CN115399841A - Air pressure self-locking puncture outfit - Google Patents
Air pressure self-locking puncture outfit Download PDFInfo
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- CN115399841A CN115399841A CN202210898808.0A CN202210898808A CN115399841A CN 115399841 A CN115399841 A CN 115399841A CN 202210898808 A CN202210898808 A CN 202210898808A CN 115399841 A CN115399841 A CN 115399841A
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- main body
- sleeve
- core cavity
- shell
- net
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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
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
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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
- A61B17/3474—Insufflating needles, e.g. Veress needles
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- Life Sciences & Earth Sciences (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses an air pressure self-locking puncture outfit, which comprises a main body and a sleeve, wherein the main body is movably connected with the sleeve; the main body comprises a main body outer shell, an air inlet joint, an inner shell, a core cavity, a net sleeve and an inner sleeve, wherein the inner shell, the core cavity, the net sleeve and the inner sleeve are arranged in the main body outer shell; the core cavity is sleeved in the inner shell, the net sleeve is connected with the core cavity, and the inner sleeve is clamped in the net sleeve; the main body shell is provided with an air inlet, and the air inlet joint is connected to the air inlet; the net cover is provided with a groove, a plurality of through holes which radially penetrate through the net cover are arranged in the groove, and a sealing structure or a sealing piece is arranged between the net cover and the main body shell so as to form an airflow channel among the air inlet joint, the main body shell, the net cover and the inner sleeve. The air flow channel of the invention leads the air into the core cavity, and the air forms air pressure self-locking in the core cavity, thereby avoiding the unbalance of the air pressure inside and outside the puncture part of the human body.
Description
Technical Field
The invention relates to the field of minimally invasive surgical instruments, in particular to an air pressure self-locking puncture outfit.
Background
At present, a puncture outfit (Trocar) as a minimally invasive surgical instrument is used for surgical operation to replace a scalpel, an opening is made on a human body, and then various medical instruments capable of penetrating through the puncture outfit are used for carrying out operation steps such as in-vivo examination, tissue burning, excision and the like. The operation mode can reduce the wound of the wounded, reduce the pain, shorten the time of lying in bed and rest after operation and reduce the recovered scar. These procedures are referred to as minimally invasive procedures because of their small wound size and rapid healing.
The sleeve of the puncture outfit is kept in the human body, and the medical apparatus passes through the puncture outfit and enters the human body to carry out the operation in the human body. In order to ensure the safety of the patient during the operation, the air pressure inside and outside the puncture part of the human body needs to be prevented from being unbalanced when the puncture device is left in the human body, so the tightness of the puncture device is very important. The inner cavity of the existing puncture outfit is often provided with a movable seal, the movable seal mainly comprises a plurality of crossed and overlapped mechanical elastic sheets to form a seal assembly, and the movable seal is suitable for forming a seal with a surgical instrument penetrating into the puncture outfit. However, such a seal may affect the flexibility of the surgical instrument due to the connection between the mechanical spring and the surgical instrument, and may cause contamination and blockage due to some tissue residues left on the mechanical spring when the surgical instrument is taken out through the puncture device.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an air pressure self-locking puncture outfit.
The technical scheme adopted by the invention for solving the problems is as follows:
a pneumatic self-locking puncture outfit comprises a main body and a sleeve, wherein the main body is movably connected with the sleeve;
the main body comprises a main body outer shell, an air inlet joint, an inner shell, a core cavity, a net sleeve and an inner sleeve, wherein the inner shell, the core cavity, the net sleeve and the inner sleeve are arranged in the main body outer shell; the core cavity is sleeved in the inner shell, the net sleeve is connected with the core cavity, and the inner sleeve is clamped in the net sleeve; the main body shell is provided with an air inlet, and the air inlet joint is connected to the air inlet;
the net cover is provided with a groove, a plurality of through holes which radially penetrate through the net cover are arranged in the groove, and a sealing structure or a sealing piece is arranged between the net cover and the main body shell so as to form an airflow channel among the air inlet joint, the main body shell, the net cover and the inner sleeve.
According to the air pressure self-locking puncture outfit provided by the invention, the air flow channel leads air into the core cavity, the air forms air pressure self-locking in the core cavity, if the air pressure in the puncture part of the human body is too low, the air led into the core cavity is supplemented into the human body, and if the air pressure in the puncture part of the human body is too high, the air in the human body and the air in the core cavity are both discharged into the atmosphere along the channel of the inner sleeve, so that the internal and external air pressure imbalance of the puncture part of the human body can be avoided.
Furthermore, the net sleeve is provided with an anti-skidding sealing groove for preventing the sealing structure or the sealing element from slipping.
Furthermore, a plurality of flexible diaphragms are arranged in the core cavity, are uniformly arranged in the shell of the core cavity in the circumferential direction, and form a through hole together in the surrounding center.
