CN117322944A - Respiratory tract biopsy ligature clamp and release device - Google Patents

Respiratory tract biopsy ligature clamp and release device Download PDF

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Publication number
CN117322944A
CN117322944A CN202311516002.1A CN202311516002A CN117322944A CN 117322944 A CN117322944 A CN 117322944A CN 202311516002 A CN202311516002 A CN 202311516002A CN 117322944 A CN117322944 A CN 117322944A
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CN
China
Prior art keywords
arm
clamping
release device
matched
clamping arm
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Pending
Application number
CN202311516002.1A
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Chinese (zh)
Inventor
朱宁
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Wenzhou Peoples Hospital
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Wenzhou Peoples Hospital
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Application filed by Wenzhou Peoples Hospital filed Critical Wenzhou Peoples Hospital
Priority to CN202311516002.1A priority Critical patent/CN117322944A/en
Publication of CN117322944A publication Critical patent/CN117322944A/en
Pending legal-status Critical Current

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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
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/0233—Pointed or sharp biopsy instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery

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

Abstract

The invention discloses a ligation clip for biopsy of respiratory tract and a release device, wherein the ligation clip comprises an elastic body which can be absorbed and degraded, one ends of two clamping arms of the elastic body form a deformation bending part, the other ends of the two clamping arms are provided with a buckling mechanism, a plurality of annular grooves are arranged on the two clamping arms at intervals along the length direction, after the annular grooves are clamped on human tissues, human tissue fluid enters the grooves to be retained and promote degradation, and concave-convex continuous surfaces which are clamped and matched with the human tissues are formed on the inner sides of the annular grooves and the inner sides of the two clamping arms; the chuck group of the release device comprises two chucks which are respectively matched with the two clamping arms to limit, and limiting grooves which are matched with the buckling mechanisms and limiting blocks which are matched with the annular grooves are arranged on the opposite surfaces of the two chucks. The annular groove is convenient for accelerating degradation; the friction force of the contact surface with human tissues is increased, and the clamping stability is improved; and the structure of the release device is matched and positioned, so that the release device can control the ligature clamp to be excited and clamped more stably.

