CN113116412B - Miniature operation tool head - Google Patents
Miniature operation tool head Download PDFInfo
- Publication number
- CN113116412B CN113116412B CN202010974289.2A CN202010974289A CN113116412B CN 113116412 B CN113116412 B CN 113116412B CN 202010974289 A CN202010974289 A CN 202010974289A CN 113116412 B CN113116412 B CN 113116412B
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- clamp
- tool head
- connecting rod
- proximal end
- support frame
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000001681 protective effect Effects 0.000 claims description 33
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 210000001124 body fluid Anatomy 0.000 abstract description 5
- 239000010839 body fluid Substances 0.000 abstract description 5
- 238000001356 surgical procedure Methods 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2948—Sealing means, e.g. for sealing the interior from fluid entry
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Ophthalmology & Optometry (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a miniature surgical tool head, which comprises a clamp part, a support frame, a driving part and a sealing part, wherein the support frame is connected with the clamp part to support the clamp part; the sealing part comprises a telescopic sealing piece, two ends of the telescopic sealing piece are respectively and fixedly connected with the proximal end of the miniature surgical tool head and the driving part, and the telescopic sealing piece stretches along with the movement of the driving part. The miniature surgical tool head disclosed by the invention is small in appearance, convenient to operate, free from worrying about penetration of body fluid into the surgical tool during surgery, and convenient to clean and sterilize.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a miniature surgical tool head.
Background
In minimally invasive medical procedures, surgical tools are typically used, which include various surgical tool heads, such as forceps, cutting tools, needle holders, etc., which are typically mounted at the distal end of the surgical tool, inserted through a small incision or natural orifice of a patient, either directly or through a cannula, and then the corresponding surgical procedure is completed. For example, in operations on the chest and abdominal regions, a doctor usually performs a clamping operation of focal tissue by using a micro-clamping operation tool when removing a focal. And then cleaning and sterilizing the surgical tool head after operation so as to achieve the aim of reusing the surgical tool head. However, the existing surgical tool head is generally difficult to wash clean in the later period, and the problems of incomplete disinfection, secondary pollution, infection and the like are easily caused.
Existing surgical tool heads are generally large in size and are commonly used in environments where the surgical space is large, such as the abdominal cavity, to facilitate the surgical procedure for the surgeon. However, for smaller-space tissue sites, such as the urinary system, the use of oversized surgical tool heads not only affects the visual aspects of the surgical field, increasing the surgical time and difficulty and complexity of the surgical procedure, but also tends to cause localized tissue pulling, making post-operative healing more difficult.
Disclosure of Invention
The invention mainly aims at providing a miniature surgical tool head which is used for solving the problems of inconvenient operation and the like caused by oversized prior surgical tool heads; the invention aims to solve the problem that the existing surgical tool head is difficult to clean and sterilize while considering the small size of the surgical tool head.
The invention provides a miniature surgical tool head, which comprises a clamp part, a support frame and a driving part; the clamp part is arranged on the supporting frame; the support frame is provided with an inner cavity; the driving part comprises a driving wire and a connecting rod unit which are positioned in the supporting frame; one end of the connecting rod unit is connected with the far end of the driving wire, and the other end of the connecting rod unit is connected with the clamp part, so that the clamp part is driven to move by the movement of the driving wire.
As a preferred embodiment of the present invention, the clamp portion includes at least two clamp members; the connecting rod unit comprises at least two connecting rods; the at least two connecting rods are hinged, and the distal end part of the driving wire is connected to the connecting part of the at least two connecting rods; the connecting rods are connected with the clamp members in a one-to-one correspondence manner; preferably, the clamp portion comprises two clamp members; the link unit includes two links.
As a preferred embodiment of the present invention, the microsurgical tool head further comprises a sealing portion; the seal includes a telescoping seal, at least a portion of the telescoping seal being connected to a distal portion of the drive, at least another portion of the telescoping seal being connected to a proximal portion of the microsurgical tool head to facilitate isolation of the drive from a surgical interface, and the telescoping seal telescoping with movement of the drive; preferably, at least a portion of the telescoping seal is fixedly attached to the distal portion of the driver and at least another portion of the telescoping seal is fixedly attached to the fixed portion of the proximal end of the microsurgical tool head; preferably, the sealing part is disposed inside the supporting frame.
