CN212466127U - Puncture outfit capable of automatically adjusting specification - Google Patents
Puncture outfit capable of automatically adjusting specification Download PDFInfo
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- CN212466127U CN212466127U CN202021491372.6U CN202021491372U CN212466127U CN 212466127 U CN212466127 U CN 212466127U CN 202021491372 U CN202021491372 U CN 202021491372U CN 212466127 U CN212466127 U CN 212466127U
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- sealing element
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Abstract
The utility model relates to a puncture outfit capable of automatically adjusting specification, which comprises a puncture needle and a puncture sheath matched with the puncture needle; the puncture sheath comprises a puncture sheath tube and a sheath tube seat arranged at the upper end of the puncture sheath tube, a puncture channel communicated with the puncture sheath tube is arranged on the sheath tube seat, a deformable annular sealing element is arranged on the puncture channel, the upper side edge and the lower side edge of the annular sealing element are fixed on the puncture channel, and a cavity is formed in the middle of the annular sealing element. An object of the utility model is to provide a but puncture ware of automatically regulated specification can realize automatically regulated according to the surgical instruments of different specifications to ensure the leakproofness, reduce patient's operation wound and operation time, make things convenient for the operation. The utility model has the advantages that: the utility model discloses set up the annular sealing member of deformability on puncture channel, the annular sealing member can change the size of its internal diameter by oneself according to the apparatus of inserting to adapt to the surgical instruments of different specifications.
Description
Technical Field
The utility model relates to the field of medical equipment, especially a puncture outfit of automatically regulated specification.
Background
At present, most of disposable laparoscopes puncture outfits on the market are of a single specification, and although products for realizing trial use of instruments of different sizes exist, most of the puncture outfits have air leakage and large resistance, or different instrument channels are switched manually, so that the operation of doctors is extremely inconvenient.
The puncture outfit with a single specification is used in the operation, a plurality of wounds need to be created for a patient during the operation, the puncture outfit for the disposable laparoscope with different models and specifications is punctured, the puncture outfit is convenient for providing channels for instruments with different specifications during the operation, the trauma brought by the operation is increased, and the operation time is prolonged. The existing puncture outfit with adjustable specification is used in the operation, manual adjustment is needed by a doctor or an assistant, the operation is inconvenient, the possibility of misoperation is increased, and the product with large resistance or poor sealing performance is not acceptable for the doctor.
Disclosure of Invention
An object of the utility model is to provide a but puncture ware of automatically regulated specification can realize automatically regulated according to the surgical instruments of different specifications to ensure the leakproofness, reduce patient's operation wound and operation time, make things convenient for the operation.
The purpose of the utility model is realized through the following technical scheme: a puncture outfit capable of automatically adjusting specification comprises a puncture needle and a puncture sheath matched with the puncture needle; the puncture sheath comprises a puncture sheath tube and a sheath tube seat arranged at the upper end of the puncture sheath tube, a puncture channel communicated with the puncture sheath tube is arranged on the sheath tube seat, a deformable annular sealing element is arranged on the puncture channel, the upper side edge and the lower side edge of the annular sealing element are fixed on the puncture channel, and a cavity is formed in the middle of the annular sealing element; a sealing chamber communicated with a cavity in the middle of the annular sealing element is arranged on the outer periphery of the puncture channel, a pressure compensation mechanism is arranged in the sealing chamber, the pressure compensation mechanism comprises a compensation cavity communicated with the sealing chamber and a piston arranged in the compensation cavity in a sliding manner, and the volume in the compensation cavity is changed by the piston through displacement; the sealing chamber, the cavity and the compensation cavity are filled with pressure bodies, and the annular sealing element is pressed by the insertion instrument to deform and then drives the piston to slide through the pressure bodies.
Compare prior art, the utility model has the advantages of:
1. the utility model discloses set up the annular sealing member of deformability on puncture channel, the annular sealing member can change the size of its internal diameter by oneself according to the apparatus of inserting to adapt to the surgical instruments of different specifications.
2. The outer periphery of the puncture channel is provided with a sealing chamber communicated with the cavity in the middle of the annular sealing element, and a pressure compensation mechanism is arranged in the sealing chamber, so that pressure can be adjusted according to the deformation degree of the annular sealing element, and the annular sealing element is ensured to have optimal sealing pressure on an inserted instrument.
