WO2018077226A1 - 用于穿刺器的密封圈保护片、端密封组件及穿刺器 - Google Patents

用于穿刺器的密封圈保护片、端密封组件及穿刺器 Download PDF

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Publication number
WO2018077226A1
WO2018077226A1 PCT/CN2017/107958 CN2017107958W WO2018077226A1 WO 2018077226 A1 WO2018077226 A1 WO 2018077226A1 CN 2017107958 W CN2017107958 W CN 2017107958W WO 2018077226 A1 WO2018077226 A1 WO 2018077226A1
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WO
WIPO (PCT)
Prior art keywords
protection sheet
sheet
sealing ring
curved surface
positioning
Prior art date
Application number
PCT/CN2017/107958
Other languages
English (en)
French (fr)
Inventor
周星
Original Assignee
周星
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 周星 filed Critical 周星
Priority to EP17865230.1A priority Critical patent/EP3643263A4/en
Priority to US16/609,985 priority patent/US11382660B2/en
Publication of WO2018077226A1 publication Critical patent/WO2018077226A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • 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
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • 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
    • A61B2017/00238—Type of minimally invasive operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B2017/3419—Sealing means between cannula and body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A61B2017/3464—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance

Definitions

  • the present invention relates to a surgical instrument, and more particularly to a seal protector, an end seal assembly and a trocar of a trocar used in laparoscopic surgery.
  • Trocar disposable trocars
  • the trocar In the process of frequent surgical instruments entering and exiting, ensuring the dynamic sealing of the trocar is the key to ensuring smooth operation.
  • surgical instruments of various shapes are used during the operation. Therefore, the trocar also needs to be able to adapt to various surgical instruments of different shapes, facilitating the entry and exit of the instruments, and the process of entering and exiting the instruments needs to be kept low. Resistance, thus ensuring the smoothness of the movement of the instrument.
  • the universal radial sealing ring is a funnel-type sealing ring.
  • a sealing ring is usually installed on the upper part of the funnel-shaped sealing ring.
  • the piece causes the instrument to move inwardly along the surface of the protective sheet through the radial sealing ring as it enters and exits the piercer.
  • the design of the sealing ring protection piece allows the thickness of the sealing ring to be as low as possible while maintaining the sealing system, thereby reducing the resistance of the sealing ring to the ingress and egress of the instrument, but in turn, the sealing ring protection piece itself will increase the access of the instrument. Resistance to exercise.
  • the prior art protective sheets are embedded in the convex steps or grooves and form larger when the surgical instruments are inserted or removed. Resistance. Therefore, it is necessary to improve the existing sealing ring protection sheet, and to provide sufficient protection ability for the sealing ring, and further reduce the movement resistance of the protective sheet to the instrument in and out.
  • the sealing ring protection sheet for a trocar of the present invention is characterized in that: the sealing ring protection sheet 2 for the puncturing device comprises a positioning skirt 201, a supporting piece 202 and a curved surface protection sheet 203;
  • the positioning skirt 201 is a sheet-like structure, and is provided with a positioning hole 201-1; the inner side of the positioning skirt 201 is connected with the upper end of the supporting piece 202;
  • the support piece 202 is a sheet-like structure, the upper end of which is connected to the inner side of the positioning skirt 201; the lower end thereof is connected to the upper end of the curved surface protection sheet 203;
  • the curved surface protection sheet 203 is a curved surface asymmetric structure, including a right oblique side 203-1, a bottom side 203-2, a left oblique side 203-3, an upper side 203-4, and a transitional arc 203-23
  • the right oblique side 203-1 and the left oblique side 203-3 are on both sides of the bottom edge 203-2; the curved surface protection sheet 203 is suspended on the support piece 202, and the upper side 203 of the curved surface protection sheet 203 -4 is connected to the lower end of the support piece 202.
  • the angle between the curved surface protection sheet 203 and the support sheet 202 is ⁇ 90°, usually between 90° and 170°.
  • the angle ⁇ between the right oblique side 203-1 and the bottom side 203-2 is between 70° and 90°.
  • the right oblique side 203-1 and the left oblique side 203-3 are asymmetrically distributed along a center line of the positioning skirt 201 and an extension line 203-0 thereof.
  • the farthest distance D1 from the right oblique side 203-1 to the center line of the positioning skirt 201 and the extension line 203-0 thereof is smaller than the center line of the left oblique side 203-3 to the positioning skirt 201 and Its extension line 203-0 is the farthest distance D2.
  • the curved surface protection sheet 203 of the sealing ring protection sheet 2 for the puncturing device is provided with a deformable region R region with weak deformation strength and a protective region Q region with strong deformation strength, and the deformation resistance of the R region of the easily deformable region Less than the deformation resistance of the Q zone of the protection zone.
  • the deformable region R region is disposed on the right side of the curved surface protection sheet 203 of the seal ring protection sheet 2 for the piercer, and the protection region Q region is disposed on the curved surface protection sheet 203 of the seal ring protection sheet 2. On the left side.
  • the thickness of the R zone of the deformable zone is smaller than the thickness of the Q zone of the protection zone. Since the thickness of the R zone of the deformable zone is smaller than the thickness of the Q zone of the protection zone, when subjected to an external force, the R zone of the easily deformable zone will rapidly deform before the Q zone of the protection zone, and will be retreated backward. Thereby, the movement resistance of the seal protection sheet 2 for the trocar to the instrument is reduced.
  • the funnel-type sealing ring 5 can still be better protected by the protection zone Q zone to prevent the funnel-shaped sealing ring 5 from being punctured and leaking.
  • the curved surface protection sheet 203 is a curved surface asymmetric structure, the center line of the positioning skirt 201 and its extension line 203-0 are divided, and the curved surface protection sheet 203 is at the center line. And the two sides of the extension line 203-0 respectively form a deformable zone R zone and a protection zone Q zone.
  • the right side portion of the curved surface protection sheet 203 is the easy deformation zone R.
  • the left side of the curved surface protection sheet 203 is the protection area Q area.
  • the asymmetric sheet-like structure of the curved surface protection sheet 203 can not only open the surgical instrument channel 9 when the surgical instrument passes, but also reduce the resistance when the surgical instrument passes, and can ensure the funnel type.
  • the good protection of the sealing ring 5 ensures that the funnel-shaped sealing ring 5 is not easily pierced by the surgical instrument during the operation, and the protection of the sealing ring protection piece 2 for the puncturing device is well balanced. Sports resistance requirements.
  • seal protecting sheets 2 for the puncturing device are alternately superposed and distributed to form a funnel-shaped protective sheet assembly 21.
  • the eight seal protection sheets 2 for the puncturing device are alternately superposed and distributed along 45°, which can constitute a funnel type protection.
  • the protective sheet assembly 21. 8 pieces of the sealing ring protection sheet 2 for the puncturing device are alternately superposed and distributed along 45°, and a well-distributed symmetrical distribution funnel can be formed well on the upper portion of the funnel-shaped sealing ring 5.
