁槽(424)分离，从而解除杆(4)在通道(13)内沿所述第一方向滑动的限制；
    连接块(371)两侧端沿垂直所述第一方向设有弹性锁钩(3712)，弹性锁钩(3712)的自由端与第二条形孔的内壁抵接。
  9. 一种活检装置，其特征在于，包括超声探头和如权利要求1至8中任一项所述的穿刺支架；
    所述穿刺支架的抱箍(11)套设在超声探头的外壁上。
  10. 根据权利要求9所述的活检装置，其特征在于，所述超声探头的外壁上设有限位凸起，抱箍(11)上设有与限位凸起卡接的卡槽(113)。
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