As a preferred embodiment of the present invention, the clamping portion includes a first clamping member and a second clamping member oppositely disposed at both sides of the distal end of the supporting frame; the connecting rod unit comprises a first connecting rod and a second connecting rod, wherein the inner end parts of the first connecting rod and the second connecting rod are hinged through a connecting rod pin shaft; the outer end parts of the first connecting rod and the second connecting rod are respectively connected with the first clamp member and the second clamp member, so that the first clamp member and the second clamp member move close to each other or away from each other under the drive of the driving wire; preferably, the first clamp member and the second clamp member are fixedly connected or movably connected with the supporting frame; preferably, the first clamp member and the second clamp member are fixedly connected with the support frame, and the connection part of the first clamp member and/or the second clamp member with the support frame is flexible, or the first clamp member and the second clamp member are flexible; preferably, the first and second clamp members are integrally formed with the support frame; preferably, the first clamp member and the second clamp member are binding clips.
As a preferred embodiment of the present invention, the outer end portion of the first link is pivotally connected to the first clamp member through one clamp connecting shaft, and the outer end portion of the second link is pivotally connected to the second clamp member through the other clamp connecting shaft; preferably, a first vertical chute is arranged on a jaw wall of the first clamp member, which is close to the outer end of the first connecting rod, a second vertical chute is arranged on a jaw wall of the second clamp member, which is close to the outer end of the second connecting rod, and the first vertical chute and the second vertical chute are used for enabling the outer end parts of the first connecting rod and the second connecting rod to extend in, so that when the first connecting rod and the second connecting rod reciprocate along with the driving wire, the outer end parts of the first connecting rod and the second connecting rod move in the first vertical chute and the second vertical chute respectively.
As a preferred embodiment of the present invention, the driving part further includes a slider, a proximal end of the slider is fixedly connected with a distal end of the driving wire, and the distal end of the slider is fixedly connected with a hinge end of the link unit; preferably, the slider comprises a slider core and a slider sleeve; the sliding block sleeve is a hollow cylindrical sleeve, and an inner channel is arranged in the sliding block sleeve; the distal end part of the sliding block sleeve is fixedly sleeved on the periphery of the sliding block core, and the farthest end of the sliding block core extends out of the inner channel of the sliding block sleeve and is fixedly connected with the hinged end of the connecting rod unit; the driving wire extends into the slider sleeve from the proximal end of the slider sleeve and is connected with the proximal end of the slider core.
As a preferred embodiment of the present invention, the slider is an insulator.
As a preferred embodiment of the present invention, the first clamp member clamp wall extends inward to form a first extension, and the second clamp member clamp wall extends inward to form a second extension; the first extension part and the second extension part are respectively provided with a clamp connecting shaft perforation; the clamp connecting shaft is arranged in the clamp connecting shaft perforation on the corresponding side in a penetrating way; preferably, both sides of the jaw wall of the first jaw member extend inwards to form a first extension portion, and both sides of the jaw wall of the second jaw member extend inwards to form a second extension portion; the two first extending portions are parallel to each other, and the two second extending portions are parallel to each other.
As a preferred embodiment of the present invention, the microsurgical tool head further comprises a protective sheath; the protective sleeve comprises a thick section part and a thin section part, the thick section part and the thin section part are in butt joint up and down to form a ladder column shape with thick upper part and thin lower part, the proximal end of the support frame is tightly sleeved outside the thick section part of the protective sleeve, and the proximal end part of the telescopic sealing element is tightly sleeved outside the thin section part of the protective sleeve; a sliding channel is arranged in the protective sleeve, the sliding channel penetrates through the thick section part and the thin section part, and the proximal end of the driving part is arranged in the sliding channel in a sliding way; preferably, a fixing piece is arranged at the proximal end part of the protective sleeve, the fixing piece is fixedly connected with the protective sleeve, and a through hole for a driving wire to pass through is formed in the fixing piece; the proximal end of the support frame is provided with a mask, the distal end of the mask is fastened and sleeved on the periphery of the proximal end of the protective cover and the periphery of the fixing piece, and the mask is fixedly connected with the fixing piece.
As a preferred embodiment of the present invention, a first fastening sleeve is fastened to the distal outer periphery of the telescopic seal, and a second fastening sleeve is fastened to the proximal outer periphery of the telescopic seal.
