CN112386320A - Guiding instrument box and puncture guiding and releasing mechanism - Google Patents
Guiding instrument box and puncture guiding and releasing mechanism Download PDFInfo
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- CN112386320A CN112386320A CN202011407383.6A CN202011407383A CN112386320A CN 112386320 A CN112386320 A CN 112386320A CN 202011407383 A CN202011407383 A CN 202011407383A CN 112386320 A CN112386320 A CN 112386320A
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- guide
- main body
- puncture
- depth
- control arm
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- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 238000003780 insertion Methods 0.000 claims abstract description 5
- 230000037431 insertion Effects 0.000 claims abstract description 5
- 206010011906 Death Diseases 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 3
- 230000009545 invasion Effects 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Classifications
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- 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
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- 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
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
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- 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
-
- 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
Abstract
The invention relates to a guide instrument box and a puncture guide and release mechanism. The guide instrument box comprises a main body and a guide opening and closing flap extending out of the side part of the main body, the guide opening and closing flap comprises a first guide opening and closing flap and a second guide opening and closing flap which are connected through a guide flap rotating shaft, and the guide opening and closing flap is kept closed through an elastic piece to form a through hole for a puncture needle to pass through; on one side surface of the second guide opening and closing flap, an inclined surface is formed, the inclined surface being configured to be capable of abutting with a release push rod inserted from the rear of the body into a first depth range to control an opening degree of the guide opening and closing flap based on an insertion depth of the release push rod. In the scheme of the embodiment of the invention, the guide instrument box has an opening and closing function, the guide instrument box and the control arm can share the driving device, the invasion to the operation space is smaller, the structure is simple, the operation is convenient and fast, and the cost is low.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a guide instrument box and a puncture guide and release mechanism.
Background
Cancer is a major disease that endangers human health. In recent years, with the continuous development of pulsed bioelectricity, electric field pulses have received wide attention with their non-thermal, minimally invasive biomedical utility, and are gradually applied to clinical treatment of tumors. Minimally invasive therapy often requires treatment by accessing a puncture needle to a lesion area in a human body, and the puncture needle is usually positioned by matching with a puncture template under the guidance of ultrasound or other medical imaging equipment so as to reach a desired target position.
The existing multi-needle puncture guiding system is provided with an opening and closing mechanism for positioning a puncture needle, but the opening and closing mechanism is fixedly arranged on a puncture needle guide arm, so that the opening and closing mechanism cannot be disassembled for disinfection. Therefore, a sheath tube which can be disassembled and sterilized is needed to be arranged between the puncture needle and the puncture needle guide arm. In the operation, after each puncture needle is arranged, a sheath tube is reserved on the needle body of the puncture needle, so that the use is inconvenient, and the operation time is prolonged. In addition, an independent driving device is required to be arranged for the opening and closing mechanism, the structure is complex, and the production cost is high.
Disclosure of Invention
In order to solve the technical problems that the opening and closing mechanism of the multi-needle puncture guiding system cannot be detached and the system structure is complex, the invention provides a guiding instrument box and a puncture guiding and releasing mechanism.
According to one aspect of the invention, the guide instrument cartridge comprises:
a main body;
the guide opening and closing flap extends out of the side part of the main body and comprises a first guide opening and closing flap and a second guide opening and closing flap which are connected through a guide flap rotating shaft, and the guide opening and closing flaps are kept closed through an elastic piece to form a through hole for the puncture needle to pass through;
on one side surface of the second guide opening and closing flap, an inclined surface is formed, the inclined surface being configured to be capable of abutting with a release push rod inserted from the rear of the body into a first depth range to control an opening degree of the guide opening and closing flap based on an insertion depth of the release push rod.
In one embodiment, the guide instrument cartridge further comprises: a first engaging portion for detachably attaching the main body to a control arm.
In one embodiment, the first engaging portion includes a guide member and a locking member, wherein the guide member is a guide post protruding from the rear portion of the main body, and the locking member is a hook.
In one embodiment, the main body is further provided with a detaching button, the detaching button is connected with the hook, and the locking between the hook and the control arm is released by pressing the detaching button.
