CN114470478B - Intracavity treatment catheter - Google Patents
Intracavity treatment catheter Download PDFInfo
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- CN114470478B CN114470478B CN202210229971.8A CN202210229971A CN114470478B CN 114470478 B CN114470478 B CN 114470478B CN 202210229971 A CN202210229971 A CN 202210229971A CN 114470478 B CN114470478 B CN 114470478B
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- 238000001514 detection method Methods 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000010412 perfusion Effects 0.000 abstract description 4
- 238000001802 infusion Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000003814 drug Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000003444 anaesthetic effect Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000001225 therapeutic effect Effects 0.000 description 4
- 206010046996 Varicose vein Diseases 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000013152 interventional procedure Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000659 thermocoagulation Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00589—Coagulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M2025/0001—Catheters; Hollow probes for pressure measurement
- A61M2025/0003—Catheters; Hollow probes for pressure measurement having an additional lumen transmitting fluid pressure to the outside for measurement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Otolaryngology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides an intracavity treatment catheter which comprises a catheter body and a control handle which are connected, wherein a treatment piece and a pressure detection assembly are arranged on the catheter body, the treatment piece is arranged at the end part of the catheter body, and the pressure detection assembly can slide along the extending direction of the catheter body; the pressure detection assembly comprises a pressure detection part and a pressure detection moving part which are connected, the pressure detection part is close to one end of the treatment part, the pressure detection moving part is connected with the control handle, and the control handle can start or pause the sliding of the pressure detection moving part. The invention can collect the actual pressure of the tissue in the cavity to different positions of the catheter, takes the actual pressure value as a guide for perfusion and treatment effect judgment, shortens the learning curve of doctors, and promotes standardization and standardization of treatment.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an intracavity treatment catheter.
Background
In many cases, it is necessary to infuse the surrounding tissue of the body with a medical fluid during the endoluminal treatment to protect the surrounding tissue or to bring the luminal tissue into close proximity with the treatment apparatus. For example, medical fluid infusion may be required for interventional procedures using radio frequency and laser interventional catheters. One typical application is the injection of anesthetic tumefaction fluid into peripheral tissues of the veins of the lower limb during the course of varicose vein thermocoagulation treatment of the lower limb using a radio frequency host and catheter (hereinafter referred to as the varicose vein radio frequency treatment system). On the one hand, under the compression of the anesthetic swelling liquid, the wall of the diseased blood vessel is tightly attached to the radio frequency catheter, and blood in the blood vessel is discharged, so that the efficient transfer of heat is ensured, and the effectiveness of treatment is ensured. Meanwhile, the anesthetic swelling liquid can isolate the treatment part from surrounding normal tissues, and plays a role in protecting the normal tissues. Furthermore, the anesthetic swelling liquid can also play a role in anesthesia, and improve the feeling of patients.
At present, the varicose vein radio frequency treatment system does not detect the pressure of a blood vessel to a radio frequency catheter, and the drug infusion system does not detect the pressure of an in-vivo puncture outfit. Thus, rapid recordings and dosages of drug infusions are often held by the experience of the practitioner himself. Then, problems may occur with too high a rate, overdosing or too low a dose, especially for those who have just touched the relevant art.
Disclosure of Invention
In order to solve the problems, the invention discloses a novel intracavity therapeutic catheter which is provided with a movable pressure detection device, detects the pressure of a cavity tissue wall on the therapeutic catheter, and feeds back to external therapeutic equipment as a reference of perfusion effect so as to guide medicine perfusion. Meanwhile, the pressure parameter can be used as an immediate evaluation reference of the treatment effect.
The invention provides an intracavity treatment catheter which comprises a tube body and a control handle which are connected, wherein a treatment piece and a pressure detection assembly are arranged on the tube body, the treatment piece is arranged at the end part of the tube body, and the pressure detection assembly can slide along the extending direction of the tube body; the pressure detection assembly comprises a pressure detection part and a pressure detection moving part which are connected, the pressure detection part is close to one end of the treatment part, the pressure detection moving part is connected with the control handle, and the control handle can start or pause the sliding of the pressure detection moving part.