The beneficial effects of the invention are as follows:
the invention provides a miniature surgical tool head which comprises a clamp part, a support frame and a driving part, wherein the driving part is connected with the clamp part to drive the clamp part to move, and the small-size clamp part is designed to meet the surgical requirement of a tissue part with smaller space, so that the problem of inconvenient operation caused by overlarge size of the conventional surgical tool head is solved. The telescopic sealing piece is arranged between the clamp part and the driving part, so that body fluid can be prevented from penetrating into the surgical tool during operation, and the surgical tool is only required to be cleaned when the surgical tool is cleaned and disinfected, and no slit cavity and the like which are difficult to clean are formed, so that the surgical tool is not required to be disassembled for cleaning. The miniature surgical tool head disclosed by the invention is small in appearance, convenient to operate, free from worrying about penetration of body fluid into the surgical tool during surgery, clean and sanitary, and convenient to clean and disinfect.
Drawings
FIG. 1 is a perspective view of a surgical tool head provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a surgical tool head according to an embodiment of the present invention;
FIG. 3 is a perspective view of a portion of the structure of a surgical tool head according to an embodiment of the present invention;
FIG. 4 is a front view of a connecting rod according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a slider in a surgical tool head according to an embodiment of the present invention;
fig. 6 is a perspective view of a clamp portion and a support frame according to an embodiment of the present invention.
Detailed Description
The following examples are illustrative of the present invention and are not intended to limit the scope of the invention.
In describing embodiments of the present invention, it should be noted that the terms "left" and "right" are based on the orientation or positional relationship described in the drawings, and are for convenience of describing the present invention. The terms "first," "second," and the like, are used for descriptive purposes and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
It should be noted that, in the process of using the miniature surgical tool head, one end close to an operator is a proximal end or a rear end, and one end close to a surgical patient is a distal end or a front end.
Embodiments of the present invention provide a miniature surgical tool head, the structure of which is described in detail below.
Referring to fig. 1 to 4, the micro-surgical tool head includes a jaw 1 (which includes two jaw members in this embodiment, which are jaw heads in this embodiment), a support frame 2, a driving portion connected with the jaw 1 to drive the jaw members of the jaw 1 to move, and a sealing portion including a link unit 4 and a driving wire 3, the jaw 1 being fixedly connected with a distal end portion of the driving wire 3 through the link unit 4. Wherein the outer circumference of the driving wire 3 is wrapped with an insulating tube, the outer diameter of the clamp portion 1 can be made small, and the preferred size is within 5 mm. The driving wire 3 drives the connecting rod unit 4 to move, so that the opening and closing of the clamp members are realized. The driving part has a simple structure, and does not need to adopt a complex connecting rod or sliding groove driving structure, thereby realizing the miniaturization of the surgical tool head.
In the above embodiment, the sealing part includes the telescopic sealing member 8, at least one part of the telescopic sealing member 8 is connected to the distal end portion of the driving part, at least another part of the telescopic sealing member 8 is connected to the proximal end portion of the miniature surgical tool head, so that the driving part is isolated from the surgical interface, and the telescopic sealing member 8 stretches and contracts with the movement of the driving part, so that the driving wire 3 is isolated from the surgical interface (the surgical instrument includes an external operator operation end and an internal instrument movement end, and two interfaces of an operator/surgical instrument and a surgical instrument/human tissue are formed between an operator, a surgical instrument and a targeted tissue organ in the surgical operation, and in the embodiment, the surgical interface refers to a surgical instrument/human tissue interface, namely an interface of action of the surgical instrument on human tissue). The driving wire 3 drives the connecting rod unit 4 to open and close, so that the clamp part 1 is driven to open and close, and the telescopic sealing piece 8 stretches or contracts along with the reciprocating motion of the driving wire 3. It should be appreciated that at least a portion of the telescoping seal 8 is telescoping in the axial direction or that the telescoping seal 8 as a whole is telescoping. In particular, the retractable seal 8 may be made of an elastic material, such as rubber or thermoplastic elastomer or other elastic metallic material, etc. By providing the telescopic sealing member 8, the movement of the clamp portion 1 is realized, and body fluid and the like can be prevented from entering the driving portion, thereby facilitating the cleaning and the sterilization of the surgical tool head.
In a preferred embodiment, the clamp portion 1 comprises a first clamp member 11, a second clamp member 12. The first and second jaw members 11, 12 are oppositely disposed on opposite sides of the distal end of the support frame 2, the support frame 2 having an interior cavity, the drive portion and the telescoping seal 8 being disposed within the interior cavity of the support frame 2.