In one embodiment, the resilient member is a tension spring between the bottom of the body and a lower surface of the first side of the second guide opening and closing flap.
In one embodiment, a service life indicating slide block capable of sliding along the axial direction of the main body is further arranged in the main body,
the life indicating slider is configured to be capable of abutting with a release push rod inserted from the rear of the main body into a second depth range to slide from a normal life position to an end life position,
wherein the depth of the first depth range is less than the depth of the second depth range.
In one embodiment, a limit slide rail is arranged in the main body, a raised one-way buckle is arranged on the limit slide rail, one side of the one-way buckle close to the rear part of the main body is provided with an inclined plane, one side of the one-way buckle close to the front part of the main body forms a stop structure,
the service life indicating slide block slides along the limiting slide rail, and the service life indicating slide block is limited to reversely move by the stop structure of the one-way buckle.
In one embodiment, two one-way buckles are arranged on one limiting slide rail, and the distance between the two one-way buckles is the same as the size of the sliding part of the service life indicating slide block along the axial direction of the main body.
In one embodiment, the limit slide rail comprises an upper rail and a lower rail, the upper rail and the lower rail are respectively and correspondingly provided with the one-way buckles,
and a friction reducing groove is formed on the upper surface or the lower surface of the sliding part of the service life indicating slide block.
In one embodiment, the life indication slider has a sliding portion and a life indication portion provided at a side end of the sliding portion, the life indication portion has a life normal indication portion at a front portion and a life end indication portion at a rear portion,
and a service life indicating hole is formed on the main body corresponding to the service life indicating part.
According to another aspect of the invention, the puncture guide and release mechanism comprises a control arm and a guide instrument cartridge according to one of claims 1 to 10 detachably mounted to the front end of the control arm,
the control arm includes a release push rod telescopically inserted into the guide instrument box body at a front end of the control arm.
In one embodiment, the control arm further comprises a second engagement portion that matingly engages with the first engagement portion of the guide instrument cartridge.
In one embodiment, the control arm further comprises a mounting seat, the release push rod is fixed on the mounting seat, and the mounting seat is driven by a motor.
In one embodiment, the mounting seat is slidably disposed on a guide rail along an axial direction of the control arm,
the motor drives the screw rod to rotate, and the external thread of the screw rod is meshed with the internal thread in the through hole of the mounting seat, so that the mounting seat can reciprocate on the guide rail.
In one embodiment, the mounting block is further fixed with a depth control device, and the mounting block slides in a third depth range to limit the puncture depth of the puncture needle through the depth control device.
In one embodiment, the depth control device comprises a baffle fixing seat and a puncture needle baffle, the baffle fixing seat extends out from the side part of the control arm, the puncture needle baffle is detachably arranged on the baffle fixing seat, a non-closed perforation for the puncture needle to pass through is arranged on the puncture needle baffle, and the non-closed perforation is opposite to a through hole formed by closing the guide opening and closing flap.
The invention has the beneficial effects that: according to the guide instrument box and the puncture guide and release mechanism provided by the embodiment of the invention, the guide instrument box has an opening and closing function, the guide instrument box and the control arm can share the driving device, the invasion to an operation space is smaller, the structure is simple, the operation is convenient and fast, and the cost is low.
