CN112237482A - Locator and location piercing depth - Google Patents

Locator and location piercing depth Download PDF

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Publication number
CN112237482A
CN112237482A CN201910640622.3A CN201910640622A CN112237482A CN 112237482 A CN112237482 A CN 112237482A CN 201910640622 A CN201910640622 A CN 201910640622A CN 112237482 A CN112237482 A CN 112237482A
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CN
China
Prior art keywords
positioning
guide pin
angle
arm body
hook
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910640622.3A
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Chinese (zh)
Inventor
蔡立民
谭志超
袁胜超
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Dongguan Tcm Hospital
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Dongguan Tcm Hospital
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Filing date
Publication date
Application filed by Dongguan Tcm Hospital filed Critical Dongguan Tcm Hospital
Priority to CN201910640622.3A priority Critical patent/CN112237482A/en
Publication of CN112237482A publication Critical patent/CN112237482A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8897—Guide wires or guide pins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/90—Guides therefor

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses a positioner and a positioning puncture device. The above-mentioned locator includes: a guide pin mounting part; the guide pin mounting part is movably mounted on the sliding positioning part and can slide along the sliding positioning part; the movable arm comprises an arm body and a positioning hook extending from the first end of the arm body, and the free end of the positioning hook and the axis of the guide pin are positioned on the same straight line; the arm body is movably connected with the angle positioning part so as to enable the movable arm to move towards a direction close to or far away from the sliding positioning part by taking the free end of the positioning hook as a circle center; the positioning puncture device comprises the positioner and a guide pin, and the guide pin is coaxially mounted on the guide pin mounting part. The positioner disclosed by the invention has the advantages of high positioning precision, adjustable positioning angle, wide application range and capability of reducing the operation difficulty.