The link unit 4 includes a first link 41 and a second link 42, inner end portions of the first link 41 and the second link 42 are hinged by a link pin 5, and outer end portions of the first link 41 and the second link 42 are respectively connected with the first clamp member 11 and the second clamp member 12, which may be directly connected or indirectly connected, so that the first clamp member 11 and the second clamp member 12 are moved toward or away from each other by the driving wire 3.
In the above embodiment, as shown in fig. 6, the first clamp member 11 and the second clamp member 12 are fixedly connected with the support frame 2. Preferably, at least one of the joints of the first and second jaw members 11, 12 with the support frame 2 is flexible, or the first and second jaw members 11, 12 themselves are flexible. More preferably, the first and second clamping members 11, 12 are integrally formed with the support frame 2, thereby making the machining process simpler. It should be understood that the first clamp member 11 and the second clamp member 12 may also be movably connected to two sides of the distal end of the supporting frame 2, respectively, and the first clamp member 11 and the second clamp member 12 are opposite, and the first clamp member 11 and the second clamp member 12 are close to or far away from each other under the driving of the driving wire 3, so as to realize opening and closing.
In the above preferred embodiment, the support frame 2 includes a proximal annular base and axial extensions with diameters opposite to each other on both sides of the annular base, the axial extensions on both sides extend from the annular base axially toward the distal end, and the most distal portions of the axial extensions form the first clamping member 11 and the second clamping member 12, and it should be noted that the axial extensions on both sides are in a hollowed-out structure between the circumferential directions, so as to facilitate cleaning of the surface of the surgical tool and avoid forming a gap that is difficult to clean. It should be appreciated that the support frame 2 may also be in a cylindrical configuration with the first and second clamp members 11, 12 disposed diametrically opposite the distal end of the support frame 2.
In the above-described embodiment, referring to fig. 4, the inner end portions of the first link 41 and the second link 42 are hinged by the link pin 5; the outer end portion of the first link 41 is pivotally connected to the first clamp member 11 via one clamp connecting shaft 6, and the outer end portion of the second link 42 is pivotally connected to the second clamp member 12 via the other clamp connecting shaft 6. Specifically, the link pin 5 is fixedly connected with the distal end of the driving part, the inner end portions of the first link 41 and the second link 42 are hinged through the link pin 5, the two clamp connecting shafts 6 are fixedly connected with the first clamp member 11 and the second clamp member 12 respectively, and the outer end portions of the first link 41 and the second link 42 are hinged with the two clamp connecting shafts 6 respectively. As the drive wire 3 is pulled proximally, the outer end portions of the first and second links 41, 42 approach each other, thereby bringing the first and second jaw members 11, 12 toward each other. When the drive wire 3 is pushed distally, the outer end portions of the first and second links 41 and 42 move away from each other, thereby bringing the first and second jaw members 11 and 12 away from each other.
In the above preferred embodiment, referring to fig. 5, the driving part further includes a slider 7, the slider 7 is an insulator, and includes a slider core 71 and a slider sleeve 72, the slider sleeve 72 is a hollow cylindrical sleeve, an inner channel is provided in the interior of the hollow cylindrical sleeve, a distal end portion of the slider sleeve 72 is fixedly sleeved on the periphery of the slider core 71, and the inner channel of the slider core 71, the distal end of which extends out of the slider sleeve 72, is fixedly connected with the hinge end of the connecting rod 4, i.e. the distal end of the slider core 71 is fixedly connected with the connecting rod pin 5; the distal end of the drive wire 3 extends from the proximal end portion of the slider sleeve 72 and is securely connected to the proximal end of the slider core 71, for example, by welding or snap-fastening.
The conventional pulley steel wire or the like cannot stretch the sealing member, but because the telescopic sealing member 8 has retractility, the driving wire 3 can stretch the telescopic sealing member 8, so that the telescopic sealing member 8 stretches or contracts along with the reciprocating motion of the sliding block 7. The driving wire 3 drives the sliding block 7 to reciprocate, so that the connecting rod unit 4 is driven to move, and the connecting rod unit 4 moves to open and close the clamp members.
