A puncture guide

Abstract

The present invention provides a puncture guiding device, which includes a guiding device body and a mounting bracket. The guiding device body is detachably mounted on the mounting bracket. The mounting bracket includes a main frame plate, a baffle, a plurality of sliding plates, and a sliding plate locking device. The front side of the main frame plate is connected to the baffle. The sliding plates are slidably arranged on the main frame plate through sliding holes. A sliding groove is arranged on the main frame plate and penetrates through the rear side of the main frame plate. The sliding plate locking device is arranged behind the main frame plate and includes a central block and a pressing strip. The central block can be slidably arranged in the sliding groove. The pressing strip is arranged at a position near the front of the outer side of the central block and is used to press the sliding plates. In the present invention, the guiding device body is mounted on the mounting bracket. When the mounting bracket is placed on the patient's body, the movably arranged sliding plates can fit the surface of the human body to form a support for the guiding device body, and then the sliding plates are fixed by the sliding plate locking device. In this way, the guiding device body can be firmly fixed during the puncture operation, facilitating the puncture operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device equipment, and particularly relates to a puncture guide device. Background Art

[0002] With the continuous development of gene detection and minimally invasive treatment of tumors, the application of CT-guided percutaneous tumor puncture is increasing. However, the freehand puncture technology of this technique is difficult, has high technical requirements for doctors, and has a long learning cycle. Therefore, most doctors use various positioning and guiding devices to assist puncture.

[0003] Chinese Patent CN207970126U once disclosed a handheld pressing puncture guide device, including a handheld scale, puncture needle holders with different apertures, a rotating disc, a pressing handle, a universal level, etc. The rotating disc can rotate around the scale, and the puncture needle holder can be opened and closed by the pressing handle. This patent can accurately guide the puncture direction of the puncture needle, accurately insert the puncture needle, shorten the operation time, reduce the operation risk, and reduce the operation difficulty.

[0004] However, in the solution of the above patent, when the puncture guide device is in use, it needs to be installed very close to the human body, and even needs to use the patient's body as a support; in actual puncture operations, in order to cooperate with the puncture position determined before the operation, the patient will be in various postures, such as lying on the side, lying on the back, lying on the stomach, etc. Due to the uneven surface of the patient's body, it is difficult to find a suitable bracket to fix the puncture guide device, and there may be a slight displacement during the puncture process, resulting in an unsatisfactory puncture result finally. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a puncture guide device, including:

[0006] A guide device body;

[0007] An installation bracket, the guide device body is detachably installed on the installation bracket; the installation bracket includes a main frame plate, a baffle, a plurality of sliding plates, and a sliding plate locking device; the main frame plate is vertically arranged and the front side on the main frame plate is connected to the baffle; a sliding hole extending along the length direction thereof is opened on the sliding plate, and the sliding plate is slidably arranged on the main frame plate through the sliding hole; a sliding groove extending along the front-back direction is arranged on the main frame plate, and the sliding groove penetrates the rear side of the main frame plate; the sliding plate locking device is arranged behind the main frame plate and includes a central block and a pressing strip; the central block can be slidably arranged in the sliding groove; the pressing strip is arranged at a position near the front of the outer side of the central block and is used for pressing the sliding plate.

[0008] As an optimization, the slide locking device also includes a limiting structure, which includes a limiting block and a limiting strip; the two limiting blocks are respectively arranged on the left and right sides of the main frame plate and are connected to the baffle, and the limiting blocks are provided with limiting grooves extending in the front and rear directions, and the limiting grooves pass through the side of the limiting blocks close to the main frame plate; the two limiting strips are respectively arranged on the left and right sides of the center block, and the end of the limiting strip facing away from the center block is inserted into the limiting groove.

[0009] As an optimization, the slide locking device also includes a clamping bolt and a bolt fixing block, and a clamping screw hole for the clamping bolt to pass through is arranged in the middle of the bolt fixing block; the left and right sides of the bolt fixing block are symmetrically provided with fixing rods extending left and right, and the end of the fixing rod is provided with a clamping column extending up and down, and the rear end of the limit groove is provided with a clamping groove matching the clamping column.

[0010] As an optimization, one of the limit blocks is provided with a T-shaped slide bar extending in the front-to-back direction on the side away from the central block, and the other limit block is provided with a connecting block on the side away from the central block, wherein a first T-shaped groove is provided in the connecting block;

[0011] The mounting brackets are configured in plurality, and among two adjacent mounting brackets, one mounting bracket is connected to the first T-slot of the other mounting bracket through its T-sliding bar.