Drawings
FIG. 1 is a schematic illustration of the use of a puncture guide and release mechanism according to an embodiment of the present invention;
FIG. 2 is a rear side view of the puncture guide and release mechanism according to an embodiment of the present invention;
FIG. 3 is a front side view of the puncture guide and release mechanism according to an embodiment of the present invention;
FIG. 4 is a partial component block diagram (a cross-sectional view of a second guide split flap) of the interior of the main body of the guide instrument box A according to the embodiment of the present invention;
FIG. 5 is a front view of the interior components of the body of the guide instrument cartridge A according to the present invention;
fig. 6 is a schematic view of the guiding instrument box a according to the embodiment of the invention, which guides the opening and closing flap 2 to be in a release state under the control of the release push rod;
FIG. 7 is a schematic view of the guiding instrument box A according to the embodiment of the present invention, which guides the opening/closing flap 2 to be in a closed state under the control of the release push rod;
FIG. 8 is a view of the internal parts of the main body of the guide instrument case A (with the life indicating slider at the life normal position) according to the embodiment of the present invention;
fig. 9 is a longitudinal sectional view of a guide instrument cartridge a according to an embodiment of the present invention (the life indicating slider is in the life normal position);
FIG. 10 is a view of the internal components of the body of a guide instrument cartridge A (with the end-of-life slide in the end-of-life position) according to an embodiment of the present invention;
FIG. 11 is a longitudinal cross-sectional view of a guide instrument cartridge A (end-of-life position of the life indicating slide) according to an embodiment of the present invention;
FIG. 12 is a view showing an assembly structure of a life indicating slider of a guide instrument cartridge A in a main body according to an embodiment of the present invention;
FIG. 13 is a longitudinal cross-sectional view of the body of a guide instrument cartridge A according to an embodiment of the present invention;
FIG. 14 is a rear perspective view of a life indicating slide of a guide instrument cartridge A in accordance with an embodiment of the present invention;
FIG. 15 is a front perspective view of a life indicating slide of a guide instrument cartridge A according to an embodiment of the present invention;
FIG. 16 is a schematic view of the internal structure of the puncture guide and release mechanism according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following examples.
As used herein, the term "include" and its various variants are to be understood as open-ended terms, which mean "including, but not limited to. The term "based on" and the like may be understood as "based at least on". The terms "first", "second", "third", etc. are used merely to distinguish different features and have no essential meaning. The terms "left", "right", "middle" and the like are used only to indicate a positional relationship between relative objects.
1-16, embodiments of the present invention provide a guide instrument cartridge A and a puncture guide and release mechanism. Referring to fig. 1-3, 6, 7 and 16, the puncture guide and release mechanism according to the embodiment of the present invention includes a control arm B including a release push rod 3 telescopically inserted into a body of a guide instrument cartridge a at a front end of the control arm B, and the guide instrument cartridge a detachably mounted to the front end of the control arm B.
In use, as shown in fig. 1, the puncture depth of the puncture needle C is limited by the depth control device on the control arm B, and the puncture needle C penetrates out of the through hole 25 on the guide instrument box a and further penetrates through the puncture template D to be inserted into a lesion area, so as to puncture biological tissues.
The guide instrument box A of the embodiment of the invention comprises a main body 1 and a guide opening and closing flap 2. As shown in fig. 2 to 7, the guide opening and closing flap 2 extends from the side of the main body 1 and includes a first guide opening and closing flap 21 and a second guide opening and closing flap 22 connected by a guide flap rotating shaft 23, and the guide opening and closing flap 2 is kept closed by an elastic member 24 to form a through hole 25 for passing the puncture needle C. On one side surface of the second guide opening and closing flap 22, an inclined surface 221 is formed, the inclined surface 221 being configured to be capable of abutting against the release push rod 3 inserted into a first depth range from the rear of the main body 1 to control the opening degree of the guide opening and closing flap 2 based on the insertion depth of the release push rod 3. When in use, the release push rod 3 is inserted into the main body 1 from the rear part of the main body 1, and forms an abutting joint with the inclined surface 221 along with the continuous extension of the release push rod 3, and continuously overcomes the resistance of the elastic piece 24 downwards along the inclined surface 221 to abut against the second guide opening and closing flap 22, and the second guide opening and closing flap 22 gradually opens along with the continuous extension of the push rod 3 until the release push rod 3 reaches the top of the second guide opening and closing flap 22 along the inclined surface 221, as shown in fig. 6. At this time, the second guide opening and closing flap 22 is opened to the maximum. Wherein, from the time when the release plunger 3 comes into abutment with the inclined surface 221 to the time when the release plunger 3 reaches the top of the second guide opening and closing flap 22 (the second guide opening and closing flap 22 is not opened), the insertion depth range of the release plunger 3 constitutes the first depth range.