In the above embodiment, the two sides of the jaw wall of the first jaw member 11 are extended inward to form the first extended portion (one first extended portion is extended on each side), the two sides of the jaw wall of the second jaw member 12 are extended inward to form the second extended portion (one second extended portion is extended on each side), one jaw connecting shaft perforation is provided on each of the two first extended portions of the first jaw member 11, and the two jaw connecting shaft perforations are respectively located on the two sides of the first jaw member 11 to form the pair of jaw connecting shaft perforations. Two second extension portions of the second clamp member 12 are provided with one clamp connecting shaft perforation, the two clamp connecting shaft perforations are respectively located at two sides of the second clamp member 12 to form a clamp connecting shaft perforation pair, and the two clamp connecting shafts 6 are respectively arranged in the clamp connecting shaft perforation pairs of the first clamp member 11 and the second clamp member 12.
In a preferred embodiment, further, a first vertical sliding groove extending along the axial direction is arranged on the jaw wall of the first jaw member 11 near the outer end of the first connecting rod 41, a second vertical sliding groove extending along the axial direction is arranged on the jaw wall of the second jaw member 12 near the outer end of the second connecting rod 42, the first vertical sliding groove and the second vertical sliding groove are used for enabling the outer end parts of the first connecting rod 41 and the second connecting rod 42 to extend in, and when the first connecting rod 41 and the second connecting rod 42 reciprocate along with the driving wire 3, the outer end parts of the first connecting rod 41 and the second connecting rod 42 move in the first vertical sliding groove and the second vertical sliding groove respectively. The provision of the vertical chute can further reduce the lateral dimension of the clamp portion 1.
Preferably, the proximal end of the support frame 2 is sleeved with a protective sleeve 9, the protective sleeve 9 comprises a thick section part at the proximal end and a thin section part at the distal end, and the thick section part and the thin section part are in butt joint up and down to form a stepped column shape with thick upper part and thin lower part.
In a preferred embodiment, the proximal end of the support frame 2 is tightly sleeved outside the thick section of the protective sheath 9, and the proximal end portion of the telescoping seal 8 is tightly sleeved outside the thin section of the protective sheath 9. The protective sleeve 9 is provided with a sliding channel which penetrates through the thick section part and the thin section part, and the proximal end of the sliding block 7 is arranged in the sliding channel in a sliding way. The protective sleeve 9 is preferably made of ceramic material, which can realize insulation and reduce friction, so that the sliding body can slide in the sliding channel. In order to fixedly connect the protective sheath 9 to the surgical arm or the drive rod, etc., a fixing member 90 is provided at the proximal end portion of the protective sheath 9, and the fixing member 90 is fixedly connected to the proximal end portion of the protective sheath 9. Considering the processing technology problem, preferably, the fixing member 90 is fixedly connected with the protective sleeve 9 through a transition member, the fixing member 90 is provided with a through hole for the driving wire to pass through, and the fixing member 90 is provided for realizing the sealing of the proximal end of the driving part, and simultaneously preventing tissue fluid from penetrating into the driving part, so that cleaning is difficult. It should be understood that the securing member 90 may also be integrally formed with the protective sheath 9.
Further, the proximal end of the support frame 2 is provided with a mask 91, and the distal end fastening sleeve of the mask 91 is provided on the outer circumference of the proximal end portion of the protective cover 9 and the outer circumference of the fixing member 90, and the inner wall of the mask 91 is fixedly connected with the outer wall of the fixing member 90, thereby preventing body fluid from entering the inside of the surgical tool.
In the above embodiment, the telescoping seal 8 is wrapped around the outer circumference of the distal end of the slider sleeve 72 and extends proximally around the outer circumference of the thin section of the protective sheath 9. It should be noted that, the telescopic sealing member 8 extends or contracts along with the reciprocating motion of the sliding block 7, and the arrangement of the telescopic sealing member 8 can enable the inside of the surgical tool head to form a sealing structure and prevent tissue fluid from penetrating into the surgical tool, so that the surgical tool head only needs to be cleaned and disinfected after operation, and the surgical tool does not need to be disassembled for cleaning.
Further, in order to prevent the stretchable seal member 8 from being separated from the slider 7 and the protective sheath 9 during the stretching movement, the first fastening sleeve 810 is fastened to the distal end outer circumference of the stretchable seal member 8, and the second fastening sleeve 820 is fastened to the proximal end outer circumference of the stretchable seal member 8.