  • Type structure This structure ensures that when the surgical instrument passes, the funnel-type protective sheet assembly 21 formed by alternately stacking the eight sealing ring protective sheets 2 reduces the area of contact between the surgical instrument and the sealing ring 5 as much as possible, thereby ensuring At the same time of sealing, the frictional resistance of the movement of the instrument is also reduced as much as possible.
  • the funnel-type protective sheet assembly 21 formed by the eight sheets of the seal ring protection sheet 2 is an optimized optimum structure.
  • the curvature of the left side portion of the curved surface protection sheet 203 is different from the curvature of the right side portion.
  • the curvature of the left side of the curved surface protection sheet 203 is smaller than the curvature of the right side of the curved surface protection sheet 203.
  • the curvature radius of the right side of the curved surface protection sheet 203 is smaller than the curvature radius of the left side of the curved surface protection sheet 203, that is, the curvature of the right side of the curved surface protection sheet 203 is larger than the curvature of the left side of the curved surface protection sheet 203 when surgery
  • the instrument in particular a special-shaped surgical instrument, such as a 7-negative forceps or a surgical instrument with a convex or grooved passage, passes through the curved protective sheet 203 when the curved surgical radius of the right side is small, and the shaped surgical instrument is pulled out.
  • the right R region has small deformation resistance, small radius of curvature and large curvature, and the R region can be easily flipped, which facilitates the extraction of the special-shaped instrument and reduces the movement resistance when the special-shaped instrument is pulled out, so that the puncture is used for the puncture.
  • the sealing ring protection sheet 2 of the device is not easily caught in a profiled portion, such as a convex step or a groove, which greatly improves the smoothness of insertion or removal of various shaped instruments.
  • the upper edge 203-4 of the curved surface protection sheet 203 includes a right upper edge 203-41 and a left upper edge 203-42; the right upper edge 203-41 is lower than the left upper edge 203-42. Therefore, when the surgical instrument passes, the left upper side 203-42 is not deformed by force until the surgical instrument reaches the upper right side 203-41.
  • the upper right side 203-41 is reached, the R area on the right side of the curved surface protection sheet 203 is rapidly deformed, the Q area on the left side of the curved surface protection sheet 203 is slightly deformed, and the surgical instrument channel 9 is rapidly expanded.
  • the surgical instrument enters the funnel-type sealing ring 5 after passing through the sealing ring protection sheet 2 for the trocar.
  • the upper right side 203-41 is lower than the left upper side 203-42, which ensures that the R area on the right side of the curved surface protection sheet 203 precedes the Q area on the left side of the curved surface protection sheet 203 when the surgical instrument passes. Deformation occurs, thereby reducing the resistance to movement of the surgical instrument as it passes.
  • the positioning skirt 201 is perpendicular to the support sheet 202.
  • the end seal assembly of the present invention comprises the seal protector 2 for the piercer.
  • the end seal assembly 20 includes an upper pressing plate 1, a protective sheet 2, a corrugated sealing ring 3, a positioning seat 4, a funnel-shaped sealing ring 5 and a lower pressing plate 6; 8 of the protective sheets 2 are installed through the positioning holes 201-1
  • the two adjacent protective sheets 2 are always presented with the curved surface protection sheet 203 of the right side of the curved protective sheet 203 pressing the adjacent protective sheet 2
  • the right side 203-1 of the curved surface protection sheet 203 is always in the upper layer
  • the left side 203-3 of the curved surface protection sheet 203 is always in the lower layer, so that the alternately superposed distribution constitutes an annular funnel type.
  • the positioning block 4 is provided with an upper positioning hole 4-1 and a lower positioning hole 4-2.
  • the positioning post 1-1 of the upper pressing plate 1 is embedded in the upper positioning hole 4-1 of the positioning seat 4.
  • the protective sheet 2 and the corrugated sealing ring 3 are sequentially installed between the upper pressing plate 1 and the positioning seat 4;
  • the bucket seal 5 is provided with a positioning hole 5-1
  • the lower pressing plate 6 is provided with a positioning post 6-1
  • the positioning post 6-1 of the lower pressing plate 6 passes through the positioning hole of the funnel-shaped sealing ring 5.
  • 5-1 is embedded in the lower positioning hole 4-2 of the positioning base 4, and the funnel-shaped sealing ring 5 is installed between the lower pressing plate 6 and the positioning seat 4.
  • the end seal assembly 20 adopts the annular funnel-type protective sheet assembly 21, which ensures that the funnel-shaped sealing ring 5 is not punctured by the surgical instrument during the operation, and the resistance during exercise is reduced, which is good.
  • the ground guarantees the smoothness of the movement of the surgical instruments.
  • the trocar of the present invention comprises the seal protection sheet 2 for the trocar.
  • the piercer 29 includes the end seal assembly 20.
  • the seal protection sheet for a trocar of the present invention comprises a positioning skirt 201, a support sheet 202 and a curved surface protection sheet 203.
  • the upper end of the support piece 202 is coupled to the inner side of the positioning skirt 201, and the lower end thereof is coupled to the upper end of the curved surface protection sheet 203.
  • the curved surface protection sheet 203 is a curved surface asymmetric structure, and forms a deformable zone R zone and a protection zone Q zone along the center line of the positioning skirt 201 and the left and right sides of the extension line 203-0.
  • the sealing ring 5 forms a good protection.
  • the left and right sides of the curved surface protection sheet 203 have different curvatures. The different curvatures on the left and right sides reduce the resistance of various shaped instruments when inserted and removed.
  • the puncturing device comprising the sealing ring protection sheet for the puncturing device of the invention can ensure that the funnel-shaped sealing ring 5 is not punctured by the surgical instrument during the operation, ensuring good sealing performance and reducing the resistance during exercise. To ensure the smoothness of the surgical instruments during exercise.
  • FIG. 1 is a perspective view showing the structure of a seal ring for a puncturing device of the present invention.
  • Figure 1-1 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 2 is a front elevational view of the seal protector for a trocar of the present invention.
  • Figure 2-1 is a plan view of Figure 2.
  • 2-2 is a bottom view of Fig. 2.
  • Figure 2-3 is a side view of Figure 2.
  • FIG. 2 is side views of FIG. 2.
  • Fig. 3 is a protective sheet assembly composed of eight sealing ring protective sheets for a trocar of the present invention.
  • Figure 3-1 is an exploded view of Figure 3.
  • Figure 3-2 is a bottom view of Figure 3.
  • Figure 3-3 is an exploded view of Figure 3-2.
  • Figure 3-4 is a front view of Figure 3.
  • 3-5 is a cross-sectional view taken along line B-B of Fig. 3.
  • FIG. 4 is a top plan view of the end seal assembly of the present invention.
  • Figure 4-1 is a front view of Figure 4.
  • Figure 4-2 is a bottom view of Figure 4-1.
  • FIG. 4-3 is a schematic top perspective view of the structure of FIG. 4-1.
  • FIG. 4-4 is a schematic bottom perspective view of FIG. 4-1.