Description

Respiratory tract biopsy ligature clamp and release device
Technical Field
The invention relates to the field of medical appliances, in particular to a respiratory tract biopsy ligation clip and a release device.
Background
For ligature clips, they have been widely used for the clipping hemostasis of blood vessels or tissues in the body; for the ligature clip applied to the gastrointestinal tract, after the ligature clip finishes the function of clamping hemostasis, the ligature clip can be discharged out of the body along the gastrointestinal tract, and for the respiratory tract, the ligature clip is a blind end and can not be discharged naturally, so that the prior art designs an absorbable ligature clip, the material of which is mostly one or more than two copolymers of polydioxanone, polyglycolic acid, polycarbonate, polylactic acid and the like, and a compact injection molding with smooth surface is prepared by an injection molding process; when the absorbable ligature clip is used for clamping blood vessels or tissues in a human body, the healing time of the blood vessels or tissues generally needs 2-4 weeks, so that the ideal degradation time of the absorbable ligature clip is 6-8 weeks; however, as the degradation modes of the degradable material are mostly hydrolysis, the contact area of the injection molding piece with smooth and compact surface and human tissue fluid is small, the complete degradation generally needs 24 weeks or longer, and the long-time foreign matter residue in the human body is caused; and the respiratory tract is harder and smoother than gastrointestinal tissues, and the ligature clamp also needs to be designed with more concave-convex structures for improving the clamping and positioning effects.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a ligation clip and a release device for respiratory tract biopsy, which are designed to provide a larger contact area with human tissue fluid and improve the degradation efficiency of the absorbable ligation clip by virtue of a multi-position annular groove of the ligation clip; the ligature clamp and the release device are matched and limited by virtue of a structure, so that a more stable positioning effect is improved.
The invention provides the following technical scheme: the utility model provides a respiratory tract biopsy ligature clamp and release, ligature clamp is the elastic body that can be absorbed and degraded, the elastic body includes first arm lock and second arm lock, the one end of first arm lock and second arm lock is connected and is formed deformation kink, the other end of first arm lock and second arm lock is set up to the buckle mechanism that can carry out mutual block, be provided with a plurality of ring channels along length direction interval on first arm lock and the second arm lock, the ring channel is after holding on human tissue for human tissue liquid to get into and keep in and promote the degradation, the inboard of ring channel and the inboard of first arm lock, second arm lock form the unsmooth continuous surface that carries out clamping fit with human tissue; the release device comprises a chuck group, a transmission assembly and a driving handle, wherein the driving handle is arranged in the shell, the front part of the shell is provided with an extension pipe, the transmission assembly is arranged in the extension pipe, the rear part of the transmission assembly is connected with the driving handle, the front part of the transmission assembly is connected with the chuck group, the chuck group extends out of the extension pipe and is used for clamping and excitation of the ligature clamp, and when the driving handle is operated, the transmission assembly and the chuck group are linked to drive the chuck group to excite and close; the clamping head group comprises a first clamping head and a second clamping head which are respectively matched and limited with the first clamping arm and the second clamping arm, the tail ends of the first clamping head and the second clamping head are hinged and driven by the transmission assembly to rotate, and limiting grooves matched and limited with the buckling mechanism and limiting blocks matched and limited with the annular grooves are arranged on opposite surfaces of the first clamping head and the second clamping head.
As an improvement, the annular grooves are uniformly arranged on the first clamping arm and the second clamping arm by 3-5.
As an improvement, annular grooves on the first clamping arm and the second clamping arm are arranged in a staggered way, so that the concave-convex continuous surfaces of the first clamping arm and the second clamping arm are used for clamping human tissues in a concave-convex staggered way.
As an improvement, the first clip arm and the second clip arm are integrally formed to form a deformed bent portion.
As an improvement, a transverse arc notch which is convenient for the deformation bending part to deform is arranged at the deformation bending part.
As an improvement, the first clamping arm and the second clamping arm form a transverse through hole between the annular grooves for human tissue fluid to enter and stay for promoting degradation.
As an improvement, the outer sides of the buckling mechanisms on the first clamping arm and the second clamping arm are provided with hemispherical protrusions, and the limiting grooves are hemispherical grooves matched with the hemispherical protrusions in shape.
As an improvement, the lower end surface of the limiting block is provided with an arc-shaped groove which is matched with the groove bottom of the annular groove in shape.
The invention has the beneficial effects that:
1. the ligature clamp uses the annular grooves at multiple positions as structural pits and weak points, so that the contact area between the ligature clamp and human tissue fluid can be increased, the human tissue fluid is beneficial to being reserved in the ligature clamp, the degradation of the annular grooves is quickened, the ligature clamp can be separated into multiple sections after the weak points are degraded, and the subsequent degradation efficiency is quickened.
2. The ligature clip forms concave-convex continuous surface with concave-convex interval with the inner side of the clip arm through the multi-position annular groove, when the respiratory tract tissue is sunk into the interval annular groove, the friction force is increased, and the clamping stability is improved.