Therefore, the flexible membrane does not influence the flexibility of the surgical instrument and is favorable for gas retention to form air pressure self-locking; there is no resistance to passage of the surgical instrument through the access port in the core lumen, and tissue remnants can be easily removed without causing clogging.
Furthermore, a step is arranged in the net sleeve, so that a sealing position is formed at the joint of the net sleeve and the inner sleeve, and the inner sleeve is clamped tightly.
Further, the casing pipe comprises an outer pipe and an inner pipe, the outer pipe is sleeved on the inner pipe, and the outer pipe and the inner pipe are arranged between the outer pipe and the inner pipe.
Furthermore, the outer tube comprises a clamping pipe fitting for preventing the main body from expanding a puncture opening during deep puncture, a straight tube and a tube cover for clamping the inner tube; one end of the straight pipe is connected with the clamping pipe fitting, and the other end of the straight pipe is connected with the pipe cover.
Furthermore, the sleeve is provided with an inclined hole penetrating through the pipe cover and the inner pipe, the clamping pipe fitting is connected with the main body outer shell, and the inner pipe is connected with the inner shell, so that a gas loop is formed among the inner pipe, the inclined hole, the hollow structure between the outer pipe and the inner pipe, the gap between the main body outer shell and the inner shell, and the core cavity.
Therefore, the air loop is formed between the main body and the sleeve, which is beneficial to maintaining the air pressure balance of the air flow in the core cavity when the air pressure at the puncture part of the human body is unbalanced.
Furthermore, the main body further comprises an end cover connected with the main body shell and a silencing end penetrating through the end cover, and an operation channel is axially formed in the silencing end.
Further, the air pressure sensor is used for detecting air pressure changes.
Further, the air pressure sensor further comprises a control device for receiving the detection data of the air pressure sensor.
In conclusion, the air pressure self-locking puncture outfit has the following technical effects:
1) The air flow channel leads air into the core cavity, the air forms air pressure self-locking in the core cavity, if the air pressure in the puncture part of the human body is too low, the air led into the core cavity is supplemented into the human body, and if the air pressure in the puncture part of the human body is too high, the air in the human body and the air in the core cavity are discharged into the atmosphere along the channel of the inner sleeve, so that the imbalance of the air pressure inside and outside the puncture part of the human body can be avoided.
2) The flexible membrane does not influence the flexibility of the surgical instrument and is favorable for gas retention to form air pressure self-locking; there is no resistance to passage of the surgical instrument through the access port in the core lumen, and tissue remnants can be easily removed without causing clogging.
3) The air loop is formed between the main body and the sleeve, which is beneficial to the air flow in the core cavity to maintain the air pressure balance when the air pressure at the puncture part of the human body is unbalanced.
Drawings
FIG. 1 is an exploded view of the pneumatic self-locking puncture outfit according to the present invention;
FIG. 2 is a schematic cross-sectional view of the pneumatic self-locking puncture outfit of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an enlarged view of a portion B in fig. 2.
Description of reference numerals:
1. a main body; 11. a main body housing; 12. an air inlet joint; 13. an inner shell; 14. a core cavity; 141. a flexible membrane; 15. a net cover; 151. a groove; 152. a through hole; 153. an anti-slip seal groove; 16. an inner sleeve; 17. a sealing structure or seal; 18. an end cap; 19. a silencing end; 2. a sleeve; 21. an outer tube; 211. clamping the pipe fitting; 212. a straight pipe; 213. a tube cover; 22. an inner tube.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in figures 1-3, the invention provides a pneumatic self-locking puncture outfit, which comprises a main body 1 and a sleeve 2 used for puncturing the body of a patient and remaining, wherein the main body 1 is movably connected with the sleeve 2; the main body 1 comprises a main body outer shell 11, an air inlet joint 12, an inner shell 13, a core cavity 14, a net sleeve 15 and an inner sleeve 16, wherein the inner shell 13, the core cavity 14, the net sleeve 15 and the inner sleeve 16 are arranged in the main body outer shell 11; the core cavity 14 is sleeved in the inner shell 13, the net sleeve 15 is connected with the core cavity 14, and the inner sleeve 16 is clamped in the net sleeve 15; the main body shell 11 is provided with an air inlet, and the air inlet joint 12 is connected to the air inlet; the net cover 15 is provided with a groove 151, a plurality of through holes 152 which radially penetrate through the net cover 15 are formed in the groove 151, and a sealing structure or a sealing piece 17 is arranged between the net cover 15 and the main body shell 11 so as to form an air flow channel among the air inlet joint 12, the main body shell 11, the net cover 15 and the inner sleeve 16. The direction of the gas entering the core cavity 14 through the gas flow channel is opposite to the direction of the gas exhausted from the core cavity 14 through the inner sleeve 16, if the pressure in the human body is too low, the impulsive force of the gas entering the core cavity 14 from the gas inlet channel and flowing to the human body is larger than the impulsive force of the gas exhausted from the core cavity 14 through the inner sleeve 16, and at the moment, the gas missing in the human body can be supplemented, and the pressure in the human body is improved; if the air pressure in the human body is too high, the impulsive force of the air entering the core cavity 14 from the air inlet channel and flowing to the human body is smaller than the impulsive force of the air exhausted from the core cavity 14 through the inner sleeve 16, and the exhausted air is exhausted from the human body and the core cavity 14, so that the air pressure in the human body is reduced. The inside of the net sleeve 15 is provided with a step, so that a sealing position is formed at the joint of the net sleeve 15 and the inner sleeve 16, and the inner sleeve 16 is clamped.