  • 4-5 is a cross-sectional view taken along line C-C of Fig. 4.
  • Figure 4-6 is an exploded view of Figure 4-1 when viewed from above.
  • Figure 4-7 is an exploded view of Figure 4-1 from the bottom.
  • Figure 5 is a schematic view showing the structure of the trocar of the present invention.
  • 1 is the upper pressure plate
  • 2 is the sealing ring protection piece for the puncturing device
  • 3 is the corrugated sealing ring
  • 4 is the positioning seat
  • 5 is the funnel-shaped sealing ring
  • 6 is the lower pressing plate
  • 9 is the surgical instrument channel
  • 20 is the end sealing
  • 21 is a protective sheet assembly
  • 29 is a puncturing device.
  • 201 is a positioning skirt
  • 202 is a supporting piece
  • 203 is a curved protective sheet.
  • 201-1 is a positioning hole.
  • 203-0 is the center line of the positioning skirt and its extension line
  • 203-1 right oblique side 203-2 is the bottom side
  • 203-3 is the left oblique side
  • 203-4 is the upper side
  • 203-23 is the transitional arc.
  • 203-41 is the upper right side of the upper side of the curved protective sheet
  • 203-42 is the upper left side of the upper side of the curved protective sheet.
  • the R zone is a deformable zone of the curved protective sheet
  • the Q zone is a protective zone of the curved protective sheet.
  • ⁇ is the angle between the surface protection sheet and the support sheet
  • ⁇ is the angle between the right oblique side and the bottom side
  • D1 is the farthest distance from the right oblique side to the center line of the positioning skirt and its extension line
  • D2 It is the farthest distance from the left oblique side to the center line of the positioning skirt and its extension line.
  • 1-1 is the positioning post of the upper platen
  • 3-1 is the positioning hole of the corrugated sealing ring
  • 4-1 is the upper positioning hole on the positioning seat
  • 4-2 is the lower positioning hole on the positioning seat
  • 5-1 is the funnel
  • 6-1 is the positioning post on the lower pressure plate.
  • 100 is a sheath tube, 200 is a puncture rod; 101 is an end cap, 102 is a sleeve assembly; 101-1 is an upper shell, and 101-2 is a lower shell.
  • Embodiment 1 Sealing ring protection sheet for a trocar of the present invention
  • the sealing ring protection sheet 2 for the puncturing device comprises a positioning skirt 201, a supporting piece 202 and a curved surface protection sheet 203.
  • the positioning skirt 201 is a sheet-like structure on which a positioning hole 201-1 is provided.
  • the inner side of the positioning skirt 201 is coupled to the upper end of the support piece 202.
  • the positioning skirt 201 is perpendicular to the support sheet 202.
  • the support piece 202 is a sheet-like structure, and an upper end thereof is connected to an inner side of the positioning skirt 201; a lower end thereof is connected to an upper end of the curved surface protection sheet 203.
  • the curved surface protection sheet 203 is a curved surface asymmetric structure, and includes a right oblique side 203-1, a bottom side 203-2, a left oblique side 203-3, an upper side 203-4, and a transition arc 203-23.
  • the right oblique side 203-1 and the left oblique side 203-3 are on both sides of the bottom edge 203-2; the curved surface protection sheet 203 is suspended on the support piece 202, and the upper side 203- of the curved surface protection sheet 203 4 is connected to the lower end of the support piece 202.
  • the angle ⁇ between the curved surface protection sheet 203 and the support sheet 202 is greater than 90°. In the embodiment, the angle ⁇ is between 120° and 170°.
  • the angle ⁇ between the right oblique side 203-1 and the bottom side 203-2 is between 70° and 90°.
  • the right oblique side 203-1 and the left oblique side 203-3 are asymmetrically distributed along a center line of the positioning skirt 201 and an extension line 203-0 thereof.
  • the farthest distance D1 from the right oblique side 203-1 to the center line of the positioning skirt 201 and the extension line 203-0 thereof is smaller than the center line of the left oblique side 203-3 to the positioning skirt 201 and Its extension line 203-0 is the farthest distance D2.
  • the curved surface protection sheet 203 of the sealing ring protection sheet 2 for the puncturing device is provided with a deformable region R region with weak deformation strength and a protective region Q region with strong deformation strength, and the deformation resistance of the R region of the easily deformable region Less than the deformation resistance of the Q zone of the protection zone.
  • the deformable region R region is disposed on the right side of the curved surface protection sheet 203 of the seal ring protection sheet 2 for the piercer, and the protection region Q region is disposed on the curved surface protection sheet 203 of the seal ring protection sheet 2. On the left side.
  • the thickness of the R zone of the deformable zone is smaller than the thickness of the Q zone of the protection zone. Since the thickness of the R zone of the deformable zone is smaller than the thickness of the Q zone of the protection zone, when subjected to an external force, the R zone of the easily deformable zone will rapidly deform before the Q zone of the protection zone, and will be retreated backward. Thereby, the movement resistance of the seal protection sheet 2 for the trocar to the instrument is reduced.
  • the funnel-type sealing ring 5 can still be better protected by the protection zone Q zone to prevent the funnel-shaped sealing ring 5 from being punctured and leaking.
  • the curved surface protection sheet 203 is a curved surface asymmetric structure, the center line of the positioning skirt 201 and its extension line 203-0 are divided, and the curved surface protection sheet 203 is at the center line. And the two sides of the extension line 203-0 respectively form a deformable zone R zone and a protection zone Q zone.
  • the right side part of the curved surface protection sheet 203 is the easy deformation zone.
  • the left side of the curved surface protection sheet 203 is the protection zone Q zone.
  • the asymmetric sheet-like structure of the curved surface protection sheet 203 can not only open the surgical instrument channel 9 when the surgical instrument passes, but also reduce the resistance when the surgical instrument passes, and can ensure the funnel type.
  • the good protection of the sealing ring 5 ensures that the funnel-shaped sealing ring 5 is not easily pierced by the surgical instrument during the operation, and the protection of the sealing ring protection piece 2 for the puncturing device is well balanced. Sports resistance requirements.
  • the eight sealing ring protection sheets 2 for the puncturing device are alternately superposed and distributed along 45° to form a funnel-shaped protective sheet assembly 21, with reference to FIG. 3 to FIG. 3-5.
  • the sealing ring protection sheets 2 of the device are alternately superposed and distributed along 45°, and a funnel-shaped structure with a good symmetric distribution can be formed well on the upper portion of the funnel-shaped sealing ring 5.
  • This structure ensures that when the surgical instrument passes, the funnel-type protective sheet assembly 21 formed by alternately stacking the eight sealing ring protective sheets 2 reduces the area of contact between the surgical instrument and the sealing ring 5 as much as possible, thereby ensuring At the same time of sealing, the frictional resistance of the movement of the instrument is also reduced as much as possible.
  • the funnel-type protective sheet assembly 21 formed by the eight sheets of the seal ring protection sheet 2 is an optimized optimum structure.