In the preferred embodiment, the protective sleeve 9, the telescopic sealing member 8 and the sliding block 7 are all made of insulating materials, so that insulation can be formed between the surgical tool head and the surgical tool structure such as a driving rod or the arm body of the surgical robot, and the periphery of the driving wire 3 is wrapped with an insulating tube, so that current cannot be conducted to the surgical arm and the like in the surgical process even if the surgical tool head is contacted with electrified equipment, and a patient and a user cannot be burnt, so that potential safety hazards are avoided, equipment damage is avoided, and the like.
In the above embodiment, the proximal end of the telescopic seal 8 is tightly wrapped around the distal end of the protective sheath 9, and the protective sheath 9 is stationary relative to the support frame 2 during actuation of the jaw member by the actuation portion, and the proximal end of the telescopic seal 8 is also relatively stationary. In this application, it may also be provided that the proximal end of the telescopic sealing member 8 is tightly wrapped around the proximal end of the support frame 2, etc., so that the proximal end of the telescopic sealing member 8 is immobilized with respect to the support frame 2, irrespective of whether the distal end thereof follows the movement of the driving portion.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (19)
1. The miniature surgical tool head is characterized by comprising a clamp part (1), a support frame (2), a driving part and a sealing part; the clamp part (1) is arranged on the support frame (2); the support frame (2) is provided with an inner cavity; the driving part is arranged in the inner cavity of the supporting frame (2) and comprises a driving wire (3) and a connecting rod unit (4); one end of the connecting rod unit (4) is connected with the far end of the driving wire (3), and the other end of the connecting rod unit is connected with the clamp part (1) so as to drive the clamp part (1) to move by the movement of the driving wire (3); the seal portion comprises a telescopic seal (8), the telescopic seal (8) is arranged in the inner cavity of the support frame (2), the distal end of the telescopic seal (8) is connected to the distal end portion of the driving portion, the proximal end of the telescopic seal (8) is connected to the proximal end portion of the miniature surgical tool head so as to promote the isolation of the driving portion from the surgical interface, and the telescopic seal (8) stretches and contracts along with the movement of the driving portion.
2. The microsurgical tool head according to claim 1, characterized in that the clamping section (1) comprises at least two clamping members; the connecting rod unit (4) comprises at least two connecting rods; the at least two connecting rods are hinged, and the distal end part of the driving wire (3) is connected to the joint of the at least two connecting rods;
the connecting rods are connected with the clamp members in a one-to-one correspondence.
3. The microsurgical tool head according to claim 2, characterized in that the clamping section (1) comprises two clamping members; the link unit (4) comprises two links.
4. A microsurgical tool head as claimed in any of claims 1-3, wherein the distal end of the telescopic seal (8) is fixedly connected to the distal portion of the driver, and the proximal end of the telescopic seal (8) is fixedly connected to the fixed portion of the proximal end of the microsurgical tool head.
5. A microsurgical tool head as claimed in claim 3, wherein,
the clamp part (1) comprises a first clamp member (11) and a second clamp member (12) which are oppositely arranged at two sides of the distal end of the supporting frame (2);
the connecting rod unit (4) comprises a first connecting rod (41) and a second connecting rod (42) of which the inner end parts are hinged through a connecting rod pin shaft (5);
the outer end parts of the first connecting rod (41) and the second connecting rod (42) are respectively connected with the first clamp member (11) and the second clamp member (12), so that the first clamp member (11) and the second clamp member (12) move close to each other or away from each other under the drive of the driving wire (3).
6. A microsurgical tool head in accordance with claim 5, characterized in that the first clamping member (11) and the second clamping member (12) are fixedly or movably connected to the support frame (2);
7. a microsurgical tool head as in claim 5, wherein the first and second jaw members (11, 12) are fixedly connected to the support frame (2), and the connection of the first and/or second jaw members (11, 12) to the support frame (2) is flexible, or the first and second jaw members (11, 12) themselves are flexible.
8.A microsurgical tool head as in claim 7, wherein the first clamp member (11)And the second clamp member (12) is integrally formed with the support frame (2).
9. A microsurgical tool head in accordance with claim 5, characterized in that the first clamping member (11) and the second clamping member (12) are both clamp heads.
10. A microsurgical tool head in accordance with claim 5,
the outer end part of the first connecting rod (41) is pivoted to the first clamp member (11) through one clamp connecting shaft (6), and the outer end part of the second connecting rod (42) is pivoted to the second clamp member (12) through the other clamp connecting shaft (6).