Specifically, the net cover 15 is provided with an anti-slip sealing groove 153 for preventing the sealing structure or the sealing member 17 from slipping. A plurality of flexible diaphragms 141 are arranged in the core cavity 14, the flexible diaphragms 141 are uniformly arranged in the shell of the core cavity 14 in the circumferential direction, and the surrounding centers form a through opening together. The flexible membrane 141 does not influence the flexibility of the surgical instrument and is favorable for gas retention to form air pressure self-locking; there is no resistance to passage of the surgical instrument through the access port in the core cavity 14 and tissue remnants can be easily removed without clogging.
In the present embodiment, the casing 2 includes an outer tube 21 and an inner tube 22, and the outer tube 21 is sleeved on the inner tube 22 and between the outer tube 21 and the inner tube 22. The outer tube 21 comprises a clamping tube 211 for avoiding the expansion of the puncture hole of the main body 1 during deep puncture, a straight tube 212 and a tube cover 213 for clamping the inner tube 22; one end of the straight tube 212 is connected with the clamping tube 211, and the other end is connected with the tube cover 213. The casing 2 is provided with an inclined hole penetrating through the casing cover 213 and the inner pipe 22, the clamping pipe 211 is connected with the main body outer shell 11, the inner pipe 22 is connected with the inner shell 13, so that the main body 1 and the casing 2 form a whole, and the inner pipe 22, the inclined hole, the hollow structure between the outer pipe 21 and the inner pipe 22, the gap between the main body outer shell 11 and the inner shell 13 and the core cavity 14 form a gas loop. This gas circuit facilitates gas flow in the core cavity 14.
In addition, the main body 1 further comprises an end cover 18 connected with the main body housing 11 and a silencing end 19 penetrating through the end cover 18, and an operation channel is axially formed in the silencing end 19. The operation channel is a channel for the surgical instrument to enter and exit and operate. The noise elimination end 19 can eliminate noise generated during gas flowing, and avoid the noise in the operation process from influencing operating personnel or patients.
In this embodiment, an air pressure sensor for detecting air pressure change is further included, and the air pressure sensor is disposed in the inner casing 13 and near the inner tube 22. The gas pressure sensor also comprises a control device for receiving the detection data of the gas pressure sensor, and the control device can control the gas supply device to deliver gas.
When the puncture outfit is used, the air inlet connector 12 is connected with an air pipe of an air supply device, and before puncture is carried out, the control device controls the air supply device to ventilate the puncture outfit; the outer skin is penetrated through the inner tube 22 and the cannula 2 is pierced and fixed to the body as the case may be. At this moment, the inside and the outside of the puncture part of the human body are communicated, and if the puncture part is not limited, the gas in the human body can be leaked to the atmosphere, so that the body of a patient is damaged, and the operation can be influenced. The air supply device leads air into the core cavity 14 through an air flow channel formed in the main body 1 of the puncture outfit, the air forms air pressure self-locking in the core cavity 14, namely, the air pressure sensor detects the change of the air pressure, if the air pressure in the puncture part of the human body is too low, the air led into the core cavity 14 is supplemented into the human body, if the air pressure in the puncture part of the human body is too high, the air in the human body and the air in the core cavity 14 are discharged into the atmosphere along the channel of the inner sleeve 16, and therefore the imbalance of the air pressure inside and outside the puncture part of the human body can be avoided. The gas circuit formed between the body 1 and the sleeve 2 facilitates the flow of gas in the core chamber 14, facilitating the regulation of the gas pressure imbalance. The puncture outfit is provided with a channel for the surgical instrument to pass through, the surgical instrument can not enter or exit the puncture outfit with resistance, the flexibility can not be influenced, and the puncture outfit can be easily used for taking out the tissue residue without causing blockage.
