CN218220231U

CN218220231U - Deflection-proof telescopic transperineal puncture guide needle device

Info

Publication number: CN218220231U
Application number: CN202221948618.7U
Authority: CN
Inventors: 罗红; 曾俊华
Original assignee: Jingfang Precision Medical Device Shenzhen Co ltd; Shenzhen Luohu Peoplel's Hospital
Current assignee: Jingfang Precision Medical Device Shenzhen Co ltd; Shenzhen Luohu Peoplel's Hospital
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-01-06
Anticipated expiration: 2032-07-25

Abstract

The application relates to an anti-deflection telescopic transperineal puncture needle guide device, which comprises a puncture frame assembly and an anti-deflection assembly, wherein the anti-deflection assembly is provided with an anti-rotation limiting structure which is matched and fixedly installed with the rear end of an ultrasonic probe in a cavity; the puncture support body is equipped with first direction cooperation structure, the subassembly that prevents deflecting is equipped with second direction cooperation structure, first direction cooperation structure with the cooperation of second direction cooperation structure is in order to guide the puncture support body to slide around along intracavity ultrasonic probe's cylinder for the subassembly that prevents deflecting. This through perineum puncture guide pin device is convenient to be installed and is dismantled with intracavity ultrasonic probe location, satisfies the demand that closes to with the private branch to can prevent the rotatory skew of ring probe.

Description

Deflection-proof telescopic transperineal puncture guide needle device

Technical Field

The present application relates to ultrasound interventional medical devices, and more particularly, to a transperineal puncture needle guide apparatus.

Background

With the change of life style of people in recent years, the incidence rate of prostate cancer in China is increased year by year, and the prostate cancer is positioned at the first place of malignant tumors of the urinary system (male). Early detection, timely treatment can save the life of a patient, and the prostate puncture biopsy operation is the final standard and the best diagnosis method for diagnosing prostate cancer. There are generally two implementation approaches of prostate puncture biopsy operation, one is through perineum, the other is through rectum, the puncture through rectum needs early enema, and the rectal mucosa is easy to bleed and infect after operation; the perineal puncture biopsy has the advantages of sterile operation, small infection risk, comprehensive sampling and the like, has higher safety, is more favorable for finding early tumors and lightening adverse reactions after operations, and is gradually used by more medical institutions. In the process of perineum prostate puncture biopsy operation, the ultrasonic probe needs to be provided with a puncture guide pin device for matching use, the front end of the puncture guide pin device is pressed close to the perineum of a patient, and a biopsy needle penetrates through a needle slot hole on the puncture guide pin device to puncture into the prostate gland. Chinese patent application publication No. CN111107802a, published as 5.5.2020, entitled "apparatus guiding apparatus" mentions apparatus for guiding and controlling a needle head when a multi-needle-groove needle holder is placed tightly against perineal skin of a patient for performing prostate puncture, but the technique has the following limitations: the position that intracavity ultrasonic probe is close to the sound head in above-mentioned patent application has limit characteristic, can the direct mount puncture frame paste perineum, and actually there are the position that a lot of intracavity ultrasonic probe are close to the sound head to be glossy cylinder structure, and puncture guide pin device mounted position does not have limit characteristic, and the straightness that hangs down of installation can't be guaranteed to the puncture guide pin device, and can encircle probe rotary offset after fixed with ultrasonic probe, can't guarantee the puncture accuracy.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will solve lies in, to prior art's above-mentioned defect, provides one kind and conveniently with intracavity ultrasonic probe location installation and dismantlement, satisfy and press close to and can fix through perineum puncture guide pin device circumferentially with the meeting of meeting private parts.

The technical scheme adopted by the application for solving the technical problem is as follows: the transperineal puncture needle guide device comprises a puncture frame assembly and an anti-deflection assembly, wherein the anti-deflection assembly is provided with an anti-rotation limiting structure which is matched and fixedly installed with the rear end of an ultrasonic probe in a cavity, the puncture frame assembly comprises a puncture frame body and a probe fixing member which is arranged at the lower end of the puncture frame body and used for tightly holding a cylinder at the front end of the ultrasonic probe in the cavity, and a plurality of parallel puncture needle guide grooves are formed in the puncture frame body; the puncture support body is equipped with first direction cooperation structure, the subassembly that prevents deflecting is equipped with second direction cooperation structure, first direction cooperation structure with the cooperation of second direction cooperation structure is in order to guide the puncture support body to slide around along intracavity ultrasonic probe's cylinder for the subassembly that prevents deflecting.