[0012] As an optimization, a mounting block is connected to the body of the indicator, and a second T-shaped slot corresponding to the T-shaped slide bar is provided on the mounting block;

[0013] The indicator body includes a scale box and a rotating disk, the scale box is provided with a circular opening, the back of the rotating disk protrudes outward, and the protruding part of the rotating disk is rotatably inserted into the circular opening of the scale box; wherein a puncture needle holder is provided on the front of the rotating disk, and rotating scales are distributed around the circular opening on the scale box.

[0014] As an optimization, the puncture needle holder is cylindrical as a whole and includes a first clamping portion and a second clamping portion that are arranged opposite to each other;

[0015] The rotating disk is provided with a slideway extending radially along the puncture needle holder, and a blocking block is provided in the slideway; the second clamping portion is provided with an N-shaped connecting piece, and the N-shaped connecting piece is sleeved on the outside of the blocking block, and the N-shaped connecting piece is provided with a return spring on the side away from the outlet end, and the end of the return spring away from the N-shaped connecting piece is connected to the blocking block;

[0016] The rotating disk is also provided with two fixing grooves located on opposite sides of the slideway; the first clamping portion is provided with two fixing columns corresponding to the fixing grooves;

[0017] The distance from the side wall of the rotating disk to which the opening end of the N-shaped connector faces to the blocking block is smaller than the distance from the side wall of the rotating disk to which the opening end of the N-shaped connector faces to the fixing groove.

[0018] As an optimization, the N-shaped connector is connected to a second handle on the outside of the side facing away from the exit end, the second handle is slidably arranged in a slideway, and the end of the second handle facing away from the N-shaped connector passes through the side wall of the rotating disk; a first handle is connected to the outside of the side wall of the rotating disk opposite to the opening end of the N-shaped connector.

[0019] As an optimization, the rotating disk includes a shell and a cover, the shell is cylindrical with one end open, and the cover is arranged on the open end of the shell;

[0020] The cover body includes a first half cover and a second half cover that are arranged opposite to each other; the first half cover is provided with two fixing holes, the positions of the fixing holes correspond to the fixing grooves, and the fixing columns of the first clamping part can pass through the fixing holes and be inserted into the fixing grooves; the second half cover is provided with two strip holes, and the second clamping part is connected to the N-shaped connecting piece by two connecting columns passing through the strip holes.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] 1. Install the guide body on the mounting bracket, which includes a main frame plate and a slide movably arranged on the main frame plate; when the mounting bracket is placed on the patient's body, the slide movably arranged can fit the surface of the human body to form a support for the guide body. After the slide fits the human body, the slide is fixed by the slide locking device, so that the guide body can be firmly fixed during the puncture operation, which is convenient for the puncture operation;

[0023] 2. By providing a first T-slot and a T-slide on the mounting bracket, multiple mounting brackets can be connected together, which is suitable for more complex scenarios;

[0024] 3. By pressing the second handle, the first clamping part and the second clamping part can be moved away from each other, and then the puncture needle is placed between the first clamping part and the second clamping part. Then, the second handle is released, and the restoring force of the reset spring drives the first clamping part to approach the second clamping part, so that the puncture needle is clamped by the first clamping part and the second clamping part. In this way, the clamping and loosening of the puncture needle are easily completed, which is convenient for the doctor's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0026] Figure 1Schematic diagram of the overall structure of the puncture guide of the present invention;

[0027] Figure 2 Exploded structure diagram of the mounting bracket of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the sliding piece of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the guide body of the present invention;

[0030] Figure 5 Exploded structure diagram of the rotating disk of the present invention;

[0031] Figure 6 Inner structure diagram of the N-shaped connecting piece of the present invention.