  • the curvature of the left side portion of the curved surface protection sheet 203 is different from the curvature of the right side portion.
  • the curvature of the left side of the curved surface protection sheet 203 is smaller than the curvature of the right side of the curved surface protection sheet 203.
  • the radius of curvature of the right side of the curved surface protection sheet 203 is 20 mm
  • the radius of curvature of the left side of the curved surface protection sheet 203 is 25 mm
  • the radius of curvature of the right side of the curved surface protection sheet 203 is smaller than that of the curved surface protection sheet.
  • the curvature radius of the left side of the curved surface protection sheet 203 is larger than the curvature of the left side of the curved surface protection sheet 203.
  • the curvature radius of the right side of the curved surface protection sheet 203 is smaller than the curvature of the left side of the curved surface protection sheet 203.
  • Rate radius when surgical instruments, especially shaped surgical instruments, such as 7-negative forceps or surgical instruments with convex or grooved passages, are passed through, because the radius of curvature of the right side is small, when the special-purpose surgical instrument is pulled out,
  • the right R region of the curved surface protection sheet 203 has small deformation resistance, small radius of curvature and large curvature, and the R region can be conveniently flipped, which facilitates the extraction of the special-shaped instrument and reduces the movement resistance of the shaped device when it is pulled out.
  • the seal protection sheet 2 for the trocar is not easily caught in a profiled portion, such as a convex step or a groove, which greatly improves the smoothness of insertion or removal of various shaped instruments.
  • the upper edge 203-4 of the curved surface protection sheet 203 includes a right upper edge 203-41 and a left upper edge 203-42; the right upper edge 203-41 is lower than the left upper edge 203-42. Therefore, when the surgical instrument passes, the left upper side 203-42 is not deformed by force until the surgical instrument reaches the upper right side 203-41.
  • the upper right side 203-41 is reached, the R area on the right side of the curved surface protection sheet 203 is rapidly deformed, the Q area on the left side of the curved surface protection sheet 203 is slightly deformed, and the surgical instrument channel 9 is rapidly expanded.
  • the surgical instrument enters the funnel-type sealing ring 5 after passing through the sealing ring protection sheet 2 for the trocar.
  • the upper right side 203-41 is lower than the left upper side 203-42, which ensures that the R area on the right side of the curved surface protection sheet 203 precedes the Q area on the left side of the curved surface protection sheet 203 when the surgical instrument passes. Deformation occurs, thereby reducing the resistance to movement of the surgical instrument as it passes.
  • the asymmetric structure design of the curved surface protection sheet 203 not only ensures that the funnel-shaped sealing ring 5 is not pierced by the surgical instrument during the operation, but also reduces the resistance during the movement, and ensures the smooth movement of the surgical instrument. Sex.
  • the end seal assembly of the present invention comprises the seal protection sheet 2 for the puncturing device described in Embodiment 1, and the ring formed by the seal protection sheet 2 for the puncturing device. Funnel-type protective sheet assembly 21.
  • the end seal assembly 20 comprises an upper platen 1, a protective sheet 2, a corrugated sealing ring 3, a positioning seat 4, a funnel-shaped sealing ring 5 and a lower pressing plate 6, see Figs. 4-6 and 4-7.
  • the eight protective sheets 2 are mounted on the positioning post 1-1 of the upper pressing plate 1 through the positioning holes 201-1 such that two adjacent protective sheets 2 always present the right side 203 of the curved protective sheet 203. -1 pressing the left side 203-3 of the curved surface protection sheet 203 of the adjacent protective sheet 2, always keeping the right side 203-1 of the curved surface protection sheet 203 always in the upper layer, and the left side of the curved surface protection sheet 203
  • the 203-3 is always in the lower layer, and thus alternately superposed and distributed to form the annular funnel-type protective sheet assembly 21, with reference to FIG. 3 to FIG.
  • the positioning hole 3-1 of the corrugated sealing ring 3 is sleeved on the positioning post 1-1 of the upper pressing plate 1, and the annular funnel-shaped protective sheet assembly 21 is installed between the corrugated sealing ring 3 and the upper pressing plate 1.
  • the positioning base 4 is provided with an upper positioning hole 4-1 and a lower positioning hole 4-2.
  • the positioning post 1-1 of the upper pressing plate 1 is embedded in the upper positioning hole 4-1 of the positioning seat 4,
  • the protective sheet 2 and the corrugated sealing ring 3 are sequentially mounted between the upper pressing plate 1 and the positioning seat 4.
  • the funnel-shaped sealing ring 5 is provided with a positioning hole 5-1, and the lower pressing plate 6 is provided with a positioning post 6-1, and the positioning post 6-1 of the lower pressing plate 6 passes through the funnel-shaped sealing ring 5
  • the positioning hole 5-1 is embedded in the lower positioning hole 4-2 of the positioning base 4, and the funnel-shaped sealing ring 5 is installed between the lower pressing plate 6 and the positioning seat 4, with reference to FIG. 4 to FIG. -5.
  • the end seal assembly 20 adopts the annular funnel-type protective sheet assembly 21, which ensures that the funnel-shaped sealing ring 5 is not punctured by the surgical instrument during the operation, and the resistance during exercise is reduced, which is good.
  • the ground ensures the smoothness of the movement of the surgical instruments, especially for the insertion and extraction of various special-shaped instruments.
  • the piercer 29 includes the end seal assembly 20 of the second embodiment.
  • the trocar 29 includes a sheath tube 100 and a puncturing rod 200.
  • the sheath 100 includes an end cap 101 and a cannula assembly 102.
  • the end seal assembly 20 is embedded between the upper case 101-1 and the lower case 101-2 of the end cap 101.
  • the core of the piercer 29 in this embodiment is that the end seal assembly 20 of the piercer 29 is used for piercing as described in the embodiment 1.
  • the seal ring protection sheet 2 of the device is alternately stacked to form an annular funnel-type protection sheet assembly 21.
  • the funnel-shaped sealing ring 5 is not punctured by the surgical instrument during the operation, and the movement of the surgical instrument is reduced.
  • the resistance ensures the smoothness of the movement of the surgical instrument, and particularly facilitates the insertion and extraction of various shaped instruments, so that the puncture device of the invention has good clinical use value.