As described above, the intraluminal treatment catheter of the present invention has the following beneficial effects:
Currently, the dosage, rate and pressure value to be achieved for infusion are determined by the experience of the operator, and there is a possibility that the rate may be too high, the dosage may be too high or too low, or the pressure value of the catheter treatment segment may be insufficient. To achieve accurate infusion therapy, doctors need longer learning, and standardization of therapy are difficult to achieve. The invention can collect the actual pressure of the tissue in the cavity to different positions of the catheter, takes the actual pressure value as a guide for perfusion and judging the treatment effect, is beneficial to solving the problems, shortens the learning curve of doctors and promotes standardization and standardization of treatment.
Drawings
Fig. 1 shows a block diagram of an intraluminal treatment catheter according to an embodiment of the present invention.
Fig. 2 shows a block diagram of the end of the body of an intraluminal treatment catheter according to an embodiment of the present invention.
Fig. 3 is a block diagram of a tube body of an intraluminal treatment catheter according to an embodiment of the present invention (a portion of the length of the tube body is not fully shown).
Fig. 4 shows a block diagram of the control handle (without the upper cover) of an intraluminal treatment catheter according to an embodiment of the present invention.
Fig. 5 shows a top view (without the upper cover) of the control handle of an intraluminal treatment catheter according to an embodiment of the present invention.
Fig. 6a shows an enlarged view of a portion of the junction of the body and control handle of an intraluminal treatment catheter in accordance with an embodiment of the present invention.
Fig. 6b shows a further enlarged view of the junction of the body and control handle of an intraluminal treatment catheter according to an embodiment of the present invention.
Fig. 6c shows a partial cross-sectional view of the junction of the body and control handle of an intraluminal treatment catheter in accordance with an embodiment of the present invention.
Fig. 7a shows a locking mechanism operation (clamped state) of an endoluminal treatment catheter in accordance with an embodiment of the invention.
Fig. 7b shows a locking mechanism operation (relaxed state) of an endoluminal treatment catheter according to an embodiment of the invention.
Fig. 8a shows an enlarged partial working view (clamped state) of the locking mechanism of the intraluminal treatment catheter according to an embodiment of the present invention.
Fig. 8b shows an enlarged partial working view (relaxed state) of the locking mechanism of the intraluminal treatment catheter according to an embodiment of the present invention.
Fig. 9 shows an enlarged partial working view (relaxed state) of the locking mechanism of an endoluminal treatment catheter according to another embodiment of the invention.
Fig. 10a shows an enlarged partial working view (clamped state) of the locking mechanism of an endoluminal treatment catheter according to another embodiment of the invention.
Fig. 10b shows an enlarged partial working view (relaxed state) of the locking mechanism of an endoluminal treatment catheter according to another embodiment of the invention.
Fig. 11 shows an enlarged partial working view (clamped state) of the locking mechanism of the intraluminal treatment catheter according to another embodiment of the present invention.
Fig. 12 shows a diagram of the motion of the pressure sensing assembly of the intraluminal treatment catheter according to an embodiment of the present invention (the pressure sensing member is located at the end of the body).
Fig. 13 is a diagram showing a movement state of the pressure detecting unit of the intraluminal treatment catheter according to an embodiment of the present invention (the pressure detecting member is located at the middle of the tube body).
Fig. 14 shows a diagram of the motion of the pressure sensing assembly of the intraluminal treatment catheter according to an embodiment of the present invention (the pressure sensing member is located at the tail of the tube body).
Description of element reference numerals
10. Pipe body
11. Therapeutic element
12. Pressure detection assembly
13. Pressure detecting member
14. Pressure detection moving part
141. Pressure detecting piece connecting piece
142. Connecting shaft of pressure detection part
143. Guide block of pressure detection part
15. Catheter head
20. Control handle
21. Pressure detection assembly connector
211. Guide groove of pressure detection part
22. Locking mechanism
221. Lock block
2211. Extrusion zone
222. Locking guide rod
223. Locking operating lever
2231. Locking contact block
224. Elastic piece
23. Magnetic force control switch
3. Cable with improved heat dissipation
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1 to 14. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1, an intraluminal treatment catheter according to an embodiment of the present invention includes a tube body 10 and a control handle 20 connected to each other, wherein a treatment member 11 and a pressure detection assembly 12 are disposed on the tube body 10, the treatment member 11 is disposed at an end portion of the tube body 10, and the pressure detection assembly 12 is capable of sliding along an extending direction of the tube body 10; the pressure detecting assembly 12 comprises a pressure detecting member 13 and a pressure detecting moving member 14 which are connected, the pressure detecting member 13 is close to one end of the treating member 11, the pressure detecting moving member 14 is connected with the control handle 20, and the control handle 20 can start or stop the sliding of the pressure detecting moving member 14.