[0032] Reference numerals:

[0033] 1 - Guide body, 10 - Mounting block;

[0034] 11 - Scale box, 111 - Universal level, 112 - Center marking line;

[0035] 12 - Rotating disk, 121 - Housing, 122 - Cover, 1221 - First half cover, 1222 - Second half cover, 1223 - Fixing hole, 1224 - Strip hole, 123 - Slideway, 124 - Fixing groove;

[0036] 13 - Puncture needle holder, 131 - First clamping part, 132 - Second clamping part;

[0037] 14 - Blocking block, 15 - N-shaped connecting piece, 151 - Spring installation groove, 16 - Fixed column, 17 - Connecting column, 18 - First handle, 19 - Second handle;

[0038] 2 - Mounting bracket, 21 - Main frame plate, 211 - Chute, 22 - Baffle, 23 - Slide piece;

[0039] 24 - Slide piece locking device, 241 - Center block, 242 - Pressure bar, 243 - Limiting structure, 2431 - Limiting block, 2432 - Limiting strip, 2433 - Limiting groove, 2434 - Card slot; 244 - Bolt fixing block, 2441 - Pressing hole, 2442 - Fixed rod, 2443 - Card column, 245 - Pressing bolt, 25 - T-shaped slide bar, 26 - Connecting block, 261 - First T-shaped groove. Detailed implementation manners

[0040] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0041] Example: Figures 1 to 6 As shown, the present invention discloses a puncture guide, comprising a guide body 1 and a mounting bracket 2.

[0042] The indicator body 1 is detachably mounted on the mounting bracket 2. The mounting bracket 2 includes a main frame plate 21, a baffle plate 22, a plurality of slides 23, and a slide locking device 24. The main frame plate 21 is vertically arranged and the front side of the main frame plate 21 is connected to the baffle plate 22. The slide 23 is provided with a slide hole extending along its length direction, and the slide 23 is slidably arranged on the main frame plate 21 through the slide hole. The main frame plate 21 is provided with a slide groove 211 extending in the front-to-back direction, and the slide groove 211 passes through the rear side of the main frame plate 21. The slide locking device 24 is arranged at the rear of the main frame plate 21, and includes a center block 241 and a pressure strip 242; the center block 241 can be slidably arranged in the slide groove 211; the pressure strip 242 is arranged on the outer side of the center block 241 near the front, and is used to press the slide 23.

[0043] During implementation, both ends of the slide 23 can be set to be arc-shaped, which can more easily fit the curvature of the human body and form a stable support.

[0044] Specifically, the slide locking device 24 further includes a limiting structure 243, and the limiting structure 243 includes a limiting block 2431 and a limiting strip 2432. The two limiting blocks 2431 are respectively arranged on the left and right sides of the main frame plate 21 and connected to the baffle plate 22. The limiting blocks 2431 are provided with a limiting groove 2433 extending in the front-to-back direction, and the limiting groove 2433 penetrates the side of the limiting block 2431 close to the main frame plate 21; the two limiting strips 2432 are respectively arranged on the left and right sides of the center block 241, and the end of the limiting strip 2432 away from the center block 241 is inserted into the limiting groove 2433.

[0045] Specifically, the sliding vane locking device 24 further includes a pressing bolt 245 and a bolt fixing block 244. A pressing hole 2441 for the pressing bolt 245 to pass through is provided in the middle of the bolt fixing block 244. Fixed rods 2442 extending left and right are symmetrically arranged on the left and right sides of the bolt fixing block 244. A clamping post 2443 extending up and down is provided at the end of the fixed rod 2442. A clamping slot 2434 matching the clamping post 2443 is provided at the rear end of the limiting slot 2433. During implementation, the pressing bolt 245 is inserted into the pressing hole 2441 to make the pressing bolt 245 press against the center block 241. In this way, when the bolt is tightened, the center block 241 is pushed to move in front of the sliding slot 211, and then several sliding vanes 23 are pressed tightly, so that the sliding vanes 23 enter the locked state. When the bolt is loosened, several sliding vanes 23 also enter the untied state, enabling the sliding vanes 23 to move up and down along the main frame plate 21.

[0046] Specifically, a T-shaped slide bar 25 extending in the front-rear direction is provided on one side of one of the limiting blocks 2431 facing away from the center block 241. A connecting block 26 is provided on one side of the other limiting block 2431 facing away from the center block 241. A first T-shaped slot 261 is provided inside the connecting block 26. During implementation, a plurality of fixing screw holes can be evenly provided on the upper side of the first T-shaped slot 261. By setting bolts in the fixing screw holes, the two mounting brackets 2 can be fixed at any position, which can improve the adaptability of the mounting brackets.

[0047] A plurality of the mounting brackets 2 are configured. In two adjacent mounting brackets 2, one mounting bracket 2 is connected in cooperation with the first T-shaped slot 261 of the other mounting bracket 2 through its T-shaped slide bar 25.