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Abstract

提供了一种用于穿刺器的密封圈保护片，包括定位裙边（201）、支撑片（202）及曲面保护片（203）。支撑片（202）的上端和定位裙边（201）的内侧连接在一起，其下端与曲面保护片（203）上端连接在一起。曲面保护片（203）是曲面的非对称的片状结构，沿定位裙边（201）的中心线及其延伸线的两侧分别形成易变形区和保护区，曲面保护片（203）的左侧和右侧具有不同的曲率。左右两侧不同曲率的设计，降低了各种异型器械插入和拔出时的阻力。还提供了含有密封圈保护片的密封组件及穿刺器，既可以保证手术过程中漏斗型密封圈不被器械刺破，保证良好的密封性，又降低了运动时的阻力，特别是降低了各种异型手术器械插入和拔出时的阻力。

Description

用于穿刺器的密封圈保护片、端密封组件及穿刺器 技术领域
本发明涉及一种外科手术器械，特别是涉及在腹腔镜手术中使用的穿刺器的密封圈保护片、端密封组件及穿刺器。
背景技术
腹腔镜手术得到了越来越广泛的应用，为了避免医源性感染，腹腔镜手术中使用的一次性穿刺器(Trocar)的用量也越来越大。在频繁的手术器械进出的过程中，保证穿刺器的动态密封性是保证手术顺利进行的关键。而且，手术过程中，会使用各种不同形状的手术器械，因此，穿刺器还需要能够适应各种不同形状的手术器械，方便器械的进入和退出，并且，器械的进入退出的过程需要保持低阻力，从而保证器械运动过程的流畅性。
现有技术中，通用的径向密封圈是漏斗型密封圈，为了保证长时间的手术过程中密封圈不被手术器械刺破，造成泄露，通常在漏斗型密封圈的上部会安装密封圈保护片，使得器械在进出穿刺器时，沿着保护片的表面向内运动通过径向密封圈。密封圈保护片的设计，可以让密封圈的厚度在保持密封系能的同时尽可能降低，从而降低密封圈对器械进出造成的阻力，但反过来，密封圈保护片本身又会对器械进出增加运动阻力。特别是对于异型手术器械，如7字钳、或带凸阶或凹槽的手术器械，现有技术的保护片会镶嵌在凸阶或凹槽处，在手术器械插入或拔出时形成较大的阻力。因此，需要对现有的密封圈保护片进行改进，对密封圈提供足够的保护能力的同时，进一步降低保护片对器械进出造成的运动阻力。
发明内容
本发明之用于穿刺器的密封圈保护片，其特征在于：所述用于穿刺器的密封圈保护片2，含定位裙边201、支撑片202及曲面保护片203；
A.所述定位裙边201是片状结构，其上设有定位孔201-1；所述定位裙边201的内侧与所述支撑片202上端连接在一起；
B.所述支撑片202是片状结构，其上端与所述定位裙边201内侧连接；其下端与所述曲面保护片203上端连接；
C.所述曲面保护片203是曲面的非对称的片状结构，含右斜边203-1、底边203-2、左斜边203-3、上边203-4及过渡弧线203-23；所述右斜边203-1及左斜边203-3在底边203-2两侧；所述曲面保护片203悬吊在所述支撑片202上，所述曲面保护片203的上边203-4与所述支撑片202下端相连接。
所述曲面保护片203与所述支撑片202之间的夹角α≥90°，通常在90°～170°之间。
所述右斜边203-1与所述底边203-2之间的夹角β在70°～90°之间。
所述右斜边203-1和所述左斜边203-3沿所述定位裙边201的中心线及其延伸线203-0呈非对称分布。
所述右斜边203-1至所述定位裙边201的中心线及其延伸线203-0的最远距离D1小于所述左斜边203-3至所述定位裙边201的中心线及其延伸线203-0的最远距离D2。
所述用于穿刺器的密封圈保护片2的曲面保护片203设有变形强度较弱的易变形区R区和变形强度较强的保护区Q区，所述易变形区R区的变形抗力小于所述保护区Q区的变形抗力。
所述易变形区R区设在所述用于穿刺器的密封圈保护片2的曲面保护片203的右侧，所述保护区Q区设在所述密封圈保护片2的曲面保护片203的左侧。
所述易变形区R区的厚度小于所述保护区Q区的厚度。由于所述易变形区R区的厚度小于所述保护区Q区的厚度，当受到外力作用时，所述易变形区R区会先于所述保护区Q区迅速发生变形，向后退让，从而减少所述用于穿刺器的密封圈保护片2对器械的运动阻力。而所述保护区Q区仍然可以较好地对所述漏斗型密封圈5进行保护，以避免所述漏斗型密封圈5被刺破而发生泄漏。
由于所述曲面保护片203采用的是曲面的非对称的片状结构，沿所述定位裙边201的中心线及其延伸线203-0进行划分，所述曲面保护片203在所述中心线及其延伸线203-0的两侧分别形成易变形区R区和保护区Q区，按本申请提交的说明书附图表述，所述曲面保护片203的右侧部分为所述易变形区R区，所述曲面保护片203的左侧为所述保护区Q区。在手术器械进入和退出时，所述R区受力后快速发生变形，从而迅速扩大手术器械通道9，降低手术器械通过所述用于穿刺器的密封圈保护片2时的阻力，而所述Q区发生轻微变形后，仍然较好地贴合在漏斗型密封圈5上，对所述漏斗型密封圈5起到良好的保护作用。所述曲面保护片203的非对称的片状结构的设计，既使得手术器械通过时能够迅速的打开所述手术器械通道9，降低手术手术器械通过时的阻力，又能够保证对所述漏斗型密封圈5的良好保护作用，保证所述漏斗型密封圈5在手术过程中不容易被手术器械刺破，很好地兼顾了所述用于穿刺器的密封圈保护片2的保护作用和低运动阻力要求。
4个或4个以上所述用于穿刺器的密封圈保护片2交替叠加分布，能构成漏斗型保护片组件21。
进一步，8个所述用于穿刺器的密封圈保护片2沿45°交替叠加分布，能构成漏斗型保 护片组件21。8片所述用于穿刺器的密封圈保护片2沿45°交替叠加分布，可以很好地在所述漏斗型密封圈5的上部形成贴合作用良好的对称分布的漏斗型结构。这种结构保证了在手术器械通过时，由于8片所述密封圈保护片2交替叠加形成的漏斗型保护片组件21，将手术器械与密封圈5接触的面积尽可能地减少，因此在保证密封性的同时，器械运动的摩擦阻力也尽可能地降低。这种8片所述密封圈保护片2形成的漏斗型保护片组件21是优化出来的最佳结构。
所述曲面保护片203的左侧部分的曲率与右侧部分的曲率不相同。
进一步，所述曲面保护片203左侧的曲率小于所述曲面保护片203右侧的曲率。
由于所述曲面保护片203右侧的曲率半径小于所述曲面保护片203左侧的曲率半径，即所述曲面保护片203右侧的曲率大于所述曲面保护片203左侧的曲率，当手术器械，特别是异型手术器械，如7字钳或带凸阶或凹槽的手术器械，通过时，由于右侧的曲率半径较小，拔出这种异型手术器械时，所述曲面保护片203的右侧R区由于变形抗力小，曲率半径小，曲率大，所述R区能方便地翻转，利于异型器械的拔出，减小异型器械拔出时的运动阻力，使得所述用于穿刺器的密封圈保护片2不容易卡在异型部位，如凸阶或凹槽处，大大地提高了各种异型器械插入或拔出时的顺畅性。