Specifically, as shown in fig. 4 to 7, the first guide opening and closing flap 21 is fixed on the main body 1, the middle portion of the second guide opening and closing flap 22 is rotatably connected to the first guide opening and closing flap 21 through a guide flap rotating shaft 23, the elastic member 24 is a tension spring, and is disposed between the bottom of the main body 1 and the lower surface of the first side of the second guide opening and closing flap 22, and the tension spring keeps the guide opening and closing flap 2 closed to form a through hole 25 for the puncture needle to pass through. On the upper surface of the second guide opening and closing piece 22 on the first side opposite to the through hole 25 with respect to the guide piece rotating shaft 23, an inclined surface 221 inclined downward toward the rear of the main body is formed, and the inclined surface 221 in this embodiment is the bottom surface of one sliding groove of the upper surface of the second guide opening and closing piece 22.
As shown in fig. 8 to 15, a life indication slider 4 capable of sliding in the axial direction of the main body 1 is further provided in the main body 1. The life indication slider 4 is used to indicate the end of the service life of the guide instrument box a by moving. The life indication slider 4 is configured to be capable of abutting with a release push rod 3 inserted into a second depth range from the rear of the main body 1 to slide from a normal life position to an end-of-life position, wherein the second depth range is a depth range in which the release push rod 3 pushes the life indication slider 4 from the normal life position to the end-of-life position, and the depth of the first depth range is smaller than the depth of the second depth range.
As described above, the release rod 3 is not continuously inserted into the main body 1, and the second guide opening and closing flap 22 is opened to the maximum. Thereafter, if the guide instrument box a reaches the number of times of use or the use period, the control release push rod 3 continues to extend into the main body 1, then abuts against the life indication slide block 4, and pushes the life indication slide block 4 to move towards the front end of the main body 1, and moves from a first position to a second position, wherein the first position corresponds to a normal life position, and the second position corresponds to an end-of-life position, and the life indication slide block 4 at the second position identifies the end of life of the guide instrument box a.
Specifically, as shown in fig. 14 and 15, the life indication slider 4 includes a sliding portion 41 and a life indication portion 42 provided at a side end of the sliding portion 41, the life indication portion 42 includes a life normal indication portion 421 located at a front portion and a life end indication portion 422 located at a rear portion, and a life indication hole 43 is opened in the main body 1 corresponding to the life indication portion 4.
A guide instrument case a for normal use, in which the life indication slider 4 is in a life normal position, and the life normal indication portion 421 at the front is opposed to the life indication hole 43 of the main body 1, as shown in fig. 8 and 9; when the guide instrument box a reaches the number of uses or the length of use, the end-of-life indicating slider 4 slides to the end-of-life position, and the end-of-life indicating portion 422 opposes the end-of-life indicating hole 43 of the main body 1, as shown in fig. 10 and 11. The normal life indicator 421 and the end life indicator 422 of the life indicator 42 may be marked with different colors, for example, the normal life indicator 421 is green, and the end life indicator 422 is red, so that when the red color is seen through the life indicator hole 43, it indicates that the guide instrument box a cannot be used continuously, so as to remind the user to replace the guide instrument box a with a new one.
In order to facilitate the sliding of the life indication slider 4 in the main body 1, as shown in fig. 8-13, a limit slide rail 44 is disposed in the main body 1, a protruding one-way buckle 45 is disposed on the limit slide rail 44, one side of the one-way buckle 45 near the rear portion of the main body 1 has an inclined surface, one side of the one-way buckle 45 near the front portion of the main body 1 forms a stop structure, the sliding portion 41 of the life indication slider 4 slides along the limit slide rail 44, and the stop structure of the one-way buckle 45 limits the reverse movement of the life indication slider 4, so that the life indication slider 4 cannot be separated from the rear portion of the main body 1, and particularly cannot be returned to the normal life position from the end life position, thereby preventing reuse.
In the preferred embodiment of the present invention, the limit slide rail 44 includes an upper rail and a lower rail, and the one-way fasteners 45 are respectively and correspondingly disposed on the upper rail and the lower rail. More preferably, two one-way buckles 45 are arranged on one of the limit slide rails 44, and the distance between the two one-way buckles 45 is the same as the axial size of the sliding part 41 of the life indication sliding block 4 along the main body 1, so that the upper rail and the lower rail can stably clamp the life indication sliding block 4 without shaking, and the life of the guide instrument box a can be accurately indicated to be normal. The upper surface and/or the lower surface of the sliding part 41 of the life indicating slider 4 is formed with a friction reducing groove 411 to reduce friction between the surface of the sliding part 41 and the end of the one-way catch 45 and the slide rail 44.
