A thoracico-abdominal puncture point exudate collection device
By designing a device for collecting effusion from thoracentesis and laparotomy puncture sites, and utilizing a shell, a separator ring, and a clamping mechanism to collect effusion, the problem of catheter dislodgement caused by effusion from puncture sites was solved, achieving effective collection of effusion and stable fixation of the drainage tube.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINESE PEOPLES LIBERATION ARMY ARMY SPECIAL MEDICAL CENTER
- Filing Date
- 2023-11-16
- Publication Date
- 2026-04-28
AI Technical Summary
In the existing technology, unplanned extubation after thoracentesis and paracentesis often occurs due to catheter dislodgement caused by exudate at the puncture site, mainly because the dressing is loose and cannot effectively collect the exudate.
A device for collecting exudate from thoracentesis and peritoneal puncture sites is designed, comprising a housing, a separator ring, and a clamping mechanism. By fixing the housing to the drainage tube and designing the separator ring, the exudate is collected and the dressing is prevented from loosening. The control mechanism generates negative pressure for fixation, reducing exudate contamination.
It effectively prevents exudate from wetting the dressing, reduces exudate contamination, improves the fixation of the drainage tube, reduces the probability of exudate, and prevents the catheter from dislodging.
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Figure CN117379665B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of thoracotomy and abdominal puncture technology, and specifically to a device for collecting exudate from thoracotomy and abdominal puncture sites. Background Technology
[0002] In clinical practice, closed thoracic and abdominal drainage surgery is frequently performed on patients with pleural or peritoneal effusion, hematoma, pyostomy, or pneumothorax to drain the fluid and alleviate their suffering. This procedure requires creating a surgical channel in the thoracic or abdominal cavity and placing a drainage tube. Generally, the procedure involves: incising the skin, using hemostatic forceps to separate the subcutaneous tissue, muscles, and fascia, and then using the tip of the hemostatic forceps to puncture the pleural or peritoneal membrane to create a penetrating puncture point. The drainage tube is then inserted into this puncture point.
[0003] After thoracentesis and paracentesis, unplanned catheter dislodgement often occurs due to various reasons. One common cause is that leakage at the puncture site loosens the first dressing, causing the catheter to dislodge. Summary of the Invention
[0004] In view of the above-mentioned problems existing in the prior art, the technical problem to be solved by the present invention is:
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a device for collecting exudate from thoracotomy and peritoneal puncture points, comprising:
[0006] The housing has an opening at one end, and a first dressing is provided at the opening of the housing. The other end of the housing has a connection port for the drainage tube to pass through.
[0007] A partition ring is disposed inside the housing. One end of the partition ring is on the same plane as the opening of the housing, and the other end of the partition ring is fitted with the inner sidewall of the housing and fixedly connected to the housing.
[0008] The clamping mechanism can clamp the drainage tube inside the housing.
[0009] In this invention, a drainage tube is inserted into the housing through a connector and then exits through the opening of the housing. The drainage tube is then placed into the puncture point, and a clamping mechanism is used to fix the housing and the drainage tube in place. The housing is then attached to the skin using a first dressing to secure the drainage tube. Simultaneously, the end of a separating ring near the opening of the housing abuts against the skin to separate the puncture point from the first dressing, allowing exudate from the puncture point to flow into the housing for collection through the separating ring. This effectively prevents the exudate from wetting the first dressing and causing it to loosen, and also collects the exudate, reducing contamination.
[0010] Preferably, the separating ring includes a mounting ring and a rubber ring; the mounting ring is coaxially fixed inside the housing; one end of the rubber ring is fixedly mounted inside the housing via the mounting ring, the rubber ring is coaxially arranged with the housing, and there is a certain gap between the rubber ring and the housing. The mounting ring creates a certain gap between the rubber ring and the inner wall of the housing, thus creating a certain gap between the first dressing and the rubber ring, effectively preventing seepage through the rubber ring onto the first dressing.
[0011] Preferably, it also includes a sliding sleeve and a control mechanism; the rubber ring is frustum-shaped, the large end of the rubber ring is fixedly mounted on the mounting ring, the sliding sleeve is coaxially slidably mounted inside the housing, and the outer ring of the sliding sleeve slides against the inner sidewall of the housing, and the inner ring of the sliding sleeve slides against the outer sidewall of the rubber ring; the control mechanism can drive the sliding sleeve to move in the axial direction of the housing, and the mounting ring is provided with a vent hole.