[0048] Specifically, a mounting block 10 is connected to the guiding device body 1. A second T-shaped slot corresponding to the T-shaped slide bar 25 is provided in the mounting block 10. During implementation, fixing screw holes can be provided on the second T-shaped slot 10. By setting bolts in the fixing screw holes, the guiding device body 1 can be fixed at any position on the T-shaped slide bar 25 of the mounting bracket 2.

[0049] The guiding device body 1 includes a scale box 11 and a rotating disk 12. The scale box 11 is provided with a circular opening. The back surface of the rotating disk 12 protrudes outward, and the protruding part of the rotating disk 12 is rotatably inserted into the circular opening of the scale box 11. Among them, a puncture needle holder 13 is provided on the front surface of the rotating disk 12, and rotating scales are distributed around the circular opening on the scale box 11.

[0050] In the present application, the rotary scale is used to determine the puncture angle during a puncture operation. For convenience of fixation, through holes leading to the rotary disk 12 may be provided on the side of the scale box 11. By setting bolts in the through holes, the rotary disk 12 can be fixed at a suitable position on the scale box 11, so that the puncture needle is at a pre-set puncture angle.

[0051] During implementation, a universal level 111 and a center marking line 112 are provided on the scale box 11. In this way, the zero point of the scale of the pointer body 1 can be found by two methods: leveling the universal level 111 or aligning with an external laser line.

[0052] Specifically, the puncture needle holder 13 is integrally cylindrical and includes a first clamping portion 131 and a second clamping portion 132 arranged opposite to each other.

[0053] A slideway 123 extending radially along the puncture needle holder 13 is provided inside the rotary disk 12, and a blocking block 14 is arranged in the slideway 123; an n-shaped connecting member 15 is provided on the second clamping portion 132, and the n-shaped connecting member 15 is sleeved outside the blocking block 14. A return spring (not shown) is arranged inside the n-shaped connecting member 15 on the side away from its open end, and one end of the return spring away from the n-shaped connecting member 15 is connected to the blocking block 14. Among them, a spring installation groove 151 is opened inside the n-shaped connecting member 15 on the side away from its open end, and the end of the return spring is installed in the spring installation groove 151.

[0054] Two fixing grooves 124 are further provided inside the rotary disk 12 on opposite sides of the slideway 123; two fixing columns 16 corresponding to the fixing grooves 124 are provided on the first clamping portion 131.

[0055] Among them, the distance from the side wall of the rotary disk 12 facing the open end of the n-shaped connecting member 15 to the blocking block 14 is less than the distance from the side wall of the rotary disk 12 facing the open end of the n-shaped connecting member 15 to the fixing groove 124.

[0056] Specifically, a second handle 19 is connected to the outside of the n-shaped connecting member 15 on the side away from its open end. The second handle 19 is slidably arranged in the slideway 123, and one end of the second handle 19 away from the n-shaped connecting member 15 penetrates through the side wall of the rotary disk 12; a first handle 18 is connected to the outside of the side wall of the rotary disk 12 facing the open end of the n-shaped connecting member 15.

[0057] Specifically, the rotary disk 12 includes a housing 121 and a cover 122. The housing 121 is in the shape of a cylinder with one end open, and the cover 122 covers the open end of the housing 121.

[0058] The cover body 122 includes a first half-cover 1221 and a second half-cover 1222 which are oppositely arranged; two fixing holes 1223 are formed in the first half-cover 1221, and the positions of the fixing holes 1223 correspond to the fixing grooves 124. The fixing posts 16 of the first clamping portion 131 can pass through the fixing holes 1223 and be inserted into the fixing grooves 124; two strip-shaped holes 1224 are formed in the second half-cover 1222, and the second clamping portion 132 is connected to the n-shaped connecting member 15 through two connecting posts 17 passing through the strip-shaped holes 1224.