In one embodiment of the transperineal puncture needle guide apparatus according to the present application, the first guiding engagement structure comprises a first sliding guide pillar and a second sliding guide pillar respectively disposed on two sides of the puncture frame body and extending backward in parallel to each other, and the second guiding engagement structure comprises a first sliding guide sleeve and a second sliding guide sleeve respectively disposed on two sides of the anti-deflection assembly and extending forward in parallel to each other for inserting the first sliding guide pillar and the second sliding guide pillar.

In an embodiment of the transperineal puncture needle guide apparatus according to the present application, the second guiding engagement structure further includes a connecting seat connecting and supporting the front ends of the first sliding guide sleeve and the second sliding guide sleeve, and the connecting seat has a supporting surface attached to the upper surface of the intracavity ultrasound probe.

According to an embodiment of the transperineal puncture needle guiding device of the present application, the first guiding engagement structure further includes a limiting guide pillar disposed on the puncture frame body and extending backward in parallel with the first sliding guide pillar and the second sliding guide pillar, and the connecting seat is provided with a mounting hole for the limiting guide pillar to penetrate through.

According to the application in one embodiment of the transperineal puncture needle guide device, the rear end of the limiting guide post passing through the mounting hole is also provided with an anti-falling limiting structure for preventing the limiting guide post from falling off from the mounting hole.

In an embodiment of the transperineal puncture needle guide device according to the present application, the anti-falling limiting structure is a limiting pin inserted at the rear end of the limiting guide post.

According to this application in an embodiment of transperineal puncture guide pin device, the lower extreme of puncture support body has the last parcel face of parcel intracavity ultrasonic probe's cylinder upper surface, the probe mounting has the lower parcel face of parcel intracavity ultrasonic probe's cylinder lower surface, the probe mounting with the puncture support body combines to pass through go up the parcel face with the cylinder of intracavity ultrasonic probe is held tightly to the parcel face down.

In one embodiment of the transperineal puncture needle guide apparatus according to the application, the probe fixing member is rotatably connected with the puncture frame body on one side and detachably locked on the other opposite side.

According to this application in one embodiment of transperineal puncture needle guide device, the relative opposite side of puncture support body is rotated and is connected a screw rod, threaded connection lock nut on the screw rod, the draw-in groove is seted up to the relative opposite side of probe mounting, the screw rod card is gone into in the draw-in groove and is screwed lock nut will puncture support body and probe mounting lock.

According to an embodiment of the transperineal puncture needle guide device, the deflection preventing limiting structure comprises a first limiting plane and a second limiting plane which extend downwards from two sides of the deflection preventing component relatively to each other and are used for fitting a matching plane on two sides of the rear end of the ultrasonic probe in the cavity, and the deflection preventing limiting component is also arranged between the upper ends of the first limiting plane and the second limiting plane to form an auxiliary supporting surface fitted with the upper surface of the ultrasonic probe in the cavity.

Implement the transperineal puncture guide pin device of this application, have following beneficial effect: according to this application embodiment through perineum puncture guide pin device by puncture frame subassembly with prevent deflection subassembly two parts and constitute, prevent deflection subassembly and intracavity ultrasonic probe rear end cooperation fixed mounting, puncture frame subassembly holds close intracavity ultrasonic probe front end cylinder and accessible direction cooperation structure and slides around for preventing deflection subassembly along intracavity ultrasonic probe's cylinder with the relative distance of adjustment and sound head, the device can satisfy the guide pin demand in through perineum prostate puncture biopsy operation from this, can not encircle the probe rotation yet, the relative distance of needle frid and probe can be adjusted to telescopic shaft-like structure simultaneously, make the pjncture needle guiding groove press close to patient's perineum, thereby improve the accuracy through perineum prostate puncture location.