Description

Locator and location piercing depth
Technical Field
The invention relates to the technical field of medical equipment, in particular to a positioner and a positioning puncture device.
Background
The point-to-point or point-to-elbow and shoulder pelvis locator used under the arthroscope at present is mainly applied to knee joints, and the adjustable range of the locator is about 40-60 degrees, so that the locator is not suitable for shoulder pelvis and humerus joints. Boileau et al propose to replace the original screw fixation with a sutured button fixation and use a guided Latarjet system that fixes an included angle of 10 degrees and cannot adjust the angle. Also, students in China use the double-cylinder shoulder and pelvis positioner, the length of which is 120mm, and the shoulder and pelvis positioner is formed by connecting two hollow titanium alloy pipes with the distance of 5-10mm by using titanium alloy with the thickness of 3 mm. One hollow tube has an inner diameter of 4.5mm (used for being sleeved in the exchange rod), and the other hollow tube has an inner diameter of 2.5mm and used for placing a guide pin of 2.4 mm. The glenoid locator can only take the glenoid articular surface as a reference, and a bone tract is drilled with a fixed distance of 5-10mm under the articular surface, so that the application range is narrow. When the shoulder arthroscope is operated, brachial plexus nerves and blood vessels are arranged on the front side of a shoulder, suprascapular nerves and blood vessels are arranged on the rear side of the shoulder, and the premise of fixing by using a button steel plate is to make bone tunnels, the positioning of the bone tunnels is highly accurate so as to avoid damaging important soft tissues such as nerve vessels and the like, and the positioning accuracy of the conventional shoulder joint positioner is not high. The anatomical structure of the glenoid has individual difference, and the fixing of the non-adjustable glenoid locator can increase the difficulty of the operation and increase the incidence rate of complications.
Disclosure of Invention
Therefore, the invention needs to provide a positioner which has high positioning precision, adjustable positioning angle and wide application range and can reduce the operation difficulty.
The invention also provides a positioning puncture device.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a locator, comprising:
a guide pin mounting part;
the guide pin mounting part is movably mounted on the sliding positioning part and can slide along the sliding positioning part;
the movable arm comprises an arm body and a positioning hook extending from the first end of the arm body, and the free end of the positioning hook and the axis of the guide pin mounting part are positioned on the same straight line;
the angle positioning component is an arc component and is connected to the sliding positioning component, and the arm body is movably connected to the angle positioning component so that the movable arm moves towards or away from the direction of the sliding positioning component by taking the free end of the positioning hook as a circle center.
The positioner is beneficial to accurate operation of an operation by pressing the scapula plane through the movable arm as a reference, and the movable arm moves along the angle positioning part to adjust the positioning angle, so that the difficulty of the operation can be reduced, the positioner can be suitable for individuals with different race, height and weight, and the application range is wider; the axle center of the guide pin on the guide pin installation component is aligned with the free end of the positioning hook through point to point, the needle is accurately discharged, the human organ is prevented from being injured by mistake, the positioning accuracy of the operation is improved, and the operation difficulty is further reduced.
In some of these embodiments, the angular positioning member is provided with an angle identification member to identify the angle of movement of the arm body.
In some embodiments, the arm body is movably connected to the angular positioning component by a socket.
In some of these embodiments, the socket is provided with a locking feature for locking the arm body on the angular positioning feature.
In some embodiments, the locking component includes a positioning hole opened on the top surface of the socket and a locking post installed in the positioning hole, and the locking post abuts against the angle positioning component when moving along the positioning hole toward the angle positioning component, so as to prevent the socket from moving along the angle positioning component.
In some embodiments, the locking post is threaded into the socket.
In some embodiments, the center point of the free end of the positioning hook and the axis of the guide pin mounting part are located on the same straight line.
In some embodiments, the corners of the positioning hook are all right angles.
In some embodiments, the sliding positioning component is a positioning sleeve, the positioning sleeve is sleeved on the guide pin mounting component, and the sliding positioning component and the angle positioning component are integrally arranged.
The invention also provides a positioning puncture device, which comprises the positioner and a guide pin, wherein the guide pin is coaxially arranged on the guide pin mounting part.
Drawings
FIG. 1 is a schematic view of a positioning and puncturing device according to a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the positioning and piercing device of FIG. 1;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is a schematic view of the positioning and piercing device of fig. 1 engaged with a scapula.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Examples