The infusion rate and the dosage of the liquid medicine are intelligent, so that larger errors of the infusion rate and the dosage caused by insufficient experience of operators are avoided, and the standardization of the liquid medicine infusion in the intra-cavity clinical operation process is promoted. The pressure detection device can move along the axial direction, can detect a plurality of positions in the pouring process, and can better master the pouring effect. Meanwhile, the pressure parameter can be used as an immediate evaluation reference of the treatment effect.
The treatment member 11 may be a radio frequency electrode or a coil, and the radio frequency current heats up after passing through the treatment member, thereby achieving the effect of thermal coagulation treatment.
In one embodiment, as shown in fig. 2, one end of the tube body is a catheter head 15. The surface of the catheter head is a curved surface, so that an object to be affected is prevented from being scratched in the puncture process or in the cavity. The catheter head also plays a limiting role on the treatment piece.
In one embodiment, as shown in fig. 3, the pressure detecting moving member 14 includes a pressure detecting member coupling member 141, a pressure detecting member coupling shaft 142, and a pressure detecting member guide block 143, which are sequentially connected; the pressure detecting member connecting member 141 is connected to the pressure detecting member, and the pressure detecting member guide block 143 is connected to the control handle 20.
In one embodiment, the direction of extension of the pressure detecting moving member 14 is the same as the direction of extension of the tube 10.
In one embodiment, the pressure sensing element 13, the pressure sensing element coupling 141, the pressure sensing element coupling shaft 142, and the pressure sensing element guide block 143 are rigidly coupled.
Further, a magnetic member is disposed in the pressure detecting member 141. The magnetic piece can be controlled by an external magnetic device, so that the contactless guiding control pressure detection component slides along the extending direction of the pipe body.
Optionally, the magnetic element is a permanent magnet or an electromagnet. As shown in fig. 4 or fig. 5, when the magnetic member is an electromagnet, a magnetic control switch 23 is further disposed in the control handle, and the magnetic control switch 23 is electrically connected with the magnetic member. It is possible to control whether or not the magnetic member is excited to have magnetism.
In one embodiment, as shown in fig. 4, 6a, 6b and 6c, a pressure detecting component connector 21 is disposed in the control handle 20, a pressure detecting component guide groove 211 is disposed on the pressure detecting component connector 21, and the pressure detecting component guide block 143 can slide in the pressure detecting component guide groove 211.
In one embodiment, as shown in fig. 7 a-11, a locking mechanism 22 is further provided on the control handle 20, where the locking mechanism 22 can start or stop the sliding of the pressure detecting member guide block 143.
Preferably, the groove wall of the pressure detecting element guide groove 211 is made of an elastic material, and the locking mechanism 22 can press the outer wall of the pressure detecting element guide groove 211 so as to start or stop the sliding of the pressure detecting element guide block 143.
In one embodiment, as shown in fig. 7a to 11, the locking mechanism 22 includes a locking block 221, a locking guide rod 222, and a locking operation rod 223, where the locking block 221 is slidably connected to the locking guide rod 222, the locking operation rod 223 can open or pause the movement of the locking block 221, and the locking block 221 has a pressing area 2211, and the pressing area 2211 is in contact with the outer wall of the pressure detecting member guide groove 211; for pressing the pressure detecting member guide groove 211.
The pressing area 2211 is movable in a direction perpendicular to the extending direction of the pressure detecting element guide groove 211
In one embodiment, as shown in fig. 7 a-11, the locking guide bar 222 and/or the locking lever 223 are provided with an elastic member 224. The elastic member 224 is used to provide a pre-tightening force to the locking device, so that the locking block can be prevented from moving too severely due to the movement of the locking operation rod, and the control of the pressure detecting member guide block 143 is prevented from being lost due to the excessive displacement.