Drawings

The present application will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic structural view of one state of a transperineal puncture needle guide apparatus according to one embodiment of the present application;

FIG. 2 is a schematic structural view of another state of the transperineal puncture needle guide apparatus shown in FIG. 1;

FIG. 3 is a schematic exploded view of the transperineal puncture needle guide apparatus shown in FIG. 1;

FIG. 4 is a schematic view of the transperineal puncture needle guide apparatus and the installation structure of the intracavity ultrasound probe shown in FIG. 1;

figure 5 is a plan view of the puncture rack assembly of the transperineal puncture needle apparatus shown in figure 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. Also, the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 1 and fig. 2 respectively show two states of the transperineal puncture needle guide apparatus 100 according to an embodiment of the present application, fig. 3 shows an exploded structural diagram of the transperineal puncture needle guide apparatus 100, and fig. 4 shows a structural diagram of the transperineal puncture needle guide apparatus 100 and the intracavity ultrasound probe 40. Referring to fig. 1 to 4, the transperineal puncture needle guide apparatus 100 is mainly composed of a puncture needle assembly 10 and an anti-deflection assembly 20. The anti-deflection assembly 20 is provided with an anti-rotation limiting structure which is matched and fixedly installed with the rear end 41 of the intracavity ultrasonic probe 40. The puncture rack assembly 10 comprises a puncture rack body 11 and a probe fixing piece 12, wherein the probe fixing piece 12 is arranged at the lower end of the puncture rack body 11 and is used for tightly holding a cylinder 42 at the front end of an intracavity ultrasonic probe 40. The puncture frame body 11 is provided with a plurality of parallel equidistant puncture needle guide grooves 111 for guiding the biopsy needle 30. The puncture needle guide groove 111 is preferably a C-shaped groove 1111 opened to one side to allow the biopsy needle 30 to move only in the axial direction, and a guide slope 1112 is formed at the needle feeding end of the puncture needle guide groove 111 to facilitate needle feeding (see fig. 5). Puncture support body 11 is equipped with first direction cooperation structure, and anti-deflection subassembly 20 is equipped with the second direction cooperation structure, and the two cooperates and can guide puncture support body 11 to slide along intracavity ultrasound probe's 40 cylinder 42 back and forth for anti-deflection subassembly 20 to the relative distance of adjustment puncture support body 11 and sound head 43 makes puncture needle guide groove 111 press close to patient's perineum.

As shown in fig. 3 in particular, the lancing rack assembly 10 is mainly formed by combining a lancing rack body 11 and a probe fixture 12. The lower end of the puncture frame body 11 has an upper wrapping surface 112 for wrapping the upper surface of the cylinder 42 of the intracavity ultrasound probe 40 when mounted. The probe holder 12 has a lower envelope surface 121 for enveloping the lower surface of the cylinder 42 of the intracavity ultrasound probe 40 when mounted. The probe fixing member 12 is combined with the puncture frame body 11 to tightly hold the cylinder 42 of the intracavity ultrasonic probe 40 through the upper wrapping surface 112 and the lower wrapping surface 121. Referring further to fig. 3, the probe holder 12 is rotatably connected to the piercing frame 11 at one side by a rotary latch 13 and at the opposite side is detachably lockable by a locking structure 15. Specifically, as shown in fig. 3 and fig. 5, the opposite side of the rack 11 is rotatably connected to a screw 151 through a rotating latch 14, the screw 151 is threadedly connected to a lock nut 152, the opposite side of the probe fixing member 12 is provided with a slot (not visible in the figure), and the rack 11 and the probe fixing member 12 can be locked by screwing the lock nut 152 after the screw 151 is locked in the slot. The locking nut 152 is loosened to withdraw the screw 151 from the slot, and the probe holder 12 is rotated relative to the puncture housing 11 to be opened.