[0012] The control mechanism drives the sliding sleeve to generate negative pressure, which in turn draws the shell onto the patient's skin to further prevent it from falling off. As the sliding sleeve slides, it causes the small end of the rubber ring to retract inward, which in turn causes the skin it contacts to retract inward. This slightly changes the size of the puncture point, allowing the skin at the puncture point to better fit the drainage tube, thereby reducing the gap between the puncture point and the drainage tube and lowering the probability of leakage.
[0013] Preferably, a second patch is provided at the small end of the rubber ring. The second patch effectively prevents gaps from forming between the rubber ring and the skin when the rubber ring deforms.
[0014] Preferably, a sealing ring is coaxially fixedly installed on the inner ring of the sliding sleeve. The inner ring of the sliding sleeve abuts against the outer side of the rubber ring through the sealing ring, thereby effectively preventing gaps from forming between the rubber ring and the sliding sleeve when the rubber ring deforms.
[0015] Preferably, the clamping mechanism includes multiple clamping plates arranged in a circular array around the axis of the housing. The clamping plates are slidably mounted within the housing along its radial direction, and the control mechanism can drive the multiple clamping plates to slide. The control mechanism moves the multiple clamping plates from various directions toward the drainage tube, thereby clamping the drainage tube and fixing it in place.
[0016] Preferably, the control mechanism includes a connecting rod, a connecting ring, a rotating plate, a slider, a gear ring, a gear, a knob, and a limiting component. The connecting rod is arranged along the axial direction of the housing, one end of which slides through the mounting ring and is fixedly connected to the sliding sleeve, and the other end of which is fixedly connected to the connecting ring. The rotating plate corresponds one-to-one with multiple clamping plates, one end of which is hinged to the connecting ring, and the other end of which is hinged to the clamping plate. The gear ring is coaxially and rotatably installed inside the housing, and multiple sliding grooves are formed on the gear ring. The multiple sliding grooves are arranged in a circular array with the axis of the housing as the center, and the sliding grooves are inclined. Each sliding groove corresponds one-to-one with multiple clamping plates, and a slider is fixedly installed on each clamping plate. The slider is slidably disposed in the sliding groove. The gear meshes with the gear ring. The knob is located on the outside of the housing and is coaxially and fixedly connected to the gear through a connecting shaft. The limiting component can restrict the rotation of the gear. Rotating the knob can drive the multiple clamping plates to slide and clamp the drainage tube, and drive the sliding sleeve to move along the axial direction of the housing.
[0017] Preferably, the limiting member is an insert plate, which is slidably installed inside the housing along the radial direction of the gear. One end of the insert plate can be inserted into the tooth groove of the gear, and the other end of the insert plate slides through to the outside of the housing. By inserting the insert plate into the tooth groove of the gear, the rotation of the gear can be restricted, preventing the gear from rotating and causing the clamping mechanism to loosen.
[0018] Preferably, a rubber ring is installed at the connection port. The rubber ring increases the sealing between the housing and the drainage tube.
[0019] Compared with the prior art, the present invention has at least the following advantages:
[0020] 1. Insert the drainage tube into the housing through the connector and out through the opening of the housing. Then, place the drainage tube into the formed puncture point. Control the clamping mechanism to fix the housing and the drainage tube. Then, use the first dressing to stick the housing to the skin to fix the drainage tube. At the same time, the end of the separator ring near the opening of the housing abuts against the skin to separate the puncture point on the skin from the first dressing, so that the exudate from the puncture point flows into the housing through the separator ring for collection. This effectively prevents the exudate from wetting the first dressing and causing it to loosen, and also collects the exudate, reducing the contamination of the exudate.