11. The microsurgical tool head according to claim 5, wherein the first jaw member (11) is provided with a first vertical chute on the jaw wall near the outer end of the first link (41), the second jaw member (12) is provided with a second vertical chute on the jaw wall near the outer end of the second link (42), the first and second vertical chutes being adapted for the outer end portions of the first and second links (41, 42) to extend in such a way that when the first and second links (41, 42) reciprocate with the drive wire (3), the outer end portions of the first and second links (41, 42) move within the first and second vertical chutes, respectively.
12. A microsurgical tool head as claimed in any one of claims 2, 3, 5-11, wherein,
the driving part further comprises a sliding block (7), the proximal end of the sliding block (7) is fixedly connected with the distal end of the driving wire (3), and the distal end of the sliding block (7) is fixedly connected with the hinged end of the connecting rod unit (4).
13. The microsurgical tool head of claim 12, wherein the slider (7) comprises a slider core (71) and a slider sleeve (72); the sliding block sleeve (72) is a hollow cylindrical sleeve, and an inner channel is arranged in the sliding block sleeve; the distal end part of the sliding block sleeve (72) is fixedly sleeved on the periphery of the sliding block core (71), and the most distal end of the sliding block core (71) extends out of the inner channel of the sliding block sleeve (72) and is fixedly connected with the hinged end of the connecting rod unit (4); the drive wire (3) extends into from the proximal end of the slider sleeve (72) and is connected to the proximal end of the slider core (71).
14. A microsurgical tool head in accordance with claim 12, characterized in that the slider (7) is an insulator.
15. A microsurgical tool head in accordance with claim 10,
the first clamp member (11) has a clamp wall extending inwards to form a first extension part, and the second clamp member (12) has a clamp wall extending inwards to form a second extension part; the first extension part and the second extension part are respectively provided with a clamp connecting shaft perforation; the clamp connecting shaft (6) is arranged in the clamp connecting shaft perforation on the corresponding side in a penetrating way.
16. A microsurgical tool head as claimed in claim 15, wherein the first jaw member (11) has a jaw wall extending inwardly on both sides to form a first extension and the second jaw member (12) has a jaw wall extending inwardly on both sides to form a second extension; the two first extending portions are parallel to each other, and the two second extending portions are parallel to each other.
17.A microsurgical tool head as in claim 1, further comprising a protective sheath (9);
the protective sleeve (9) comprises a thick section part and a thin section part, the thick section part and the thin section part are in butt joint up and down to form a ladder column shape with thick upper part and thin lower part, the proximal end of the support frame (2) is tightly sleeved outside the thick section part of the protective sleeve (9), and the proximal end part of the telescopic sealing piece (8) is tightly sleeved outside the thin section part of the protective sleeve (9);
a sliding channel is arranged in the protective sleeve (9), the sliding channel penetrates through the thick section part and the thin section part, and the proximal end of the driving part is arranged in the sliding channel in a sliding mode.
18. The microsurgical tool head according to claim 17, wherein the proximal end of the protective sheath (9) is provided with a securing member (90), the securing member (90) being fixedly connected to the protective sheath (9), the securing member (90) being provided with a through hole for the passage of a driving wire;
the proximal end of the support frame (2) is provided with a mask (91), the distal end of the mask (91) is fastened and sleeved on the periphery of the proximal end of the protective cover (9) and the periphery of the fixing piece (90), and the mask (91) is fixedly connected with the fixing piece (90).
19. The microsurgical tool head of claim 1, wherein a first fastening sleeve (810) is secured to the distal outer end Zhou Jin of the telescoping seal (8), and a second fastening sleeve (820) is secured to the proximal outer periphery of the telescoping seal (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911392141 | 2019-12-30 | ||
| CN2019113921411 | 2019-12-30 |
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| CN202010974289.2A Active CN113116412B (en) | 2019-12-30 | 2020-09-16 | Miniature operation tool head |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114391924B (en) * | 2022-01-18 | 2024-05-14 | 湖州市妇幼保健院 | Clamping device for assisting laparoscopic vaginal stump suturing |
| CN116098676A (en) * | 2023-01-31 | 2023-05-12 | 中国人民解放军总医院第八医学中心 | Medical drill bit |
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| CN113116412A (en) | 2021-07-16 |
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