3. The ligature clamp is structurally matched with the clamping head group of the release device through the annular grooves at multiple positions, so that the clamping head group can position the ligature clamp more stably, and a doctor can operate to accurately place the ligature clamp and clamp the required human body position.
4. The manufacturing cost of the ligature clamp is well controlled, and the ligature clamp is convenient to popularize and use due to the fact that the design of the annular groove is utilized to obtain various functional improvements.
Drawings
Fig. 1 is a schematic view showing a structure of a ligating clip according to the present invention in a forward direction.
Fig. 2 is a schematic view of a release device according to the present invention.
Fig. 3 is a schematic view of the structure of the chuck set of the release device of the present invention, partially in cross-section.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring now to fig. 1, 2 and 3, an embodiment of the respiratory biopsy ligation clip of the invention is shown. The ligature clip of the embodiment is an elastic body 1 which can be absorbed and degraded, the elastic body 1 comprises a first clip arm 11 and a second clip arm 12, one ends of the first clip arm 11 and the second clip arm 12 are connected to form a deformation bending part 13, the other ends of the first clip arm 11 and the second clip arm 12 are provided with a clamping mechanism 14 which can be mutually clamped, a plurality of annular grooves 2 are arranged on the first clip arm 11 and the second clip arm 12 at intervals along the length direction, after the annular grooves 2 are clamped on human tissues, human tissue fluid enters the grooves for retention and degradation promotion, and concave-convex continuous surfaces 3 which are matched with the human tissues are formed on the inner sides of the annular grooves 2 and the inner sides of the first clip arm 11 and the second clip arm 12; the release device comprises a chuck group 01, a transmission assembly 00 and a driving handle 02, wherein the driving handle 02 is arranged in a shell 03, an extension tube 04 is arranged at the front part of the shell 03, the transmission assembly 00 is arranged in the extension tube 04, the rear part of the transmission assembly 00 is connected with the driving handle 02, the front part of the transmission assembly 00 is connected with the chuck group 01, the chuck group 01 extends out of the extension tube 04 and is used for clamping and exciting a ligature clamp, and when the driving handle 02 is operated, the transmission assembly 00 and the chuck group 01 are linked to drive the chuck group 01 to excite and fold; the clamping head group 01 comprises a first clamping head O11 and a second clamping head 012 which are respectively matched and limited with a first clamping arm 11 and a second clamping arm 12, the tail ends of the first clamping head O11 and the second clamping head 012 are hinged and driven by a transmission assembly 00 to rotate, and limiting grooves 013 which are matched and limited with a buckling mechanism 14 and limiting blocks 014 which are matched and limited with the annular groove 2 are arranged on opposite surfaces of the first clamping head 011 and the second clamping head 012.
When the ligature clip is used, the ligature clip is arranged at the clamping head group 01 of the release device, a doctor operates the driving handle 02 of the release device, the clamping head group 02 stretches into a wound where the respiratory tract needs to be clamped for hemostasis, the doctor operates the driving handle 02, and the ligature clip is linked to the clamping head group 01 through a mature transmission assembly 00 structure in the prior art, so that the deformation bending part 13 is excited to fold, the first clamping arm 11 and the second clamping arm 12 are folded, the far-end clamping mechanism 14 is clamped, and the clamping and hemostasis of the first clamping arm 11 and the second clamping arm 12 on the wound is completed. The snap-in mechanism 14 can be made of a mature hook and groove structure in the prior art to complete snap-in positioning, and the whole elastic body 1 is made of a material which can be absorbed and degraded in the prior art, such as one or more copolymers of polydioxanone, polyglycolic acid, polycarbonate, polylactic acid and the like, and is a compact injection molded part with a smooth surface prepared by an injection molding process. As an improvement innovation of the invention, the first clamping arm 11 and the second clamping arm 12 which are formed by injection molding are subjected to injection molding by virtue of a mold to form a plurality of annular grooves 2 which are arranged at intervals along the length direction, so that the manufacturing difficulty is low; the annular groove 2 realizes multiple functions, the annular groove 2 at multiple positions on the first aspect is used as a structural recess and a weak point, so that the contact area between the annular groove 2 and human tissue fluid can be increased, the human tissue fluid is beneficial to being reserved in the annular groove 2, the degradation of the annular groove 2 is quickened, after the blood vessel or tissue is healed, the weak point is subsequently degraded step by step, the ligature clip can be separated into multiple sections, and the subsequent degradation efficiency is quickened; the concave-convex continuous surface 3 with concave-convex intervals is formed on the surface, which is contacted with the respiratory tract tissues, of the annular groove 2 at the multiple positions in the second aspect and the inner sides of the two clamping arms, so that the friction force is increased and the clamping stability is improved when the respiratory tract tissues sink into the spaced annular groove 2; the annular groove 2 with multiple positions in the third aspect can be used as a matching position of the clamping head group 01 of the release device, so that the clamping head group 01 can position the ligature clamp more stably, and a doctor can operate to accurately place the ligature clamp and clamp the required human body position. As a releasing device matched with the ligature