Referring to fig. 1 and 2, the present invention provides a positioner for positioning an organ in various examinations or operations. The locator comprises a guide pin installation part 10, a sliding positioning part 30, a movable arm 40 and an angle positioning part 50, wherein the guide pin installation part 10 is movably installed on the sliding positioning part 30 and can slide along the sliding positioning part 30, the movable arm 40 comprises an arm body 41 and a positioning hook 42 extending from the first end of the arm body 41, the free end 420 of the positioning hook 42 and the axis of the guide pin installation part 10 are positioned on the same straight line, the angle positioning part 50 is an arc part and is connected to the sliding positioning part 30, and the arm body 40 is movably connected to the angle positioning part 50 so that the movable arm 40 moves towards the direction close to or far away from the sliding positioning part 30 by taking the free end 420 of the positioning hook 42 as the circle center.
Referring to fig. 4, when the scapular pelvis examination or operation is performed, the front edge of the scapular pelvis 100 is hooked by the positioning hook 42 of the movable arm 40, the free end 420 of the positioning hook 42 determines the needle outlet point of the guide needle 20, no matter how many angles the movable arm 40 rotates, the center of the free end 420 of the positioning hook 42 is always fixed and is in the same axis with the guide needle 20, the center of the guide needle installation part 10 is fixed, the guide needle is installed on the guide needle installation part 10, and the center of the guide needle is also always in the center of the free end 420 of the positioning hook 42, so that point-to-point alignment is realized, accurate needle outlet can be ensured, important soft tissues such as nerve and blood vessels cannot be accidentally injured, the operation positioning accuracy is improved, and the operation difficulty is further reduced.
The scapula plane is pressed by the movable arm for reference, which is helpful for the precise operation of the operation.
The movable arm moves along the angle positioning part to adjust the positioning angle, so that a doctor can conveniently adjust the angle according to needs in the operation process, and the operation difficulty can be reduced; and the device can be suitable for individuals with different race, height and weight, and has wider application range.
Since the movable arm 40 is provided with the positioning hook 42, the positioning hook 42 has a protruding portion toward one side of the extending direction of the angular positioning member 50, and thus the minimum angle of the movable arm 40 is 4 degrees. Up to 45 degrees.
Referring to fig. 2, the guide pin mounting part 10 is formed in a long shape as a whole to facilitate sliding. The top end of which is provided with a handle 11 so as to push the guide pin mounting part 10 along the slide positioning part 30 by means of the handle 11.
In one embodiment, lead mounting component 10 is a sleeve and lead 20 can be mounted within the sleeve. Of course, other mounting and engagement manners of the guide pin mounting member 10 and the guide pin 20 are also possible.
Referring to fig. 2, in an embodiment, the sliding positioning component 30 is a positioning sleeve, and the positioning sleeve is sleeved on the guide pin mounting component 10. For example, a sliding cavity 31 is opened at the center of the positioning sleeve, and the guide pin mounting member 10 is slidably mounted in the sliding cavity 31 to realize the sliding connection with the guide pin mounting member 10.
In one embodiment, the arm body 41 is movably connected to the angular positioning member 50 by a socket 43. The socket 43 is fitted over the angular positioning member 50, and the arm body 41 is connected to the socket 43. In this embodiment, the arm body 41 and the socket 43 are integrally formed.
In one embodiment, the second end of the arm body 41 is movably connected to the angular positioning member 50. I.e. the end of the arm body 41 no longer extends at the angular positioning member 50, which makes the overall construction of the positioner more compact.
Referring to fig. 1, further, the socket 43 is provided with a locking component 44 for locking the arm body 41 on the angle positioning component 50. When the angle of the movable arm 40 is selected, the locking part 44 locks the socket 43, thereby preventing the movable arm 40 from continuously moving the angle.
Referring to fig. 2, in an embodiment, the locking component 44 includes a positioning hole 45 opened on the top surface of the socket 43 and a locking post 46 installed in the positioning hole 45, and when the locking post 46 moves along the positioning hole 45 toward the angle positioning component 50, the locking post abuts against the angle positioning component 50 to prevent the socket 43 from moving along the angle positioning component 50. Of course, the lock member 44 may have another configuration, and this is merely an example of an embodiment and is not limited thereto.
In one embodiment, the locking post 46 is threaded into the socket 43. Locking and unlocking can be completed by twisting the locking post 46.
Referring to fig. 1 and 2, in an embodiment, a center point of the free end 420 of the positioning hook 42 and an axis of the guide pin mounting part 10 are located on the same straight line. Thus, point-to-point positioning can be carried out more accurately. Of course, when the area of the free end 420 of the positioning hook 42 is small, the guide pin attaching part 10 may be aligned with the free end 420 of the positioning hook 42.
Referring to fig. 3, in one embodiment, the corners of the positioning hooks 42 are all right-angled. The right-angled positioning hook 42 can make the distance between the arm body 41 and the sliding positioning part 30 smaller, so that the adjustment angle of the positioning can be minimized, and at the same time, the free end 420 of the positioning hook 42 can ensure the unmoving position when the movable arm 40 rotates.