[0021] 2. The control mechanism drives the sliding sleeve to generate negative pressure, which is used to suction the shell onto the patient's skin to further prevent the shell from falling off. When the sliding sleeve slides, it causes the small end of the rubber ring to retract inward, which in turn causes the skin it contacts to retract inward. This slightly changes the size of the puncture point, allowing the skin at the puncture point to better fit the drainage tube, thereby reducing the gap between the puncture point and the drainage tube and lowering the probability of leakage. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0023] Figure 1 This is a perspective view of a device for collecting exudate from thoracotomy and abdominal puncture sites provided in an embodiment of the present invention.
[0024] Figure 2 This is a cross-sectional view of a thoracoabdominal puncture site exudate collection device provided in an embodiment of the present invention.
[0025] Figure 3 This is a cross-sectional view of the rubber ring and sliding sleeve provided in an embodiment of the present invention.
[0026] Figure 4 This is a partial perspective view of the control mechanism provided in an embodiment of the present invention.
[0027] Figure 5 This is a partial structural diagram of the clamping mechanism and control mechanism provided in the embodiments of the present invention.
[0028] Reference numerals: 1-Housing, 11-First applicator, 12-Connecting port, 13-Rubber ring, 2-Separating ring, 21-Mounting ring, 22-Rubber ring, 23-Ventilation hole, 24-Second applicator, 3-Clamping mechanism, 31-Clamping plate, 4-Sliding sleeve, 41-Sealing ring, 5-Control mechanism, 51-Connecting rod, 52-Connecting ring, 53-Rotating plate, 54-Slider, 55-Gear ring, 56-Gear, 57-Knob, 58-Limiting element, 59-Slide groove, 6-Drainage tube. Detailed Implementation
[0029] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.
[0030] In this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0032] See Figures 1-3 The present invention provides an embodiment of a device for collecting exudate from thoracotomy and peritoneal puncture points, comprising: a housing 1, a separating ring 2, and a clamping mechanism 3; one end of the housing 1 is open, and a first dressing 11 is provided at the opening of the housing 1, and the other end of the housing 1 is provided with a connection port 12 for a drainage tube 6 to pass through; further, a rubber ring 13 is installed at the connection port 12; the rubber ring 13 increases the sealing between the housing 1 and the drainage tube 6; the separating ring 2 is disposed inside the housing 1, one end of the separating ring 2 is on the same plane as the opening of the housing 1, and the other end of the separating ring 2 is engaged with the inner sidewall of the housing 1 and fixedly connected to the housing 1; the clamping mechanism 3 can clamp the drainage tube 6 inside the housing 1.
[0033] In practice, the drainage tube 6 is inserted into the housing 1 through the connection port 12 and then out through the opening of the housing 1. The drainage tube 6 is then placed into the puncture point. The clamping mechanism 3 is used to fix the housing 1 and the drainage tube 6. The housing 1 is then attached to the skin through the first dressing 11 to fix the drainage tube 6. At the same time, the end of the separator ring 2 near the opening of the housing 1 abuts against the skin to separate the puncture point on the skin from the first dressing 11, allowing the exudate from the puncture point to flow into the housing 1 for collection through the separator ring 2. This effectively prevents the exudate from wetting the first dressing 11 and causing it to loosen, and also collects the exudate, reducing contamination.
[0034] See Figures 1-3In other embodiments, the separator ring 2 includes a mounting ring 21 and a rubber ring 22; the mounting ring 21 is coaxially fixed inside the housing 1; one end of the rubber ring 22 is fixedly mounted inside the housing 1 via the mounting ring 21, the rubber ring 22 is coaxially arranged with the housing 1, and there is a certain gap between the rubber ring 22 and the housing 1. The mounting ring 21 creates a certain gap between the rubber ring 22 and the inner wall of the housing 1, and also creates a certain gap between the first dressing 11 and the rubber ring 22, thereby effectively preventing exudate from seeping through the rubber ring 22 onto the first dressing 11.
[0035] See Figures 1-5 In other embodiments, it also includes a sliding sleeve 4 and a control mechanism 5; the rubber ring 22 is frustoconical, the large end of the rubber ring 22 is fixedly mounted on the mounting ring 21, the sliding sleeve 4 is coaxially slidably mounted inside the housing 1, and the outer ring of the sliding sleeve 4 slides against the inner side wall of the housing 1, and the inner ring of the sliding sleeve 4 slides against the outer side wall of the rubber ring 22; the control mechanism 5 can drive the sliding sleeve 4 to move in the axial direction of the housing 1, and the mounting ring 21 is provided with a vent hole 23.