clip, a clip group 01 of the ligature clip is provided with a first clip 011 and a second clip 012 corresponding to a first clip arm 11 and a second clip arm 12, and the first clip arm 11 and the second clip arm 12 are limited, in the prior art, the shapes of the first clip arm 11 and the second clip arm 12 are matched with the shapes of the first clip 011 and the second clip 012 to complete structural positioning, in the improvement of the ligature clip, the limiting grooves 013 on the first clip 011 and the second clip 012 are used for limiting the ligature clip at one place with the structure of an end part buckling mechanism 14, and a plurality of annular grooves 2 in the length direction of the clip arms are used for forming multi-point limiting, so that the ligature clip is well positioned after being placed at the clip group 01; after the clamping head group 01 is excited to finish closing the ligature clamp and closing the wound of the human tissue, the clamping head group 01 is opened and separated, and the limiting groove 013 and the limiting block 014 can finish separation with the ligature clamp due to the clamping of the clamping mechanism 14. The ligature clip achieves multiple functions through a simpler structural design, achieves better use effect under the condition of reducing manufacturing difficulty and manufacturing cost, and is beneficial to popularization and use.
As a modified embodiment, the annular grooves 2 are uniformly arranged on the first clamping arm 11 and the second clamping arm 12 by 3-5.
As shown in fig. 1, according to the specification and the size of the clamp arms of the ligature clamp, 3-5 annular grooves 2 are correspondingly arranged to achieve the effect of multi-position accelerated degradation and positioning, and the uniform arrangement ensures that the structural stress of the two clamp arms is uniform when the two clamp arms are excited to close and clamped on human tissues, and the local weak deformation is avoided to influence the clamping of wounds.
As a modified specific embodiment, the annular grooves 2 on the first clamping arm 11 and the second clamping arm 12 are staggered, so that the concave-convex continuous surface 3 of the first clamping arm 11 and the second clamping arm 12 are staggered to clamp human tissues.
According to the length difference between the first arm 11 and the second arm 12, as shown in fig. 1, it may be preferable that the annular grooves 2 on the first arm 11 and the second arm 12 form a number difference, as shown in fig. 1, the first arm 11 is longer, the second arm 12 is shorter, and the number of the annular grooves 2 on the first arm 11 and the second arm 12 is 3, and then the annular grooves 2 on the first arm 11 and the second arm 12 form a cross, i.e. the annular grooves 2 on one arm correspond to the inner side surface of the other arm, so as to form a concave-convex cross, thereby improving the hijacking effect of multiple positions on human tissues.
As a modified embodiment, the first clip arm 11 and the second clip arm 12 are integrally formed to form the deformed bent portion 13.
As shown in fig. 1, the integrally formed integral structure is convenient for direct injection molding, and ensures the consistency of structural strength and the success rate of operation while reducing the manufacturing cost.
As an improved specific embodiment, a transverse arc notch 4 which is convenient for deformation of the deformation bending part 13 is arranged at the deformation bending part 13.
As shown in fig. 1, the transverse arc notch 4 is convenient for bending and deforming at the deformation bending part 13, and on the other hand, human tissue fluid enters the transverse arc notch 4 from openings at two sides of the transverse arc notch and is reserved, so that degradation of the deformation bending part 13 is accelerated.
As a modified embodiment, the first clamping arm 11 and the second clamping arm 12 form a traversing through hole 5 between the annular grooves 2 for human tissue fluid to enter and stay for promoting degradation.
As shown in fig. 1, the transverse through holes 5 facilitate the human tissue fluid to enter and be reserved from the openings on two sides, and accelerate the degradation of the structural positions of the first clamping arm 11 and the second clamping arm 12 except the position of the annular groove 2; the transverse arc notch 4 and the transverse through hole 5 are arranged in the same direction, so that the manufacturing and processing of the mould during injection molding are facilitated.
As a modified specific embodiment, the outer sides of the buckling mechanisms 14 on the first clamping arm 11 and the second clamping arm 12 are provided with hemispherical bulges 6, and the limit groove 013 is a hemispherical groove matched with the shape of the hemispherical bulges 6.
As shown in fig. 1 and 3, through the hemispherical protrusion 6 and the hemispherical groove which are arranged in a matching manner, the limit of the position generated by the deformation of the ligature clamp can be relied on when the ligature clamp is clamped in the chuck group 01, a good limiting effect is achieved, and after the clamping of the clamping mechanism 14 of the ligature clamp is completed, the chuck group 01 can be separated to separate the hemispherical protrusion 6 from the hemispherical groove.
As a modified embodiment, the lower end face of the stopper 014 is provided with an arc-shaped groove 015 which is adapted to the groove bottom shape of the annular groove 2.
As shown in fig. 3, a plurality of limiting blocks 014 are accommodated in the annular groove 2 at corresponding positions, the limit of the position is generated by the deformation of the ligature clip, the groove bottom of the annular groove 2 is a cylinder, the limiting blocks 014 extend from the self position to the groove bottom to be contacted with the arc groove bottom at the side, the arc grooves 015 further arranged can be matched with the arc groove bottom of the annular groove 2 to achieve good limiting effect, and after the clamping of the clamping mechanism 14 of the ligature clip is completed, the clamping head group 01 is separated to enable the limiting blocks 014 and the annular groove 2, and the arc grooves 015 and the groove bottom to be separated.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (8)