3. The pressure compensation mechanism is provided with a reset piece, and when the surgical instrument exits from the puncture outfit, the reset piece provides elasticity for the piston to enable the annular sealing piece to reset to the initial state.
Drawings
Fig. 1 is a schematic structural view of an embodiment (initial state) of a puncture instrument with automatically adjustable specifications.
Fig. 2 is a schematic structural view of an embodiment (working state) of the puncture instrument with automatically adjustable specification.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is an enlarged view at a in fig. 1.
Fig. 5 is an enlarged view at C in fig. 2.
Description of reference numerals: the puncture needle comprises a puncture needle 1, a sheath tube base 2, a puncture channel 2-1, a sealing chamber 2-2, a puncture sheath tube 3, an annular sealing element 4, a cavity 4-1, a tabletting 4-2, a pressure compensation mechanism 5, a compensation cavity 5-1, a piston 5-2, a reset element 5-3, a pressure plate 5-4, a sealing ring 5-5 and a snap ring 5-6.
Detailed Description
The invention is described in detail below with reference to the drawings and examples of the specification:
fig. 1 to 5 are schematic views illustrating an embodiment of a puncture device with an automatically adjustable gauge according to the present invention.
A puncture outfit capable of automatically adjusting specification comprises a puncture needle 1 and a puncture sheath matched with the puncture needle 1; the puncture sheath comprises a puncture sheath tube 3 and a sheath tube seat 2 arranged at the upper end of the puncture sheath tube 3, a puncture channel 2-1 communicated with the puncture sheath tube 3 is arranged on the sheath tube seat 2, a deformable annular sealing element 4 is arranged on the puncture channel 2-1, the upper side and the lower side of the annular sealing element 4 are fixed on the puncture channel 2-1, and a cavity 4-1 is formed in the middle of the annular sealing element;
a sealing chamber 2-2 communicated with a middle cavity 4-1 of the annular sealing element 4 is arranged on the outer peripheral side of the puncture channel 2-1, a pressure compensation mechanism 5 is arranged in the sealing chamber 2-2, the pressure compensation mechanism 5 comprises a compensation cavity 5-1 communicated with the sealing chamber 2-2 and a piston 5-2 arranged in the compensation cavity 5-1 in a sliding mode, and the volume of the compensation cavity 5-1 is changed through displacement of the piston 5-2;
the sealing chamber 2-2, the cavity 4-1 and the compensation chamber 5-1 are filled with a pressure body, and the annular sealing element 4 is pressed by an insertion instrument to deform and then drives the piston 5-2 to slide through the pressure body.
The side wall of the puncture channel 2-1 is opened, and the upper side edge and the lower side edge of the annular sealing element 4 are fixed at the opening of the side wall through the pressing sheet 4-2.
The pressure body is gas or liquid. The pressure-strengthening body needs to be nontoxic, harmless and non-reactive to the human body. Such as distilled water, pure oxygen, etc.
The annular seal 4 is an elastic bladder.
The annular sealing element 4 is made of special materials and can withstand the drawing and inserting of various medical instruments without the damage phenomena of tearing, poking, penetration and the like.
The outer surface of the annular seal 4 is provided with a lubricious coating for reducing instrument clogging.
The pressure compensation mechanism 5 further includes a restoring member 5-3 that provides restoring force to the piston 5-2. The reset member 5-3 may be a reset spring.
The upper end face of the sheath tube seat 2 is provided with a vertical sliding groove extending into the sealing chamber 2-2, the piston 5-2 is slidably arranged in the vertical sliding groove, the bottom of the vertical sliding groove is provided with a clamping ring 5-6, and an opening at the upper end of the vertical sliding groove is provided with a pressing plate 5-4.
The snap ring 5-6, the vertical sliding groove and the pressure plate 5-4 form a compensation cavity 5-1.
And a sealing ring 5-5 is arranged between the piston 5-2 and the inner wall of the vertical sliding groove.
The reset piece 5-3 is arranged between the pressure plate 5-4 and the piston 5-2.
And a through hole for accommodating the rear end of the piston 5-2 to extend out is formed in the pressure plate 5-4.