所述曲面保护片203的上边203-4含右侧上边203-41、左侧上边203-42；所述右侧上边203-41低于所述左侧上边203-42。因此，当手术器械通过时，手术器械在抵达所述右侧上边203-41前，所述左侧上边203-42不会受力发生变形。当抵达所述右侧上边203-41时，所述曲面保护片203右侧的R区快速发生变形，所述曲面保护片203左侧的Q区发生轻微变形，所述手术器械通道9迅速扩大，手术器械通过所述用于穿刺器的密封圈保护片2后进入所述漏斗型密封圈5。所述右侧上边203-41低于所述左侧上边203-42，保证了手术器械通过时，所述曲面保护片203右侧的R区先于所述曲面保护片203左侧的Q区发生变形，从而降低手术器械通过时的运动阻力。
所述定位裙边201垂直于所述支撑片202。
本发明之端密封组件含所述用于穿刺器的密封圈保护片2。
所述端密封组件20含上压板1、保护片2、波纹密封圈3、定位座4、漏斗形密封圈5及下压板6；8个所述保护片2通过所述定位孔201-1安装在所述上压板1的定位柱1-1上，使得相邻两个所述保护片2始终呈现曲面保护片203的右侧203-1压住其相邻的保护片2的曲面保护片203的左侧203-3，始终保持所述曲面保护片203的右侧203-1始终处于上层，所述曲面保护片203的左侧203-3始终处于下层，如此交替叠加分布构成环状漏斗型保护片组件21；所述波纹密封圈3的定位孔3-1套在上压板1的定位柱1-1上，所述环状漏斗型保护片组件21安装在波纹密封圈3与上压板1之间；所述定位座4上设有上定位孔4-1及下定位孔4-2，所述上压板1的定位柱1-1镶嵌在所述定位座4的上定位孔4-1内，所述上压板1与所述定位座4之间依次安装有所述保护片2和所述波纹密封圈3；所述漏 斗型密封圈5上设有定位孔5-1，所述下压板6设有定位柱6-1，所述下压板6的定位柱6-1穿过所述漏斗型密封圈5的定位孔5-1镶嵌在所述定位座4的下定位孔4-2内，所述下压板6与所述定位座4之间安装有所述漏斗形密封圈5。
所述端密封组件20由于采用了所述环状漏斗型保护片组件21，既保证了手术过程中所述漏斗型密封圈5不被手术器械刺破，又降低了运动时的阻力，很好地保证了手术器械运动的流畅性。
本发明之穿刺器含所述用于穿刺器的密封圈保护片2。
进一步，所述穿刺器29含所述端密封组件20。
本发明之用于穿刺器的密封圈保护片含定位裙边201、支撑片202及曲面保护片203。所述支撑片202的上端和所述定位裙边201的内侧连接在一起，其下端与所述曲面保护片203上端连接在一起。所述曲面保护片203是曲面的非对称的片状结构，沿所述定位裙边201的中心线及其延伸线203-0的左右两侧分别形成易变形区R区和保护区Q区，手术器械通过时，所述易变形区R区快速发生变形，迅速扩大所述手术器械通道9，降低手术器械通过时的运动阻力，所述保护区Q区仅发生轻微变形，仍然对所述漏斗型密封圈5形成良好的保护作用。所述曲面保护片203的左侧和右侧具有不同的曲率。左右两侧不同曲率的设计，降低了各种异型器械插入和拔出时的阻力。含本发明之用于穿刺器的密封圈保护片的穿刺器，既可以保证手术过程中所述漏斗型密封圈5不被手术器械刺破，保证良好的密封性，又降低了运动时的阻力，保证手术器械运动时的流畅性。
附图说明
图1是本发明之用于穿刺器的密封圈保护片的立体结构示意图。
图1-1是图1之A-A剖视图。
图2是本发明之用于穿刺器的密封圈保护片的主视图。
图2-1是图2的俯视图。
图2-2是图2的仰视图。
图2-3是图2的侧视图。
图2-4是图2的侧视图。
图3是8片本发明之用于穿刺器的密封圈保护片组成的保护片组件。
图3-1是图3的爆炸图。
图3-2是图3的仰视图。
图3-3是图3-2的爆炸图。
图3-4是图3的主视图。
图3-5是图3的B-B剖视图。
图4是本发明之端密封组件的俯视图。
图4-1是图4的主视图。
图4-2是图4-1的仰视图。
图4-3是图4-1的俯视立体结构示意图。
图4-4是图4-1的仰视立体结构示意图。
图4-5是图4的C-C剖视图。
图4-6是图4-1俯视时的爆炸图。
图4-7是图4-1仰视时的爆炸图。
图5是本发明之穿刺器的结构示意图。
上述图中：
1为上压板，2为用于穿刺器的密封圈保护片，3为波纹密封圈，4为定位座，5为漏斗形密封圈，6为下压板，9为手术器械通道，20为端密封组件，21为保护片组件，29为穿刺器。
在用于穿刺器的密封圈保护片上：
201为定位裙边，202为支撑片，203为曲面保护片。
201-1为定位孔。
203-0为定位裙边的中心线及其延伸线，203-1右斜边，203-2为底边，203-3为左斜边，203-4为上边，203-23为过渡弧线。
203-41为曲面保护片上边的右侧上边，203-42为曲面保护片上边的左侧上边。
R区为曲面保护片的易变形区，Q区为曲面保护片的保护区。
α为曲面保护片与支撑片之间的夹角，β为右斜边与底边之间的夹角，D1为右斜边至定位裙边的中心线及其延伸线的最远距离，D2为左斜边至定位裙边的中心线及其延伸线的最远距离。
在端密封组件上：
1-1为上压板的定位柱，3-1为波纹密封圈的定位孔，4-1为定位座上的上定位孔，4-2为定位座上的下定位孔，5-1为漏斗型密封圈上的定位孔，6-1为下压板上的定位柱。
在穿刺器上：
100为鞘管，200为穿刺杆；101为端盖，102为套管组件；101-1为上壳，101-2为下壳。
具体实施方式
实施例1：本发明之用于穿刺器的密封圈保护片
参考图1至图3-5，本实施例中，所述用于穿刺器的密封圈保护片2含定位裙边201、支撑片202及曲面保护片203。
所述定位裙边201是片状结构，其上设有定位孔201-1。所述定位裙边201的内侧与所述支撑片202上端连接在一起。所述定位裙边201垂直于所述支撑片202。
所述支撑片202是片状结构，其上端与所述定位裙边201内侧连接；其下端与所述曲面保护片203上端连接。
所述曲面保护片203是曲面的非对称的片状结构，含右斜边203-1、底边203-2、左斜边203-3、上边203-4及过渡弧线203-23。所述右斜边203-1及左斜边203-3在底边203-2两侧；所述曲面保护片203悬吊在所述支撑片202上，所述曲面保护片203的上边203-4与所述支撑片202下端相连接。
所述曲面保护片203与所述支撑片202之间的夹角α大于90°，本实施例中，所述夹角α在120°～170°之间。
所述右斜边203-1与所述底边203-2之间的夹角β在70°～90°之间。
所述右斜边203-1和所述左斜边203-3沿所述定位裙边201的中心线及其延伸线203-0呈非对称分布。
所述右斜边203-1至所述定位裙边201的中心线及其延伸线203-0的最远距离D1小于所述左斜边203-3至所述定位裙边201的中心线及其延伸线203-0的最远距离D2。