[0036] In practice, the opening of the shell 1 is brought into contact with the patient's skin via the first dressing 11, causing the small end of the rubber ring 22 to also contact the skin. This places the rubber ring 22 around the puncture point, creating a sealed space through the patient's skin, shell 1, rubber ring 22, and sliding sleeve 4. Then, the control mechanism 5 is activated, causing the sliding sleeve 4 to slide a certain distance away from the skin, generating negative pressure within the sealed space. This negative pressure then draws the shell 1 onto the patient's skin for further... To prevent the housing 1 from falling off, and as the sliding sleeve 4 slides, since the rubber ring 22 is truncated cone-shaped, under the action of the outer inclined surface of the rubber ring 22, the sliding sleeve 4 causes the small end of the rubber ring 22 to deform toward the puncture point, causing the small end of the rubber ring 22 to retract inward. The small end of the rubber ring 22 then causes the skin it contacts to retract inward, thereby slightly changing the size of the puncture point. This allows the skin at the puncture point to better fit with the drainage tube 6, thereby reducing the gap between the puncture point and the drainage tube 6 and reducing the probability of leakage.
[0037] See Figures 1-5 In other embodiments, a second patch 24 is provided at the small end of the rubber ring 22. The second patch 24 effectively prevents gaps from forming between the rubber ring 22 and the skin when the rubber ring 22 deforms. Furthermore, a sealing ring 41 is coaxially fixedly installed on the inner ring of the sliding sleeve 4. The inner ring of the sliding sleeve 4 abuts against the outer side of the rubber ring 22 through the sealing ring 41, thereby effectively preventing gaps from forming between the rubber ring 22 and the sliding sleeve 4 when the rubber ring 22 deforms.
[0038] See Figures 1-5In other embodiments, the clamping mechanism 3 includes multiple clamping plates 31, which are arranged in a circular array around the axis of the housing 1. The clamping plates 31 are slidably installed inside the housing 1 along the radial direction of the housing 1, and the control mechanism 5 can drive the multiple clamping plates 31 to slide. In specific implementation, when the drainage tube 6 is inserted into the housing 1 through the connection port 12, the control mechanism 5 is activated. The control mechanism 5 drives the multiple clamping plates 31 to move towards the drainage tube 6 from various directions, thereby clamping the drainage tube 6 and fixing the drainage tube 6.
[0039] See Figures 1-5 In another embodiment, the control mechanism 5 includes a connecting rod 51, a connecting ring 52, a rotating plate 53, a slider 54, a gear ring 55, a gear 56, a knob 57, and a limiting member 58; the connecting rod 51 is arranged along the axial direction of the housing 1, one end of the connecting rod 51 slides through the mounting ring 21 and is fixedly connected to the sliding sleeve 4, and the other end of the connecting rod 51 is fixedly connected to the connecting ring 52; the rotating plate 53 corresponds one-to-one with a plurality of clamping plates 31, one end of the rotating plate 53 is hinged to the connecting ring 52, and the other end of the rotating plate 53 is hinged to the clamping plate 31; The gear ring 55 is coaxially and rotatably installed inside the housing 1. The gear ring 55 has multiple sliding grooves 59, which are arranged in a circular array with the axis of the housing 1 as the center. The sliding grooves 59 are inclined and correspond one-to-one with multiple clamping plates 31. Each clamping plate 31 is fixedly installed with a slider 54, which slides in the sliding groove 59. The gear 56 meshes with the gear ring 55. The knob 57 is located on the outside of the housing 1 and is coaxially and fixedly connected to the gear 56 through a connecting shaft. The limiting member 58 can limit the rotation of the gear 56.