As shown in fig. 3 and 5, the piercing frame body 11 is provided at both sides thereof with a first slide guide 15 and a second slide guide 16 extending rearward in parallel to each other. The front ends of the first sliding guide post 15 and the second sliding guide post 16 can be inserted into and fixed in the first mounting hole 113 and the second mounting hole 114 correspondingly formed on the two sides of the puncture frame body 11, or can be fixedly connected in other manners. The puncture frame body 11 is further provided with a limiting guide post 17 which is parallel to the first sliding guide post 15 and the second sliding guide post 16 and extends backwards, and the front end of the limiting guide post 17 is inserted and fixed in a third mounting hole 115 which is arranged at the middle position between the first mounting hole 113 and the second mounting hole 114 on the puncture frame body 11. The anti-deflection assembly 20 includes an anti-rotation bracket 21 and a coupling seat 22. The rotation preventing frame 22 is provided at both sides thereof with a first slide guide 23 and a second slide guide 24 extending forward in parallel to each other corresponding to the first slide guide 15 and the second slide guide 16, respectively, for the rear ends of the first slide guide 15 and the second slide guide 16 to be inserted and relatively slid. Similarly, the rear ends of the first sliding guide sleeve 23 and the second sliding guide sleeve 24 can be inserted and fixed into the fourth mounting hole 213 and the fifth mounting hole 214 correspondingly formed on both sides of the rotation preventing frame 21. The connecting base 22 is used for connecting and supporting the front ends of the first sliding guide sleeve 23 and the second sliding guide sleeve 24. The lower end of the connecting base 22 has a supporting surface 224 attached to the upper surface of the intracavity ultrasound probe 40. A sixth mounting hole 221 and a seventh mounting hole 222 are correspondingly formed on two sides of the connecting seat 22, so that the front ends of the first sliding guide sleeve 23 and the second sliding guide sleeve 24 are inserted and mounted to be in butt joint with the first sliding guide post 15 and the second sliding guide post 16. An eighth mounting hole 223 is formed in the middle position between the sixth mounting hole 221 and the seventh mounting hole 222 of the connecting seat 22, and is used for the limit guide pillar 17 to penetrate through. Therefore, the puncture frame body 11 can be matched with the second guiding and matching structure formed by the first sliding guide sleeve 23, the second sliding guide sleeve 24 and the connecting seat 22 of the deflection preventing assembly 20 through the first guiding and matching structure formed by the first sliding guide post 15, the second sliding guide post 16 and the limiting guide post 17, so as to realize the forward and backward sliding of the deflection preventing assembly 20 along the cylinder 42 of the intracavity ultrasonic probe 40. When the piercing carriage body 11 is slid backward relative to the anti-deflection assembly 20 until the first slide guide post 15 and the second slide guide post 16 are fully inserted into the first slide guide 23 and the second slide guide 24 (see fig. 1), the piercing carriage body 11 is at the farthest position from the sonotrode 43. When the piercing frame body 11 slides forward relative to the anti-deflection assembly 20 until the first slide guide post 15 and the second slide guide post 16 are pulled out of the first slide guide sleeve 23 and the second slide guide sleeve 24 (see fig. 2), the piercing frame body 11 gradually approaches the sonic head 43. As further shown in fig. 3, the rear end of the position-limiting guide post 17 is provided with a ninth mounting hole 171, and a position-limiting pin 172 is inserted into the mounting hole 171 after the rear end of the position-limiting guide post 17 passes through the eighth mounting hole 223 of the connecting seat 22 to serve as an anti-slip position-limiting structure, so as to prevent the position-limiting guide post 17 from slipping forward from the eighth mounting hole 223, so as to also limit the forward sliding distance of the puncture frame body 11 relative to the anti-deflection assembly 20, and prevent the first sliding guide post 15 and the second sliding guide post 16 from slipping out of the first sliding guide sleeve 23 and the second sliding guide sleeve 24.

As further shown in fig. 3 and 4, two sides of the anti-rotation frame 21 extend downward to form a first limit plane 211 and a second limit plane 212 opposite to each other. This first spacing plane 211 and second spacing plane 212 are used as preventing changeing limit structure, laminate mutually with the cooperation plane of intracavity ultrasound probe 40 rear end both sides to the rotation of whole through perineum puncture guide pin device 100 of restriction prevents this through perineum puncture guide pin device 100 and installs back ring probe rotational deviation on intracavity ultrasound probe 40. Further, the rotation prevention frame 21 further forms an auxiliary supporting surface 215 between the upper ends of the first and second

limiting planes

211 and 212 for being attached to the upper surface of the intracavity ultrasound probe to provide a supporting function. According to various embodiments of the present application, the anti-deflection assembly 20 may further include an anti-rotation limiting structure in other structural forms to be fixedly installed in cooperation with the rear end 41 of the intracavity ultrasound probe 40, and is not limited to the illustrated embodiment.