所述用于穿刺器的密封圈保护片2的曲面保护片203设有变形强度较弱的易变形区R区和变形强度较强的保护区Q区，所述易变形区R区的变形抗力小于所述保护区Q区的变形抗力。
所述易变形区R区设在所述用于穿刺器的密封圈保护片2的曲面保护片203的右侧，所述保护区Q区设在所述密封圈保护片2的曲面保护片203的左侧。
所述易变形区R区的厚度小于所述保护区Q区的厚度。由于所述易变形区R区的厚度小于所述保护区Q区的厚度，当受到外力作用时，所述易变形区R区会先于所述保护区Q区迅速发生变形，向后退让，从而减少所述用于穿刺器的密封圈保护片2对器械的运动阻力。而所述保护区Q区仍然可以较好地对所述漏斗型密封圈5进行保护，以避免所述漏斗型密封圈5被刺破而发生泄漏。
由于所述曲面保护片203采用的是曲面的非对称的片状结构，沿所述定位裙边201的中心线及其延伸线203-0进行划分，所述曲面保护片203在所述中心线及其延伸线203-0的两侧就会分别形成易变形区R区和保护区Q区，参考图1和图1-1，所述曲面保护片203的右侧部分为所述易变形区R区，所述曲面保护片203的左侧为所述保护区Q区。在手术器械进入和退出时，所述R区受力后快速发生变形，从而迅速扩大手术器械通道9，降低手术器械通过所述用于穿刺器的密封圈保护片2时的阻力，而所述Q区发生轻微变形后，仍然较好地贴合在漏斗型密封圈5上，对所述漏斗型密封圈5起到良好的保护作用。所述曲面保护片203的非对称的片状结构的设计，既使得手术器械通过时能够迅速的打开所述手术器械通道9，降低手术手术器械通过时的阻力，又能够保证对所述漏斗型密封圈5的良好保护作用，保证所述漏斗型密封圈5在手术过程中不容易被手术器械刺破，很好地兼顾了所述用于穿刺器的密封圈保护片2的保护作用和低运动阻力要求。
本实施例中，8个所述用于穿刺器的密封圈保护片2沿45°交替叠加分布，构成漏斗型保护片组件21，参考图3至图3-5。8片所述用于穿刺器的密封圈保护片2沿45°交替叠加分布，可以很好地在所述漏斗型密封圈5的上部形成贴合作用良好的对称分布的漏斗型结构。这种结构保证了在手术器械通过时，由于8片所述密封圈保护片2交替叠加形成的漏斗型保护片组件21，将手术器械与密封圈5接触的面积尽可能地减少，因此在保证密封性的同时，器械运动的摩擦阻力也尽可能地降低。这种8片所述密封圈保护片2形成的漏斗型保护片组件21是优化出来的最佳结构。
所述曲面保护片203的左侧部分的曲率与右侧部分的曲率不相同。
进一步，所述曲面保护片203左侧的曲率小于所述曲面保护片203右侧的曲率。
本实施例中，所述曲面保护片203右侧的曲率半径为20mm，所述曲面保护片203左侧的曲率半径为25mm，所述曲面保护片203右侧的曲率半径小于所述曲面保护片203左侧的曲率半径；即本实施例中，所述曲面保护片203右侧的曲率大于所述曲面保护片203左侧的曲率。由于所述曲面保护片203右侧的曲率半径小于所述曲面保护片203左侧的曲 率半径，当手术器械，特别是异型手术器械，如7字钳或带凸阶或凹槽的手术器械，通过时，由于右侧的曲率半径较小，拔出这种异型手术器械时，所述曲面保护片203的右侧R区由于变形抗力小，曲率半径小，曲率大，所述R区能方便地翻转，利于异型器械的拔出，减小异型器械拔出时的运动阻力，使得所述用于穿刺器的密封圈保护片2不容易卡在异型部位，如凸阶或凹槽处，大大地提高了各种异型器械插入或拔出时的顺畅性。
所述曲面保护片203的上边203-4含右侧上边203-41、左侧上边203-42；所述右侧上边203-41低于所述左侧上边203-42。因此，当手术器械通过时，手术器械在抵达所述右侧上边203-41前，所述左侧上边203-42不会受力发生变形。当抵达所述右侧上边203-41时，所述曲面保护片203右侧的R区快速发生变形，所述曲面保护片203左侧的Q区发生轻微变形，所述手术器械通道9迅速扩大，手术器械通过所述用于穿刺器的密封圈保护片2后进入所述漏斗型密封圈5。所述右侧上边203-41低于所述左侧上边203-42，保证了手术器械通过时，所述曲面保护片203右侧的R区先于所述曲面保护片203左侧的Q区发生变形，从而降低手术器械通过时的运动阻力。
所述曲面保护片203的非对称结构设计，既保证了手术过程中所述漏斗型密封圈5不被手术器械刺破，又降低了运动时的阻力，很好地保证了手术器械运动的流畅性。
实施例2：本发明之端密封组件
参考图4至图4-7，本发明之端密封组件含实施例1所述用于穿刺器的密封圈保护片2，以及由所述用于穿刺器的密封圈保护片2组成的环状漏斗型保护片组件21。
所述端密封组件20含上压板1、保护片2、波纹密封圈3、定位座4、漏斗形密封圈5及下压板6，参考图4-6和图4-7。
8个所述保护片2通过所述定位孔201-1安装在所述上压板1的定位柱1-1上，使得相邻两个所述保护片2始终呈现曲面保护片203的右侧203-1压住其相邻的保护片2的曲面保护片203的左侧203-3，始终保持所述曲面保护片203的右侧203-1始终处于上层，所述曲面保护片203的左侧203-3始终处于下层，如此交替叠加分布构成环状漏斗型保护片组件21，参考图3至图3-5。
所述波纹密封圈3的定位孔3-1套在上压板1的定位柱1-1上，所述环状漏斗型保护片组件21安装在波纹密封圈3与上压板1之间。所述定位座4上设有上定位孔4-1及下定位孔4-2，所述上压板1的定位柱1-1镶嵌在所述定位座4的上定位孔4-1内，所述上压板1与所述定位座4之间依次安装有所述保护片2和所述波纹密封圈3。所述漏斗型密封圈5上设有定位孔5-1，所述下压板6设有定位柱6-1，所述下压板6的定位柱6-1穿过所述漏斗型密封圈5的定位孔5-1镶嵌在所述定位座4的下定位孔4-2内，所述下压板6与所述定位座4之间安装有所述漏斗形密封圈5，参考图4至图4-5。
所述端密封组件20由于采用了所述环状漏斗型保护片组件21，既保证了手术过程中所述漏斗型密封圈5不被手术器械刺破，又降低了运动时的阻力，很好地保证了手术器械运动的流畅性，特别是有利于各种异型器械的插入和拔出。
实施例3：本发明之穿刺器
参考图5，本实施例中，所述穿刺器29含实施例2中所述端密封组件20。
所述穿刺器29含鞘管100和穿刺杆200。所述鞘管100含端盖101和套管组件102。所述端密封组件20镶嵌在所述端盖101的上壳101-1和下壳101-2之间。
不论采用何种结构的穿刺杆200和套管组件102，本实施例中所述穿刺器29的核心在于所述穿刺器29的端密封组件20中采用了由实施例1中所述用于穿刺器的密封圈保护片2交替叠加构成的环状漏斗型保护片组件21。
由于所述穿刺器的密封圈保护片2的曲面保护片203的非对称结构设计，既保证了手术过程中所述漏斗型密封圈5不被手术器械刺破，又降低了手术器械运动时的阻力，很好地保证了手术器械运动的流畅性，特别是方便各种异型器械的插入和拔出，使得本发明之穿刺器具有良好的临床使用价值。