[0040] In practice, rotating knob 57 drives gear 56 to rotate via a rotating shaft. Gear 56 drives gear ring 55, which meshes with it, to rotate. Gear ring 55 then drives slider 54 to move radially in the housing 1 via inclined groove 59. This causes multiple clamping plates 31 to slide and clamp the drainage tube 6. As clamping plates 31 move, they drive rotating plate 53 to move, changing its angle. This causes rotating plate 53 to drive connecting rod 51 to slide axially in the housing 1 via connecting ring 52. Connecting rod 51 then drives sliding sleeve 4 to slide, thus driving sliding sleeve 4 to move axially in the housing 1. After clamping the drainage tube 6, the rotation of gear 56 is restricted by limiting member 58. Furthermore, limiting member 58 is an insert plate that slides within the housing 1 along the radial direction of gear 56. One end of the insert plate can be inserted into the tooth groove of gear 56, while the other end slides through to the outside of the housing 1. By inserting the insert plate into the tooth groove of the gear 56, the rotation of the gear 56 can be restricted, preventing the gear 56 from rotating and causing the clamping mechanism 3 to loosen.
[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A device for collecting exudate from thoracotomy and peritoneal puncture sites, characterized in that, include: The housing has an opening at one end, and a first dressing is provided at the opening of the housing. The other end of the housing has a connection port for the drainage tube to pass through. A partition ring is disposed inside the housing. One end of the partition ring is on the same plane as the opening of the housing, and the other end of the partition ring is fitted with the inner sidewall of the housing and fixedly connected to the housing. The clamping mechanism can clamp the drainage tube inside the housing; The separator ring includes a mounting ring and a rubber ring; the mounting ring is coaxially fixed inside the housing; one end of the rubber ring is fixedly installed inside the housing by the mounting ring, the rubber ring is coaxially arranged with the housing, and there is a certain gap between the rubber ring and the housing; It also includes a sliding sleeve and a control mechanism; the rubber ring is frustum-shaped, the large end of the rubber ring is fixedly mounted on the mounting ring, the sliding sleeve is coaxially slidably mounted inside the housing, and the outer ring of the sliding sleeve slides against the inner side wall of the housing, and the inner ring of the sliding sleeve slides against the outer side wall of the rubber ring; the control mechanism can drive the sliding sleeve to move in the axial direction of the housing, and the mounting ring is provided with a vent hole.
2. The device for collecting exudate from thoracotomy and peritoneal puncture sites according to claim 1, characterized in that, The small end of the rubber ring is provided with a second adhesive patch.
3. The device for collecting exudate from thoracotomy and peritoneal puncture sites according to claim 1, characterized in that, A sealing ring is coaxially fixedly installed on the inner ring of the sliding sleeve.
4. The device for collecting exudate from thoracotomy and peritoneal puncture sites according to claim 1, characterized in that, The clamping mechanism includes multiple clamping plates, which are arranged in a circular array with the axis of the housing as the center. The clamping plates are slidably installed inside the housing along the radial direction of the housing, and the control mechanism can drive the multiple clamping plates to slide.
5. The device for collecting exudate from thoracotomy and peritoneal puncture sites according to claim 4, characterized in that, The control mechanism includes a connecting rod, a connecting ring, a rotating plate, a slider, a gear ring, a gear, a knob, and a limiting component. The connecting rod is arranged along the axial direction of the housing, with one end sliding through the mounting ring and fixedly connected to the sliding sleeve, and the other end fixedly connected to the connecting ring. The rotating plate corresponds to multiple clamping plates, with one end hinged to the connecting ring and the other end hinged to the clamping plates. The gear ring is coaxially and rotatably installed inside the housing, and multiple sliding grooves are formed on the gear ring. These grooves are arranged in a circular array with the axis of the housing as the center, and are inclined. Each groove corresponds to a clamping plate, and a slider is fixedly installed on each clamping plate, sliding within the groove. The gear meshes with the gear ring, and the knob is located on the outside of the housing, coaxially and fixedly connected to the gear via a connecting shaft. The limiting component restricts the rotation of the gear.
6. The device for collecting exudate from thoracotomy and peritoneal puncture sites according to claim 5, characterized in that, The limiting member is an insert plate, which is slidably installed in the housing along the radial direction of the gear, and one end of the insert plate can be inserted into the tooth groove of the gear, while the other end of the insert plate slides through to the outside of the housing.
7. The device for collecting exudate from thoracotomy and peritoneal puncture sites according to claim 1, characterized in that, A rubber ring is installed at the connection port.
Citation Information
Patent Citations
Absorber for pleuroperitoneal effusion
CN210409097U