Referring again to fig. 2-5, 8-11, the guide instrument cartridge a further includes a first catch 5 for removably attaching the main body 1 to the control arm B. The first engaging portion 5 can be formed in various manners such as mechanical engagement or electromagnetic engagement, so that the guide instrument box a can be attached to the end of the control arm B. Due to the detachable arrangement of the guide instrument box A, the guide opening and closing valve 2 can be more easily sterilized or the guide instrument box A can be integrally replaced.
In the embodiment of the present invention, the first engaging portion 5 is disposed at the rear of the main body 1, and includes a guide member 51 and a locking member 52, wherein the guide member 51 is a guide post protruding from the rear of the main body 1, and the locking member 52 is a hook. The main body 1 is further provided with a detaching button 53, the detaching button 53 is supported in a button groove 54 on the main body 1 through a spring, the detaching button 53 is connected with the hook 52, and the locking between the hook and the control arm B is released by pressing the detaching button 53 towards the button groove 54. Accordingly, the control arm B includes a second engaging portion 6 that is engaged with the first engaging portion 5 of the guide instrument case a, and has a guide hole 61 for receiving the guide member 51 and a hook fixing hole 62 for engaging with the hook, as shown in fig. 3. Thus, when the guide instrument cartridge a is attached to the end of the control arm B using the above-described configuration of the first engaging portion 5 and the second engaging portion 6, the guide instrument cartridge a is not rotated on the control arm B due to the double positioning of the guides 51 and 61 and the locking pieces 52 and 62.
As shown in fig. 3, 4, 6, 7 and 16, the release push rod 3 is fixed on the mounting seat 72, and the mounting seat 72 is driven by a motor and slidably arranged on a guide rail along the axial direction of the control arm B, so that the release push rod 3 can be extended from the release push rod hole 63 at the front end of the control arm B and inserted into the guide instrument box a.
As shown in fig. 6, 7 and 16, in the embodiment of the present invention, the control arm B includes a motor 71, a mounting base 72, a guide rail 73 and a lead screw 74. The motor 71 drives the screw rod 74 to rotate, the external thread of the screw rod 74 is meshed with the internal thread in the through hole of the mounting seat 72, and the mounting seat 72 is driven to reciprocate on the guide rail 73.
As shown in fig. 2, 3, 6, 7 and 16, a depth control device 8 is further fixed to the mounting seat 72, and the depth control device 8 slides along the mounting seat 72 within a third depth range to limit the penetration depth of the puncture needle C by the depth control device 8. Wherein the depth of the third depth range is less than the depth of the first depth range.
Specifically, as shown in fig. 2 and 3, the depth control device 8 includes a baffle fixing seat 81 and a puncture needle baffle 82, the baffle fixing seat 81 extends out from a side portion of the control arm B, the puncture needle baffle 82 is detachably disposed on the baffle fixing seat 81, the puncture needle baffle 82 is provided with a non-closed through hole 83 for the puncture needle C to pass through, the non-closed through hole 83 is aligned with the through hole 25 formed by closing the guide opening and closing flap 2, so that during puncturing, the motor 71 drives the mounting seat 72 to move along the axial direction of the control arm B, a predetermined puncturing depth of the puncture needle C is set, then, the needle rod of the puncture needle C is attached to the side wall of the non-closed through hole 83 of the puncture needle baffle 82, and the needle point of the puncture needle C passes through the through hole 25 of the guide opening and closing flap 2, and further punctures biological. When the shank of the puncture needle C comes into contact with the peripheral edge of the non-closed penetration hole 83 of the puncture needle shutter 82, a predetermined puncture depth is reached, and the puncture is stopped. The puncturing operation of the embodiment of the present invention can be used for single needle treatment or biopsy, and multiple needle treatment or biopsy can be realized by repeating the operation for many times. In this embodiment, the needle shield 82 is removably positioned to facilitate sterilization of the needle shield 82 or replacement of the needle shield 82.