In one embodiment, the length of the pressing area is the same as the length and the extension direction of the guide groove. So that the lock can be achieved regardless of the movement of the pressure detecting guide block to any position.
In one embodiment, as shown in fig. 7a, 7b, 8a, 8b and 9, the locking lever is fixedly connected to the locking block or is of integral construction. The locking operation rod is connected with the shell of the control handle through threads, and one end of the locking operation rod extends out of the shell of the control handle 20. When the outside rotates the locking operation rod, the locking operation rod moves along the extending direction of the locking guide rod, and then the locking operation rod drives the guide block to move along the extending direction of the locking guide rod, so that the extrusion area of the guide block lifts or extrudes the pressure detection piece guide groove 221.
As shown in fig. 7a and 7b, 12, 13 and 14, when the locking lever is at a certain angle, the pressing area 2211 of the locking block is far away from the pressure detecting member guide groove 221, and is in a released state, at this time, the movement of the connecting member can be controlled by the external magnetic member, and the locking lever is rotated after being moved to the target position, so that the pressing area of the locking block approaches the guide groove 221 to press the guide block, thereby locking the position of the pressure detecting assembly.
In one embodiment, as shown in fig. 10a or fig. 10b, fig. 12, fig. 13 and fig. 14, one end of the locking lever 223 is provided with a locking contact block 2231, and the locking contact block 2231 is in contact with the locking block 221 and can slide relative to the locking block 221.
Optionally, the vertical height of the contact surface between the locking contact block and the locking block is variable. For example, as shown in fig. 10a and 10b, the locking contact block 2231 is wedge-shaped. When the low side of the locking contact block wedge structure is in contact with the locking block, the locking mechanism is far away from the pressure detection piece guide groove 221 and is in a relaxed state, at this time, the connecting piece can be controlled to move through the external magnetic component, and the operating handle of the operating rod is pushed after the connecting piece moves to the target position, so that the high side of the locking contact block wedge structure is in contact with the locking block, the extrusion area of the locking block is close to the guide groove 221, and the guide block is pressed, so that the position of the pressure detection assembly is locked.
In one embodiment, as shown in fig. 11, 12, 13 and 14, the locking operation rod is an electric thruster, and a spring is arranged on the guide rod to push the locking block so that the pushing rod of the electric thruster is always in contact with the locking block. When the pushing rod of the electric propeller is in a retracted position, the locking mechanism is far away from the guide groove 221 of the pressure detection part and is in a relaxed state, at this time, the connecting part can be controlled to move through the external magnetic part, and the electric propeller is electrified after the electric propeller moves to a target position, so that the extrusion area of the locking block is close to the guide groove 221 to compress the guiding block, and the position of the pressure detection assembly is locked.
In one embodiment, as shown in fig. 7 a-11, the pressure sensing component 12 and/or the pressure sensing component connector 21 are at least partially nested within the sidewall of the tubular body.
In one embodiment, the pressure detecting member and the pressure detecting connecting member are annular. Is nested on the side wall of the pipe body.
Alternatively, the number of the pressure detecting member connecting shaft 142 and the pressure detecting member guide block 143 is 1 or more.
In one embodiment, the pressure sensing component connection 21 is a transparent material. The position of the guide block of the pressure detection part is conveniently observed, so that the position of the pressure detection part is calculated.
In one embodiment, the pressure detecting assembly 12 is further provided with a position detecting member of the pressure detecting member. For detecting the position of the pressure detecting member. In a further variation, a detection device is arranged at the position of the window corresponding to the guide block of the pressure detection part, and the position is detected and then transmitted to the corresponding treatment equipment.
Optionally, the pressure detection part guide block uses an electric conductor or is coated with a power-off material on the outer surface, and the surface of the guide groove is paved with an electric conduction part or is coated with an electric conduction material, so that the position of the in-vivo catheter pressure detection part is determined according to the size of loop impedance.
In one embodiment, a detection device (such as a pressure detection member) is installed on the force transmission path of the locking device to detect the locking force and determine the state of the locking mechanism.
The pressure detecting member of the present invention may be a force sensor. The force sensor can be a miniature force sensor of the HBM C11 series, for example.