The utility model discloses application method as follows:
initially, the annular seal 4 is in an original state with a smaller inner diameter; when the surgical instrument is used, the surgical instrument presses the annular sealing element 4, the pressure body in the annular sealing element 4 enters the sealing chamber 2-2, and the inner diameter is increased, so that the surgical instrument can smoothly pass through the sealing chamber; the pressure body is extruded by the annular sealing piece 4, so that the piston 5-2 is driven to move upwards, and redundant pressure body enters the compensation cavity 5-1 generated by the piston 5-2 moving upwards; the reset piece 5-3 generates a downward acting force on the piston 5-2 to promote the pressure body to expand the annular sealing piece 4, thereby achieving the effect of sealing the surgical instrument.
Claims (9)
1. A puncture outfit capable of automatically adjusting specification comprises a puncture needle (1) and a puncture sheath matched with the puncture needle (1); puncture sheath is including puncture sheath pipe (3) and locate sheath tube socket (2) of puncture sheath pipe (3) upper end, be equipped with puncture passageway (2-1) with puncture sheath pipe (3) intercommunication on sheath tube socket (2), its characterized in that: the puncture channel (2-1) is provided with a deformable annular sealing element (4), the upper side edge and the lower side edge of the annular sealing element (4) are fixed on the puncture channel (2-1), and a cavity (4-1) is formed in the middle of the annular sealing element;
a sealing chamber (2-2) communicated with a middle cavity (4-1) of the annular sealing element (4) is arranged on the outer peripheral side of the puncture channel (2-1), a pressure compensation mechanism (5) is arranged in the sealing chamber (2-2), the pressure compensation mechanism (5) comprises a compensation cavity (5-1) communicated with the sealing chamber (2-2) and a piston (5-2) arranged in the compensation cavity (5-1) in a sliding mode, and the volume of the compensation cavity (5-1) is changed through displacement of the piston (5-2);
the sealing chamber (2-2), the cavity (4-1) and the compensation cavity (5-1) are filled with a pressure body, and the annular sealing element (4) is pressed by an insertion instrument to deform and then drives the piston (5-2) to slide through the pressure body.
2. The automatically adjustable gauge puncture instrument of claim 1, wherein: the pressure body is gas or liquid.
3. The automatically adjustable gauge puncture instrument of claim 1, wherein: the annular sealing element (4) is an elastic capsule body.
4. The automatically adjustable gauge puncture instrument of claim 1, wherein: the outer surface of the annular seal (4) is provided with a lubricious coating for reducing instrument clogging.
5. The automatically adjustable format puncture instrument according to any one of claims 1 to 4, wherein: the pressure compensation mechanism (5) further comprises a reset piece (5-3) for providing restoring force for the piston (5-2).
6. The automatically adjustable gauge puncture instrument of claim 5, wherein: the upper end face of the sheath tube seat (2) is provided with a vertical sliding groove extending into the sealing chamber (2-2), the piston (5-2) is arranged in the vertical sliding groove in a sliding mode, the bottom of the vertical sliding groove is provided with a clamping ring (5-6), and an opening at the upper end of the vertical sliding groove is provided with a pressing plate (5-4).
7. The automatically adjustable gauge puncture instrument of claim 6, wherein: and a sealing ring (5-5) is arranged between the piston (5-2) and the inner wall of the vertical sliding groove.
8. The automatically adjustable gauge puncture instrument of claim 6, wherein: the reset piece (5-3) is arranged between the pressure plate (5-4) and the piston (5-2).
9. The automatically adjustable gauge puncture instrument of claim 6, wherein: the pressing plate (5-4) is provided with a through hole extending out of the rear end of the piston (5-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021491372.6U CN212466127U (en) | 2020-07-24 | 2020-07-24 | Puncture outfit capable of automatically adjusting specification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021491372.6U CN212466127U (en) | 2020-07-24 | 2020-07-24 | Puncture outfit capable of automatically adjusting specification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212466127U true CN212466127U (en) | 2021-02-05 |
Family
ID=74452629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021491372.6U Active CN212466127U (en) | 2020-07-24 | 2020-07-24 | Puncture outfit capable of automatically adjusting specification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212466127U (en) |
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2020
- 2020-07-24 CN CN202021491372.6U patent/CN212466127U/en active Active
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