When the puncture guiding and releasing mechanism of the embodiment of the invention works, the motor 71 drives the screw rod 74 to rotate, and the mounting seat 72 on the screw rod 74 can reciprocate along the guide rail 73. In this process, the penetration guiding and releasing mechanism works in a three-segment stroke interval.
A first stroke interval for controlling the puncture depth of the puncture needle C: according to the puncture position of the puncture needle C, the motor 71 drives the mounting seat 72 and the depth control device 8 thereon to advance or retreat within a third depth range, the puncture needle baffle 82 is arranged at a corresponding position, and the preset puncture depth of the puncture needle C is set; subsequently, the puncture needle C is inserted through the non-closed perforation 83 of the puncture needle shield 82 and the through hole 25 of the guide opening and closing flap 2 until the puncture needle handle abuts against the puncture needle shield 82, and the puncture is completed.
And controlling the second stroke interval of the opening and closing of the guide opening and closing flap 2 of the guide instrument box A: after the puncture is completed, the motor 71 continues to drive the mounting seat 72 and drive the release push rod 3 thereon to move forward, the release push rod 3 abuts against the inclined surface 221 of the upper surface of the second guide opening and closing flap 22 within the first depth range, and downwardly abuts against the second guide opening and closing flap 22, so that the guide opening and closing flap 2 is opened, and the puncture needle C is released.
And then, the puncture guiding and releasing mechanism repeats the actions in the first stroke interval and the second stroke interval for a plurality of times according to the puncture position of the subsequent puncture needle C, and completes the puncture of the puncture needles C.
A third stroke interval controlling the status of the life indicator of the guide instrument cartridge a: normally, the life indication slider 4 of the guide instrument cartridge a is in the life normal position, and the life normal indication portion 421 of the front portion is opposed to the life indication hole 43 of the main body 1, for example, displayed in green. When the guide instrument box A reaches the use times or the use duration, the motor 71 drives the mounting seat 72 and drives the release push rod 3 thereon to move forward continuously, the release push rod 3 pushes the life indication slide block 4 to move forward to the end-of-life position within the second depth range, and the end-of-life indication part 422 at the rear part is opposite to the life indication hole 43 on the main body 1, for example, displays red color to indicate that the guide instrument box A can not be used continuously and needs to be replaced.
According to the invention, through the design that the motor 71 drives the mounting seat 72 to reciprocate in three stroke intervals, three different functions are realized under the condition of not increasing the structural complexity, the structure is simplified, and the cost is saved.
According to the guide instrument box and the puncture guide and release mechanism provided by the embodiment of the invention, the guide instrument box has an opening and closing function, the guide instrument box and the control arm can share the driving device, the invasion to an operation space is smaller, the structure is simple, the operation is convenient and fast, and the cost is low.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A guide instrument cartridge, comprising:
a main body;
the guide opening and closing flap extends out of the side part of the main body and comprises a first guide opening and closing flap and a second guide opening and closing flap which are connected through a guide flap rotating shaft, and the guide opening and closing flaps are kept closed through an elastic piece to form a through hole for the puncture needle to pass through;
on one side surface of the second guide opening and closing flap, an inclined surface is formed, the inclined surface being configured to be capable of abutting with a release push rod inserted from the rear of the body into a first depth range to control an opening degree of the guide opening and closing flap based on an insertion depth of the release push rod.
2. The guide instrument cartridge of claim 1, further comprising: a first engaging portion for detachably attaching the main body to a control arm.
3. The guide instrument box of claim 2, wherein the first engaging portion comprises a guide member and a locking member, wherein the guide member is a guide post protruding from the rear portion of the main body, and the locking member is a hook.
4. The guide instrument box according to claim 3, wherein a removal button is further provided on the main body, the removal button being connected to the hook, and the locking between the hook and the control arm being released by pressing the removal button.
5. The guide instrument cartridge of claim 1, wherein the resilient member is a tension spring between the bottom of the body and a lower surface of the first side of the second guide split flap.
6. The guide instrument cartridge according to claim 1, wherein a life indicating slider capable of sliding in an axial direction of the main body is further provided in the main body,
the life indicating slider is configured to be capable of abutting with a release push rod inserted from the rear of the main body into a second depth range to slide from a normal life position to an end life position,
wherein the depth of the first depth range is less than the depth of the second depth range.