In summary, the pneumatic self-locking puncture outfit provided by the invention has the following technical effects:
the air flow channel leads air into the core cavity 14, the air forms air pressure self-locking in the core cavity 14, if the air pressure in the puncture part of the human body is too low, the air led into the core cavity 14 is supplemented into the human body, and if the air pressure in the puncture part of the human body is too high, the air in the human body and the air in the core cavity 14 are discharged into the atmosphere along the channel of the inner sleeve 16, so that the imbalance of the air pressure inside and outside the puncture part of the human body can be avoided.
The flexible membrane 141 does not influence the flexibility of the surgical instrument, and is favorable for gas retention to form air pressure self-locking; there is no resistance to passage of the surgical instrument through the access port in the core cavity 14 and tissue remnants can be easily removed without causing clogging.
And (III) an air loop is formed between the main body 1 and the sleeve 2, which is beneficial to maintaining the air pressure balance of the air flow in the core cavity 14 when the air pressure at the puncture part of the human body is unbalanced.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (10)
1. The air pressure self-locking puncture outfit is characterized by comprising a main body (1) and a sleeve (2), wherein the main body (1) is movably connected with the sleeve (2);
the main body (1) comprises a main body outer shell (11), an air inlet joint (12), an inner shell (13) arranged in the main body outer shell (11), a core cavity (14), a net sleeve (15) and an inner sleeve (16); the core cavity (14) is sleeved in the inner shell (13), the net sleeve (15) is connected with the core cavity (14), and the inner sleeve (16) is clamped in the net sleeve (15); an air inlet is formed in the main body shell (11), and the air inlet connector (12) is connected to the air inlet;
be equipped with recess (151) on net cover (15), be equipped with a plurality of through-holes (152) that radially run through net cover (15) in recess (151), be equipped with seal structure or sealing member (17) between net cover (15) and main body cover (11) to form airflow channel between messenger air inlet connector (12), main body cover (11), net cover (15) and endotheca (16).
2. The pneumatic self-locking puncture outfit according to claim 1, wherein the net cover (15) is provided with an anti-slip sealing groove (153) for preventing the sealing structure or the sealing element (17) from slipping.
3. The pneumatic self-locking puncture outfit according to claim 2, characterized in that a plurality of flexible diaphragms (141) are arranged in the core cavity (14), the flexible diaphragms (141) are uniformly arranged in the shell of the core cavity (14) in the circumferential direction, and the surrounding centers form a through opening together.
4. The pneumatic self-locking puncture outfit according to claim 3, wherein the net sleeve (15) is provided with a step to form a sealing position at the joint of the net sleeve (15) and the inner sleeve (16) and clamp the inner sleeve (16).
5. A pneumatic self-locking puncture instrument according to any one of claims 1-4, wherein the cannula (2) comprises an outer tube (21) and an inner tube (22), the outer tube (21) is sleeved on the inner tube (22), and a hollow structure is formed between the outer tube (21) and the inner tube (22).
6. The pneumatic self-locking puncture outfit according to claim 5, wherein the outer tube (21) comprises a retaining tube (211) for preventing the main body (1) from expanding the puncture opening during deep puncture, a straight tube (212) and a tube cover (213) for retaining the inner tube (22); one end of the straight pipe (212) is connected with the clamping pipe piece (211), and the other end of the straight pipe is connected with the pipe cover (213).
7. The pneumatic self-locking puncture outfit according to claim 6, characterized in that the sleeve (2) is provided with an inclined hole penetrating through the tube cover (213) and the inner tube (22), the locking tube (211) is connected with the main body outer shell (11), the inner tube (22) is connected with the inner shell (13), so that the inner tube (22), the inclined hole, the hollow structure between the outer tube (21) and the inner tube (22), the gap between the main body outer shell (11) and the inner shell (13) and the core cavity (14) form a gas loop.
8. The pneumatic self-locking puncture outfit according to claim 1, wherein the main body (1) further comprises an end cover (18) connected with the main body housing (11) and a silencing end head (19) arranged through the end cover (18), and the silencing end head (19) is axially provided with an operation channel.
9. The pneumatic self-locking puncture instrument according to claim 1, further comprising a pneumatic sensor for detecting a change in pneumatic pressure.
10. The pneumatic self-locking puncture outfit according to claim 9, further comprising a control device for receiving the detection data of the pneumatic sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210898808.0A CN115399841A (en) | 2022-07-28 | 2022-07-28 | Air pressure self-locking puncture outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210898808.0A CN115399841A (en) | 2022-07-28 | 2022-07-28 | Air pressure self-locking puncture outfit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115399841A true CN115399841A (en) | 2022-11-29 |
Family
ID=84158863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210898808.0A Pending CN115399841A (en) | 2022-07-28 | 2022-07-28 | Air pressure self-locking puncture outfit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115399841A (en) |
-
2022
- 2022-07-28 CN CN202210898808.0A patent/CN115399841A/en active Pending
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