The pressure detection part, the magnetic force control switch and other electronic parts are connected with the outside through a cable 3.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. The intracavity treatment catheter is characterized by comprising a tube body (10) and a control handle (20) which are connected, wherein a treatment piece (11) and a pressure detection assembly (12) are arranged on the tube body (10), the treatment piece (11) is arranged at the end part of the tube body (10), and the pressure detection assembly (12) can slide along the extending direction of the tube body (10); the pressure detection assembly (12) comprises a pressure detection piece (13) and a pressure detection moving piece (14) which are connected, the pressure detection piece (13) is close to one end of the treatment piece (11), the pressure detection moving piece (14) is connected with the control handle (20), and the control handle (20) can start or pause the sliding of the pressure detection moving piece (14); the pressure detection moving part (14) comprises a pressure detection part connecting part (141), a pressure detection part connecting shaft (142) and a pressure detection part guide block (143) which are connected in sequence; the pressure detection piece connecting piece (141) is connected with the pressure detection piece, and the pressure detection piece guide block (143) is connected with the control handle (20).
2. The endoluminal treatment catheter according to claim 1, wherein a magnetic element is provided in the pressure detecting member coupling member (141).
3. The endoluminal treatment catheter according to claim 1, wherein a pressure detection assembly connector (21) is provided in the control handle (20), wherein a pressure detection member guide groove (211) is provided on the pressure detection assembly connector (21), and wherein the pressure detection member guide block (143) is slidable in the pressure detection member guide groove (211).
4. An endoluminal treatment catheter according to claim 3, wherein the control handle (20) is further provided with a locking mechanism (22), the locking mechanism (22) being capable of opening or suspending sliding of the pressure detecting member guide block (143).
5. The endoluminal treatment catheter according to claim 4, wherein the wall of the pressure detecting member guide groove (211) is of an elastic material, and the locking mechanism (22) is capable of pressing the outer wall of the pressure detecting member guide groove (211) to thereby open or pause the sliding of the pressure detecting member guide block (143).
6. The endoluminal treatment catheter according to claim 5, wherein the locking mechanism (22) comprises a locking block (221), a locking guide bar (222) and a locking lever (223), the locking block (221) being slidably connected to the locking guide bar (222), the locking lever (223) being capable of opening or suspending the movement of the locking block (221), the locking block (221) having a compression zone (2211), the compression zone (2211) being in contact with the outer wall of the pressure detector guide groove (211); for pressing the pressure detecting member guide groove (211).
7. The endoluminal treatment catheter according to claim 6, wherein the locking guide bar (222) and/or locking lever (223) is provided with an elastic member (224).
8. The endoluminal treatment catheter according to claim 1, wherein the pressure detection assembly (12) and/or the pressure detection assembly connector (21) are at least partially nested in a side wall of the tube body.
9. The endoluminal treatment catheter according to claim 1, wherein the pressure detection assembly (12) is further provided with a position detection member for the pressure detection member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229971.8A CN114470478B (en) | 2022-03-09 | 2022-03-09 | Intracavity treatment catheter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210229971.8A CN114470478B (en) | 2022-03-09 | 2022-03-09 | Intracavity treatment catheter |
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| Publication Number | Publication Date |
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| CN114470478A CN114470478A (en) | 2022-05-13 |
| CN114470478B true CN114470478B (en) | 2024-04-23 |
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| CN202210229971.8A Active CN114470478B (en) | 2022-03-09 | 2022-03-09 | Intracavity treatment catheter |
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| CN215504756U (en) * | 2021-06-09 | 2022-01-14 | 广西医科大学第一附属医院 | Uterine cavity perfusion device |
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| US9642534B2 (en) * | 2009-09-11 | 2017-05-09 | University Of Virginia Patent Foundation | Systems and methods for determining location of an access needle in a subject |
| US9539090B2 (en) * | 2014-01-16 | 2017-01-10 | Cook Medical Technologies Llc | Transaortic valve access device |
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| CN106308920A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation catheter |
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| CN215504756U (en) * | 2021-06-09 | 2022-01-14 | 广西医科大学第一附属医院 | Uterine cavity perfusion device |
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