7. The guide instrument box of claim 6, wherein a limit slide is provided in the main body, a raised one-way catch is provided on the limit slide, one side of the one-way catch near the rear of the main body has an inclined slope, one side of the one-way catch near the front of the main body forms a stop structure,
the service life indicating slide block slides along the limiting slide rail, and the service life indicating slide block is limited to reversely move by the stop structure of the one-way buckle.
8. The guide instrument box of claim 7, wherein two one-way fasteners are disposed on one of the limit slide rails, and a distance between the two one-way fasteners is equal to a dimension of the sliding portion of the life indicator slider along the axial direction of the main body.
9. The guiding instrument box of claim 7 or 8, wherein the limiting slide rail comprises an upper rail and a lower rail, the upper rail and the lower rail are respectively and correspondingly provided with the one-way buckles,
and a friction reducing groove is formed on the upper surface or the lower surface of the sliding part of the service life indicating slide block.
10. The guide instrument cartridge according to claim 6, wherein the life indicating slider has a slide portion and a life indicating portion provided at a side end of the slide portion, the life indicating portion having a normal life indicating portion at a front portion and an end-of-life indicating portion at a rear portion,
and a service life indicating hole is formed on the main body corresponding to the service life indicating part.
11. A puncture guide and release mechanism comprising a control arm and a guide instrument cartridge according to any one of claims 1 to 10 detachably mounted to a front end of the control arm,
the control arm includes a release push rod telescopically inserted into the guide instrument box body at a front end of the control arm.
12. The puncture guide and release mechanism of claim 11, wherein the control arm further comprises a second detent that matingly engages the first detent of the guide instrument cartridge.
13. The puncture guide and release mechanism of claim 11, wherein the control arm further comprises a mounting block, the release plunger being secured to the mounting block, the mounting block being driven by a motor.
14. The lancing guide and release mechanism of claim 13, wherein the mount is slidably disposed on a guide rail that is axial to the control arm,
the motor drives the screw rod to rotate, and the external thread of the screw rod is meshed with the internal thread in the through hole of the mounting seat, so that the mounting seat can reciprocate on the guide rail.
15. The puncture guide and release mechanism of claim 13, wherein a depth control device is further secured to the mounting block, the mounting block being slidable within a third depth range to limit the puncture depth of the puncture needle by the depth control device.
16. The puncture guide and release mechanism of claim 15, wherein the depth control device comprises a retainer mount and a puncture needle retainer, the retainer mount extends from a side of the control arm, the puncture needle retainer is detachably disposed on the retainer mount, the puncture needle retainer has a non-closed perforation for the puncture needle to pass through, and the non-closed perforation is opposite to a via hole formed by the closed guide opening and closing flap.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407383.6A CN112386320B (en) | 2020-12-04 | 2020-12-04 | Guiding instrument box and puncture guiding and releasing mechanism |
| PCT/CN2021/084410 WO2022116448A1 (en) | 2020-12-04 | 2021-03-31 | Guide instrument cassette and puncture guide and release mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407383.6A CN112386320B (en) | 2020-12-04 | 2020-12-04 | Guiding instrument box and puncture guiding and releasing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112386320A true CN112386320A (en) | 2021-02-23 |
| CN112386320B CN112386320B (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011407383.6A Active CN112386320B (en) | 2020-12-04 | 2020-12-04 | Guiding instrument box and puncture guiding and releasing mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112386320B (en) |
| WO (1) | WO2022116448A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113616294A (en) * | 2021-07-23 | 2021-11-09 | 北京箴石医疗科技有限公司 | Puncture device, guiding device and operation puncture equipment |
| WO2022116448A1 (en) * | 2020-12-04 | 2022-06-09 | 上海睿刀医疗科技有限公司 | Guide instrument cassette and puncture guide and release mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116604384B (en) * | 2023-07-20 | 2023-09-15 | 南通固邦数控机床有限公司 | Driving mechanism special for numerical control machine tool |
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Also Published As
| Publication number | Publication date |
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| WO2022116448A1 (en) | 2022-06-09 |
| CN112386320B (en) | 2021-07-23 |
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