[0059] In this application, by pressing the second handle, the second clamping portion slides. At this time, the return spring is in a compressed state, and the first clamping portion and the second clamping portion move away from each other. Then, the puncture needle is placed between the first clamping portion and the second clamping portion. Next, the second handle is released, and the restoring force of the return spring drives the first clamping portion to approach the second clamping portion, so that the puncture needle is clamped by the first clamping portion and the second clamping portion.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the following embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the following embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A puncture guiding device, characterized in that, include: The indicator body; The mounting bracket is configured such that the guide body can be detachably mounted on the mounting bracket; the mounting bracket comprises a main frame plate, a baffle plate, a plurality of slides, and a slide locking device; the main frame plate is vertically arranged and the front side of the main frame plate is connected to the baffle plate; a slide hole extending along its length direction is provided on the slide, and the slide is slidably arranged on the main frame plate through the slide hole; a slide groove extending along the front-to-back direction is provided on the main frame plate, and the slide groove passes through the rear side of the main frame plate; the slide locking device is arranged at the rear of the main frame plate, and comprises a center block and a pressure strip; the center block can be slidably arranged in the slide groove; the pressure strip is arranged on the outer side of the center block near the front, and is used to press the slide; The slide locking device also includes a limiting structure, which includes a limiting block and a limiting strip; the two limiting blocks are respectively arranged on the left and right sides of the main frame plate and are connected to the baffle plate, and the limiting blocks are provided with limiting grooves extending in the front-back direction, and the limiting grooves penetrate the side of the limiting blocks close to the main frame plate; the two limiting strips are respectively arranged on the left and right sides of the center block, and the ends of the limiting strips away from the center block are inserted into the limiting grooves; The slide locking device also includes a clamping bolt and a bolt fixing block, wherein a clamping screw hole for the clamping bolt to pass through is arranged in the middle of the bolt fixing block; the left and right sides of the bolt fixing block are symmetrically provided with fixing rods extending left and right, the ends of the fixing rods are provided with clamping columns extending up and down, and the rear end of the limiting groove is provided with a clamping groove matching the clamping column; One of the limit blocks is provided with a T-shaped slide bar extending in the front-rear direction on the side away from the central block, and the other limit block is provided with a connecting block on the side away from the central block, wherein a first T-shaped groove is provided in the connecting block; The mounting brackets are configured in plurality, and among two adjacent mounting brackets, one mounting bracket is connected to the first T-slot of the other mounting bracket through its T-sliding bar.

2. The puncture guide according to claim 1, wherein The body of the indicator is connected to a mounting block, on which a second T-shaped slot corresponding to the T-shaped slide bar is provided; The indicator body includes a scale box and a rotating disk, the scale box is provided with a circular opening, the back of the rotating disk protrudes outward, and the protruding part of the rotating disk is rotatably inserted into the circular opening of the scale box; wherein a puncture needle holder is provided on the front of the rotating disk, and rotating scales are distributed around the circular opening on the scale box.

3. The puncture guide according to claim 2, wherein, The puncture needle holder is cylindrical in shape as a whole, and comprises a first clamping portion and a second clamping portion which are arranged opposite to each other; The rotating disk is provided with a slideway extending radially along the puncture needle holder, and a blocking block is provided in the slideway; the second clamping portion is provided with an N-shaped connecting piece, and the N-shaped connecting piece is sleeved on the outside of the blocking block, and the N-shaped connecting piece is provided with a return spring on the side away from the outlet end, and the end of the return spring away from the N-shaped connecting piece is connected to the blocking block; The rotating disk is also provided with two fixing grooves located on opposite sides of the slideway; the first clamping portion is provided with two fixing columns corresponding to the fixing grooves; The distance from the side wall of the rotating disk to which the opening end of the N-shaped connector faces to the blocking block is smaller than the distance from the side wall of the rotating disk to which the opening end of the N-shaped connector faces to the fixing groove.

4. The puncture guide according to claim 3, wherein, The N-shaped connector is connected to a second handle on the outside of the side away from the outlet end. The second handle is slidably arranged in the slideway, and the end of the second handle away from the N-shaped connector passes through the side wall of the rotating disk; the first handle is connected to the outside of the side wall of the rotating disk opposite to the opening end of the N-shaped connector.

5. The puncture guide according to claim 3, characterized in that, The rotating disk comprises a shell and a cover, wherein the shell is cylindrical with one end open, and the cover is arranged on the open end of the shell; The cover body includes a first half cover and a second half cover that are arranged opposite to each other; the first half cover is provided with two fixing holes, the positions of the fixing holes correspond to the fixing grooves, and the fixing columns of the first clamping part can pass through the fixing holes and be inserted into the fixing grooves; the second half cover is provided with two strip holes, and the second clamping part is connected to the N-shaped connecting piece by two connecting columns passing through the strip holes.

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