The procedure of installing and using the transperineal puncture needle guide device 100 and the intracavity ultrasonic probe 40 according to the above embodiment of the present application is as follows: firstly, the probe fixing member 12 is rotated to be opened, then the first limit plane 211 and the second limit plane 212 of the rotation prevention frame 21 are aligned with the corresponding matching planes on the two sides of the rear end 41 of the intracavity ultrasound probe 40 and are clamped to the bottom, the rotation of the perineal puncture needle guide device 100 is limited, at this time, the upper surface of the intracavity ultrasound probe 40 is attached to the auxiliary supporting surface 215 of the rotation prevention frame 21, the supporting surface 224 of the connecting seat 22 and the upper wrapping surface 112 of the puncture frame body 11, and then the position of the puncture frame body 11 relative to the deflection preventing assembly 20 is stretched and slid, that is, the length of the whole perineal puncture needle guide device 100 is adjusted, after the puncture needle guide groove 111 on the puncture frame body 11 reaches the required position, the probe fixing member 12 is rotated to enable the lower wrapping surface 121 of the probe fixing member to be attached to the cylindrical lower surface of the intracavity ultrasound probe 40, the screw rod 151 is clamped into the clamping groove of the probe fixing member 12, and then the locking nut 152 is screwed, so as to fix the intracavity ultrasound probe 40.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transperineal puncture needle guide device is characterized by comprising a puncture frame assembly and an anti-deflection assembly, wherein the anti-deflection assembly is provided with an anti-rotation limiting structure which is matched and fixedly installed with the rear end of an ultrasonic probe in a cavity; the puncture support body is equipped with first direction cooperation structure, the subassembly that prevents deflecting is equipped with second direction cooperation structure, first direction cooperation structure with the cooperation of second direction cooperation structure is in order to guide the puncture support body to slide around along intracavity ultrasonic probe's cylinder for the subassembly that prevents deflecting.

2. The transperineal puncture needle guide apparatus according to claim 1, wherein the first guide engagement structure includes a first slide guide post and a second slide guide post respectively disposed on both sides of the puncture frame body to extend backward in parallel to each other, and the second guide engagement structure includes a first slide guide sleeve and a second slide guide sleeve respectively disposed on both sides of the deflection preventing assembly to extend forward in parallel to each other for insertion of the first slide guide post and the second slide guide post.

3. The transperineal puncture needle guide apparatus according to claim 2, wherein the second guiding engagement structure further includes a connecting seat for connecting and supporting the front ends of the first sliding guide sleeve and the second sliding guide sleeve, and the connecting seat has a supporting surface attached to the upper surface of the ultrasonic probe in the cavity.

4. The transperineal puncture needle guide device according to claim 3, wherein the first guiding engagement structure further includes a limiting guide post disposed on the puncture frame body and extending backward in parallel with the first sliding guide post and the second sliding guide post, and the connecting seat is provided with a mounting hole for the limiting guide post to penetrate through.

5. The transperineal puncture needle guide device of claim 4, wherein the rear end of the position-limiting guide post passing through the mounting hole is further provided with an anti-falling position-limiting structure for preventing the position-limiting guide post from falling out of the mounting hole.

6. The transperineal puncture needle guide device according to claim 5, wherein the anti-falling limit structure is a limit pin inserted at the rear end of the limit guide post.

7. The transperineal puncture needle guide device according to claim 1, wherein the lower end of the puncture frame body is provided with an upper wrapping surface wrapping the upper surface of the cylinder of the ultrasonic probe in the cavity, the probe fixing member is provided with a lower wrapping surface wrapping the lower surface of the cylinder of the ultrasonic probe in the cavity, and the probe fixing member and the puncture frame body are combined to tightly hold the cylinder of the ultrasonic probe in the cavity through the upper wrapping surface and the lower wrapping surface.

8. The transperineal puncture needle guide device of claim 7 wherein the probe fixing member is rotatably connected to the puncture frame body at one side and detachably locked at the opposite side.

9. The transperineal puncture needle guide device according to claim 8, wherein a screw is rotatably connected to the opposite side of the puncture frame body, a lock nut is connected to the screw in a threaded manner, a clamping groove is formed in the opposite side of the probe fixing member, the screw is clamped into the clamping groove, and the puncture frame body and the probe fixing member are locked by screwing the lock nut.

10. The transperineal puncture needle guide apparatus according to claim 1, wherein the deflection prevention limiting structure includes a first limiting plane and a second limiting plane extending downward from both sides of the deflection prevention assembly opposite to each other for fitting the fitting planes of both sides of the rear end of the intracavity ultrasound probe, and the deflection prevention limiting assembly further forms an auxiliary supporting surface between the upper ends of the first limiting plane and the second limiting plane for fitting the upper surface of the intracavity ultrasound probe.