应该注意，本文中公开和说明的结构可以用其它效果相同的结构代替，同时本发明所介绍的实施例并非实现本发明的唯一结构。虽然本发明的优先实施例已在本文中予以介绍和说明，但本领域内的技术人员都清楚知道这些实施例不过是举例说明而已，本领域内的技术人员可以做出无数的变化、改进和代替，而不会脱离本发明，因此，应按照本发明所附的权利要求书的精神和范围来限定本发明的保护范围。

Claims (18)

  1. 用于穿刺器的密封圈保护片，其特征在于：所述用于穿刺器的密封圈保护片(2)，含定位裙边(201)、支撑片(202)及曲面保护片(203)；
    A.所述定位裙边(201)是片状结构，其上设有定位孔(201-1)；所述定位裙边(201)的内侧与所述支撑片(202)上端连接在一起；
    B.所述支撑片(202)是片状结构，其上端与所述定位裙边(201)内侧连接；其下端与所述曲面保护片(203)上端连接；
    C.所述曲面保护片(203)是曲面的非对称的片状结构，含右斜边(203-1)、底边(203-2)、左斜边(203-3)、上边(203-4)及过渡弧线(203-23)；所述右斜边(203-1)及左斜边(203-3)在底边(203-2)两侧；所述曲面保护片(203)悬吊在所述支撑片(202)上，所述曲面保护片(203)的上边(203-4)与所述支撑片(202)下端相连接。
  2. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：所述曲面保护片(203)与所述支撑片(202)之间的夹角α≥90°。
  3. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：所述左斜边(203-3)与所述底边(203-2)之间的夹角β在70°～90°之间。
  4. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：所述右斜边(203-1)和所述右斜边(203-1)沿所述定位裙边(201)的中心线及其延伸线(203-0)呈非对称分布。
  5. 根据权利要求4所述用于穿刺器的密封圈保护片，其特征在于：所述右斜边(203-1)至所述定位裙边(201)的中心线及其延伸线(203-0)的最远距离D1小于所述左斜边(203-3)至所述定位裙边(201)的中心线及其延伸线(203-0)的最远距离D2。
  6. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：所述用于穿刺器的密封圈保护片(2)的曲面保护片(203)设有变形强度较弱的易变形区(R区)和变形强度较强的保护区(Q区)，所述易变形区(R区)的变形抗力小于所述保护区(Q区)的变形抗力。
  7. 根据权利要求11所述用于穿刺器的密封圈保护片，其特征在于：所述易变形区(R区)设在所述用于穿刺器的密封圈保护片(2)的曲面保护片(203)的右侧，所述保护区(Q区)设在所述密封圈保护片(2)的曲面保护片(203)的左侧。
  8. 根据权利要求7所述用于穿刺器的密封圈保护片，其特征在于：所述易变形区(R区)的厚度小于所述保护区(Q区)的厚度。
  9. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：4个或4个以上所述用于穿刺器的密封圈保护片(2)交替叠加分布，能构成漏斗型保护片组件(21)。
  10. 根据权利要求9所述用于穿刺器的密封圈保护片，其特征在于：8个所述用于穿刺器的密封圈保护片(2)沿45°交替叠加分布，能构成漏斗型保护片组件(21)。
  11. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：所述曲面保护片(203)的左侧部分的曲率与右侧部分的曲率不相同。
  12. 根据权利要求11所述用于穿刺器的密封圈保护片，其特征在于：所述曲面保护片(203)左侧的曲率小于右侧的曲率。
  13. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：所述曲面保护片(203)的上边(203-4)含右侧上边(203-41)、左侧上边(203-42)；所述右侧上边(203-41)低于所述左侧上边(203-42)。
  14. 根据权利要求1所述用于穿刺器的密封圈保护片，其特征在于：所述定位裙边(201)垂直于所述支撑片(202)。
  15. 端密封组件，其特征在于：所述端密封组件(20)含权利要求1所述用于穿刺器的密封圈保护片(2)。
  16. 根据权利要求15所述端密封组件，其特征在于：所述端密封组件(20)含上压板(1)、保护片(2)、波纹密封圈(3)、定位座(4)、漏斗形密封圈(5)及下压板(6)；8个所述保护片(2)通过所述定位孔(201-1)安装在所述上压板(1)的定位柱(1-1)上，使得相邻两个所述保护片(2)始终呈现曲面保护片(203)的右侧(203-1)压住其相邻的保护片(2)的曲面保护片(203)的左侧(203-3)，始终保持所述曲面保护片(203)的右侧(203-1)始终处于上层，所述曲面保护片(203)的左侧(203-3)始终处于下层，如此交替叠加分布构成环状漏斗型保护片组件(21)；所述波纹密封圈(3)的定位孔(3-1)套在上压板(1)的定位柱(1-1)上，所述环状漏斗型保护片组件(21)安装在波纹密封圈(3)与上压板(1)之间；所述定位座(4)上设有上定位孔(4-1)及下定位孔(4-2)，所述上压板(1)的定位柱(1-1)镶嵌在所述定位座(4)的上定位孔(4-1)内，所述上压板(1)与所述定位座(4)之间依次安装有所述保护片(2)和所述波纹密封圈(3)；所述漏斗型密封圈(5)上设有定位孔(5-1)，所述下压板(6)设有定位柱(6-1)，所述下压板(6)的定位柱(6-1)穿过所述漏斗型密封圈(5)的定位孔(5-1)镶嵌在所述定位座(4)的下定位孔(4-2)内，所述下压板(6)与所述定位座(4)之间安装有所述漏斗形密封圈(5)。
  17. 穿刺器，其特征在于：所述穿刺器(29)含权利要求1所述用于穿刺器的密封圈保护片(2)。
  18. 根据权利要求17所述穿刺器，其特征在于：所述穿刺器(29)含权利要求10所述端密封组件(20)。
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CN107997811A (zh) 2018-05-08
CN107997811B (zh) 2024-06-11

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