1. A respiratory tract biopsy ligation clip and release device, characterized in that: the ligature clamp is an elastic body (1) capable of being absorbed and degraded, the elastic body (1) comprises a first clamp arm (11) and a second clamp arm (12), one ends of the first clamp arm (11) and the second clamp arm (12) are connected to form a deformation bending part (13), the other ends of the first clamp arm (11) and the second clamp arm (12) are provided with a clamping mechanism (14) capable of being clamped with each other, a plurality of annular grooves (2) are formed in the first clamp arm (11) and the second clamp arm (12) at intervals along the length direction, after the annular grooves (2) are clamped on human tissues, human tissue fluid enters the storage to promote degradation, and concave-convex continuous surfaces (3) which are clamped and matched with the human tissues are formed on the inner sides of the annular grooves (2) and the inner sides of the first clamp arm (11) and the second clamp arm (12);
the release device comprises a chuck group (01), a transmission assembly (00) and a driving handle (02), wherein the driving handle (02) is arranged in a shell (03), an extension pipe (04) is arranged at the front part of the shell (03), the transmission assembly (00) is arranged in the extension pipe (04), the rear part of the transmission assembly (00) is connected with the driving handle (02), the front part of the transmission assembly (00) is connected with the chuck group (01), the chuck group (01) extends out of the extension pipe (04) and is used for clamping and exciting a ligature clamp, and when the driving handle (02) is operated, the transmission assembly (00) and the chuck group (01) are linked to drive the chuck group (01) to be excited and folded; the chuck group (01) comprises a first chuck (011) and a second chuck (012) which are respectively matched and limited with a first clamping arm (11) and a second clamping arm (12), the tail ends of the first chuck (011) and the second chuck (012) are hinged and driven to rotate by a transmission assembly (00), and limiting grooves (013) which are matched and limited with a clamping mechanism (14) and limiting blocks (014) which are matched and limited with an annular groove (2) are arranged on opposite surfaces of the first chuck (011) and the second chuck (012).
2. The respiratory biopsy ligation clip and release device according to claim 1, wherein: the annular grooves (2) are uniformly arranged on the first clamping arm (11) and the second clamping arm (12) for 3-5 times.
3. The respiratory biopsy ligation clip and release device according to claim 1, wherein: annular grooves (2) on the first clamping arm (11) and the second clamping arm (12) are staggered, so that concave-convex continuous surfaces (3) of the first clamping arm (11) and the second clamping arm (12) are staggered to clamp human tissues.
4. The respiratory biopsy ligation clip and release device according to claim 1, wherein: the first clamping arm (11) and the second clamping arm (12) are integrally formed to form a deformation bending part (13).
5. The respiratory biopsy ligation clip and release device according to claim 4, wherein: the deformation bending part (13) is provided with a transverse arc notch (4) which is convenient for the deformation bending part (13) to deform.
6. The respiratory biopsy ligation clip and release device according to claim 1, wherein: the first clamping arm (11) and the second clamping arm (12) form a transverse through hole (5) between the annular grooves (2) for human tissue fluid to enter and remain for promoting degradation.
7. The respiratory biopsy ligation clip and release device according to any of claims 1 to 6, wherein: the outer sides of the buckling mechanisms (14) on the first clamping arm (11) and the second clamping arm (12) are provided with hemispherical protrusions (6), and the limiting grooves (013) are hemispherical grooves matched with the hemispherical protrusions (6) in shape.
8. The respiratory biopsy ligation clip and release device according to any of claims 1 to 6, wherein: the lower end face of the limiting block (014) is provided with an arc-shaped groove (015) which is matched with the groove bottom of the annular groove (2) in shape.
CN202311516002.1A 2023-11-14 2023-11-14 Respiratory tract biopsy ligature clamp and release device Pending CN117322944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311516002.1A CN117322944A (en) 2023-11-14 2023-11-14 Respiratory tract biopsy ligature clamp and release device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311516002.1A CN117322944A (en) 2023-11-14 2023-11-14 Respiratory tract biopsy ligature clamp and release device

Publications (1)

Publication Number Publication Date
CN117322944A true CN117322944A (en) 2024-01-02

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ID=89283197

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311516002.1A Pending CN117322944A (en) 2023-11-14 2023-11-14 Respiratory tract biopsy ligature clamp and release device

Country Status (1)

Country Link
CN (1) CN117322944A (en)

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