Further, the positioning hook 42 is provided with a distance marking member. This allows the length of the positioning hook to be seen and facilitates the replacement of the type of positioning hook 42 for different procedures.
Referring to fig. 1 and 2, further, the angle positioning component 50 is provided with an angle identification component 51 to identify the moving angle of the movable arm 40. This allows a clear view of how much it has moved on the angular positioning member 50 for a more clear positioning. For example, the angle indication part 51 is an angle scale.
In one embodiment, the sliding positioning component 30 and the angular positioning component 50 are integrally arranged, so as to ensure that the overall structure of the positioner is more stable.
When the above-described positioner is used for positioning a shoulder and a pelvis, the distance from the free end 420 of the positioning hook 42 to the bottom end of the positioning hook 42 is 6mm or 8mm, the distance from the free end 420 of the positioning hook 42 to the center of the angular positioning part 50 is 150mm, the length of the slide positioning part 30 is 30mm, and the length of the guide pin mounting part 10 is 130 mm.
When the positioner is used on other organs, the size can be adjusted according to application scenes.
The invention also protects a positioning puncture device 100, which comprises the positioner and also comprises a guide pin 20, wherein the guide pin 20 is coaxially arranged on the guide pin installation part 10. When the guide pin 20 is mounted on the axial center of the guide pin mounting part 10, the axial center of the guide pin mounting part 10 and the axial center of the positioning hook 42 are located on the same straight line, so that the center of the free end 420 of the positioning hook 42 is always fixed on the same axial center with the guide pin mounting part 10 no matter how many angles the movable arm 40 rotates, and is coaxial with the positioning hook 42 when the guide pin 20 is mounted on the axial center of the guide pin mounting part 10.
The guide pin 20 is used for puncturing the organ of the human body, and one side of the guide pin, which is close to the free end 420 of the positioning hook 42, is in a sharp shape. For example, when the positioner is used for scapular surgery, the guide pin 20 is an intraosseous k-wire.
In one embodiment, after positioning of the positioner is completed, lead 20 is inserted into lead mounting member 10 and inserted into the organ with the tip of lead mounting member 10 positioned directly.
In one embodiment, the diameter of the lead 20 can be 2.5mm or 3.0 mm. Of course, the diameter can be adjusted as desired.
When the positioner is used on other organs, the size can be adjusted according to application scenes.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A positioner, comprising:
a guide pin mounting part;
the guide pin mounting part is movably mounted on the sliding positioning part and can slide along the sliding positioning part;
the movable arm comprises an arm body and a positioning hook extending from the first end of the arm body, and the free end of the positioning hook and the axis of the guide pin mounting part are positioned on the same straight line;
the angle positioning component is an arc component and is connected to the sliding positioning component, and the arm body is movably connected to the angle positioning component so that the movable arm moves towards or away from the direction of the sliding positioning component by taking the free end of the positioning hook as a circle center.
2. A positioner according to claim 1, wherein the angular positioning members are provided with angle identification members to identify the angle at which the arm body moves.
3. A positioner according to claim 1 or 2, wherein the arm body is moveably connected to the angular positioning member by a socket.
4. A positioner according to claim 3, wherein the socket is provided with a locking member for locking the arm body on the angular positioning member.
5. The locator of claim 4, wherein the locking member comprises a locating hole opened in a top surface of the socket and a locking post mounted in the locating hole, the locking post abutting the angular positioning member when moving along the locating hole toward the angular positioning member to prevent the socket from moving along the angular positioning member.
6. The locator of claim 5, wherein the locking post is threaded to the socket.
7. The positioner according to claim 1, wherein a center point of the free end of the positioning hook and an axial center of the guide pin mounting part are located on the same straight line.
8. The locator of claim 1 or 7, wherein the corners of the locating hook are all right angles.
9. The positioner according to claim 1, wherein the sliding positioning member is a positioning sleeve, the positioning sleeve is sleeved on the guide pin mounting member, and the sliding positioning member and the angle positioning member are integrally arranged.
10. A positioning and puncturing device, comprising the positioner of any of claims 1-9, and further comprising a guide pin coaxially mounted on the guide pin mounting member.
CN201910640622.3A 2019-07-16 2019-07-16 Locator and location piercing depth Pending CN112237482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910640622.3A CN112237482A (en) 2019-07-16 2019-07-16 Locator and location piercing depth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910640622.3A CN112237482A (en) 2019-07-16 2019-07-16 Locator and location piercing depth

Publications (1)

Publication Number Publication Date
CN112237482A true CN112237482A (en) 2021-01-19

Family

ID=74166665

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910640622.3A Pending CN112237482A (en) 2019-07-16 2019-07-16 Locator and location piercing depth

Country Status (1)

Country Link
CN (1) CN112237482A (en)

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